Multifocal Atrial Tachycardia by ECG Finding

**Semantic type:** Finding

**Definition:** An electrocardiographic finding of a supraventricular arrhythmia characterized by 3 or more distinct P wave morphologies with an isoelectric baseline, variable PR intervals and no predominant atrial rhythm. The ventricular rate is typically 100-150 beats per minute. (CDISC)

**Synonyms:** - MULTIFOCAL ATRIAL TACHYCARDIA - Multifocal Atrial Tachycardia - Multifocal Atrial Tachycardia by EKG Finding - Multifocal atrial tachycardia