(HealthDay News) – For morbidly obese patients with type 2 diabetes, bariatric surgery is more efficacious than conventional medical treatment, leading to improvement or remission of diabetes and associated comorbidities.

Frida Leonetti, MD, PhD, of the University of Rome, and colleagues compared the outcomes for 30 morbidly obese patients with type 2 diabetes who underwent sleeve gastrectomy and 30 who were treated with conventional therapy. The participants’ diabetes status and other comorbidities were assessed every three months for 18 months.

In the sleeve gastrectomy group, the researchers found that, for 80% of patients, diabetes was resolved. In addition, the prevalence of obstructive sleep apnea syndrome decreased from 50 to 10%, and patients significantly decreased their use of medication for hypertension and dyslipidemia. In the conventional therapy group, all patients still had diabetes and maintained or increased their level of hypoglycemic therapy. The prevalence of sleep apnea syndrome did not change; and they increased their usage of medications for hypertension and dyslipidemia.

“This study confirms the efficacy of sleeve gastrectomy in the treatment of morbidly obese type 2 diabetic patients when compared with conventional medical treatment,” the authors write.

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