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Effect of BAriatric Surgery Versus Optimal Medical Therapy on Cardiovascular Health and Atherosclerosis in Obese, Type II Diabetic Patients

Not Applicable
Conditions
Obesity
Diabetes Mellitus, Type 2
Atherosclerosis
Interventions
Procedure: Gastric bypass
Behavioral: Medical therapy
Registration Number
NCT02331420
Lead Sponsor
Catholic University of the Sacred Heart
Brief Summary

To assess the impact of weight loss due to bariatric surgery, as compared to the effect of optimal medical therapy alone on endothelial function, subclinical atherosclerosis, cardiovascular autonomic function in obese patient affected by type 2 diabetes.The study consists in a 2-arm randomized trial, in which patients will be randomly assigned to bariatric surgery or optimal medical therapy. Each patient will be studied at baseline (T0) and 12 months thereafter (T1).

Detailed Description

Not available

Recruitment & Eligibility

Status
UNKNOWN
Sex
All
Target Recruitment
58
Inclusion Criteria
  • type 2 diabetes: the American Diabetes Association (ADA) recommends the following criteria for diagnosis of diabetes: HbA1c ≥6.5% OR fasting plasma glucose‡ ≥126 mg/dL (7.0 mmol/L) OR 2-hour plasma glucose ≥200 mg/dL (11.1 mmol/L) during an oral glucose tolerance test; 75-g glucose load should be used OR random plasma glucose concentration ≥200 mg/dL (11.1 mmol/L) in persons with symptoms of hyperglycemia or hyperglycemic crisis;
  • indication to bariatric surgery: BMI ≥35 kg/m2 and one or more obesity related co-morbidities, including Type 2 Diabetes Mellitus.
Exclusion Criteria
  • overt cardiovascular disease (as assessed by clinical evaluation, physical examination, 12-lead ECG, 2D-echocardiogram);
  • smoking habit;
  • associated medical conditions, as chronic kidney disease (defined as creatinine clearance <60 mL/min/L.73m2), liver cirrhosis, malignancies, chronic congestive heart failure, acute or chronic inflammatory disease;
  • specific contraindication to bariatric surgery;
  • pregnancy;
  • medical conditions requiring acute hospitalization;
  • psychological conditions which may hamper patient's cooperation;
  • geographic inaccessibility.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Bariatric SurgeryGastric bypassGastric bypass
Optimal Medical TherapyMedical therapyplanned visits, optimized hypoglycemic treatment, diet and lifestyle modification
Primary Outcome Measures
NameTimeMethod
Subclinical Atherosclerosis (ecographic assessment of carotid artery intima-media thickness)12 months

ecographic assessment of carotid artery intima-media thickness

Endothelial Function (ecographic assessment of flow-mediated dilation and nitrate mediated dilation)12 months

ecographic assessment of flow-mediated dilation and nitrate mediated dilation

Cardiac autonomic function (heart rate variability measurements on 24-hour Holter ECG recordings)12 months

heart rate variability measurements on 24-hour Holter ECG recordings

Secondary Outcome Measures
NameTimeMethod
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