Insuficiência de mitral: relato de caso em um quati (Nasua nasua) de vida livre

Abstract

Myxomatous mitral valve disease, known as endocardiosis, is widely known and diagnosed in dogs; however, its occurrence in wild animals remains poorly understood and documented. This study aimed to analyze an echocardiogram performed on a young coati (Nasua nasua) (Linnaeus, 1766) captured in Iguaçu National Park. The echocardiographic examination was performed as a routine examination to assess the health status of specimens in this group. During the examination, thickening of the left atrioventricular valve was identified. Color Doppler ultrasound revealed turbulence suggestive of regurgitation, and left atrium/aorta measurement showed possible enlargement, consistent with secondary remodeling. The parameters of the findings were compared to the criteria proposed by the American College of Veterinary International Medicine (ACVIM) consensus for the characterization of mitral valve disease, suggesting alterations compatible with the condition. The lack of species-specific patterns limits precise diagnosis, highlighting the need for further research. This case report highlights the importance of using echocardiography in cardiovascular assessment in freeliving individuals and confirms the need to establish cardiological reference parameters for the species under study.