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AB15-01: The risk of atrial fibrillation after bariatric surgery in patients with morbid obesity with and without obstructive sleep apnea
Heart Rhythm
  • Ahmed Dalmar, Aurora Research Institute, Aurora Health Care
  • Maharaj Singh, Aurora Research Institute, Aurora Health Care
  • Zoe Heis, Aurora Health Care
  • Mahek Mirza, Aurora Health Care
  • Indrajit Choudhuri, Aurora Cardiovascular Services, Aurora Sinai/Aurora St. Luke’s Medical Centers, University of Wisconsin School of Medicine and Public Health
  • Atul Bhatia, Aurora Cardiovascular Services, Aurora Health Care; University of Wisconsin School of Medicine and Public Health
  • M. Eyman Mortada, Aurora Cardiovascular Services, Aurora Sinai/Aurora St. Luke’s Medical Centers, University of Wisconsin School of Medicine and Public Health
  • Imran Niazi, Aurora Health Care
  • Vikram Nangia, Aurora Health Care
  • Thomas Chua, Aurora Health Care
  • A. Jamil Tajik, Aurora Cardiovascular Services, Aurora Health Care; University of Wisconsin School of Medicine and Public Health
  • Jasbir Sra, Aurora Cardiovascular Services, Aurora Sinai/Aurora St. Luke’s Medical Centers, University of Wisconsin School of Medicine and Public Health
  • Arshad Jahangir, Sheikh Khalifa bin Hamad Al Thani Center for Integrative Research on Cardiovascular Aging, Aurora Research Institute, Aurora Health Care
Aurora Affiliations

Aurora Research Institute

Publication Date
5-1-2016
Abstract
Introduction: Weight loss after bariatric surgery in morbidly obese patients reduces atrial fibrillation (AF); however it is not known if similar benefits are maintained in patients with and without obstructive sleep apnea (OSA). We sought to determine whether weight loss after laparoscopic adjustable gastric banding (LAGB) had a similar effect on new onset AF event rates in patients with and without OSA. Methods: Differences in LAGB-induced weight loss on incident AF in those with OSA and matched non-OSA patients were determined by Kaplan-Meier and Cox regression analysis and predictors of AF after LAGB indentified. Results:Out of 843 morbidly obese patients [body mass index (BMI) ≥35 kg/m2] who underwent LAGB (mean age 44±11 years, mean BMI 49±8 kg/m2) and were followed for 11 years, new onset AF was documented in 38 (4.5%). The mean reduction in BMI over the median follow-up of 63.6 months was 11 kg/m2. Despite similar weight loss, patients with OSA had significantly higher rate of incident AF compared to those without OSA (Figure; at 5 years 9.8% vs 1.8%, p Conclusions: Patients with OSA, despite a similar weight loss to those without OSA after LAGB, had a significantly higher rate of AF events. Further investigation is warranted into whether compliance with OSA treatment helps reduce AF events.
Document Type
Abstract
DOI
10.1016/j.hrthm.2016.03.026
Citation Information

Dalmar A, Singh M, Heis Z, Mirza M, Choudhuri I, Bhatia A, Mortada ME, Niazi I, Nangia V, Chua TY, Tajik AJ, Sra JS, Jahangir A. AB15-01: The Risk Of Atrial Fibrillation After Bariatric Surgery In Patients With Morbid Obesity With And Without Obstructive Sleep Apnea. Heart Rhythm. 2016; 13(5):S33-34.