The widowmaker heart attack lives up to its ominous name. Here, cardiologists break down what to watch for, and how to avoid ...

Upon review of this body and the described ECG findings, certain common patterns ... observational studies (most commonly nonsustained SVT, atrial fibrillation and sinus bradycardia).

The most common causes are ICD inactivation, VT slower than the programmed detection interval, SVT-VT discriminators, undersensing, and intradevice software interactions. Pacemaker-ICD ...