Despite technological, diagnostic, and therapeutic advances in electrophysiology, the electrocardiogram continues to be a fundamental tool in the field of cardiac arrhythmias. Its validity has not lost ground, given its simplicity, low cost and availability.

In this new section, we will share interesting electrocardiographic tracings, shared by colleagues from across the Americas.

If you have an ECG that you would like to share with us, please email us at with the subject: LAHRS ECG Corner.

Paroxysmal repetitive tachycardia

Paroxysmal palpitations

Tachyarrhythmia in a patient with congenital heart disease