Norbert Runkel1, Harald Reiser. 1. Department of General Surgery, Schwarzwald-Baar-Klinikum, Teaching Hospital of the University of Freiburg, Vöhrenbacher Str. 25, 78050, Villingen-Schwenningen, Germany, avc@sbk-vs.de.
Abstract
PURPOSE: We have developed nerve-oriented mesorectal excision (NOME) as a novel concept in rectal cancer surgery by which autonomic pelvic nerves serve as landmarks for a standardized navigation along fascial planes. This article describes the technique step by step and presents our results from 2008 to 2012. MATERIAL AND METHODS: The key steps are: preparation of the splanchnic nerves at the mid-posterior sidewall, the hypogastric nerves at the upper sidewall, and the urogenital nerve branches (Walsh) at the caudal-anterior sidewall. The dissection of the lateral ligament is strictly performed as the last step. NOME was applied in 274 consecutive mesorectal excisions (partial 20.4%, total 79.6%); a subgroup of 42 male patients underwent a questionnaire-based interview on sexual activity. RESULTS: The conversion rate was 0.7%. High (complete) specimen quality and circumferential margin negativity were achieved in 90.1% and 95.3%, respectively. Anastomotic leaks occurred in 13 (4.7%) patients. Mortality was 1.8%. The frequency of prolonged urinary catheter was 1.8%. Of 22 sexually active males interviewed, 18 (81.8%) maintained activity postoperatively. CONCLUSIONS: NOME achieves high-quality mesorectal specimens and a high rate of preservation of autonomic nerve function. The concept of using nerves as laparoscopic landmarks may help to standardize and master laparoscopic rectal cancer surgery.
PURPOSE: We have developed nerve-oriented mesorectal excision (NOME) as a novel concept in rectal cancer surgery by which autonomic pelvic nerves serve as landmarks for a standardized navigation along fascial planes. This article describes the technique step by step and presents our results from 2008 to 2012. MATERIAL AND METHODS: The key steps are: preparation of the splanchnic nerves at the mid-posterior sidewall, the hypogastric nerves at the upper sidewall, and the urogenital nerve branches (Walsh) at the caudal-anterior sidewall. The dissection of the lateral ligament is strictly performed as the last step. NOME was applied in 274 consecutive mesorectal excisions (partial 20.4%, total 79.6%); a subgroup of 42 male patients underwent a questionnaire-based interview on sexual activity. RESULTS: The conversion rate was 0.7%. High (complete) specimen quality and circumferential margin negativity were achieved in 90.1% and 95.3%, respectively. Anastomotic leaks occurred in 13 (4.7%) patients. Mortality was 1.8%. The frequency of prolonged urinary catheter was 1.8%. Of 22 sexually active males interviewed, 18 (81.8%) maintained activity postoperatively. CONCLUSIONS: NOME achieves high-quality mesorectal specimens and a high rate of preservation of autonomic nerve function. The concept of using nerves as laparoscopic landmarks may help to standardize and master laparoscopic rectal cancer surgery.
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