An atrioventricular canal is a congenital heart defect that connects chambers of your child’s heart that shouldn’t be connected. Atrioventricular canals usually require surgical treatment. It usually ...

Atrioventricular nodal reentrant tachycardia (AVNRT) is a common supraventricular arrhythmia that arises due to a reentrant circuit located in or near the atrioventricular node. This condition ...

A 52-year-old woman presented to the emergency department with palpitations associated with uneasiness and nausea. She was a nonsmoker. She reported having one previous episode of palpitations, ...

In the treatment of atrioventricular block, dual-chamber cardiac pacing is thought to confer a clinical benefit as compared with single-chamber ventricular pacing, but the supporting evidence is ...

Lyme disease is a tick-borne bacterial infection (mainly Borrelia burgdorferi) with endemic regions predominantly along the Canada–United States border. In 2016, 987 cases of Lyme disease were ...

PHILADELPHIA — Accelerometer-based atrial sensing with a novel, enhanced, automated algorithm in patients with atrioventricular block and a single-chamber leadless pacemaker in the right ventricle ...

In patients undergoing transcatheter aortic valve replacement (TAVR), high‑grade atrioventricular blocks occurring during and after the procedure had distinct mechanisms and predictors. Both ...

Atrioventricular septal defect is a developmental irregularity in which a hole connects two or more chambers in your child’s heart. This hole may connect the top two, the bottom two, or all four ...