Ninety-four dogs with DMVD and 32 healthy dogs.
Prospective cross-sectional observational study. Dogs with DMVD of various American College of Veterinary Internal Medicine classification stages and healthy control dogs underwent physical examination, electrocardiography, systolic blood pressure measurement, as well as a standard and speckle tracking echocardiography. Global longitudinal strain (GLS) and TMAD were used to assess longitudinal systolic function.
The global TMAD and global TMAD were higher in American College of Veterinary Internal Medicine B2 animals than in the stage CD. Global TMAD ,bodyweight3, were correlated with GLS and ejection fraction. Global TMAD , and GLS were influenced by sex. In addition, systolic blood pressure influenced GLS (P < 0.01; r = -0.23), global TMAD (P = 0.017; r = -0.21) and global TMAD (P = 0.031; r = -0.19). Tissue motion annular displacement was fast to be performed and produced good repeatability in dogs with DMVD.
Global TMAD was reduced in DMVD dogs with clinical signs of heart failure compared with stage B2. Tissue motion annular displacement was shown to be a repeatable technique for evaluation of longitudinal systolic function in dogs with DMVD.
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