Background

Preoperative planning regarding alternatives for metabolic and bariatric surgery is critical. The MBSAQIP calculator currently does not compare between BPD/DS and SADI-S and limits patient-surgeon discussion. The aim of this study was to compare the differences in outcomes between BPD/DS and SADI-S.

Methods

This is a retrospective review of our institutional MBSAQIP registry data evaluating patients after primary BPD/DS and SADI-S for outcomes. Study period was from February 2016 to July 2022.

Results

Our study included 297 patients, 187 BPD/DS and 110 SADI-S. There were no significant differences between preoperative demographics and comorbidities between the cohorts. Preoperative BMI was similar between the BPD/DS and SADI-S cohorts, 51.8 vs. 51.1. Minor complications including 30-day readmission, reintervention, reoperation, and mortality were not significant between the cohorts. Length of stay was longer in BPD/DS compared to SADI-S, 2.1 days vs 1.5 days (p = 0.03). Operative time was longer in the BPD/DS group vs the SADI-S group, 253.4 minutes vs 195.1 minutes (p = < 0.01). There was no significant difference between weight loss or BMI change between the cohorts at one year. There was no significant difference between weight loss or BMI change between the cohorts at one year. BPD/DS had -16.7 BMI points, 47.5 kg loss vs -17.1 BMI points, 50 kg loss for SADI-S (p = 0.67 and 0.36 respectively).

Conclusions

Outcomes of BPD/DS and SADI-S at one year are similar. Future studies are needed to provide further evidence of the similarity in weight loss between the operations.