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Isorhythmic atrioventricular dissociation during anesthesia in three cats
Alexandra R Robinson1,2, Paulo V Steagall1,3,4
1Department of Clinical Sciences, Faculty of Veterinary Medicine, Université de Montréal, Saint-Hyacinthe, QC, Canada.
JFMS Open Reports
|March 26, 2026
Summary
This case series reports isorhythmic atrioventricular dissociation (IAVD) in anesthetized cats. Anticholinergic treatment was effective for cats with hemodynamic compromise, while one cat recovered without intervention.
Area of Science:
- Veterinary Cardiology
- Anesthesiology
- Cardiac Electrophysiology
Background:
- Isorhythmic atrioventricular dissociation (IAVD) is a recognized dysrhythmia in domestic felids under general anesthesia.
- Limited literature exists on the development, recognition, and treatment of IAVD in cats.
- IAVD is characterized by near-equivalent atrial and junctional rates, differentiating it from complete heart block.
