Evaluation of Weight Loss Indicators and Laparoscopic One-Anastomosis Gastric Bypass Outcomes

• Published in: Scientific reports Vol. 8; no. 1; pp. 1961 - 6
• Main Authors: Carbajo, Miguel A, Jiménez, Jose M, Luque-de-León, Enrique, Cao, María-José, López, María, García, Sara, Castro, María-José
• Format: Journal Article
• Language: English
• Published: England Nature Publishing Group 31.01.2018; Nature Publishing Group UK; Nature Portfolio
• Subjects: Adolescent; Adult; Anastomosis; Anastomosis, Surgical; Body Mass Index; Body weight; Body weight loss; Female; Gastric Bypass; Humans; Intestine; Laparoscopy; Male; Middle Aged; Obesity; Overweight; Surgery; Surgical outcomes; Treatment Outcome; Weight control; Weight Loss - physiology; Young Adult
• ISSN: 2045-2322; 2045-2322
• DOI: 10.1038/s41598-018-20303-6

Mini-gastric bypass/One-anastomosis gastric bypass (MGB-OAGB) is an effective bariatric technique for treating overweight and obesity, controlling and improving excess-weight-related comorbidities. Our study evaluated OAGB characteristics and resulting weight evolution, plus surgical success criteria based on various excess weight loss indicators. A prospective observational study of 100 patients undergoing OAGB performed by the same surgical team (two-year follow-up). Surgical characteristics were: surgery duration, associated complications, bowel loop length, hospital stay, and weight loss at 6 postoperative points. 100 patients were treated (71 women, 29 men); mean initial age was 42.61 years and mean BMI, 42.61 ± 6.66 kg/m . Mean surgery duration was 97.84 ± 12.54 minutes; biliopancreatic loop length was 274.95 ± 23.69 cm. Average hospital stay was 24 hours in 98% of patients; no surgical complications arose. Weight decreased significantly during follow-up (P < 0.001). Greatest weight loss was observed at 12 months postsurgery (68.56 ± 13.10 kg). Relative weight loss showed significant positive correlation, with greatest weight loss at 12 months and %excess BMI loss > 50% achieved from the 3-month follow-up in 92.46% of patients. OAGB seems to be effective in treating obesity, with short hospital stays. Relative weight loss correlates optimally with absolute outcomes, but both measures should be used to evaluate surgical results.