Abstract
AIMS: Various drugs increase the risk of out-of-hospital cardiac arrest (OHCA) in the general population by impacting cardiac ion channels, thereby causing ventricular tachycardia/fibrillation (VT/VF). Dihydropyridines block L-type calcium channels, but their association with OHCA risk is unknown. We aimed to study whether nifedipine and/or amlodipine, often-used dihydropyridines, are associated with increased OHCA risk, and how these drugs impact on cardiac electrophysiology. METHODS AND RESULTS: We conducted a case-control study with VT/VF-documented OHCA cases with presumed cardiac cause from ongoing population-based OHCA registries in the Netherlands and Denmark, and age/sex/index date-matched non-OHCA controls (Netherlands: PHARMO Database Network, Denmark: Danish Civil Registration System). We included 2503 OHCA cases, 10 543 non-OHCA controls in Netherlands, and 8101 OHCA cases, 40 505 non-OHCA controls in Denmark. To examine drug effects on cardiac electrophysiology, we performed single-cell patch-clamp studies in human-induced pluripotent stem cell-derived cardiomyocytes. Use of high-dose nifedipine (≥60 mg/day), but not low-dose nifedipine (
Original language | English |
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Pages (from-to) | 347-355 |
Number of pages | 9 |
Journal | European heart journal. Cardiovascular pharmacotherapy |
Volume | 6 |
DOIs | |
Publication status | Published - Nov 2020 |
Keywords
- Amlodipine
- Epidemiology
- Nifedipine
- Sudden cardiac arrest
- action potential
- adult
- article
- calcium current
- cardiac muscle cell
- case control study
- controlled study
- Denmark
- drug effect
- drug megadose
- female
- heart electrophysiology
- heart ventricle tachycardia
- human
- human cell
- induced pluripotent stem cell
- ischemic heart disease
- low drug dose
- major clinical study
- male
- Netherlands
- out of hospital cardiac arrest
- patch clamp technique
- sudden cardiac death
- titrimetry
- amlodipine
- calcium channel L type
- endogenous compound
- nifedipine
- nitric acid derivative