A 72-year-old man is scheduled to undergo left-sided valve surgery for severe mitral regurgitation. Preoperative echocardiography reveals mild-to-moderate secondary tricuspid…

…variant in a desmosomal protein. An echocardiogram shows a left ventricular ejection fraction of 50% with mild right ventricular dilation. He is an avid competitive…

…the past 6 months. An echocardiogram reveals a left ventricular ejection fraction of 35% with global hypokinesis and left ventricular dilatation. Coronary angiography shows no…

A 68-year-old man with a history of persistent atrial fibrillation (AF) underwent extensive left atrial ablation, including circumferential antral pulmonary vein isolation and…

A 62-year-old male with a history of hypertension and known left ventricular hypertrophy (LVH) presents to the emergency department with atypical chest pain…

…department with sustained monomorphic ventricular tachycardia (VT). He is hemodynamically stable. An ECG during VT shows a QRS duration of 160 ms with a left…

…emergency department with acute onset chest pain that started six hours ago. The pain is described as intense and crushing, radiating to her left shoulder…

…lead –aVR, which is consistent with an electrical axis of 30 degrees ( lead –aVR is located at 30 degrees in the coordinate system ). Finally you…

Which of the following ECG findings is typically considered a normal variant in asymptomatic athletes with no significant family history?

…Ventricular Rate 126 beats/min Atrial Rate 126 beats/min QRS Duration 90 ms QT Interval 334 ms QT Corrected 483 ms RAxis 243 ms…