Echocardiographic Predictors of Heart Failure in Myocardial Infarction
Author Information
Author(s): Lilian P Souza, Orlando Campos, Clovis A Peres, Cristiano V Machado, Antonio C Carvalho
Primary Institution: Escola Paulista de Medicina, Federal University of Sao Paulo, UNIFESP, Brazil
Hypothesis
Can myocardial performance index and left atrial volume improve diagnosis of early heart failure over conventional parameters of left ventricular function?
Conclusion
Left ventricular ejection fraction is a strong predictor of early heart failure in patients with first ST-elevation myocardial infarction.
Supporting Evidence
- 31% of patients developed early in-hospital CHF.
- LVEF ≤ 0.45 was the single independent predictor of early CHF.
- MPI alone could not predict CHF in first ST-elevation AMI patients.
Takeaway
Doctors can tell if a heart is in trouble after a heart attack by looking at how well it pumps blood, especially if it pumps less than half of the blood it should.
Methodology
Echocardiography was performed within 30 hours of chest pain in 95 patients with first ST-elevation AMI, and multivariate regression analysis was used to identify predictors of in-hospital CHF.
Limitations
The study did not include E/e' velocities ratio, which could be a valuable prognostic index.
Participant Demographics
Mean age 58 years, 64 males.
Statistical Information
P-Value
p<0.0001
Confidence Interval
[95% CI 4.1 - 70.8]
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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