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Lateral Pelvic Lymph Node Dissection for Rectal Neuroendocrine Neoplasms Undergoing Laparoscopic Total Mesenteric Excision
Sponsor: National Cancer Center, China
Summary
The purpose of this study is to investigate the metastatic status of lateral pelvic lymph nodes in rectal neuroendocrine neoplasms (rNENs) undergoing laparoscopic total mesenteric excision (TME). The hypothesis is that the rate of lateral lymph node metastasis is underestimated in rNENs undergoing TME, necessitating concurrent lateral Pelvic lymph node dissection.
Key Details
Gender
All
Age Range
18 Years - 75 Years
Study Type
INTERVENTIONAL
Enrollment
30
Start Date
2022-08-01
Completion Date
2028-08-01
Last Updated
2024-02-28
Healthy Volunteers
No
Conditions
Interventions
lateral pelvic lymph node dissection
Following the total mesorectal excision principle, the rectum and mesentery are removed, with careful protection of the pelvic autonomic nerves. After completing laparoscopic rectal resection, lateral lymph node dissection is performed. The lateral dissection follows these steps: ① Open the peritoneum at the bifurcation of the iliac vessels, dissect along the retroperitoneum adjacent to the ureter-bladder fascia, expose the lateral pelvic area, and carefully protect the ureter and hypogastric nerves. Open the peritoneum along the edge of the external iliac vessels close to the inguinal ligament, clear the lymphatic fatty tissue alongside the external iliac vessels along the edge of the iliopsoas and internal oblique muscles; ② After identifying the hypogastric nerve, dissect along the bladder-bladder fascia, separate the bladder and the fat tissue around the lateral pelvic space, completely remove the lymphatic tissue around the internal iliac vessels and hypogastric nerves.
Locations (1)
National Cancer Center
Beijing, Beijing Municipality, China