Abstract
Implantable cardioverter defibrillator (ICD) has a class IA indication in survivors of sudden cardiac arrest (SCA) provided no reversible cause is identified. We sought to determine trends and predictors of ICD implant in SCA patients from a national sample of the United States population. Data were gathered from National Inpatient Sample (NIS) from January 2003 to December 2014. All patients ≥18 years of age with a primary discharge diagnosis of SCA, ventricular fibrillation (VF), ventricular flutter, and ventricular tachycardia (VT) were included. Patients died during hospitalization, had a previous ICD implant, and with a reversible cause of SCA were excluded. Primary outcome of interest was rate of new ICD implant at discharge. Logistic regression analysis was then performed to determine predictors for ICD implantation. A total of 176,876 patients were identified to have SCA, VF, ventricular flutter, and VT. After applying exclusion criteria, we were left with 22,054 patients. Out of this, 6,908 (31%) patients were implanted with an ICD prior to discharge. There was a linear trend toward reduced ICD utilization over our study period (40% in 2003 vs 25% in 2014, P trend = 0.0004). Advanced age, black race, and chronic renal ...Continue Reading
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