Small Intestine Length Measurement Using 3D CT and Pre-marked Laparoscopic Graspers Comparing Methods in Revisional Bariatric Surgery

What this Trial Is About

Measuring the length of the small intestine during hypo-absorptive surgeries such as Roux-en-Y gastric bypass and Single Anastomosis Duodeno-ileal Sleeve is debated because it carries a high risk of intestinal injury. Some surgeons, especially in revisional surgeries, prefer to measure the entire bowel length to prevent very short segments and severe malnutrition afterward. Using 3D reconstructed CT scans may help measure bowel length safely, but the accuracy of these measurements can be uncertain. This study compares two methods of measuring small intestine length in patients undergoing revisional bariatric surgery. One method involves using 3D CT volumetry to estimate bowel length non-invasively before surgery. The other method uses pre-marked laparoscopic graspers during the operation to directly measure the bowel in 5-cm segments for a more precise in vivo assessment. Participants will undergo preoperative CT scans for bowel measurement and then have their small intestine length measured during surgery using marked laparoscopic graspers. Researchers will compare the accuracy of these two measurement methods over about six months. The study includes patients aged 16 to 70 years who are candidates for revisional bariatric surgery and consent to participate, with safety monitored by avoiding patients with severe adhesions or those refusing CT scans.

Small Intestine Length Measurement Using 3D CT Volumetry and in Vivo Measurement Using Pre-marked Graspers in Revisional Bariatric Surgeries. A Comparative Study