What question did this study set out to answer?

To assess how well early low-dose dobutamine echocardiography predicts recovery in left ventricular ejection fraction after acute myocardial infarction and evaluate the measurement reproducibility of biplane Simpson's echocardiography.

November 14, 2002HeartOpen Access

Measuring left ventricular volume and ejection fraction with the biplane Simpson’s method

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Why the study?

Does low dose dobutamine echocardiography predict later improvement in left ventricular ejection fraction after an acute myocardial infarction?

Population

107 patients with acute myocardial infarction (AMI)

Design

Editorial

Follow-up

3 months

Authors

JOJ. E. OtterstadCardiac Imaging

Discussion

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Implication

This editorial highlights the prognostic value of low-dose dobutamine echocardiography for predicting LVEF recovery post-AMI, while emphasizing the need for reproducible echocardiographic measurements.

Key Points

To assess how well early low-dose dobutamine echocardiography predicts recovery in left ventricular ejection fraction after acute myocardial infarction and evaluate the measurement reproducibility of biplane Simpson's echocardiography.
Evaluated 107 patients following acute myocardial infarction using low-dose dobutamine echocardiography to identify viable myocardial tissue.
Defined functional improvement as an increase in left ventricular ejection fraction of ≥ 5% at three months follow-up.
Analyzed the reproducibility and observer variability of two-dimensional biplane Simpson's volume measurements.
Improvement in left ventricular ejection fraction occurred in 21 of 107 patients (20%).
Presence of myocardial viability in ≥ 2 segments predicted functional improvement with a sensitivity of 81% and a specificity of 65%.
Stress echocardiography was the strongest predictor of recovery over non-Q wave and anterior infarction, but accurate interpretation requires reliable measurement reproducibility.

Structured PICO

Does low dose dobutamine echocardiography predict later improvement in left ventricular ejection fraction after an acute myocardial infarction?

Population

107 patients with acute myocardial infarction (AMI)

Intervention

Low dose dobutamine echocardiography at an early stage

Outcome

Improvement in left ventricular ejection fraction (LVEF) defined as ≥ 5% increasesurrogate

Cite This Study

J. E. Otterstad (2002) studied this question.

synapsesocial.com/papers/6a709d8c26a7f98052dd170e https://doi.org/10.1136/heart.88.6.559

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Measuring left ventricular volume and ejection fraction with the biplane Simpson’s method

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Measuring left ventricular volume and ejection fraction with the biplane Simpson’s method

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

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