1. MARKED QRS PROLONGATION FROM FLECAINIDE DURING EXERCISE STRESS TESTING
- Author
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Monica G. Rizkalla, Nicholas Chan, Marinos Charalambous, John N. Makaryus, and Laurence M. Epstein
- Subjects
Proarrhythmia ,Exercise stress testing ,medicine.medical_specialty ,Qrs prolongation ,business.industry ,Exercise stress ,Atrial fibrillation ,medicine.disease ,RESTING HEART RATE ,QRS complex ,Internal medicine ,cardiovascular system ,Cardiology ,Medicine ,cardiovascular diseases ,Cardiology and Cardiovascular Medicine ,business ,Flecainide ,circulatory and respiratory physiology ,medicine.drug - Abstract
Flecainide is commonly used for atrial fibrillation. Caution is advised due to its risk of proarrhythmia. If there is a > 15% - 20% increase in the QRS duration at resting heart rate, the dose should be reduced. An exercise stress test should be performed, to make sure the QRS does not increase
- Published
- 2019