June 23, 2026
Leslie ZD, Bazerbachi F, Dirweesh A, Shankar S, et al. Target Trial Emulation of 6-Month Weight Change after Endoscopic Sleeve Gastroplasty and Sleeve Gastrectomy: A Retrospective Cohort Study. J Am Coll Surg. June 2026.
Endoscopic sleeve gastroplasty (ESG) offers a less invasive alternative to sleeve gastrectomy (SG) while preserving gastric anatomy; however, comparative effectiveness data from large real-world cohorts remain limited. Using the 2023 Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) follow-up file, Leslie and colleagues compared short-term weight loss and clinical outcomes after ESG and SG.
ESG and SG cases were identified from the 2023 MBSAQIP follow-up file. Using target trial emulation methodology, patients underwent 1:8 nearest-neighbor matching on age, sex, race, diabetes, hypertension, cardiovascular comorbidity, and highest preoperative body mass index. The primary outcome was percent weight change (%WC) from highest preoperative weight to 6 months. The primary analysis used inverse probability of censoring weighting regression to account for missing 6-month weights. Secondary outcomes included 30-day adverse events and 6-month comorbidity and laboratory outcomes.
The matched cohort included 3,753 patients (ESG, 417; SG, 3,336). At 6 months, SG achieved greater weight loss than ESG (−18.51% ± 7.98 versus −12.33% ± 6.96; p<0.001). In inverse probability of censoring weighting regression, SG remained associated with greater %WC (ESG coefficient +7.40; 95% CI, 6.59–8.21). Absolute adverse-event rates were low in both groups. SG demonstrated more favorable comorbidity outcomes, whereas ESG was associated with higher 30-day and 6-month readmission (3.8% versus 1.6%) and reoperation (1.0% versus 0.3%) rates.
Although ESG produced clinically meaningful weight reduction and low absolute adverse-event rates, its higher readmission and reoperation rates should be considered during procedure selection and patient counseling.