Background

SADI offers promising results for populations with obesity as initial bariatric procedure or as revision for weight loss failure after sleeve gastrectomy. We measured total bowel length (TBL) in our SADI patients with a 300-350cm common channel, to determine percentage of bowel being bypassed.

Methods

This is a retrospective study of SADI procedures at our institution, November 2019 to September 2023. Using linear R2 coefficients, we assessed correlation between total bowel length bypassed (BLB) and percent excess weight lost (EWL). Analysis was conducted to determine if patients achieved greater EWL following SADI-S vs. conversion to SADI.

Results

54 patients were included. 38 patients' TBL was measured to determine the BLB. Percentage of total BLB ranged from 25 to 63.4%. The linear R2 coefficients for correlation between BLB and EWL at 1, 3, 6, and 12 months, was 0.066, 0.032, 0.029, and 0.012, respectively. Patients who underwent primary SADI-S versus conversion to SADI did not achieve greater EWL at 1 and 3 months post-operatively, but did at 6 and 12 months (Table 1).

Conclusions

From our analysis, we did not observe a correlation between BLB and EWL for patients undergoing the SADI(S). While patients who underwent primary SADI-S achieved greater EWL, SADI-S conversion was an effective revision option to achieve additional weight loss.