…old male with a confirmed diagnosis of myotonic dystrophy presents for a routine cardiac follow-up. He is completely asymptomatic, denying any history of syncope…

…year-old male with a history of ischemic cardiomyopathy and a dual-chamber pacemaker presents to the emergency department with palpitations and shortness of breath…

…fraction (LVEF) of 55%. The decision is made to proceed with atrioventricular (AV) node ablation and implantation of a permanent pacemaker. Which of the following…

A 58-year-old female is resuscitated following a cardiac arrest. Her ECG, after ROSC, shows persistent ST-segment elevations in leads V2-V5). She…

…murmur at the cardiac apex. Initial comprehensive transthoracic echocardiography (TTE) confirms the presence of mitral stenosis (MS) but provides suboptimal visualization of the mitral valve…

…for sudden cardiac death in specific adult congenital heart disease (ACHD) populations. In which of the following underlying conditions is the presence of SVT most…

Which statement accurately describes the general clinical significance of isolated borderline ECG findings in athletes and the recommendation when multiple borderline findings are present?

…woman presents to the emergency department with chest pain. Her initial high-sensitivity cardiac troponin (hs-cTn) level is at the 97th percentile of the…

…cardiac arrest with a shockable rhythm. After successful resuscitation and return of spontaneous circulation (ROSC), an ECG is obtained. The patient's ECG is presented…

Male 58 years with chest pain. Which abnormalities are present? Click to enlarge ECG.

…Physical examination did not reveal anything unusual. The ECG shows a heart rate of 69 beats per minute. The PR interval is 180 ms (normal…