Key result
Left ventricular ejection fraction and tenting area were found to be independent predictors of the severity of mitral regurgitation in the acute phase of inferior wall myocardial infarction (r2=0.180, P=0.001).
Observational (n=97)
No
Effect estimate: r2=0.180
p-value: p=0.001
In the acute phase of inferior wall myocardial infarction, mitral regurgitation is primarily driven by reduced closing force due to left ventricular systolic dysfunction in the presence of leaflet tethering, rather than local remodeling.
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May aid early risk stratification in acute inferior MI; leaves open prospective validation and therapeutic targeting.
Hong et al. (2011) conducted an observational in Acute inferior wall myocardial infarction (n=97). Left ventricular systolic dysfunction and leaflet tethering vs. Normal left ventricular function and no tethering was evaluated on Severity of mitral regurgitation (r2=0.180, p=0.001). Left ventricular ejection fraction and tenting area were found to be independent predictors of the severity of mitral regurgitation in the acute phase of inferior wall myocardial infarction (r2=0.180, P=0.001).
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