To assess subclinical cardiac function impairment in Duchenne dystrophy (DMD) female carriers. Forty-four female subjects proved as DMD carriers underwent echocardiographic examination including tissue Doppler imaging (TDI) of mitral and tricuspid annulus. Seventeen age-matched healthy female subjects served as controls. A significant differences in peak systolic annular velocity (Sa) between carriers and controls were found for lateral and septal part of the mitral annulus and for tricuspid annulus (0.09 vs. 0.11 m/s, p < 0.001, 0.08 vs. 0.09 m/s, p < 0.01 and 0.13 vs. 0.14 m/s, p = 0.02 respectively). There was also difference in early diastolic velocity (Ea) of the septal part of the mitral annulus (0.11 vs. 0.13 m/s, p = 0.03). The subclinical deterioration of systolic function is presented even in asymptomatic DMD female carriers.
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| http://dx.doi.org/10.1038/s41598-020-77882-6 | DOI Listing |
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