Atrial Fibrillation, CTCAE

**Semantic type:** Finding

**Definition:** A disorder characterized by a dysrhythmia without discernible P waves and an irregular ventricular response due to multiple reentry circuits. The rhythm disturbance originates above the ventricles.

**Synonyms:** - Atrial Fibrillation - Atrial fibrillation - Atrial fibrillation - Atrial fibrillation