Nerve Anatomy Around Lumbo-aortic Lymphadenectomy by Retroperitoneal Approach

To describe the anatomy of the nerves during a laparoscopic retroperitoneal para-aortic lymphadenectomy with prioritization of their preservation.

Demonstration of a nerve-preserving para-aortic lymphadenectomy.

A 65-year-old woman with no significant medical history underwent diagnostic laparoscopy for evaluation of a right ovarian mass. In the absence of peritoneal carcinomatosis, bilateral adnexectomy wasperformed with pathology revealing a high-grade tubo-ovarian serous carcinoma. In accordance with French Guidelines for management of ovarian cancer, operative staging including pelvic and para-aortic lymphadenectomy was recommended [1]. Final pathology following staging surgery was consistent with stage IA high-grade serous ovarian cancer prompting administration of adjuvant chemotherapy postoperatively.

We performed a lumbo-aortic lymphadenectomy with preservation of the following nerves: the superior hypogastric plexus, the lumbar splanchnic nerves and the sympathetic trunk.

Although there are conflicting data as to the benefit of staging lymphadenectomy in women with presumed early stage high-grade serous ovarian cancer, current French Guidelines recommend its performance. When doing so, effort should be made to avoid injury to adjacent normal structures, and in doing so, minimize potential morbidity. The neural structures preserved in this case are part of the sympathetic contingent and participate in the innervation of the abdomen and pelvic viscera. The sympathetic contingent is responsible for the vasomotricity but is also involved in the contraction of the internal genitalia during orgasm and in the inhibition of the peristaltic contractions of the rectum. As such, its preservation may avoid certain postoperative complaints. When possible to do so without compromising essential elements of a cancer surgery, preservation of nerves should be considered.