What question did this study set out to answer?

This research aims to identify factors that predict mortality and reinfarction in patients with non-Q wave myocardial infarction.

November 1, 1989CirculationOpen Access

Risk stratification of patients with non-Q wave myocardial infarction. The critical role of ST segment depression. The Diltiazem Reinfarction Study Research Group.

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Why the study?

Does persistent ST depression predict mortality and late reinfarction in patients surviving non-Q wave myocardial infarction?

Key Points

This research aims to identify factors that predict mortality and reinfarction in patients with non-Q wave myocardial infarction.
Analyzed one-year follow-up data on 515 patients with non-Q wave myocardial infarction.
Used Cox regression to identify independent predictors of mortality and reinfarction.
Evaluated 24 clinical and electrocardiographic variables for their predictive value.
Mortality rates were 5.5% with no ST depression, 10.1% with ST depression, and 22.2% with persistent ST depression.
Persistent ST depression increased the age-adjusted risk of mortality almost 14 times compared to patients without it.
Identified independent predictors for reinfarction included persistent ST depression and left ventricular hypertrophy.

Structured PICO

Does persistent ST depression predict mortality and late reinfarction in patients surviving non-Q wave myocardial infarction?

Population

515 patients who survived hospitalization with MB-creatine kinase-confirmed, acute non-Q wave myocardial infarction

Intervention

Presence of persistent ST depression (ST depression at baseline and discharge)

Comparator

Absence of ST depression

Outcome

Mortality and late reinfarction at 1-year follow-uphard clinical

Persistent ST depression is a highly significant and independent predictor of 1-year mortality and late reinfarction in patients surviving non-Q wave myocardial infarction, identifying a high-risk subset that may benefit from aggressive therapy.

Discussion

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Implication

Persistent ST depression identifies high-risk non-Q-wave MI survivors; hypothesis-generating for targeted interventions pending prospective trials.

Cite This Study

Schechtman et al. (1989) studied this question.

synapsesocial.com/papers/6a20cbb1905b6b11b013e616 https://doi.org/10.1161/01.cir.80.5.1148

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Implication

Persistent ST depression identifies high-risk non-Q-wave MI survivors; hypothesis-generating for targeted interventions pending prospective trials.

Risk stratification of patients with non-Q wave myocardial infarction. The critical role of ST segment depression. The Diltiazem Reinfarction Study Research Group.

Key Points

Structured PICO

Discussion

Implication

Cite This Study

Risk stratification of patients with non-Q wave myocardial infarction. The critical role of ST segment depression. The Diltiazem Reinfarction Study Research Group.

Key Points

Structured PICO

Discussion

Implication

Cite This Study

Also Consider

Also Consider