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Permanent transvenous pacemaker implantation in forty dogs
D Sisson1, W P Thomas, J Woodfield
1Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana 61801.
Journal of Veterinary Internal Medicine
|November 1, 1991
Summary
Permanent transvenous cardiac pacemakers offer a feasible alternative for dogs with heart rhythm issues. Careful implantation is key to minimizing complications like lead dislodgement.
Area of Science:
- Veterinary Cardiology
- Medical Devices
Background:
- Cardiac arrhythmias are common in dogs.
- Traditional epimyocardial pacing can be invasive.
Purpose of the Study:
- To evaluate the feasibility and outcomes of permanent transvenous cardiac pacemaker implantation in dogs.
- To identify complications associated with the procedure.
Main Methods:
- Implantation of permanent transvenous cardiac pacemakers in 40 dogs.
- Electrocardiographic diagnosis of arrhythmias including atrial standstill, sick sinus syndrome, and AV block.
- Follow-up for survival and complications.
Main Results:
- 13 dogs survived long-term (mean 16.9 months).
- Most deaths were unrelated to the pacemaker or arrhythmia.
- Lead dislodgement was the most frequent complication, particularly with untined leads.
Conclusions:
- Transvenous pacing is a viable, less invasive option compared to epimyocardial pacing in dogs.
- Careful surgical technique and awareness of potential complications are crucial for successful outcomes.
- Actively fixed leads may reduce lead dislodgement incidence.