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Published on: November 4, 2015
Coil embolization of an aorticopulmonary fistula in a dog
Stacey B Leach1, Deborah M Fine, Robert J Schutrumpf
1Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, 900 East Campus Drive, Columbia, MO 65211, USA. Leachsb@missouri.edu
Insights
A Basset Hound with congestive heart failure had an aorticopulmonary fistula, a rare vascular defect. Coil embolization provided temporary relief, but the dog was euthanized six months later.
Area of Science:
- Veterinary Cardiology
- Interventional Radiology in Animals
Background:
- Congestive heart failure and atrial fibrillation are serious cardiac conditions in dogs.
- Aorticopulmonary fistulas are uncommon vascular abnormalities that can lead to significant shunting of blood.
Observation:
- An 8-year-old Basset Hound presented with clinical signs of congestive heart failure and atrial fibrillation.
- Diagnostic imaging, including echocardiography and angiography, revealed a left-to-right shunting aorticopulmonary fistula.
Findings:
- Initial treatment involved coil embolization to reduce blood flow through the fistula.
- The procedure offered temporary hemodynamic improvement, but the dog's condition ultimately progressed.
Implications:
- This case highlights the challenges in managing complex congenital or acquired vascular defects in canine patients.
- Understanding the physiology and treatment options for arteriovenous fistulae is crucial for veterinary specialists.
Abstract:
An 8-year-old, castrated male Basset Hound was evaluated for congestive heart failure and atrial fibrillation. Echocardiography and angiography demonstrated a left-to-right shunting aorticopulmonary fistula. Coil embolization of the fistula was initially successful in reducing the volume of blood flow through the vascular network. The dog was medically managed for congestive heart failure until it was euthanized 6 months after initial presentation. The physiology and treatment of centrally located arteriovenous fistulae are discussed.
