Bariatric Atrial Restoration of Sinus


The purpose of this study is to determine whether bariatric surgery followed by Atrial Fibrillation (AF) catheter ablation is superior to AF catheter ablation alone in the management of AF in patients with morbid obesity.


  • Symptomatic persistent or paroxysmal AF refractory to at least one antiarrhythmic agent
  • >18 years or age < 70
  • EF > 40%
  • BMI > 40 kg/m2
  • OR BMI > 35 kg/m2 and at least one of the following co-morbidities:
    • Type 2 Diabetes Mellitus (by American Diabetes Association diagnostic criteria).
    • Hypertension
    • Hyperlipidemia
    • Obesity-induced cardiomyopathy.
    • Clinically significant obstructive sleep apnea.
    • Obesity-related hypoventilation.
    • Pseudotumor cerebri (documented idiopathic intracerebral hypertension).
    • Severe arthropathy of spine and/or weight-bearing joints (when obesity prohibits appropriate surgical management of joint dysfunction treatable but for the obesity).
    • Hepatic steatosis without evidence of active inflammation.
    • Hypertriglycerdemia
    • Polycystic Ovary Syndrome (PCOS)
    • Asthma
    • Coronary Artery Disease (CAD)