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Establishing a New Technique of Laparoscopic Pelvic and Para-Aortic Lymphadenectomy

From the Department of Gynecology, Friedrich-Schiller University, Jena, Germany.

Address reprint requests to: Achim Schneider, MD, MPH Department of Gynecology Friedrich Schiller University Bachstr. 18 07740 Jena Germany E-mail: aschneider{at}bach.med.uni-jena.de

Objective: To assess the number of operations necessary to develop and standardize a laparoscopic approach to pelvic and para-aortic lymphadenectomy, with radicality and number of complications as quality markers.

Methods: Over 4 years, 108 women had complete laparoscopic pelvic and para-aortic lymphadenectomies combined with laparoscopy-assisted radical vaginal hysterectomies for primary therapy of cervical cancer. Complete data and videotapes were available for 99 women. Operating time and radicality for specific anatomic subareas were measured by review of video documentation and histologic lymph node counts. Intra- and postoperative complications were recorded prospectively. To analyze the progress of surgery, we compared two groups of women, one operated on at the beginning of our study (early group, subjects 6–35) and one operated on in the final period of the study (late group, subjects 79–108).

Results: The operating time for pelvic and para-aortic lymphadenectomy increased constantly. Comparing the early and late groups for para-aortic lymphadenectomy, there was an increase in mean operating time (34.8 versus 73.2 minutes; P < .001) and mean histologic lymph node yield (5.1 versus 10.6; P < .001). For pelvic lymphadenectomy, mean operating time increased slightly (60.7 versus 69.7 minutes; not significant) but mean histologic lymph node count decreased over time (24.3 versus 21.0; not significant). Retrospective evaluation of videotapes showed that the radicality of lymphadenectomy improved continuously in all evaluated subareas.

Conclusion: Establishment of a protocol for para-aortic and pelvic lymphadenectomy took 100 operations. Video documentation was a more reliable indicator of progress in technical performance than were histologic lymph node counts.

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