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Updated: Jun 12, 2025

One-anastomosis Gastric Bypass OAGB in Rats
Published on: November 10, 2018
Bikini line one-anastomosis gastric bypass (BLOGB): initial report
Tamer N Abdelbaki1, Yomna E Dean2
1General Surgery Department, Faculty of Medicine, Alexandria University, 11 Hussein Nouh St, Shalalat, Bab Sharki, Alexandria, Egypt. tamerbaki@hotmail.com.
Background:
This study introduces a new access method for one-anastomosis gastric bypass (OAGB) by placing ports at the bikini line.
Objective:
To describe our initial experience and assess the feasibility, safety, and effectiveness of this novel access.
Setting:
University Hospital.
Methods:
This prospective case-control study included 72 patients: 42 were allocated to the bikini line one-anastomosis gastric bypass (BLOGB) group, and 30 were assigned to the control group. Exclusion criteria included a history of major abdominal surgery, hiatal hernia, extensive lower abdominal adhesions, or a body mass index (BMI) exceeding 55 kg/m2.
Results:
The mean preoperative BMI of the study sample was 40.01 ± 2.84. Weight loss was satisfactory, with the highest percent excess weight loss (%EWL) observed at 12 months: 90.88 ± 7.90 and 91 ± 7.11 (p = 0.474) in both groups, respectively. Both groups showed no significant differences in operative complications, hospital stay, weight loss, or resolution of obesity-associated diseases. However, the BLOGB patients had a longer mean operative time of 110.71 ± 17.72 min compared to 98 ± 18.27 min in the control group (p = 0.002). Moreover, they experienced less postoperative pain and reported greater satisfaction with the appearance of their scars.
Conclusion:
BLOGB was found to be potentially feasible, safe, and effective, offering improved aesthetic outcomes and reduced postoperative pain. This approach may be suitable for a select group of patients concerned with scar appearance. However, large-scale studies are necessary to ensure that safety is not compromised in pursuit of aesthetic benefits.

