Risk Factors for Readmission and Reoperation in Patients Undergoing Bariatric Surgery: A Retrospective Observational Study

Abstract

Background: Bariatric surgery is a common and effective treatment for morbid obesity, offering substantial weight loss and improvement in obesity-related comorbidities. However, postoperative readmissions and reoperations remain significant concerns. This study aims to identify risk factors associated with readmission and reoperation in patients undergoing bariatric surgery.
Methods: A retrospective observational study was conducted on 500 patients who underwent bariatric surgery between January 2020 and December 2022. Demographic, clinical, and surgical data were analyzed to evaluate predictors of postoperative readmission and reoperation within 90 days.
Results: The overall readmission rate was 12%, and the reoperation rate was 8%. Risk factors for readmission included age >50 years, preoperative diabetes (p<0.01), and operative time >150 minutes (p<0.05). Risk factors for reoperation were advanced BMI (>50 kg/m², p<0.01), presence of preoperative obstructive sleep apnea (p<0.05), and postoperative anastomotic leaks (p<0.001).
Conclusion: Advanced age, severe obesity, and specific comorbidities significantly increase the risk of readmission and reoperation after bariatric surgery. Enhanced perioperative care and targeted interventions may reduce these complications