What question did this study set out to answer?

To evaluate whether treating patients with acute myocardial infarction in a specialized coronary-care unit reduces mortality compared to conventional care in general medical wards.

January 12, 1971Acta Medica Scandinavica

Benefits Obtained by the Introduction of a Coronary‐care Unit

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Why the study?

Does admission to a dedicated coronary-care unit reduce mortality in patients with acute myocardial infarction compared to general medical wards?

Population

415 patients with confirmed acute myocardial infarction (from an initial cohort of 812 suspected cases)

Comparison

Admission to a coronary-care unit with… vs Admission to departments of general medicine…

Design

Cohort

Authors

ICIb ChristiansenHvidovre Hospital KIKurt IversenHerlev Hospital ASArne P. SkoubyCopenhagen Municipal Hospital

Discussion

Member takes

Implication

CCU admission was associated with lower AMI mortality; leaves open whether benefit is causal or confounded.

Key Points

To evaluate whether treating patients with acute myocardial infarction in a specialized coronary-care unit reduces mortality compared to conventional care in general medical wards.
Conducted a prospective comparative study from November 24, 1967, to December 31, 1968, in a single hospital setting.
Admitted suspected acute myocardial infarction patients to a four-bed coronary-care unit if a monitored bed was vacant (N=328) or to two general medicine departments when beds were occupied (N=484).
Confirmed acute myocardial infarction in 171 patients in the coronary-care unit group and 244 patients in the general medicine control group using standardized criteria.
Overall mortality among confirmed acute myocardial infarction cases was 17.6% in the coronary-care unit group compared with 41.4% in the general medicine control group.
Mortality was consistently lower in the coronary-care unit across all age groups, despite a higher baseline prevalence of obesity, congestive heart failure, and anterior-wall infarctions in that group.

Structured PICO

Does admission to a dedicated coronary-care unit reduce mortality in patients with acute myocardial infarction compared to general medical wards?

Population

415 patients with confirmed acute myocardial infarction (from an initial cohort of 812 suspected cases)

Intervention

Admission to a coronary-care unit with monitoring apparatus, intensive observation, and early detection and treatment of arrhythmias

Comparator

Admission to departments of general medicine within the same hospital

Outcome

Overall mortalityhard clinical

Treatment of acute myocardial infarction in a dedicated coronary-care unit substantially reduces mortality compared to care in general medical wards.

Limitations

Baseline imbalances between groups (preponderance of obesity, congestive heart failure, short duration of symptoms, and anterior-wall infarctions in the CCU group)

Cite This Study

Christiansen et al. (1971) studied this question.

synapsesocial.com/papers/6a128d2a8edbaba0bf678027 https://doi.org/10.1111/j.0954-6820.1971.tb04377.x

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Benefits Obtained by the Introduction of a Coronary‐care Unit

Discussion

Member takes

Implication

Key Points

Structured PICO

Limitations

Cite This Study

Benefits Obtained by the Introduction of a Coronary‐care Unit

Discussion

Member takes

Implication

Key Points

Structured PICO

Limitations

Cite This Study

Also Consider

Also Consider