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Sphincter-saving extrasphincteric rectal dissection and proximal segmental sphincteric excision techniques by using combined abdominal and transvaginal anterior perineal access in female patients who have lower rectal cancer (Transvaginal low anterior rectal resection)

Técnicas de dıssecção retal extra-esfincteriana e de excisão esfincteriana segmentar proximal com preservação de esfíncter com o uso de acesso abdominal e perineal anterior transvaginal combinado em mulheres portadoras de câncer retal baixo (Ressecção anterior do reto baixa por via transvaginal)

ABSTRACT

Background:

Combined abdominal and transvaginal anterior perineal approaches have been used as an alternative surgical method for the surgical treatment of the lower rectal cancer. The main aim of this paper is to describe the surgical stages of the combined abdominal and transvaginal approaches performed for lower rectal cancer, especially in transvaginal anterior perineal stage.

Method:

We have performed sphincter-saving surgical operations by using transvaginal anterior perineal access by combining with the abdominal access in four female patients who had lower rectal cancer.

Results:

Sphincter-saving extrasphincteric dissection and proximal segmental sphincteric excision techniques were performed in four female patients operated with combined abdominal and transvaginal anterior perineal approach. All patients were found to have continence. Postoperatively, one patient was converted to abdominoperineal rectal amputation due to the detected distal resection margin positivity.

Conclusion:

Transvaginal anterior perineal access provides the extrasphincteric rectal dissection possibility in the ischioanal fossa. Therefore, the combined abdominal and transvaginal anterior perineal approaches have been based on the different anatomical and surgical features when compared to intersphincteric dissection technique which is the most common used surgical procedure in lower rectal cancer surgery.

Keywords:
Lower rectal cancer; Sphincter-saving surgery; Combined abdominal and perineal approach

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