Ectopic Atrial Rhythm by ECG Finding

**Semantic type:** Finding

**Definition:** An electrocardiographic finding of a regular atrial rhythm with atrial rate of less than 101 beats per minute which does not originate in the sinus node, and which is characterized by P waves whose morphology differs from the P wave morphology during sinus rhythm. (CDISC)

**Synonyms:** - ECTOPIC ATRIAL RHYTHM - Ectopic Atrial Rhythm - Ectopic Atrial Rhythm by EKG Finding - Ectopic Supraventricular Rhythm