Assessment of longitudinal systolic function using tissue motion annular displacement in dogs with degenerative mitral valve disease.

Autor: Wolf M; Laboratory of Comparative Cardiology, Department of Veterinary Medicine, Federal University of Paraná (UFPR), Rua dos Funcionários 1540, Curitiba, 80035-050, Brazil. Electronic address: marcelawvet@gmail.com., Lucina SB; Laboratory of Comparative Cardiology, Department of Veterinary Medicine, Federal University of Paraná (UFPR), Rua dos Funcionários 1540, Curitiba, 80035-050, Brazil., Silva VBC; Laboratory of Comparative Cardiology, Department of Veterinary Medicine, Federal University of Paraná (UFPR), Rua dos Funcionários 1540, Curitiba, 80035-050, Brazil., Tuleski GLR; Laboratory of Comparative Cardiology, Department of Veterinary Medicine, Federal University of Paraná (UFPR), Rua dos Funcionários 1540, Curitiba, 80035-050, Brazil., Sarraff AP; School of Life Sciences, Pontifical Catholic University of Paraná (PUC-PR), Rua Rockfeller 1311, Curitiba, 80230-130, Brazil., Komatsu EY; Laboratory of Comparative Cardiology, Department of Veterinary Medicine, Federal University of Paraná (UFPR), Rua dos Funcionários 1540, Curitiba, 80035-050, Brazil., Sousa MG; Laboratory of Comparative Cardiology, Department of Veterinary Medicine, Federal University of Paraná (UFPR), Rua dos Funcionários 1540, Curitiba, 80035-050, Brazil.
Jazyk: angličtina
Zdroj: Journal of veterinary cardiology : the official journal of the European Society of Veterinary Cardiology [J Vet Cardiol] 2021 Dec; Vol. 38, pp. 44-58. Date of Electronic Publication: 2021 Oct 22.
DOI: 10.1016/j.jvc.2021.10.004
Abstrakt: Introduction: Although degenerative mitral valve disease (DMVD) is essentially a disorder of the valve, the progression of the disease leads to structural myocardial changes that may compromise left ventricular systolic function. Tissue motion annular displacement (TMAD) is a surrogate for longitudinal fiber function based on speckle tracking assessment of the movement of the mitral annulus toward the apex during systole. The aim of this study was to evaluate longitudinal systolic function with TMAD in dogs with DMVD.
Animals: Ninety-four dogs with DMVD and 32 healthy dogs.
Methods: 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.
Results: The global TMAD mm and global TMAD % were higher in American College of Veterinary Internal Medicine B2 animals than in the stage CD. Global TMAD (mm/kg , mm/ bodyweight3, mm/m 2 ) were correlated with GLS and ejection fraction. Global TMAD (mm/kg , mm/m 2 ,%) and GLS were influenced by sex. In addition, systolic blood pressure influenced GLS (P < 0.01; r = -0.23), global TMAD mm/kg (P = 0.017; r = -0.21) and global TMAD mm/m 2 (P = 0.031; r = -0.19). Tissue motion annular displacement was fast to be performed and produced good repeatability in dogs with DMVD.
Conclusions: Global TMAD (mm,%), 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.
Competing Interests: Conflicts of Interest Statement The authors do not have any conflicts of interest to disclose.
(Copyright © 2021 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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