In the setting of acute myocardial infarction (AMI) reduced LV ejection fraction adversely influence evolutive prognosis and some parameters have been used to evaluate prognosis as degree of mitral regurgitation, E/e', LV wall motion score index and Left atrial enlargement. Some works have been demonstrated a close relation between DT < 140 ms and increasing mortality after AMI. I wonder to know how important it is to be used to stratify risk?
I think, its use solely to be used for risk stratification may be important but it may change some conditions.
But, myocardial performance index(Tei index) is a better parameter for this purpose.
I think that the evaluation of diastolic function cannot be performed on a single parameter. As such DT per se may have little value in the single patient, but it may have a significant value at group value. So I prefer to use a multiparametric approach, and speaking of diastolic function, patients post AMI with restrictive filling are those at the higher risk.
i think reproducability of DT will be a issue ..so it wont be a reliable parameter.
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