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Year 2012 - Volume 32, Number 12
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Strain and strain rate by two- dimensional speckle tracking echocardiography in a maned wolf, 32(12):1336-1340
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ABSTRACT.- Mantovani M.M., Silva A.C., Muzzi R.A.L., Oberlender G., Resende R.M., Muzzi L.A.L., Lacreta Junior A.C.C. & Nogueira R.B. 2012. Strain and strain rate by two-
dimensional speckle tracking echocardiography in a maned wolf. Pesquisa Veterinária Brasileira 32(12):1336-1340. Setor de Clínica Médica de Pequenos Animais, Serviço de Cardiologia Veterinária, Departamento de Medicina Veterinária, Universidade Federal de Lavras, Campus Universitário s/n, Caixa Postal 3037, Lavras, MG 37200-000, Brazil. E-mail: adrianagudi@gmail.com
The measurement of cardiovascular features of wild animals is important, as is the measurement in pets, for the assessment of myocardial function and the early detection of cardiac abnormalities, which could progress to heart failure. Speckle tracking echocardiography (2D STE) is a new tool that has been used in veterinary medicine, which demonstrates several advantages, such as angle independence and the possibility to provide the early diagnosis of myocardial alterations. The aim of this study was to evaluate the left myocardial function in a maned wolf by 2D STE. Thus, the longitudinal, circumferential and radial strain and strain rate were obtained, as well as, the radial and longitudinal velocity and displacement values, from the right parasternal long axis four-chamber view, the left parasternal apical four chamber view and the parasternal short axis at the level of the papillary muscles. The results of the longitudinal variables were -13.52±7.88, -1.60±1.05, 4.34±2.52 and 3.86±3.04 for strain (%), strain rate (1/s), displacement (mm) and velocity (cm/s), respectively. In addition, the radial and circumferential Strain and Strain rate were 24.39±14.23, 1.86±0.95 and -13.69±6.53, -1.01±0.48, respectively. Thus, the present study provides the first data regarding the use of this tool in maned wolves, allowing a more complete quantification of myocardial function in this species. |
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