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(Updated: 2023/03/21)

About the journal

 

Basic information

 

The International Journal of Cardiovascular Sciences (Int. J. Cardiovasc. Sci.) is published by the Sociedade Brasileira de Cardiologia (Brazilian Society of Cardiology), and is issued on a bimonthly basis. Launched in 2015, this journal follows the previous ones, Revista da SOCERJ and Revista Brasileira de Cardiologia, created in 1998 and 2010, respectively. It is available in the online English version. 

Its abbreviated title is Int. J. Cardiovasc. Sci., which should be used in bibliographies, footnotes and bibliographical references and strips.

 

 

Disclosure

 

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Indexed in

 

The journal is indexed by:

  • Index Medicus Latino-Americano - LILACS
  • Scientific Electronic Library Online - SciELO
  • Directory of Open Access Journals - DOAJ
  • Scopus
 

 

Intellectual property

 

All content of the journal, except where identified, is licensed under a Creative Commons attribution type BY.

This work is licensed under a Creative Commons Attribution 4.0 International License.

CC BY - You are free to: Share - copy and redistribute the material in any medium or format, Adapt - remix, transform, and build upon the material for any purpose, even commercially.

 

 

Sponsors

 

Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ)

 

 


 

Editorial board

 

Editor-in-chief

   

 

SBC Scientific Committee

 
  • Denilson Campos de Albuquerque - Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, RJ, Brazil - denilsoncalbuquerque@gmail.com
  • Ibraim Masciarelli Francisco Pinto - Instituto Dante Pazzanese de Cardiologia, São Paulo, SP, Brazil - ibraim.pinto@gmail.com
  • Weimar Kunz Sebba Barroso de Souza - Liga de Hipertensão Arterial da Faculdade de Medicina da Universidade Federal de Goiás (UFG), Goiânia, GO, Brazil - sebbabarroso@gmail.com
 

 

Editorial Board – ABC Family

 
  • ABC Cardiol Editor-in-cheif: Carlos Eduardo Rochitte - Instituto do Coração do Hospital das Clínicas da Faculdade de Medicina da Universidade de São Paulo (INCOR/FMUSP), São Paulo, SP, Brazil - rochitte_editor@cardiol.br
  • IJCS Editor-in-cheif: Claudio Tinoco Mesquita - Hospital Universitário Antônio Pedro (HUAP), Universidade Federal Fluminense (UFF), Niterói, Rio de Janeiro, RJ - Brazil - claudiotinocomesquita@gmail.com
  • ABCHF Editor-in-cheif: Lídia Zytynski Moura - Pontifícia Universidade Católica do Paraná, Curitiba, PR, Brazil - lidia.moura@pucpr.br
  • ABC Imagem Cardiovascular Editor-in-cheif: Daniela do Carmo Rassi Frota - Faculdade de Medicina e Hospital das Clínicas da Universidade Federal de Goiás, Hospital São Francisco de Assis, Goiânia, GO, Brazil - dani.rassi@hotmail.com
  • Member of the SBC Scientific Committee: Denilson Campos de Albuquerque - Universidade do Estado do Rio de Janeiro (UERJ), Rio de Janeiro, RJ, Brazil - denilsoncalbuquerque@gmail.com
  • Member of the SBC Research and Innovation Committee: Celso Amodeo - Instituto Dante Pazzanese de Cardiologia, São Paulo, SP, Brasil - camodeo1854@gmail.com
  • Former Chief Editor of any of the ABC Family Journals: Fernando Bacal - Universidade de São Paulo (USP), São Paulo, SP, Brasil - fbacal@uol.com.br
 

 

Associate editors

   

 

Editorial comission

 

Brazil

Exterior

 

 

Editorial production

 

Arquivos Brasileiros de Cardiologia

Avenida Marechal Câmara, 160 - 3rd floor - Room 330 -
20020-907, Centro, Rio de Janeiro, RJ, Brazil
Tel: (21) 3478-2700 Fax: (21) 3478-2770
E-mail: revistaijcs@cardiol.br
Website: https://ijcscardiol.org/

Brazilian Society of Cardiology

Avenida Marechal Câmara, 160 - 3rd floor - Room 330 - 20020-907, Centro, Rio de Janeiro, RJ, Brazil. Tel: (21) 3478-2700
E-mail: sbc@cardiol.br

Editorial Production: SBC - Scientific Management - Internal Publications Center.

Graphic Design and Layout - SBC - Department Communication and Marketing Department - Internal Design

 

 

 

Instructions to authors

Why publishing in IJCS?

 
  • The International Journal of Cardiovascular Sciences (IJCS) has the role of complementing the journal ABC Cardiol in the representation of the national scientific production. Publication in IJCS is freely accessible to readers and no publication fees are charged to authors.
  • Mission: Publishing manuscripts about cardiovascular issues, emphasizing original manuscripts, covering epidemiology aspects, multidisciplinary studies, evaluations of health care quality, clinical study designs and single-center and multicenter studies, contributing to disseminating scientific production about cardiovascular sciences.
  • It is indexed in the LILACS and SciELO databases;
  • Published in the English version for FREE OF CHARGE (open access), on the website of the Brazilian Society of Cardiology and SciELO, to be viewed by the whole international community;
  • The authors are not required to pay any submission or review fees;
  • IJCS is advocates of Open Science;
  • IJCS accepts Preprint manuscripts.

Open Science

The term open science refers to a scientific practice model that is in line with the digital evolution that proposes the availability of information in web environments, as opposed to laboratory-confined research.1

The practice of open science involves the publication of research data, speedy editorial and communication processes through continuous publication of manuscripts and preprints, greater transparency in review processes and communication flows, and the pursuit of more comprehensive systems of review of manuscripts and journals.2,3

Preprint

A preprint is a complete scientific manuscript that the authors place in a public server. Preprints contain complete data and methodologies. They are published on the web within one day approximately, without peer review, and can be viewed for free by anyone in the world, on platforms currently developed for this purpose, allowing scientists to directly control the promotion of their work for the scientific community around the world. In most cases, the same work published as preprint is also submitted for peer review in a journal. Therefore, preprints (not validated by peer review) and the publication of journals (validated by peer review) work in parallel as a communication system for scientific research.4,5

Submitting a manuscript to a preprint platform is not considered double publishing. Submitted articles cannot have been previously published elsewhere, either in whole or in part, in the form of either book chapters or journal papers. Neither can they be simultaneously submitted to other journals. Manuscripts previously published in scientific conference proceedings, preprint platforms, as preliminary versions or working papers, are considered unpublished for these purposes.

Authors of manuscripts previously published on preprint servers must inform their online location (link, DOI etc.). They will be submitted to a blind review, in which reviewers are informed of authors’ identities. Manuscripts not previously published on preprint servers, on the other hand, go through a double-blind review, in which neither reviewers nor authors know each other’s identities. Comments received by manuscripts in preprints can be considered by editors during the peer review.

If the author of a manuscript that is in peer review at IJCS wants to deposit it on a preprint server, he/she must request the journal's authorization through an e-mail: revistaijcs@cardiol.br.

See below the complete list of preprints servers accepted by the journal:

Name

Link

Area

Publisher/Maintainer

SciELO Preprints

https://preprints.scielo.org/

Multidisciplicar

SciELO

MedRxiv

https://www.medrxiv.org/

Multidisciplicar

Cold Spring Harbor Laboratory

OSFPreprints

https://osf.io/preprints/

Multidisciplicar

Center of Open Science

Preprints

https://www.preprints.org/

Multidisciplicar

APSA/Cambridge

 

Accepted manuscripts previously published in preprint platforms must include a link to the version published in IJCS.

The journal IJCS seeks to keep its platform and rules constantly updated, in keeping with the practices of modern scientific publication. Today, we accept preprints and open science platforms to encourage communication among authors.

Sources:

  1. https://pt.wikipedia.org/wiki/Ci%C3%AAncia_aberta
  2. https://www.scielo20.org/
  3. http://www.ciencia-aberta.pt/sobre-ciencia-aberta
  4. http://blog.scielo.org/blog/2017/02/22/scielo-preprints-a-caminho/#.Wt3U2IjwY2w
  5. http://asapbio.org/preprint-info
 

 

Contents of manuscripts

 

TYPES OF MANUSCRIPTS

Original Article: The journal IJCS accepts all types of original cardiovascular research, including research in humans and experimental research. Clinical trials should follow specific recommendations. Note: Systematic analyses and meta-analyses are considered original manuscripts, not reviews.

Review Article: The editors send out invitations for most reviews. However, high-level studies conducted by authors or groups with previous publications on the subject will be welcome. In this section, any manuscripts whose main author does not have a comprehensive academic or publication background verified by Lattes (CNPQ), PubMed or SciELO will not be accepted. Note: Systematic analyses and meta-analyses are considered original manuscripts, not reviews.

Viewpoint: It presents the authors’ stance or opinion on a specific scientific theme. This stance or opinion must be sufficiently corroborated by the literature or their personal experience. These aspects will be the basis of the opinion being issued.

Case Report: Any cases including original descriptions of clinical observations or representing the originality of a given diagnosis or treatment or illustrating situations that do not occur very often in the clinical practice, which deserve a deeper understanding and more attention from cardiologists.

Brief Communication: Original experiences whose relevance to the knowledge of a subject justifies the presentation of initial data of small series, or partial data of clinical trials.

Editorial: Subjects or manuscripts critically addressed by a subject-matter specialist. All IJCS editorials are published upon invitation. We will not accept editorials submitted spontaneously.

Letter to the Editor: Correspondence of scientific content related to manuscripts published in IJCS and evaluated for publication two months before. The authors of the original manuscript will be invited to respond.

 

 

Organization of manuscript and technical standards

 

 
  • Language:
    IJCS is an English publication. Articles must be submitted in English.
    Manuscripts in Portuguese, indicated by the journal Arquivos Brasileiros de Cardiologia for publication in the IJCS, may be translated by SBC or be the responsibility of the author. Check Translation item.
  • Composition:
    Note: The texts must be edited in a word processor (example: Microsoft® Word, Google Docs®, Writer®).

ORIGINAL ARTICLE

1 - First page/Cover page

  • It must contain the full concise and descriptive title of the manuscript in Portuguese.
  • It must contain the full title in English.
  • It must contain a short title (up to 50 characters, including spaces) to be used in the header of the other pages of the manuscript.
  • Three to five descriptors (keywords) should be included, as well as their translation in English. The keywords should be looked for on the following websites: http://decs.bvs.br/, which contains terms in Portuguese, Spanish and English or www.nlm.nih.gov/mesh, for terms in English only.
  • The word count of the manuscript must be informed.

2 -  Abstract

  • Abstract of up to 250 words.
  • Structured around five sections:
    • Background (rationale for the study);
    • Objectives;
    • Methods (brief description of the methodology used);
    • Results (only the main and most significant ones);
    • Conclusions (brief sentence(s) with data interpretation).
  • Please do not include any references in the abstract.
  • Please include absolute numbers in the results, together with their verified statistical significance with p value, percentages (%) and other methods of analysis. Data without any verified statistical significance will not be accepted. For example: “the measure went up, down” etc.).

3 - Body of the Manuscript

It should be divided into five sections: introduction, methods, results, discussion and conclusions.

Introduction:

  • We suggest not to exceed 350 words.
  • Describe the study background, justifying it based on the literature, outlining the scientific gap that prompted the investigation and why
  • In the last paragraph, emphasize the primary and secondary objectives of the study based on the scientific gap to be investigated.

Methods:

  • Describe in detail how the observational or experimental research subjects were selected (patients or animals under experimentation, including the control group, if any), including age and gender.
  • The definition of breeds should be used where possible and should be made clear and when relevant to the subject explored.
  • Describe the equipment and reagents used (including manufacturer’s name, model and country of manufacture, where appropriate) and give details of procedures and techniques to allow other researchers to reproduce your data.
  • Describe the methods in detail, informing what they were used for, and their capabilities and limitations.
  • Describe all drugs used, including doses and routes of administration.
  • Describe the protocol used (interventions, outcomes, methods of allocation, masking and statistical analysis).
  • For studies on humans, establish whether the manuscript was approved by a Research Ethics Committee, if the patients signed the informed consent form and if it complies with resolution 466/2012.
  • Describe the statistical methods that were used to derive the results and justify.

Results:

  • Clearly displayed, they should be subdivided into items where possible, and supported by a few charts, tables, and figures. Avoid redundancy in data presentation, such as in both the body of the manuscript and in tables.
  • It is of the utmost importance that the statistical significance be properly substantiated.

Discussion:

  • It is directly related to the theme proposed when analyzed in the light of the literature, highlighting new and important aspects of the study, its implications and limitations. Comparison with previously published manuscripts addressing the same subject of research is an important point. The comparison should highlight the new inputs brought by the results of the study and its clinical or translational implications. The last paragraph should express conclusions or, if relevant, recommendations and clinical implications.

Conclusions:

  • They must respond directly to the objectives proposed in the study and be strictly based on the data. Conclusions not ultimately based on the results presented in the manuscript may lead to the manuscript not being directly accepted in the review process. Short and objective statements should account for the main findings of the manuscript, based on the results.
  • Check the information on original manuscripts of clinical research/clinical trials.

4 - Acknowledgements

  • They should come in the end. In this section, you can acknowledge all sources of support to the research project, as well as individual contributions.
  • Each person mentioned in the acknowledgments section should send a letter authorizing the inclusion of their names, as this may be construed as endorsement of the data and conclusions.
  • No written consent is required from the team members, or external partners, as long as their role is described in the acknowledgments.

- Figures and Tables

  • The number of tables and figures recommended for this type of manuscript can be found by accessing the summary table below.
  • Tables: These should be numbered by order of appearance and adopted when necessary to help the readers understand the contents laid out in the manuscript. Tables should not contain any data previously reported in the text. Indicate the footer markers in the following order: *, †, ‡, §, //, ¶, #, **, ††, etc. Tables must be edited in Word or similar software. The authors should use the standard tables and figures recommended by ABNT. According to these standards, tables should not have any side lines, should be identified by number and title, which should come above the table. The source, even if it is the author himself, should come below it.
  • Figures: Figures must be in good resolution so they can be evaluated by the reviewers. As per the ABNT standards, illustrations must present a descriptive word, the number according to the order of appearance, and the title above the image. The source should come below. Any abbreviations used in the illustrations should be explained in the legends. It is mandatory to send a central illustration that summarizes the main data of the article, that is, a central illustration of the results of the article. You can use assemblies of other article figures or create a new image. 
    Example of a central illustration of the journal ABC Cardiol:
    Access to the article: https://abccardiol.org/en/article/position-statement-on-cardiovascular-safety-of-vaccines-against-covid-19-2022/
  • Figures and illustrations should be attached in separate files, in the appropriate section in ​​the system, with a JPEG, PNG or TIFF extension.
  • Images and videos: Approved manuscripts containing scans (e.g., echocardiograms and coronary angiography films) should be submitted via the manuscript submission system as motion pictures in MP4 format.

- References

  • IJCS adopts the Vancouver Standards - Uniform Requirements for Manuscripts Submitted to Biomedical Journals.
  • References should be cited numerically, as they appear in the text, in superscript.
  • If more than two references are cited in sequence, only the first and last references should be typed, separated by a dash (Example: 5-8).
  • In case of alternate citation, all references must be typed, separated by a comma (Example: 12, 19, 23). Abbreviations should be spelled out when they first appear in the text.
  • References should be aligned to the left.
  • Personal communications and unpublished data should not be included in the references list; they should only be mentioned in the text and as a footnote on the page where they are mentioned.
  • Only mention all of the authors if there are six or fewer authors, or only the first six authors followed by et al., if there are more than six authors.
  • Abbreviations of the journal title must conform to the Index Medicus/Medline - List of Journals Indexed in Index Medicus or as established at https://portal.issn.org/
  • Only indexed journals can be cited. Any books cited must have an ISBN number (International Standard Book Number).
  • Abstracts presented in conferences will only be accepted up to two years after they were presented and their references must include the term “abstract from a conference” or “abstract.”
  • The number of references recommended for each type of article can be found in the summary table.
  • Policy of appreciation: The editors encourage the authors to cite articles published in IJCS and those coming from the Brazilian scientific community.

7 - Type of study

  • Authors must conform with the following recommendation when writing original articles (more information in Types of studies section):
    • Observational articles: STROBE
    • Clinical trials: CONSORT
    • Accuracy of diagnostic tests: STARD
    • Systematic review and meta-analysis: PRISMA
    • Case report: CARE 

REVIEW ARTICLE

1 - First page/Cover page 

  • It must contain the full concise and descriptive title of the manuscript in Portuguese.
  • It must contain the full title in English.
  • It must contain a short title (with up to 50 characters, including spaces) to be used in the header of the other pages of the manuscript.
  • Three to five descriptors (keywords) should be included, as well as their translation in English. The keywords should be consulted on the websites http://decs.bvs.br/, which contains terms in Portuguese, Spanish and English or on www.nlm.nih.gov/mesh, for terms in English only.
  • The word count of the manuscript must be informed.

2 - Abstract: No specific structure is required. A 250-word limit must be respected.

3 - Body of the manuscript: No specific structure is required. The word count must be respected.

4 - Acknowledgements:

  • These should come in the end. In this section, all sources of support as well as individual contributions can be acknowledged.
  • Each person mentioned in the acknowledgments section should send a letter authorizing the inclusion of their names, as this may be construed as endorsement of the data and conclusions.
  • No written consent is required from the team members, or external partners, as long as their role is described in the acknowledgments.

5 - Figures and tables

  • The number of tables and figures recommended for this type of manuscript can be found by accessing the summary table below.
  • Tables: These should be numbered by order of appearance and adopted when necessary to help the readers understand the contents laid out in the manuscript. Tables should not contain any data previously reported in the text. Indicate the footer markers in the following order: *, †, ‡, §, //, ¶, #, **, ††, etc. Tables must be edited in Word or similar software. The authors should use the standard tables and figures recommended by ABNT. According to these standards, tables should not have any side lines, should be identified by number and title, which should come above the table. The source, even if it is the author himself, should come below it.
  • Figures: Figures must be in good resolution so they can be evaluated by the reviewers. As per the ABNT standards, illustrations must present a descriptive word, the number according to the order of appearance, and the title above the image. The source should come below. Any abbreviations used in the illustrations should be explained in the legends. It is desirable that figure 1 be the one that best summarizes the main data of the manuscript, i.e., the main illustration for the manuscript results. Collages of images can be included. It is mandatory to send a central illustration that summarizes the main data of the article, that is, a central illustration of the results of the article. You can use assemblies of other article figures or create a new image.   Example of a central illustration of the journal ABC Cardiol:Access to the article: https://abccardiol.org/en/article/position-statement-on-cardiovascular-safety-of-vaccines-against-covid-19-2022/
  • Figures and illustrations should be attached in separate files, in the appropriate section in ​​the system, with a JPEG, PNG or TIFF extension.
  • Images and videos: Approved manuscripts containing scans (e.g., echocardiograms and coronary angiography films) should be submitted via the manuscript submission system as motion pictures in MP4 format.

6 - References

  • IJCS adopts the Vancouver Standards - Uniform Requirements for Manuscripts Submitted to Biomedical Journals.
  • References should be cited numerically, as they appear in the text, in superscript.
  • If more than two references are cited in sequence, only the first and last references should be typed, separated by a dash (Example: 5-8).
  • In case of alternate citation, all references must be typed, separated by a comma (Example: 12, 19, 23). Abbreviations should be spelled out when they first appear in the text.
  • References should be aligned to the left.
  • Personal communications and unpublished data should not be included in the references list; they should only be mentioned in the text and as a footnote on the page where they are mentioned.
  • Only mention all of the authors if there are six or fewer authors, or only the first six authors followed by et al., if there are more than six authors.
  • Abbreviations of the journal must conform to Index Medicus/Medline - List of Journals Indexed in Index Medicus or as established at https://portal.issn.org/
  • Only indexed journals can be cited. Any books cited must have an ISBN number (International Standard Book Number).
  • Abstracts presented in conferences will only be accepted up to two years after they were presented and their references must include the term “abstract from a conference” or “abstract.”
  • The number of references recommended for each type of article can be found in the summary table.
  • Policy of appreciation: The editors encourage the authors to cite articles published in IJCS and those coming from the Brazilian scientific community.

VIEWPOINT  

1 - First page/Cover page 

  • It must contain the full concise and descriptive title of the manuscript in Portuguese.
  • It must contain the full title in English.
  • It must contain a short title (with up to 50 characters, including spaces) to be used in the header of the other pages of the manuscript.
  • Three to five descriptors (keywords) should be included, as well as their translation in English. The keywords should be looked for at http://decs.bvs.br/, which contains terms in Portuguese, Spanish and English or at www.nlm.nih.gov/mesh, for terms in English only.
  • The word count of the manuscript must be informed.

2 - Body of the manuscript: No specific structure is required. The word count must be respected.

3 - Acknowledgements

  • These should come in the end. In this section, all sources of support as well as individual contributions can be acknowledged.
  • Each person mentioned in the acknowledgments section should send a letter authorizing the inclusion of their names, as this may be construed as endorsement of the data and conclusions.
  • No written consent is required from the team members, or external partners, as long as their role is described in the acknowledgments.

4 - Figures and tables

  • The number of tables and figures recommended for this type of manuscript can be found by accessing the summary table below.
  • Tables: These should be numbered by order of appearance and adopted when necessary to help the readers understand the contents laid out in the manuscript. Tables should not contain any data previously reported in the text. Indicate the footer markers in the following order: *, †, ‡, §, //, ¶, #, **, ††, etc. Tables must be edited in Word or similar software. The authors should use the standard tables and figures recommended by ABNT. According to these standards, tables should not have any side lines, should be identified by number and title, which should come above the table. The source, even if it is the author himself, should come below it.
  • Figures: Figures must be in good resolution so they can be evaluated by the reviewers. As per the ABNT standards, illustrations must present a descriptive word, the number according to the order of appearance, and the title above the image. The source should come below. Any abbreviations used in the illustrations should be explained in the legends. It is desirable that figure 1 be the one that best summarizes the main data of the manuscript, i.e., the main illustration for the manuscript results. Collages of images can be included.
    Figures and illustrations should be attached in separate files, in the appropriate section in ​​the system, with a JPEG, PNG or TIFF extension.
  • Images and videos: Approved manuscripts containing scans (e.g., echocardiograms and coronary angiography films) should be submitted via the manuscript submission system as motion pictures in MP4 format.

5 - References

  • IJCS adopts the Vancouver Standards - Uniform Requirements for Manuscripts Submitted to Biomedical Journals.
  • References should be cited numerically, as they appear in the text, in superscript.
  • If more than two references are cited in sequence, only the first and last references should be typed, separated by a dash (Example: 5-8).
  • In case of alternate citation, all references must be typed, separated by a comma (Example: 12, 19, 23). Abbreviations should be spelled out when they first appear in the text.
  • References should be aligned to the left.
  • Personal communications and unpublished data should not be included in the references list; they should only be mentioned in the text and as a footnote on the page where they are mentioned.
  • Only mention all of the authors if there are six or fewer authors, or only the first six authors followed by et al., if there are more than six authors.
  • Abbreviations of the journal must conform to Index Medicus/Medline - List of Journals Indexed in Index Medicus or as established at https://portal.issn.org/
  • Only indexed journals can be cited. Any books cited must have an ISBN number (International Standard Book Number).
  • Abstracts presented in conferences will only be accepted up to two years after they were presented and their references must include the term “abstract from a conference” or “abstract.”
  • The number of references recommended for each type of article can be found in the summary table.
  • Policy of appreciation: The editors encourage the authors to cite articles published in IJCS and those coming from the Brazilian scientific community.

CASE REPORT  

1 - First page/Cover page 

  • It must contain the full concise and descriptive title of the manuscript in Portuguese.
  • It must contain the full title in English.
  • It must contain a short title (with up to 50 characters, including spaces) to be used in the header of the other pages of the manuscript.
  • Three to five descriptors (keywords) should be included, as well as their translation in English. The keywords should be looked for at http://decs.bvs.br/, which contains terms in Portuguese, Spanish and English or at www.nlm.nih.gov/mesh, for terms in English only.
  • The word count of the manuscript must be informed.

2 - Case Report: No specific structure is required. We suggest to include diagnostic hypotheses, description of the methods, a conclusion with the outcome of the case, its relevance and a final message. The word count must be respected.

3 - Acknowledgements:

  • These should come in the end. In this section, all sources of support as well as individual contributions can be acknowledged.
  • Each person mentioned in the acknowledgments section should send a letter authorizing the inclusion of their names, as this may be construed as endorsement of the data and conclusions.
  • No written consent is required from the team members, or external partners, as long as their role is described in the acknowledgments.

4 - Figures and tables

  • The number of tables and figures recommended for this type of manuscript can be found by accessing the summary table below.
  • Tables: These should be numbered by order of appearance and adopted when necessary to help the readers understand the contents laid out in the manuscript. Tables should not contain any data previously reported in the text. Indicate the footer markers in the following order: *, †, ‡, §, //, ¶, #, **, ††, etc. Tables must be edited in Word or similar software. The authors should use the standard tables and figures recommended by ABNT. According to these standards, tables should not have any side lines, should be identified by number and title, which should come above the table. The source, even if it is the author himself, should come below it.
  • Figures: Figures must be in good resolution so they can be evaluated by the reviewers. As per the ABNT standards, illustrations must present a descriptive word, the number according to the order of appearance, and the title above the image. The source should come below. Any abbreviations used in the illustrations should be explained in the legends. It is desirable that figure 1 be the one that best summarizes the main data of the manuscript, i.e., the main illustration for the manuscript results. Collages of images can be included.
    Figures and illustrations should be attached in separate files, in the appropriate section in ​​the system, with a JPEG, PNG or TIFF extension.
  • Images and videos: Approved manuscripts containing scans (e.g., echocardiograms and coronary angiography films) should be submitted via the manuscript submission system as motion pictures in MP4 format.

5 - References

  • IJCS adopts the Vancouver Standards - Uniform Requirements for Manuscripts Submitted to Biomedical Journals.
  • References should be cited numerically, as they appear in the text, in superscript.
  • If more than two references are cited in sequence, only the first and last references should be typed, separated by a dash (Example: 5-8).
  • In case of alternate citation, all references must be typed, separated by a comma (Example: 12, 19, 23). Abbreviations should be spelled out when they first appear in the text.
  • References should be aligned to the left.
  • Personal communications and unpublished data should not be included in the references list; they should only be mentioned in the text and as a footnote on the page where they are mentioned.
  • Only mention all of the authors if there are six or fewer authors, or only the first six authors followed by et al., if there are more than six authors.
  • Abbreviations of the journal must conform to Index Medicus/Medline - List of Journals Indexed in Index Medicus or as established at https://portal.issn.org/
  • Only indexed journals can be cited. Any books cited must have an ISBN number (International Standard Book Number).
  • Abstracts presented in conferences will only be accepted up to two years after they were presented and their references must include the term “abstract from a conference” or “abstract.”
  • The number of references recommended for each type of article can be found in the summary table.
  • Policy of appreciation: The editors encourage the authors to cite articles published in IJCS and those coming from the Brazilian scientific community.

BRIEF COMMUNICATION

1 - First page/Cover page 

  • It must contain the full concise and descriptive title of the manuscript in Portuguese.
  • It must contain the full title in English.
  • It must contain a short title (with up to 50 characters, including spaces) to be used in the header of the other pages of the manuscript.
  • Three to five descriptors (keywords) should be included, as well as their translation in English. The keywords should be looked for at http://decs.bvs.br/, which contains terms in Portuguese, Spanish and English or at www.nlm.nih.gov/mesh, for terms in English only.
  • The word count of the manuscript must be informed.

2 - Abstract: No specific structure is required. A 250-word limit must be respected.

3 - Body of the manuscript: No specific structure is required. The word count must be respected. The manuscript must contain data or initial experiments of a scientific investigation.

4 - Acknowledgements:

  • These should come in the end. In this section, all sources of support as well as individual contributions can be acknowledged.
  • Each person mentioned in the acknowledgments section should send a letter authorizing the inclusion of their names, as this may be construed as endorsement of the data and conclusions.
  • No written consent is required from the team members, or external partners, as long as their role is described in the acknowledgments.

5 - Figures and tables

  • The number of tables and figures recommended for this type of manuscript can be found by accessing the summary table below.
  • Tables: These should be numbered by order of appearance and adopted when necessary to help the readers understand the contents laid out in the manuscript. Tables should not contain any data previously reported in the text. Indicate the footer markers in the following order: *, †, ‡, §, //, ¶, #, **, ††, etc. Tables must be edited in Word or similar software. The authors should use the standard tables and figures recommended by ABNT. According to these standards, tables should not have any side lines, should be identified by number and title, which should come above the table. The source, even if it is the author himself, should come below it.
  • Figures: Figures must be in good resolution so they can be evaluated by the reviewers. As per the ABNT standards, illustrations must present a descriptive word, the number according to the order of appearance, and the title above the image. The source should come below. Any abbreviations used in the illustrations should be explained in the legends. It is desirable that figure 1 be the one that best summarizes the main data of the manuscript, i.e., the main illustration for the manuscript results. Collages of images can be included.
    Figures and illustrations should be attached in separate files, in the appropriate section in ​​the system, with a JPEG, PNG or TIFF extension.
  • Images and videos: Approved manuscripts containing scans (e.g., echocardiograms and coronary angiography films) should be submitted via the manuscript submission system as motion pictures in MP4 format.

6 - References

  • IJCS adopts the Vancouver Standards - Uniform Requirements for Manuscripts Submitted to Biomedical Journal.
  • References should be cited numerically, as they appear in the text, in superscript.
  • If more than two references are cited in sequence, only the first and last references should be typed, separated by a dash (Example: 5-8).
  • In case of alternate citation, all references must be typed, separated by a comma (Example: 12, 19, 23). Abbreviations should be spelled out when they first appear in the text.
  • References should be aligned to the left.
  • Personal communications and unpublished data should not be included in the references list; they should only be mentioned in the text and as a footnote on the page where they are mentioned.
  • Only mention all of the authors if there are six or fewer authors, or only the first six authors followed by et al., if there are more than six authors.
  • Abbreviations of the journal must conform to Index Medicus/Medline - List of Journals Indexed in Index Medicus or as established at https://portal.issn.org/
  • Only indexed journals can be cited. Any cited books must have an ISBN number (International Standard Book Number).
  • Abstracts presented in conferences will only be accepted up to two years after they were presented and their references must include the term “abstract from a conference” or “abstract.”
  • The number of references recommended for each type of article can be found in the summary table. Acesso à tabela em excel.
  • Policy of appreciation: The editors encourage the authors to cite articles published in IJCS and those coming from the Brazilian scientific community.

EDITORIAL

1 - First page/Cover page 

  • It must contain the full concise and descriptive title of the manuscript in Portuguese.
  • It must contain the full title in English.
  • It must contain a short title (with up to 50 characters, including spaces) to be used in the header of the other pages of the manuscript.
  • Three to five descriptors (keywords) should be included, as well as their translation in English. The keywords should be looked for at http://decs.bvs.br/, which contains terms in Portuguese, Spanish and English or at www.nlm.nih.gov/mesh, for terms in English only.
  • The word count of the manuscript must be informed.

2 - Body of the manuscript: No specific structure is required. The word count must be respected.

3 - Acknowledgements:

  • These should come in the end. In this section, all sources of support as well as individual contributions can be acknowledged.
  • Each person mentioned in the acknowledgments section should send a letter authorizing the inclusion of their names, as this may be construed as endorsement of the data and conclusions.
  • No written consent is required from the team members, or external partners, as long as their role is described in the acknowledgments.

4 - Figures and tables

  • The number of tables and figures recommended for this type of manuscript can be found by accessing the summary table below.
  • Tables: These should be numbered by order of appearance and adopted when necessary to help the readers understand the contents laid out in the manuscript. Tables should not contain any data previously reported in the text. Indicate the footer markers in the following order: *, †, ‡, §, //, ¶, #, **, ††, etc. Tables must be edited in Word or similar software. The authors should use the standard tables and figures recommended by ABNT. According to these standards, tables should not have any side lines, should be identified by number and title, which should come above the table. The source, even if it is the author himself, should come below it.
  • Figures: Figures must be in good resolution so they can be evaluated by the reviewers. As per the ABNT standards, illustrations must present a descriptive word, the number according to the order of appearance, and the title above the image. The source should come below. Any abbreviations used in the illustrations should be explained in the legends. It is desirable that figure 1 be the one that best summarizes the main data of the manuscript, i.e., the main illustration for the manuscript results. Collages of images can be included.
  • Figures and illustrations should be attached in separate files, in the appropriate section in ​​the system, with a JPEG, PNG or TIFF extension.
  • Images and videos: Approved manuscripts containing scans (e.g., echocardiograms and coronary angiography films) should be submitted via the manuscript submission system as motion pictures in MP4 format.

5 - References

  • IJCS adopts the Vancouver Standards - Uniform Requirements for Manuscripts Submitted to Biomedical Journal.
  • References should be cited numerically, as they appear in the text, in superscript.
  • If more than two references are cited in sequence, only the first and last references should be typed, separated by a dash (Example: 5-8).
  • In case of alternate citation, all references must be typed, separated by a comma (Example: 12, 19, 23). Abbreviations should be spelled out when they first appear in the text.
  • References should be aligned to the left.
  • Personal communications and unpublished data should not be included in the references list; they should only be mentioned in the text and as a footnote on the page where they are mentioned.
  • Only mention all of the authors if there are six or fewer authors, or only the first six authors followed by et al., if there are more than six authors.
  • Abbreviations of the journal must conform to Index Medicus/Medline - List of Journals Indexed in Index Medicus or as established at https://portal.issn.org/
  • Only indexed journals can be cited. Any cited books must have an ISBN number (International Standard Book Number).
  • Abstracts presented in conferences will only be accepted up to two years after they were presented and their references must include the term “abstract from a conference” or “abstract.”
  • The number of references recommended for each type of article can be found in the summary table. Acesso à tabela em excel.
  • Policy of appreciation: The editors encourage the authors to cite articles published in IJCS and those coming from the Brazilian scientific community.

 
LETTER TO THE EDITOR

1 - First page/Cover page 

  • It must contain the full concise and descriptive title of the manuscript in Portuguese.
  • It must contain the full title in English.
  • It must contain a short title (with up to 50 characters, including spaces) to be used in the header of the other pages of the manuscript.
  • Three to five descriptors (keywords) should be included, as well as their translation in English. The keywords should be looked for at http://decs.bvs.br/, which contains terms in Portuguese, Spanish and English or at www.nlm.nih.gov/mesh, for terms in English only.
  • The word count of the manuscript must be informed.

2 - Body of the manuscript: No specific structure is required. The word count must be respected.

Note: The author of the referenced article will be contacted for a response.  

3 - Figures and tables

  • The number of tables and figures recommended for this type of manuscript can be found by accessing the summary table below.
  • Tables: These should be numbered by order of appearance and adopted when necessary to help the readers understand the contents laid out in the manuscript. Tables should not contain any data previously reported in the text. Indicate the footer markers in the following order: *, †, ‡, §, //, ¶, #, **, ††, etc. Tables must be edited in Word or similar software. The authors should use the standard tables and figures recommended by ABNT. According to these standards, tables should not have any side lines, should be identified by number and title, which should come above the table. The source, even if it is the author himself, should come below it.
  • Figures: Figures must be in good resolution so they can be evaluated by the reviewers. As per the ABNT standards, illustrations must present a descriptive word, the number according to the order of appearance, and the title above the image. The source should come below. Any abbreviations used in the illustrations should be explained in the legends. It is desirable that figure 1 be the one that best summarizes the main data of the manuscript, i.e., the main illustration for the manuscript results. Collages of images can be included.
    Figures and illustrations should be attached in separate files, in the appropriate section in ​​the system, with a JPEG, PNG or TIFF extension.
  • Images and videos: Approved manuscripts containing scans (e.g., echocardiograms and coronary angiography films) should be submitted via the manuscript submission system as motion pictures in MP4 format.

4 - References

  • IJCS adopts the Vancouver Standards - Uniform Requirements for Manuscripts Submitted to Biomedical Journal.
  • References should be cited numerically, as they appear in the text, in superscript.
  • If more than two references are cited in sequence, only the first and last references should be typed, separated by a dash (Example: 5-8).
  • In case of alternate citation, all references must be typed, separated by a comma (Example: 12, 19, 23). Abbreviations should be spelled out when they first appear in the text.
  • References should be aligned to the left.
  • Personal communications and unpublished data should not be included in the references list; they should only be mentioned in the text and as a footnote on the page where they are mentioned.
  • Only mention all of the authors if there are six or fewer authors, or only the first six authors followed by et al., if there are more than six authors.
  • Abbreviations of the journal must conform to Index Medicus/Medline - List of Journals Indexed in Index Medicus or as established at https://portal.issn.org/
  • Only indexed journals can be cited. Any cited books must have an ISBN number (International Standard Book Number).
  • Abstracts presented in conferences will only be accepted up to two years after they were presented and their references must include the term “abstract from a conference” or “abstract.”
  • The number of references recommended for each type of article can be found in the summary table. Acesso à tabela em excel.
  • Policy of appreciation: The editors encourage the authors to cite articles published in IJCS and those coming from the Brazilian scientific community.  
  • Supplementary Material:

The authors can submit supplementary material attached to their manuscript, the publication of which will be online only if there is not enough space to include it in the printed article. The supplementary material must be relevant to the understanding and interpretation of the manuscript and must not repeat information from the printed article. The inclusion of supplementary material - which must be original and unpublished – must be limited and reasonable.

The supplementary material will undergo editorial and peer review along with the main manuscript. If the manuscript is accepted for publication and if the supplementary material is considered suitable for publication by the editors, it will be published online upon publication of the manuscript as additional material provided by the authors. The material will not be edited or formatted, so the authors are responsible for the accuracy and presentation of the entire material. Each supplementary material must be identified as such upon submission of the manuscript and cited in the manuscript.

 

 Summary table of the structuring of articles

SUMMARY TABLE OF THE STRUCTURING OF ARTICLES

 

GROUP 1

GROUP 2

GROUP 3

Type of manuscript

Original Article

Review Article

Viewpoint

Case Report

Brief Communication

Editorial

Letter to the Editor

Maximum number of authors

unlimited

unlimited

8

6

8

3

3

    Title (characters including spaces)

150

150

150

150

150

150

150

Running Title (characters including spaces)

50

50

50

50

50

50

50

Abstract (maximum number of words)

250

250

NA

NA

250

NA

NA

Body text (maximum number of words)

5000*

6500*

5000*

1500*

1500*

1500*

800*

Suggested number of references

40

80

20

10

10

15

5

Suggested number of tables, figures and video

8

8

4

2

2

2

1

  *The accounting described takes into account: Title, short title, keywords, abstract, text, references and figure captions.

 NA = not applicable

 

Required documents for approved manuscripts

 

Original Article, Review Article, Viewpoint, Case Report, Brief Communication:

1 - Author’s online registration in the submission system: Registration details, ORCiD number, pre-print usage information (if used).

ORCiD: The ORCiD (Open Researcher and Contributor ID) is a unique, free and persistent digital identifier that distinguishes one scholar/researcher from another and solves the problem of the ambiguity and similarity of names of authors and individuals, replacing name variations with a single numeric code. To register your ORCiD ID, go to: https://orcid.org/register.

2 - Conflict of interest: Form filled out and signed by the first author, informing when there is any relationship between the authors and any public or private entity that could derive some conflict of interest. This information must be included in the end of the manuscript. Click.

3 - Author contribution form: Form filled out and signed by the first author stating the contributions of all participants. This information must be included in the end of the manuscript. Click.

4 - Copyrights: Form filled out and signed by all co-authors authorizing the transfer of copyrights. Click.

5 - Ethics: Form filled out and signed by the first author stating whether the research was approved by the Research Ethics Committee of their institution. Click.

  • In experiments involving animals, the standards established in the Guide for the Care and Use of Laboratory Animals (Institute of Laboratory Animal Resources, National Academy of Sciences, Washington, D.C., 1996) and the Ethical Principles in Animal Experiments of the Brazilian Council of Animal Experimentation (COBEA) must be respected.
  • In experiments involving humans, the authors must state whether the procedures have followed the ethical standards established by the institutional and national human experimentation committee and the Declaration of Helsinki of 1975, revised in 2008. Studies conducted with humans should be in line with the ethical standards and must include the participants’ informed consent, as per Resolution 466/2012 of the National Health Council of the Ministry of Health of Brazil, which deals with the Code of Ethics for Research on Human Beings and, for authors outside Brazil, they must be in keeping with the Committee on Publication Ethics (COPE). Have a look at Specific documentations and definitions for clinical trials for further information.

Editorial, Letter to the editor, Short editorial:

1 - Author’s online registration in the submission system: Registration details, ORCiD number, pre-print usage information (if used).

ORCiD: The ORCiD (Open Researcher and Contributor ID) is a unique, free and persistent digital identifier that distinguishes one scholar/researcher from another and solves the problem of the ambiguity and similarity of names of authors and individuals, replacing name variations with a single numeric code. To register your ORCiD ID, go to: https://orcid.org/register.

2 - Copyrights: Form filled out and signed by all co-authors authorizing the transfer of copyrights. Click.

Types of study - Conformation for approval

Clinical trial/experimental study (consort compliant)

Reports of randomized trials must conform to the revised CONSORT guidelines and should be submitted with their protocols and a completed CONSORT checklist. All reports of clinical trials must include a summary of previous research findings and explain how the submittedtrial affects this summaryof previous findings. Cluster randomized trials should be reported according to extended CONSORT guidelines. Randomized trials reporting harms must be described according to extended CONSORT guidelines. All reports of randomized trials should include a section entitled “Randomization and masking” within the methods section. For information regarding CONSORT guidelines, please visit http://www.consort-statement.org.

Observational study (strobe compliant)

Observational research comprises several study designs and many topic areas. The STROBE statement should be used when reporting such research. The STROBE recommendations apply to the three main analytical designs usedin observational research: cohort, case-control, and cross-sectional studies. The STROBE statement consists of a 22-item checklist. For information regarding STROBE guidelines, please visit http://www.strobe-statement.org.

*Please note that IJCS uses a customized version of the STROBE checklist, available only at http://www.editorialmanager.com/md in the “Files & Resources” section of the home page.

Systematic review and meta-analysis (prisma compliant)

Systematic reviews and meta-analyses must be reported according to PRISMA guidelines, an evidence-based minimum set of items createdto help authors improve the reporting of systematic reviews and meta-analyses. The PRISMA Statement consists of a 27-item checklist and a four-phase flow diagram. For information regarding PRISMA guidelines, please visit http://www.prisma-statement.org.

Meta-analysis of observational studies in epidemiology (moose compliant)

Systematic reviews and meta-analyses of observational studies in epidemiology should be reported according to MOOSE guidelines. For more information regarding MOOSE guidelines, please visit http://www.equator-network.org/reporting-guidelines/meta-analysis-of-observational-studies-in-epidemiology-a-proposal-for-reporting-meta-analysis-of-observational-studies-in-epidemiology-moose-group/.

Diagnostic accuracy study (stard compliant)

Investigators reporting studies of diagnostic accuracy should adhere to the STARD statement, partof the STARD initiative to improve the accuracy and completeness of reporting of studies of diagnostic accuracy, to allow readers to assess the potential for bias in astudy (internal validity) and to evaluate a study’sgeneralizability (external validity). The STARD statement consists of a 25-item checklist and recommends the use of a flow diagram to describe the design of the study and the flow of patients. For information regarding STARD guidelines, please visit http://www.stard-statement.org

Quality improvement study (squire compliant)

The SQUIRE statement helpsauthors write excellent, usable articles about quality improvement in healthcare so that findings may be easily discovered and widely disseminated. The SQUIRE statement consists of a 19-itemchecklist. The SQUIRE guidelines are not exclusive of other guidelines. For example, an improvement project or effectiveness study that used a randomized controlled trial design should consider using both the CONSORT and the SQUIRE guidelines.In these cases, both checklists should be uploaded as a single document.For more information regarding SQUIRE guidelines, please visit http://squire-statement.org/.

*Please note that IJCS uses a customized version of the SQUIRE checklist, available only at http://www.editorialmanager.com/md in the “Files &Resources” section of the home page.

Economic evaluation study (cheers compliant)

Developed by the ISPOR Quality Improvement in Cost-Effectiveness Research Task Force, the CHEERS statement supports the quality, consistency, and transparency of health economic and outcomes research reporting in the biomedical literature. The CHEERS statement includes a 24-item checklist. For more information regarding CHEERSguidelines, please visit http://www.ispor.org/taskforces/EconomicPubGuidelines.asp.

Clinical case report (care compliant)

The CARE guidelines provide a framework to support the need for completeness, transparency and data analysis in case reports and data from the point of care. The main tools of CARE are the CARE Statement, CARE checklist, and a Case Report Writing Template.  These products offer a rationale and a standardized format for authors to prepare more complete and transparent case reports. For more information regarding CARE guidelines, please visit http://www.care-statement.org/.

Ethics: human studies

Studies on patients or volunteers must be receive ethics committee approval and informed consent, which should be documented in the paper, including the approval number. Patients have a right to privacy. Authors should remove information from photographs and manuscripts that might identify a patient. Where this is impossible, submissions must be accompanied by a written release from the patient. It is the author's responsibility to ensure that patients' privacy is protected. Authors should pay close attention to images that contain identifiable individual patient characteristics or data such as eyes, date of birth, case number, initials, birthmarks, etc. Informed consent should be obtained in writing from the patient if there is concern that a patient's anonymity cannot be maintained in written text or with use of photographs or video.

Written consents must be provided to the editorial office on request. Even where consent has been given, identifying details should be omitted if they are not essential. If identifying characteristics are altered to protect anonymity, such as in genetic pedigrees, authors should provide assurance that alterations do not distort scientific meaning and editors should so note. If such consent has not been obtained, personal details of patients included in any part of the paper and in any supplementary materials (including all illustrations and videos) must be removed before submission.

Animal research and studies 

In experiments involving animals, the standards established in the Guide for the Care and Use of Laboratory Animals (Institute of Laboratory Animal Resources, National Academy of Sciences, Washington, D.C., 1996) and the Ethical Principles in Animal Experiments of the Brazilian Council of Animal Experimentation (COBEA) must be respected. Research must conform the following items:  1) animal care and use by qualified individuals, supervised by veterinarians, and all facilities and transportation must comply with current legal requirements and guidelines; 2) research involving animals should be done only when alternative methods to yield needed information are not possible; 3) anesthesia must be used in all surgical interventions, all unnecessary suffering should be avoided and research must be terminated if unnecessary pain or fear results; and 4) animal facilities must meet the international standards.

SAGER GUIDELINES

The IJCS journal recommends the application of the SAGER guidelines to all research with humans, animals or any material originating from humans and animals, as well as other disciplines whose results will be applied to humans, such as mechanics and engineering.

General principles

  • Authors should use the terms sex and gender carefully in order to avoid confusing both terms.
  • Where the subjects of research comprise organisms capable of differentiation by sex, the research should be designed and conducted in a way that can reveal sex-related differences in the results, even if these were not initially expected.
  • Where subjects can also be differentiated by gender (shaped by social and cultural circumstances), the research should be conducted similarly at this additional level of distinction.

Recommendations per section of the article

Title and abstract

If only one sex is included in the study, or if the results of the study are to be applied to only one sex or gender, the title and the abstract should specify the sex of animals or any cells, tissues and other material derived from these and the sex and gender of human participants.

Introduction

Authors should report, where relevant, whether sex and/or gender differences may be expected.

Methods

Authors should report how sex and gender were taken into account in the design of the study, whether they ensured adequate representation of males and females, and justify the reasons for any exclusion of males or females.

Results

Where appropriate, data should be routinely presented disaggregated by sex and gender. Sex- and gender-based analyses should be reported regardless of positive or negative outcome. In clinical trials, data on withdrawals and dropouts should also be reported disaggregated by sex.

Discussion

The potential implications of sex and gender on the study results and analyses should be discussed. If a sex and gender analysis was not conducted, the rationale should be given. Authors should further discuss the implications of the lack of such analysis on the interpretation of the results.

Access the full document of the SAGER guidelines.

Exclusive submission/Publication policy 

Manuscripts are considered for review only under the conditions that they are not under consideration elsewhere and that the data presented have not been previously published (including symposia, proceedings, transactions, books, articles published by invitation, and preliminary publications of any kind, excepting abstracts that do not exceed 500 words). On acceptance, transfer of copyright to the International Journal of Cardiovascular Sciences must be provided.

Relationship with industry policy – Conflict of interest exclusive 

All authors are required to disclose any relationship with industry and other relevant entities - financial or otherwise - within the past 2 years that might pose a conflict of interest in connection with the submitted article. All relevant relationships with industry, disclosures, and sources of funding for the work should be acknowledged on the title page, as should all institutional affiliations of the authors (including corporate appointments). This includes associations such as consultancies, stock ownership, or other equity interests or patent-licensing arrangements. If no relationship with industry exists, please state this on the title page. 

All forms are now signed and submitted electronically. Once a manuscript is accepted, form will be filled out and signed by the first author, informing when there is any relationship between the authors and any public or private entity that could derive some conflict of interest. This information must be included in the end of the manuscript. Click.

Statistic guidelines

Proper use of statistical methods as well as their correct description is of paramount importance for manuscripts published in IJCS. Therefore, some general guidelines apply to the information to be provided regarding statistical analysis (for further details, we suggest reading the European Heart Journal’s statistical guidelines).

1) About the sample: Details of both the population of interest and the procedures used to define the study sample.

2) Under Methods, there must be a subtopic exclusively addressed to the description of the statistical analysis used in the study, containing:

  • Presentation of continuous and/or categorical variables: continuous variables with normal distribution should be presented as mean and standard deviation and continuous variables with non-normal distribution should be presented as median and interquartile range. Categorical variables should be presented by absolute numbers and percentages, with the relevant confidence intervals.
  • Specifications of the software used in the statistical analyses, including its version.
  • The significance level adopted; and
  • As a general rule, statistical tests should always be bilateral rather than unilateral;
  • Description of statistical methods used. If more complex statistical methods are used, some reference literature should be provided for them;

3) As for the presentation of the results from statistical analyses:

  • The main results should always be described with their relevant confidence intervals;
  • Do not repeat in the body of the manuscript the data found in tables and figures;
  • Instead of presenting excessively long tables, use charts as an alternative to make it easier for the readers to understand the contents;
  • In tables, even if the p-value is not significant, state its value instead of “NS” (e.g., p = 0.29 instead of NS).

Plagiarism

Plagiarism policy for International Jounal of Cariovascular Sciences:

Plagiarism is not accepted in IJCS. It compromises the true meaning of Science. Plagiarism is defined when an author attempts to use someone else work as his or her own. Another form of plagiarism is self-plagiarism, ou duplication: it occurs when an author reuses significant parts of his or her own published work without appropriate references. Plagiarism is a scientific misconduct and will be addressed as such. When plagiarism is detected at any time before publication, the editorial office will take appropriate action as directed by the standards set forth by the Committee on Publication Ethics (COPE). For additional information, please visit http://www.publicationethics.org.

IJCS uses the iThenticate software to verifiy the originality of content submitted before publication. iThenticate checks submissions against millions of published research papers, and billions of web content. Authors, researchers and freelancers can also use iThenticate to screen their work before submission by visiting http://www.ithenticate.com.

Plagiarism detect before publishing:

IJCS editors will evaluate any case of plagiarism on its limits. If plagiarism is detected before publishing then we will inform the author(s) and will ask them to rewrite the content or use appropriate references from where the content has been taken. If more than 25% of the paper is plagiarized, then the article will be rejected and authors notified. 

How plagiarism is checked?

All the submitted manuscripts for publication are checked for plagiarism with online tools after submission and before starting review.

How is plagiarism handled?

The manuscripts in which the plagiarism is detected are handled based on the extent of the plagiarism.

10-25% Plagiarism: The manuscript is sent back to the author for content revision without entering the review process. 

> 25% Plagiarism: The manuscript will be rejected without the entering the review process. The authors are advised to revise the manuscript and resubmit the manuscript.

Plagiarism detection after publication

If a case of plagiarism is detected after IJCS had published the article we will contact the author's institute and funding agencies.

A determination of misconduct will lead the IJCS to publish a statement, linked online to and from the original paper, to note the plagiarism and to provide a reference to the plagiarised material. In severe cases (> 50% of plagiarism) the paper will be formally retracted.

Word count limits

The electronic word count should include the title, the cover page, abstract, text, references and figures/tables legends.

 

 

Translation

* Authors’ translation

1-  The author must submit the manuscript in English.

2- We advise everyone to have a professional review of English before sending, in case of necessary adjustments.

 

**Translation organized by SBC

  1. The papers submitted first to the Arquivos Brasileiros de Cardiologia in Portuguese and that were nominated for the IJCS may, with the author's acceptance, be translated into the IJCS:

    1.1- The authors must send an e-mail, to revistaijcs@cardiol.br, in up to 5 calendar days, informing whether it should be arranged by the journal or if they will provide the translation.
    1.2- Translation prices: Visit the jornal website.
    1.3- The authors have 7 calendar days to make payment through the member’s area. Enter your cardiol email and password. In the restricted area, access “Inscreva-se em Eventos e Cursos / Traduções” (Sign up for Events and Courses / Translations). Search for “Serviços de Tradução – IJCS Cardiol” (Translation Services – IJCS) and click on the green button, “inscrição” (registration), to choose the amount and form of payment. If you are not a SBC member, register using the link and, later, log in to the associated area described above. Send the payment receipt to the e-mail revistaijcs@cardiol.br informing the article ID.
    1.4- Once the translation is formatted, it will be sent to the author, who will have 5 days to undertake a few adjustments. If the author does not get back to us, that will be considered the final version.

    Failure to receive the payment within 7 days will result in cancellation.

 

 

The review process

 

Submission

To submit your manuscript, please visit https://mc04.manuscriptcentral.com/ijcs-scielo and register as an author. If you already have a reviewer login, you can use the same login. To submit your manuscript, please follow the steps below.

 

 

submission

 

 

 

Analysis

IJCS uses a double-blind peer-review system, meaning that the reviewers of the paper will be blind to the identity of the author(s), and the author(s) will be blind to the identity of the reviewer. At initial submission, a manuscript is reviewed by editorial staff for compliance with journal style and to make sure the submission is clear and legible for reviewers and editors. Once the editorial staff have checked in the paper, it is assigned to the Editor-in-Chief, who will assign it to an Associate Editor. The Associate Editor then determines if it should be sent for peer review or if it is not of sufficient priority for JACC. All reviewers and editors are asked to report any potential conflicts of interest, and when those exist the manuscript is reassigned to a different editor or reviewer. The manuscripts are submitted to statistical review, whenever necessary. Once at least to 2 reviews have been completed, the submission is reviewed by the associate editors and Editor-in-chief, who come to one of the five decisions below. Reviewers have 30 days to review the manuscript.

  • Accept: The manuscript is acceptable for publication in its current form. However, minor edits may be made by the medical editors, illustrators, or the publisher, and authors will need to work with the appropriate contacts to ensure these changes are incorporated post-acceptance.
  • Minor Revision: It is important to note that this decision does not guarantee acceptance. However, less significant edits are required than a Revision Required decision. Authors have 30 days to make the changes requested.
  • Major Revision: In this case, more significant edits are required. Authors have 40 days to make the changes requested. It is important to note that this decision does not guarantee acceptance.
  • Reject & Resubmit: The manuscript is unacceptable for publication in its current form. However, the editors are willing to reconsider a thoroughly revised manuscript. The authors must respond to all reviewer and editor comments and the submission will be re-reviewed and treated as a new submission.
  • Reject: The manuscript is unacceptable for publication and/or is not an appropriate fit for IJCS.

Approval

1. Acceptance will be based on originality, significance and scientific contribution to the body of knowledge in the area.

2. The final formatted version (English) will be sent to the author, who must return it within 5 days with minimal spelling adjustments. If the author does not respond in 5 days, these will be considered the final versions for publication.

Publication

After the author’s approval, the versions are sent to indexation, when the DOI and the XML versions for the main indexers are generated. The manuscript will be allocated to a volume and an issue, and published online on the journal website (PDF and HTML).

 

 


 

Publication ethics and publication malpractice statement

 

The International Journal of Cardiovascular Sciences (IJCS) follows the Code of Conduct and Best Practice Guidelines for Journal Editors (Code of Conduct and Best Practice Guidelines for Journal Editor), established by the Committee on Publication Ethics (COPE).

In addition, as a journal that follows the ICMJE (International Committee of Medical Journal Editors)’s Recommendations for the Conduct, Reporting, Editing and Publication of Scholarly Work in Medical Journals, it is expected of authors, reviewers and editors that they follow the best-practice guidelines on ethical behaviour contained therein.

Below is a selection of key points that can be consulted in full by accessing the three documents listed above.

1. Duties of Editors

Fair play and editorial independence

Editors evaluate submitted manuscripts exclusively on the basis of their academic merit (importance, originality, study’s validity, clarity) and its relevance to the journal’s scope, without regard to the authors’ race, gender, sexual orientation, ethnic origin, citizenship, religious belief, political philosophy or institutional affiliation. Decisions to edit and publish are not determined by the policies of governments or any other agencies outside of the journal itself. The Editor-in-Chief has full authority over the entire editorial content of the journal and the timing of publication of that content.

Confidentiality

Editors and editorial staff will not disclose any information about a submitted manuscript to anyone other than the corresponding author, reviewers, potential reviewers, other editorial advisers, and the publisher, as appropriate.

Disclosure and conflicts of interest

Editors and editorial board members will not use unpublished information disclosed in a submitted manuscript for their own research purposes without the authors’ explicit written consent. Privileged information or ideas obtained by editors as a result of handling the manuscript will be kept confidential and not used for their personal advantage. Editors will recuse themselves from considering manuscripts in which they have conflicts of interest resulting from competitive, collaborative, or other relationships/connections with any of the authors, companies or institutions connected to the papers; instead, they will ask another member of the editorial board to handle the manuscript.

Publication decisions

The editors ensure that all submitted manuscripts being considered for publication undergo peer-review by at least two reviewers who are expert in the field. The Editor-in-Chief is responsible for deciding which of the manuscripts submitted to the journal will be published, based on the validation of the work in question, its importance to researchers and readers, the reviewers’ comments, and such legal requirements as are currently in force regarding libel, copyright infringement and plagiarism. The Editor-in-Chief may confer with other editors or reviewers in making this decision.

Involvement and cooperation in investigations

Editors (in conjunction with the publisher and/or society) will take responsive measures when ethical concerns are raised with regard to a submitted manuscript or published paper. Every reported act of unethical publishing behaviour will be looked into, even if it is discovered years after publication. IJCS editors follow the COPE Flowcharts when dealing with cases of suspected misconduct. If, on investigation, the ethical concern is well-founded, a correction, retraction, expression of concern or other note as may be relevant, will be published in the journal.

2. Duties of Reviewers

Contribution to editorial decisions

Peer review assists editors in making editorial decisions and, through editorial communications with authors, may assist authors in improving their manuscripts. Peer review is an essential component of formal scholarly communication and lies at the heart of scientific endeavour. IJCS shares the view of many that all scholars who wish to contribute to the scientific process have an obligation to do a fair share of reviewing.

Promptness

Any invited referee who feels unqualified to review the research reported in a manuscript or knows that its prompt review will be impossible should immediately notify the editors and decline the invitation to review so that alternative reviewers can be contacted.

Confidentiality

Any manuscripts received for review are confidential documents and must be treated as such; they must not be shown to or discussed with others except if authorized by the Editor-in-Chief (who would only do so under exceptional and specific circumstances). This applies also to invited reviewers who decline the review invitation.

Standards of objectivity

Reviews should be conducted objectively and observations formulated clearly with supporting arguments so that authors can use them for improving the manuscript. Personal criticism of the authors is inappropriate.

Acknowledgement of sources

Reviewers should identify relevant published work that has not been cited by the authors. Any statement that is an observation, derivation or argument that has been reported in previous publications should be accompanied by the relevant citation. A reviewer should also notify the editors of any substantial similarity or overlap between the manuscript under consideration and any other manuscript (published or unpublished) of which they have personal knowledge.

Disclosure and conflicts of interest

Any invited referee who has conflicts of interest resulting from competitive, collaborative, or other relationships or connections with any of the authors, companies or institutions connected to the manuscript and the work described therein should immediately notify the editors to declare their conflicts of interest and decline the invitation to review so that alternative reviewers can be contacted.

Unpublished material disclosed in a submitted manuscript must not be used in a reviewer’s own research without the express written consent of the authors. Privileged information or ideas obtained through peer review must be kept confidential and not used for the reviewer’s personal advantage. This applies also to invited reviewers who decline the review invitation.

3. Duties of Authors

Reporting standards

Authors of original research should present an accurate account of the work performed and the results, followed by an objective discussion of the significance of the work. The manuscript should contain sufficient detail and references to permit others to replicate the work. Review articles should be accurate, objective and comprehensive, while viewpoints should be clearly identified as such. Fraudulent or knowingly inaccurate statements constitute unethical behaviour and are unacceptable.

Data access and retention

Authors may be asked to provide the raw data of their study together with the manuscript for editorial review and should be prepared to make the data publicly available if practicable. In any event, authors should ensure accessibility of such data to other competent professionals for at least 10 years after publication (preferably via an institutional or subject-based data repository or other data centre), provided that the confidentiality of the participants can be protected and legal rights concerning proprietary data do not preclude their release.

Originality and plagiarism

Authors should ensure that they have written and submit only entirely original works, and if they have used the work and/or words of others, that this has been appropriately cited. Publications that have been influential in determining the nature of the work reported in the manuscript should also be cited. Plagiarism takes many forms, from "passing off" another's paper as the author's own, to copying or paraphrasing substantial parts of another's paper (without attribution), to claiming results from research conducted by others. Plagiarism in all its forms constitutes unethical publishing behaviour and is unacceptable.

Multiple, duplicate, redundant or concurrent submission/publication

Papers describing essentially the same research should not be published in more than one journal or primary publication. Hence, authors should not submit for consideration a manuscript that has already been published in another journal. Submission of a manuscript concurrently to more than one journal is unethical publishing behaviour and unacceptable.

The publication of some kinds of articles (such as clinical guidelines, translations) in more than one journal is sometimes justifiable, provided that certain conditions are met. The authors and editors of the journals concerned must agree to the secondary publication, which must reflect the same data and interpretation of the primary document. The primary reference must be cited in the secondary publication.

Authorship of the manuscript

Only persons who meet these authorship criteria should be listed as authors in the manuscript as they must be able to take public responsibility for the content: (i) made significant contributions to the conception, design, execution, data acquisition, or analysis/interpretation of the study; and (ii) drafted the manuscript or revised it critically for important intellectual content; and (iii) have seen and approved the final version of the paper and agreed to its submission for publication. All persons who made substantial contributions to the work reported in the manuscript (such as technical help, writing and editing assistance, general support) but who do not meet the criteria for authorship must not be listed as an author, but should be acknowledged in the "Acknowledgements" section after their written permission to be named as been obtained. The corresponding author should ensure that all appropriate coauthors (according to the above definition) and no inappropriate coauthors are included in the author list and verify that all coauthors have seen and approved the final version of the manuscript and agreed to its submission for publication.

Disclosure and conflicts of interest

Authors should – at the earliest stage possible (generally by submitting a disclosure form at the time of submission and including a statement in the manuscript) – disclose any conflicts of interest that might be construed to influence the results or their interpretation in the manuscript. Examples of potential conflicts of interest that should be disclosed include financial ones such as honoraria, educational grants or other funding, participation in speakers’ bureaus, membership, employment, consultancies, stock ownership, or other equity interest, and paid expert testimony or patent-licensing arrangements, as well as non-financial ones such as personal or professional relationships, affiliations, knowledge or beliefs in the subject matter or materials discussed in the manuscript. All sources of financial support for the work should be disclosed (including the grant number or other reference number if any).

Acknowledgement of sources

Authors should ensure that they have properly acknowledged the work of others, and should also cite publications that have been influential in determining the nature of the reported work. Information obtained privately (from conversation, correspondence or discussion with third parties) must not be used or reported without explicit, written permission from the source. Authors should not use information obtained in the course of providing confidential services, such as refereeing manuscripts or grant applications, unless they have obtained the explicit written permission of the author(s) of the work involved in these services.

Hazards and human participants or use of animals

If the work involves chemicals, procedures or equipment that have any unusual hazards inherent in their use, the authors must clearly identify these in the manuscript. If the work involves the use of animals or human participants, the authors should ensure that all procedures were performed in compliance with relevant laws and institutional guidelines and that the appropriate institutional committee(s) has approved them; the manuscript should contain a statement to this effect. Authors should also include a statement in the manuscript that informed consent was obtained for experimentation with human participants. The privacy rights of human participants must always be observed.

Peer review

Authors are obliged to participate in the peer review process and cooperate fully by responding promptly to editors’ requests for raw data, clarifications, and proof of ethics approval, patient consents and copyright permissions. In the case of a first decision of "revisions necessary", authors should respond to the reviewers’ comments systematically, point by point, and in a timely manner, revising and re-submitting their manuscript to the journal by the deadline given.

Fundamental errors in published works

When authors discover significant errors or inaccuracies in their own published work, it is their obligation to promptly notify the journal’s editors or publisher and cooperate with them to either correct the paper in the form of an erratum or to retract the paper. If the editors or publisher learns from a third party that a published work contains a significant error or inaccuracy, then it is the authors’ obligation to promptly correct or retract the paper or provide evidence to the journal editors of the correctness of the paper.

4. Duties of the Publisher

Handling of unethical publishing behaviour

In cases of alleged or proven scientific misconduct, fraudulent publication or plagiarism, the Brazilian Society of Cardiology (Sociedade Brasileira de Cardiologia – SBC), journal's publisher, in close collaboration with the editors, will take all appropriate measures to clarify the situation and to amend the article in question. This includes the prompt publication of an erratum, clarification or, in the most severe case, the retraction of the affected work. The publisher, together with the editors, shall take reasonable steps to identify and prevent the publication of papers where research misconduct has occurred, and under no circumstances encourage such misconduct or knowingly allow such misconduct to take place.

Access to journal content

The SBC is committed to the permanent availability and preservation of scholarly research and ensures accessibility by partnering with organizations and maintaining our own digital archive.

 
Sociedade Brasileira de Cardiologia Avenida Marechal Câmara, 160, sala: 330, Centro, CEP: 20020-907, (21) 3478-2700 - Rio de Janeiro - RJ - Brazil
E-mail: revistaijcs@cardiol.br