Journal of Gastrointestinal Surgery

, Volume 14, Issue 2, pp 211–220 | Cite as

Duodenal Switch Provides Superior Resolution of Metabolic Comorbidities Independent of Weight Loss in the Super-obese (BMI ≥ 50 kg/m2) Compared with Gastric Bypass

2009 SSAT Plenary Presentation

Abstract

Objective

Increased body mass index is associated with greater incidence and severity of obesity-related comorbidities and inadequate postbariatric surgery weight loss. Accordingly, comorbidity resolution is an important measure of surgical outcome in super-obese individuals. We previously reported superior weight loss in super-obese patients following duodenal switch (DS) compared to Roux-en-Y gastric bypass (RYGB) in a large single institution series. We now report follow-up comparison of comorbidity resolution and correlation with weight loss.

Methods

Data from patients undergoing DS and RYGB between August 2002 and October 2005 were prospectively collected and used to identify super-obese patients with diabetes, hypertension, dyslipidemia, and gastroesophageal reflux disease (GERD). Ali–Wolfe scoring was used to describe comorbidity severity. Chi-square analysis was used to compare resolution and two-sample t tests used to compare weight loss between patients whose comorbidities resolved and persisted.

Results

Three hundred fifty super-obese patients [DS (n = 198), RYGB (n = 152)] were identified. Incidence and severity of hypertension, dyslipidemia, and GERD was comparable in both groups while diabetes was less common but more severe in the DS group (24.2% vs. 35.5%, Ali–Wolfe 3.27 vs. 2.94, p < 0.05). Diabetes, hypertension, and dyslipidemia resolution was greater at 36 months for DS (diabetes, 100% vs. 60%; hypertension, 68.0% vs. 38.6%; dyslipidemia, 72% vs. 26.3%), while GERD resolution was greater for RYGB (76.9% vs. 48.57%; p < 0.05). There were no differences in weight loss between comorbidity “resolvers” and “persisters”.

Conclusions

In comparison to RYGB, DS provides superior resolution of diabetes, hypertension, and dyslipidemia in the super-obese independent of weight loss.

Keywords

Morbid obesity Super-obesity Comorbidity resolution Duodenal switch Gastric bypass Bariatric surgery Diabetes Gastroesophageal reflux Biliopancreatic diversion 

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Copyright information

© The Society for Surgery of the Alimentary Tract 2009

Authors and Affiliations

  • Vivek N. Prachand
    • 1
  • Marc Ward
    • 2
  • John C. Alverdy
    • 1
  1. 1.Section of General Surgery, Department of SurgeryUniversity of Chicago Medical CenterChicagoUSA
  2. 2.Pritzker School of MedicineUniversity of ChicagoChicagoUSA

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