Abstract
Endoscopic para-aortic lymphadenectomy (PALN) is a crucial step in the management of gynecological cancers. However, some concerns exist on the completeness of PALN according to the route (transperitoneal vs. extraperitoneal single-port or multiport). We compared these three surgical techniques using a propensity score. We retrospectively reviewed all patients undergoing an endoscopic PALN for a gynecological cancer from May 2010 to Mars 2015. Fifty-one patients had a single-port extraperitoneal PALN, 16 a multiport extraperitoneal PALN and 62 a transperitoneal PALN. Factors independently related to technique performances were tested on a multivariate model adjusted for a propensity score. The number of lymph nodes removed by transperitoneal route was 15 and extraperitoneal route single and multiport was 12. After adjustment for the propensity score of undergoing the extraperitoneal approach, no difference in the number of lymph node removed was noted (P=0.17). There was more lymphocyst after transperitoneal (17%) and multiport extraperitoneal PALN (19%) than after extraperitoneal PALN (2%) (P=0.04). Success rate of single-port extraperitoneal PALN was 94% (n=48). Four patients required a conversion to an open route due to vascular injury. Using a propensity score, single-port extraperitoneal route offers similar efficacy to perform PALN than transperitoneal or multiport extraperitoneal route but with less lymphocysts.
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