Zusammenfassung
Die extra-levatorische abdomino-perineale Rektumexstirpation (ELAPE) stellt ein Operationsverfahren dar, welches eine Lösung für die enttäuschenden Ergebnisse der konventionellen abdomino-perinealen Rektumexstirpation (APE) in Bezug auf die Rate an unbeabsichtigten Rektumperforationen, positiven zirkumferentiellen Resektionsrändern (CRM) und Lokalrezidiven bietet. Das wichtigste Prinzip dieser Operation ist es, die Präparationsebene von der Risikozone für Perforationen und positiven CRM, dem anorektalen Übergang, nach außen zu verschieben. Erreicht wird dies durch die Resektion des M. levator ani, dessen Außenseite die Präparation bis nah an seinen Ursprung heran folgt. Im anterioren Resektionsgebiet kann präzise durch den komfortablen Zugang mittels Klappmesserposition operiert werden. Alle diese Maßnahmen sind darauf gerichtet, eine Taille im Bereich des anorektalen Überganges zu vermeiden. In diesem Beitrag wird das Verfahren inklusive Strategien zum Verschluss des resultierenden Defektes detailliert beschrieben. In einem kurzen Literaturüberblick werden die Resultate der ELAPE diskutiert.
Zusammenfassung. Die perineale Phase der ELAPE ist hochstandardisiert und kann Schritt-für-Schritt vermittelt werden. Durch die ELAPE werden die Raten an unbeabsichtigter Rektumperforation, positivem CRM und Lokalrezidiven beim Rektumkarzinom verringert.
Abstract
Extralevator abdominoperineal excision (ELAPE) has been introduced to alleviate the disappointing results of conventional abdominoperineal excision (APE) with respect to inadvertent bowel perforation, positive circumferential resection margins (CRM), and local recurrence rates. The main principle of this operation is to shift the resection plane away from the anorectal junction, which is the area at highest risk of perforation and CRM positivity. This is accomplished by resection of the levator ani muscle, which is followed at its outer surface close to its origin at the pelvic side wall. The anterior region is also addressed with comfortable access to the dissection area by placement of the patient in prone jackknife position. All measures aim to avoid a waist at the anorectal junction. This article describes the procedure in detail, including strategies to close the perineal defect. In a brief review of the literature, the favorable results of ELAPE are discussed.
Conclusion. It can be concluded that the perineal phase of ELAPE is highly standardized and can be taught in a step-by-step fashion. There is evidence that ELAPE results in lower rates of inadvertent bowel perforations, lower rates of positive CRM, and lower rates of local recurrence.
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Stelzner, S., Holm, T. Extralevatorische abdominoperineale Exstirpation (ELAPE). coloproctology 43 (Suppl 1), 1–10 (2021). https://doi.org/10.1007/s00053-019-00422-y
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DOI: https://doi.org/10.1007/s00053-019-00422-y