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Updated: Mar 26, 2026

A Murine Model of Vertical Sleeve Gastrectomy
Published on: December 18, 2017
Severe Insulin Resistance Improves Immediately After Sleeve Gastrectomy
Rahul Sharma1, Chandra Hassan2, Joumana T Chaiban1
1Case Western Reserve University, Cleveland, OH, USA; St Vincent Charity Medical Center, Cleveland, OH, USA.
Sleeve gastrectomy dramatically improved severe insulin resistance in an obese patient with type 2 diabetes. This bariatric surgery led to a significant reduction in insulin needs and improved HOMA-IR scores shortly after the procedure.
Area of Science:
- Metabolic Surgery
- Endocrinology
- Bariatric Surgery
Background:
- Obesity is linked to insulin resistance and adverse health outcomes.
- Bariatric surgery shows superior results for insulin resistance and glycemic control compared to medical therapy.
- Severe insulin resistance poses significant health challenges.
Purpose of the Study:
- To report a case of drastic improvement in severe insulin resistance after sleeve gastrectomy.
- To illustrate the rapid impact of sleeve gastrectomy on insulin sensitivity.
Main Methods:
- A case report of a morbidly obese patient with type 2 diabetes and severe insulin resistance.
- Utilized the Homeostasis Model Assessment of insulin resistance (HOMA-IR) to quantify insulin resistance.
- Documented changes in insulin requirements and HOMA-IR before and after sleeve gastrectomy.
Main Results:
- The patient experienced a 76% improvement in HOMA-IR between postoperative days 1 and 14.
- Insulin therapy was discontinued on postoperative day 1.
- Significant weight loss was achieved during a 6-month pre-operative medical weight management program.
Conclusions:
- Sleeve gastrectomy can lead to rapid and substantial improvements in severe insulin resistance.
- Early postoperative assessment reveals significant metabolic benefits of sleeve gastrectomy.
- Bariatric surgery offers a potent intervention for managing insulin resistance in obese patients.
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