Transient third‐degree atrioventricular block with type 1 isorhythmic atrioventricular dissociation with accrochage during anaesthesia in a dog
Abstract
Abstract An 8‐year‐old, male, neutered, mixed‐breed dog presented for treatment of a left medial patellar luxation. Thirty minutes following the induction and maintenance of general anaesthesia, a second‐degree atrioventricular block was identified, rapidly progressing to third‐degree atrioventricular block with type 1 isorhythmic atrioventricular dissociation. As the dog's non‐invasive blood pressure remained normal, no intervention was implemented, and the dog was found to have returned to sinus rhythm with repeat electrocardiography the next day. The inciting cause of the conduction disturbance is hypothesised to be a result of anaesthetic drugs and/or relatively increased vagal tone.
Fields of Study & Subjects
Cardiovascular Conditions and Treatments
Veterinary Pharmacology and Anesthesia
Cardiac Arrhythmias and Treatments
Publication details
- Journal / source
- Veterinary Record Case Reports
- Publisher
- Wiley
- Volume
- 14
- Issue
- 1
- Publication date
- 1 February 2026
- Language
- EN