Background: Insufficient weight loss after primary laparoscopic sleeve gastrectomy (LSG) occasionally requires revisional surgery. A few single-institution studies have examined the safety of redo LSG (RSG) and have shown mixed results.
Objectives: The aim of this study was to evaluate the safety of RSG compared with LSG over a period of 30 days.
Setting: University of Southern California, United States; Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) database.
Methods: The 2020-2021 MBSAQIP registry was used to evaluate patients who underwent RSG. Thirty-day outcomes were evaluated using univariable analysis and multivariable logistic and linear regression.
Results: A total of 226,029 patients were reviewed, of whom 1454 (.7%) underwent RSG and 224,575 (99.3%) underwent initial LSG. Patients who underwent RSG were older (45 versus 42 yr), predominantly female (86.2% versus 81.3%), had a lower body mass index (40.0 versus 43.4), fewer co-morbidities, and greater rates of gastroesophageal reflux (38.7% versus 25.1%). They demonstrated increased overall complications (3.6% versus 2.1%, P < .001) and a longer operative time (81 versus 62 min, P < .001), but there was no difference in mortality. On multivariable analysis, patients who underwent RSG were independently associated with an increased risk of overall postoperative complications (odds ratio [OR]: 1.493, P = .018), organ space infection (OR: 6.231, P < .001), staple line leak (OR: 12.838, P < .001), pneumonia (OR: 3.85, P = .013), ventilator requirement over 48 hours (OR: 6.404, P = .035), sepsis (OR: 4.397, P = .010), septic shock (OR: 8.669, P < .001), reoperation (OR: 1.808, P = .013), readmission (OR: 2.104, P < .001), reintervention (OR: 4.435, P < .001), and longer operative times (β = 12.790, P < .001).
Conclusions: In this national database study, RSG was associated with increased rates of postoperative complications and a longer operative time. Although these results are concerning, further studies are required to examine long-term outcomes.
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