Reading the Rhythm: How Cycle Length Variation Helps Diagnose Equine Arrhythmias

Send us Fan Mail One strange beat on a resting horse ECG can spark a surprisingly high-stakes question: are we seeing a normal sinus arrhythmia, or an atrial premature complex that changes how we think about risk and follow-up? We sit down with Drs. Kath Mitchell and Beth Williams to make that decision point less subjective, less stressful, and more repeatable for anyone interpreting equine ECGs. We dig into why the classic RR interval approach sometimes falls short, especially when subtle c...