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Mitral valve reconstruction in a toy-breed dog
L S Boggs1, S J Dewan, S E Ballard
1Griffith Small Animal Hospital, Austin, TX 78731, USA.
Journal of the American Veterinary Medical Association
|December 1, 1996
Summary
A Maltese dog with severe congestive heart failure underwent successful mitral valve repair using cardiopulmonary bypass. This innovative treatment resolved heart failure symptoms, eliminating the need for medication.
Area of Science:
- Veterinary Cardiology
- Cardiovascular Surgery
- Canine Medicine
Background:
- Congestive heart failure (CHF) in dogs can be debilitating.
- Mitral valve disease is a common cause of CHF in small breed dogs.
- Refractory CHF cases require advanced treatment options.
Observation:
- A 9-year-old, 3-kg spayed Maltese presented with severe CHF unresponsive to medical management.
- Pre-operative echocardiography showed significant mitral valve prolapse, annular dilation, and severe mitral regurgitation.
- Thoracic radiographs confirmed hilar pulmonary edema.
Findings:
- The dog underwent successful cardiopulmonary bypass and mitral valve repair.
- Post-operative echocardiography revealed normalization of cardiac dimensions.
- The dog recovered fully, with all CHF medications discontinued and no clinical signs of heart disease.
Implications:
- Mitral valve repair via cardiopulmonary bypass is a viable and effective treatment for refractory CHF in dogs.
- This surgical approach can significantly improve quality of life and long-term prognosis.
- Further research into surgical interventions for canine heart disease is warranted.