Determination of left atrial volume in healthy dogs and dogs with myxomatous mitral valve disease

Pesquisa Veterinária Brasileira

Zacche, Evandro¹  Camacho, Rafael R.²  Franco, Rodrigo P.¹  Sousa, Marlos G.³  Camacho, Aparecido A.² 

[1] Universidade de Marília, Marilia, Brazil;Universidade Estadual Paulista, Jaboticabal, Brazil;Universidade Federal do Paraná, Curitiba, Brazil

关键词:  Volume;    left atrial;    endocardiosis;    dogs.;   

DOI  :  10.1590/S0100-736X2016000800011

来源: Colegio Brasileiro de Patologia Animal-CBPA

【 摘 要 】

:The left atrial volume (LAV) can be obtained using the biplane Simpson's method via echocardiography. Although in medicine this parameter has been considered to be a prognostic marker of left atrial enlargement in several cardiac diseases, in dogs with myxomatous mitral valve degeneration (MMVD), a valvulopathy characterized by left atrial (LA) volume overload, atrial enlargement is usually assessed by the LA-to-Aorta ratio (LA:Ao). Therefore, the body surface area (BSA)-indexed LAV was measured in healthy dogs and in dogs with MMVD using the biplane Simpson's method. For this purpose, a total of 107 healthy dogs (control) and 81 dogs with MMVD in ACVIM stages B1, B2 and C were assessed, with LAV being calculated during atrial diastole (d) and systole (s) through the biplane Simpson's method. Two-dimensional apical four-chamber (4C) and two-chamber (2C) images were obtained in every dog through the left parasternal window. The values obtained from healthy dogs were correlated with body weight using Pearson's test. An analysis of variance (ANOVA) and Tu

【 授权许可】

Unknown