Key result
Cardiopulmonary bypass and mitral valve repair in a 9-year-old Maltese dog with congestive heart failure resulted in normalization of echocardiographic measurements and resolution of clinical signs.
Case Report (n=1)
Mitral valve repair using cardiopulmonary bypass was successfully performed in a small toy-breed dog with medically refractory congestive heart failure.
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Supports feasibility of mitral repair in small dogs with refractory CHF; hypothesis-generating pending larger prospective studies.
A 9-year-old 3-kg spayed Maltese with congestive heart failure that did not respond to aggressive medical treatment underwent cardiopulmonary bypass and mitral valve repair. Prior to surgery, echocardiography revealed a markedly dilated mitral annulus, left atrium, and left ventricle; prolapse of the parietal mitral valve leaflet; and mitral regurgitation. Hilar pulmonary edema was evident on thoracic radiographs. After surgery, echocardiographic measurements of the heart returned to reference range, all medication was discontinued, and the dog did not have clinical signs of heart disease.
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Boggs et al. (1996) conducted a case report in Congestive heart failure and mitral regurgitation (n=1). Cardiopulmonary bypass and mitral valve repair was evaluated on Echocardiographic measurements and clinical signs of heart disease. Cardiopulmonary bypass and mitral valve repair in a 9-year-old Maltese dog with congestive heart failure resulted in normalization of echocardiographic measurements and resolution of clinical signs.
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