Junctional Tachycardia

Junctional Tachycardia is a type of abnormal heart rhythm that originates from the AV junction. It occurs when the electrical signals in the heart are generated from the AV node or nearby tissue instead of the usual pacemaker in the upper part of the heart, the sinoatrial (SA) node.

ECG Features

Heart rate: 100-180bpm

P waves: Absent, inverted, or buried in the QRS complex

QRS complex: Normal duration (narrow)

PR interval: Shortened or absent

Rhythm: Regular