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PO06-11: The risk of stroke and atrial fibrillation after bariatric surgery in patients with morbid obesity
Heart Rhythm
  • Maharaj Singh, Aurora Research Institute, Aurora Health Care
  • Ahmed Dalmar, Aurora Research Institute, Aurora Health Care
  • Mahek Mirza, Aurora Health Care
  • Zoe Heis, Aurora Health Care
  • Atul Bhatia, Aurora Cardiovascular Services, Aurora Health Care; University of Wisconsin School of Medicine and Public Health
  • Indrajit Choudhuri, 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
  • M. Eyman Mortada, Aurora Cardiovascular Services, Aurora Sinai/Aurora St. Luke’s Medical Centers, University of Wisconsin School of Medicine and Public Health
  • Vikram Nangia, Aurora Health Care
  • Thomas Chua, Aurora Health Care
  • Jasbir Sra, Aurora Cardiovascular Services, Aurora Sinai/Aurora St. Luke’s Medical Centers, University of Wisconsin School of Medicine and Public Health
  • A. Jamil Tajik, Aurora Cardiovascular Services, Aurora Health Care; 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, Aurora Sinai/Aurora St. Luke's Medical Centers, Aurora Cardiovascular Services

Publication Date
5-1-2016
Abstract

Introduction:

Weight loss after bariatric surgery in obese patients reduces stroke risk; however, it is not known if similar benefits are maintained for all patients and whether atrial fibrillation (AF) plays a major role in stroke after weight loss.

Methods: Descriptive statistics were used for category and continuous variables and Cox regression analysis and predictors of stroke events were identified.

Results:Out of 847 morbidly obese patients [body mass index (BMI) ≥35 kg/m2] who underwent laparoscopic adjustable gastric banding (LAGB) and were followed for 11 years (mean age 44±11 years, mean BMI 49±8 kg/m2), incident stroke occurred in 44 (5.2%) patients. AF was present in eight patients (18%) at the time of LAGB who later developed stroke. New onset AF after LAGB developed in 38 (4.5%) patients over a median follow-up of 63.6 months, which was complicated by stroke in 5 patients. Of all patients who developed stroke, AF was documented in 13 patients (30%), while majority had no documented AF (n=31; 70%). On multivariate analysis, obstructive sleep apnea (HR=6.0; 95% CI 3.0- 12.1, p

Conclusions: In patients with morbid obesity who have undergone LAGB both non-AF and AF-related factors were involved in increasing the risk of stroke. Further investigation is warranted to define the relation between stroke with obstructive sleep apnea and Hispanic ethnicity.

Document Type
Abstract
DOI
10.1016/j.hrthm.2016.03.032
Citation Information

Singh M, Dalmar A, Mirza M, et al. PO06-11: The Risk Of Stroke and Atrial Fibrillation After Bariatric Surgery in Patients With Morbid Obesity. Heart Rhythm. 2016; 13(5):S518-519.