Equine Atrial Fibrillation

Amara H. Estrada, DVM, DACVIM (Cardiology), University of Florida

ArticleSeptember 20141 min read

In this recording from a horse, S1, S2 and S3 sounds can be heard; these are normal equine heart sounds. However, this rhythm is irregular and slightly faster than normal for a horse because of atrial fibrillation development.