This video shows the feasibility of laparoscopic ureteral dissection and provides safety rules to perform ureterolysis. Identification and dissection of the ureter should be part of all gynecologic surgeons' background to reduce the risk of complications [1]. Knowledge of anatomy plays a pivotal role, allowing the surgeon to keep the ureter at a distance and minimizing the need for ureterolysis. Unfortunately, the need for ureteral dissection is not always predictable preoperatively, and gynecologic surgeons need to master this technique, especially when approaching more complex procedures such as endometriosis [2]. An implicit risk of damage cannot be denied when performing ureterolysis; therefore, the ureter should be dissected only when strictly necessary and handled with care to minimize the use of energy [3].
Endometriosis is a common benign gynecological disease characterized by the presence of endometrial glands and stroma outside the uterus. It can be defined as endometrioma, superficial peritoneal endometriosis or deep infiltrating endometriosis (DIE) depending on the location and the depth of infiltration of the organs. In 5%–12% of cases, DIE affects the digestive tract, frequently involving the distal part of the sigmoid colon and rectum. Surgery is generally recommended in cases of obstructive symptoms and in cases with pain that is non‐responsive to medical treatment. Selection of the most optimal surgical technique for the treatment of bowel endometriosis must consider different variables, including the number of lesions, eventual multifocal lesions, as well as length, width and grade of infiltration into the bowel wall. Except for some major and widely accepted indications regarding bowel resection, established international guidelines are not clear on when to employ a more conservative approach like rectal shaving or discoid resection, and when, instead, to opt for bowel resection. Damage to the pelvic autonomic nervous system may be avoided by detection of the middle rectal artery, where its relationship with female pelvic nerve fibers allows its use as an anatomical landmark. To reduce the risk of potential vascular and nervous complications related to bowel resection, a less invasive approach such as shaving or discoid resection can be considered as potential treatment options. Additionally, the middle rectal artery can be used as a reference point in cases of upper bowel resection, where a trans mesorectal technique should be preferred to prevent devascularization and denervation of the bowel segments not affected by the disease.
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