Key result
Acute MI alters Doppler transmitral flow patterns variably based on infarct size.
Why the study?
It is unclear whether myocardial infarction per se alters Doppler transmitral flow velocity patterns clinically.
Does acute myocardial infarction alter Doppler transmitral flow velocity patterns compared to pre-infarction baseline?
Population
13 patients with myocardial infarction with TMF patterns recorded before and after MI
Comparison
TMF patterns before MI vs after MI
Design
Observational cohort study
Follow-up
Mean 7 months before and after MI
Authors
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Post-MI transmitral flow patterns vary by infarct size; leaves open size-adjusted diastolic assessment in clinical practice and trials.
Observational (n=13)
Does acute myocardial infarction alter Doppler transmitral flow velocity patterns compared to pre-infarction baseline?
Myocardial infarction does not uniformly alter Doppler transmitral flow velocity patterns, and the size of the infarction is a key determinant of post-MI diastolic filling patterns.
Watada et al. (1995) conducted an observational in Acute Myocardial Infarction (n=13). Acute Myocardial Infarction vs. Pre-MI baseline was evaluated on Doppler transmitral flow velocity patterns (E and E/A ratio). Myocardial infarction does not uniformly alter Doppler transmitral flow velocity patterns, as post-MI changes appear to be determined by the size of the infarction.
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