Laparoscopic one anastomosis gastric bypass: a revisional procedure for failed open vertical banded gastroplasty in treatment of morbid obesity: a prospective study

Background
The main indications for revision of bariatric surgery are inadequate weight loss, weight regain, or complications, so laparoscopic one anastomosis gastric bypass (LOAGB) is a promising bariatric procedure used as a revisional procedure for failed open vertical banded gastroplasty (VBG).
Aim
The aim was to evaluate LOAGB as a revisional bariatric procedure for failed open VBG regarding technical feasibility, weight loss, improvement in comorbidities, and complications.
Patients and methods
This prospective cohort study was carried out at the Gastrointestinal and Laparoscopic Surgery Unit, General Surgery Department, Tanta University, between October 2017 and October 2018. It included 20 patients who underwent LOAGB as a revisional bariatric procedure for failed open VBG.
Results
The study population included 17 females and three males, with a mean age of 38.25±5.36 years. The mean preoperative BMI was 48.15±4.35 kg/m. The mean operative time was 145.36±25.19 min, and the mean postoperative hospital stay was 3.12 days. Neither conversion to open technique or to other bariatric procedures nor mortality occurred. Early complications were encountered in 3 patients (15%). Late complications included four (20%) patients. Severe biliary gastritis occurred in one (5%) patient, who was managed by side-to-side jejunojejunostomy. The mean postoperative excess body weight loss percent (EBWL%) achieved was 47.14±15.24 at 1 year and 60.85±12.17 at 2 years. The mean BMI achieved was 32.72±5.46 at 1 year and 28.14±4.45 at 2 years.
Conclusion
LOAGB surgery as a revisional procedure for failed open VBG is an effective bariatric surgical procedure producing significant weight loss and resolution or improvement of comorbidities with low perioperative complications.