The proarrhythmic effect of cardiac resynchronization therapy: An issue that should be borne in mind

The demonstrated benefits of cardiac resynchronization therapy (CRT) in reducing mortality and hospitalizations for heart failure, improving NYHA functional class and inducing reverse remodeling have led to its increasing use in clinical practice. However, its potential contribution to complex ventricular arrhythmias is controversial. We present the case of a female patient with valvular heart failure and severe systolic dysfunction, in NYHA...