Skip to main content
Other
PO06-21: Benefit of implantable cardioverter defibrillator in patients with improved left ventricular systolic function
Heart Rhythm
  • Kanwar Y Singh, Aurora Health Care
  • Firas Zahwe, Aurora Health Care
  • Bilal Omery, Aurora Health Care
  • Wassim Ballany
  • Robyn Shearer, Aurora St. Luke's Medical Center, Aurora Health Care
  • Tadele Mangesha
  • M. Eyman Mortada, Aurora Cardiovascular Services, Aurora Sinai/Aurora St. Luke’s Medical Centers, 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
  • Indrajit Choudhuri, Aurora Cardiovascular Services, Aurora Sinai/Aurora St. Luke’s Medical Centers, University of Wisconsin School of Medicine and Public Health
Aurora Affiliations

Aurora Cardiovascular Services, Aurora Research Institute, Aurora Sinai/Aurora St. Luke's Medical Centers

Publication Date
5-1-2016
Abstract

Introduction: About 25% patients with primary prevention implantable cardioverter-defibrillator (ICD) will have improved left ventricular (LV) ejection fraction (EF) on follow-up. Whether ICD benefits this cohort is largely unknown.

Methods: Clinical characteristics and outcomes of patients in the Aurora Health System with transient LV dysfunction (initial LVEF≤35% that improved to ≥40%, during 1/1/2010-12/31/2014, were compared between primary prevention ICD recipients and those without ICD. Patients with cardiac resynchronization therapy, cardiac transplant and LV assist devices were excluded. We used Kaplan-Meier, chi-square and Fisher exact test for analysis.

Results:One thousand three hundred sixty-four patients developed transient LV dysfunction. One hundred forty-eight (10.8%) had ICD implant. ICD recipients (vs. non-ICD patients) were more likely to be male (72% vs. 28.4%, p

Conclusions: ICD is associated with mortality benefit in patients with transient LV dysfunction suggesting continued sudden death protection in patients with LVEF≥40%. This highlights the drawbacks of LVEF as ICD implant criterion.

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

Singh K, Zahwe F, Omery B, et al. PO06-21: Benefit Of Implantable Cardioverterdefibrillator In Patients With Improved Left Ventricular Systolic Function. Heart Rhythm. 2016; 13(5):S522-523.