Test your knowledge of the ECG manifestations of cardiac and systemic disease with these clinical quizzes from JAMA Internal Medicine.
This case report presents the electrocardiographic findings in a woman with dextroversion.
This report of a case describes a man in his 70s with type 2 diabetes, hypertension, and hyperlipidemia who presented to the emergency department with 4 days of progressive dizziness, shortness of breath, and chest pain on exertion.
This case report describes the occurrence of atrial flutter presenting on an electrocardiogram as electrical alternans.
This case report describes the electrocardiographic indications and challenges involved in the diagnosis of pause-dependent torsades de pointes ventricular tachycardia.
This case report describes a wide complex tachycardia in a woman with type 2 diabetes, hypertension, dyslipidemia, and obseity.
A woman in her late 40s presents with palpitations with near syncope, monomorphic ventricular tachycardia, and multiple normal test results. What would you do next?
This case report describes a diagnostically challenging electrocardiography finding after apparent chemotherapy infusion reaction.
This case report presents the electrocardiographic findings of a man in his 70s with a history of type 2 diabetes and hypertension who presented with syncope; there was no seizure activity or preceding chest pain, palpitations, or shortness of breath.
This case report examines the electrocardiographic findings of a woman in her 70s with hypothyroidism and hypertension who experienced a syncopal episode.
This case report describes new left bundle branch block and disappearance of the P wave in a patient undergoing transcatheter aortic valve replacement (TAVR).
This case report describes a case of concomitant sinus tachycardia and spontaneous focal tachycardia arising from the atrioventricular junction.
A man with complex congenital heart disease that included D-transposition of the great arteries, single ventricle physiology, and Fontan circulation was admitted to a hospital with lightheadedness and syncope that occurred while he was walking; he had a heart rate of 183 bpm in the emergency department. What is your diagnosis?
This case report presents the electrocardiographic findings of a woman with a history of progressive cyanosis and dyspnea developing chest tightness and shortness of breath after a cold.
This case report presents the electrocardiographic findings of a man with sudden-onset chest pain that radiated to his left arm, with associated nausea and diaphoresis.
This case report presents the electrocardiographic findings of a young woman with anorexia nervosa who had chest pain and persistent weight loss.
This case report presents the electrocardiographic findings from a man in his 50s with a dual-chamber pacemaker implanted for sinus node dysfunction who had severe back pain, fevers, drenching night sweats, and weight loss.
A man in his 80s with unknown medical history was brought to the emergency department after a cardiac arrest.
A healthy woman in her 20s presented to the emergency department with palpitations, a heart rate of 200 beats per minute, and normal heart sounds with no murmurs, rubs, or gallops after completing a run.
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