Gastric Bypass Versus Sleeve Gastrectomy: Comparison of Patient Outcomes, Satisfaction, and Quality of Life in a Single-Center Experience

Background: Laparoscopic sleeve gastrectomy (LSG) is the most common primary bariatric operation performed in the United States. Its relative technical ease, combined with a decreased risk for anatomic and malabsorptive complications make LSG an attractive option compared to laparoscopic gastric bypass (LGB) for many patients and surgeons. However, emerging evidence for progressive gastroesophageal reflux disease (GERD) after LSG, and the inferior weight loss in many studies, suggests that the enthusiasm for LSG requires reassessment. We hypothesized that patient satisfaction and quality of life (QoL) may be lower after LSG compared to LGB because of these differences. Methods: We distributed a survey querying weight-loss outcomes, complications, foregut symptoms, QoL, and overall satisfaction to patients who underwent bariatric operations at our institution between 2000 and 2020 and who had electronic mail contact information available. Mean follow-up was 2.75 ± 2.41 years for LGB patients and 3.37 ± 2.18 ( P = .021) years for LSG patients. We compared these groups for weight-loss outcomes, changes in foregut symptoms, gastrointestinal QoL, postbariatric QoL, and overall satisfaction using appropriate statistical tests. Results: Among 323 respondents, 126 underwent LGB and 197 underwent LSG. LGB patients had larger body mass index (BMI) reduction than LSG patients (−17.16 ± 9.07 kg/m 2 versus −14.87 ± 7.4 kg/m 2 , P = .023). LGB patients reported less reflux ( P = .003), with decreased heartburn ( P