Key result
Familial myocardial disease presented with a wide spectrum of abnormalities ranging from no obstruction to marked narrowing, with older patients more likely to have outflow tract obstruction.
Observational (n=33)
In familial myocardial disease, left ventricular outflow tract obstruction may develop over time as a function of disease duration rather than being a distinct condition.
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Suggests possible progression to obstruction with disease duration in familial cases; hypothesis-generating for longitudinal cohorts.
Nasser et al. (1967) conducted an observational in Familial Myocardial Disease (n=33). Familial myocardial disease was evaluated on Hemodynamic and cineangiocardiographic abnormalities. Familial myocardial disease presented with a wide spectrum of abnormalities ranging from no obstruction to marked narrowing, with older patients more likely to have outflow tract obstruction.
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