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The echocardiographic abnormalities identified included an increased LVIDd in 3 individuals (2 from the same family) and a reduced LVEF in 1 individual.
In the present study, HCM affected dogs had no statistically significant difference in LVIDd and LVIDs as compared to normal dogs of the same body weight.
Abbreviations BW: Body weight WHW: Whole heart weight LVW: Left ventricle weight IVSD: Interventricular septal thickness at end-diastole LVIDd: Left ventricular internal dimension at end-diastole LVPWd: Left ventricular posterior wall thickness at end-diastole LVIDs: Left ventricular internal dimension at end-systole.
Meanwhile, left ventricular diastolic and systolic internal diameters (LVIDd and LVIDs) were increased only at 8 weeks (Figures 1(c) and 1(d)).
Early improvement in EF, FS, LVIDd and left ventricular internal dimension at systole (LVISd) (i.e, within the first 3-6 months) indicates good outcome.
Also, 2D guided M-mode echocardiograms at the level of the mitral valve tips were used to estimate the LV internal diameter end-diastolic (LVIDd) and the LV internal diameter end-systolic (LVIDs) in the long-axis plane.
Measurements were obtained for aortic root diameter (ARD), left atrial diameter (LAD), LV internal diameter in diastole (LVIDD), posterior wall thickness in diastole (PWTD), and interventricular septum thickness in diastole (IVSTD).
Results: The mean LVIDd was 54.631.79 mm, IVST 9.860.89 mm, PWTd 8.630.73 mm, and LVM 196.3622.86 gm in athletes and 40.632.08, 8.520.37, 8.040.32, 102.511.01 in controls respectively.
The following parameters were recorded: left ventricular systolic and end diastolic internal dimensions (LVIDs, LVIDd), thickness of interventricular septum (IVS), fractional shortening at systole and diastole (FSs, FSd), and ejection fraction (EF) .
Left ventricular end-diastolic inner-dimension (LVIDd), diastolic left ventricular posterior/anterior wall thickness (LVPWd/LVAWd), and the corresponding systolic parameters of LVIDs and LVPWs/LVAWs were measured.
Echocardiography was performed for each subject and parameters were selected for analysis: LVEF (%)--left-ventricular ejection fraction, LVIDd (cm)--left-ventricular internal diameter at end diastole, and LA (cm)--left atrium.
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- Lviv Business School
- Lviv Oblast
- LVIV Party Fotos
- LVIV Radio Engineering Research Institute
- Lviv Regional Astrology Association
- Lviv State Agrarian University
- Lviv, Ukraine