A cross-sectional survey of patients attending follow-up visits after sleeve gastrectomy: Factors affecting weight loss.

Background: Bariatric surgery offers long-term weight loss and maintenance for patients with obesity. Several factors may be associated with patients' inability to achieve successful excess weight loss (EWL) after the surgery. The purpose of this study was to identify factors associated with improved or in-progress EWL among patients who had undergone laparoscopic sleeve gastrectomy (LSG). Methods: This original clinical investigation was conducted at the Outpatient Surgical Department-Medical Research Institute Hospital at Alexandria University in Egypt. A sample size of 100 adult surgical patients who had undergone LSG was selected from patients who attended follow-up in the study setting. Group A had an EWL% ≥50 and group B had an EWL <50. Body Mass Index (BMI) classes were defined as 25-30 kg/m Results: Post-operatively, after six months, 100% of the patients in group A had a BMI between 25 and 30 mg/m2, compared to 0% in group B. Nevertheless, patients in group EWL<50 (group B) who had pre-operatively BMI class ≥45 mg/m2, had a reduction in weight of 89.5% post-operatively, (n = 2 still had a BMI >45 kg/m Conclusion: Routine cross-sectional surveying can help clinicians in understanding patients' post-operative follow-up routines. Special attention to pre-operative BMI, weight-loss regimens, and childhood-onset as well as post-operative duration, low responders, and compliance with clinical assessment can improve weight loss outcomes.