Veterinary Clinics of North America – Equine Practice 35: 65-83.

Katharyn J. Mitchell, BVSc, DVCS, DVM, PhD


 A definitive diagnosis of any arrhythmia or investigation of unexplained tachycardia or bradycardia is made with electrocardiography (ECG).

Resting, exercising, and ambulatory ECGs are important parts of the diagnostic evaluation of many equine patients.

Recording ECGs in horses is easier than ever with contemporary, digital ECG recorders. 

Good-quality ECG recordings are essential to make an accurate diagnosis.

A stepwise, logical approach to ECG analysis facilitates recognition and diagnosis of arrhythmias.