Congenital malformations of the tricuspid valve in domestic carnivores: A retrospective study of 50 cases | Les malformations congenitales de la valve tricuspide chez les carnivores domestiques: etude retrospective de 50 cas
2004
Chetboul, V. | Tran, D. | Carlos, C. | Tessier, D. | Pouchelon. J.L.,Ecole Nationale Veterinaire d'Alfort, Maisons-Alfort (France). Unite de Cardiologie d'Alfort
A retrospective study was done on 14 cats and 36 dogs diagnosed with right atrioventricular valve malformations (RAVM), either tricuspid dysplasia (n = 38) or Ebstein´s anomaly (n = 12). Comparison with a large reference population including 8 5 250 animals allowed an epidemiologic analysis of these RAVM, demonstrating that Labrador, Boxer and Chartreux cats had a 35, 7 and 11-fold higher risk respectively to be affected by one of these heart diseases than other breeds, without sexual predis-position. In 93% of cases, cardiac auscultation revealed a heart murmur, whose grade was not significantly correlated with the echographic stages of the valvular disease. The echocardiographic examination confirmed the frequent association between RAVM and other congenital anomalies, particularly mitral dysplasia, in 84% and 20% of tricuspid dysplasia and Ebstein anomaly respectively. Last, the prognosis of RAVM was worsened by atrial fibrillation and right-sided heart failure.
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