…a regular narrow-complex tachycardia. The event is triggered by a premature atrial beat that is immediately followed by a sudden, marked prolongation of the…

…diagnosed with Short QT syndrome (SQTS), predisposing him to premature atrial fibrillation (AF) and ventricular fibrillation (VF). Which of the following genetic mechanisms is associated…

A 26-year-old man is diagnosed with arrhythmogenic cardiomyopathy after presenting with symptomatic premature ventricular complexes. Genetic testing reveals a pathogenic variant in a…

…six months. A 24-hour Holter monitor demonstrates a high burden of premature ventricular complexes and several runs of non-sustained ventricular tachycardia. A transthoracic…

In patients with atrial fibrillation with an indication for oral anticoagulation, what is the recommended strategy for antithrombotic therapy after 1 week of triple antithrombotic…

…initial assessment concludes that the ECG is normal, but your colleague warns you that lead V1 may reveal an ongoing atrial flutter. Is that correct…

What is the correlation of isolated axis deviation or voltage criteria for atrial enlargement with cardiac pathology in athletes?

A 28-year-old male with Wolff-Parkinson-White (WPW) syndrome presents to the emergency department in atrial fibrillation. His ECG shows a rapid, irregular…

…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…

…that started approximately 2 hours ago. An electrocardiogram (ECG) reveals atrial fibrillation with a rapid ventricular rate of 140 bpm. Initial troponin I is elevated…