J Clin Med. 2021 Apr 17;10(8). doi: 10.3390/jcm10081753.
Association of Guideline-Based Medical Therapy with Malignant Arrhythmias and Mortality among Heart Failure Patients Implanted with Cardioverter Defibrillator (ICD) or Cardiac Resynchronization-Defibrillator Device (CRTD).
Journal of clinical medicine
Tal Hasin, Ilia Davarashvili, Yoav Michowitz, Rivka Farkash, Haya Presman, Michael Glikson, Moshe Rav-Acha
Affiliations
Affiliations
- Jesselson Integrated Heart Center, Shaare Zedek Medical Center, Hebrew University, Jerusalem 9103102, Israel.
- Faculty of Medicine, Hebrew University, Jerusalem 9103102, Israel.
PMID: 33920719
PMCID: PMC8073338 DOI: 10.3390/jcm10081753
Abstract
AIM: Evaluate prevalence of heart failure (HF) medications and their association with ventricular arrhythmia (VA) and survival among patients implanted with primary prevention implantable cardiac defibrillator (ICD)/cardiac resynchronization therapy + defibrillator (CRTD) devices.
METHODS: Association of treatment and dose (% guideline recommended target) of beta-adrenergic receptor antagonist (BB), angiotensin-antagonists (AngA), and mineralocorticoid-antagonists (MRA), after ICD/CRTD implant with VA and mortality was retrospectively analyzed.
RESULTS: Study included 186 HF patients; 42.5% and 57.5% implanted with ICD and CRTD, respectively. During 3.8 (2.1;6.7) years; 52 (28%) had VA and 77 (41.4%) died. Treatment (% of patients) included: BB (83%), AngA (87%), and MRA (59%). Median doses were 25(12.5;50)% of target for all medications. BB treatment >25% target dose was associated with reduced VA incidence. In the multivariable model including age, gender, diabetes, heart rate, and medication doses, increased BB dose was associated with reduced VA (hazard ratio (HR) 0.443 95% CI 0.222-0.885;
CONCLUSIONS: In this cohort of real-life HF patients discharged after ICD/CRTD implant, prevalence of guideline-based HF medications was high, albeit with low doses. Higher BB dose was associated with reduced VA, while AngA was associated with improved survival.
Keywords: arrhythmia; defibrillator; heart failure; medical treatment
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