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Wed, 17.07.24

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November 2003
J.E. Arbelle, A. Porath, E. Cohen, H. Gilutz and M. Garty, for the Israeli National Survey Group on Acute Myocardial Infarction, 2000

Background: In the emergency department the physician is often confronted with the decision of where to hospitalize a patient presenting with chest pain and a possible acute myocardial infarction – in the cardiac care unit or in the internal medicine ward.

Objective: To characterize the clinical factors involved in the triage disposition of patients hospitalized with AMI[1] in Israel to either CCUs[2] or IMWs[3] and to determine to what extent the perceived probability of ischemia influenced the disposition decision.

Methods: During a 2 month nationwide prospective survey in the 26 CCUs and 82 of the 94 IMWs in Israel, we reviewed the charts of 1,648 patients with a discharge diagnosis of AMI. The probability of ischemia at admission was determined retrospectively by the Acute Coronary Ischemia Time-Insensitive Predictive Instrument. Co-morbidity was coded using the Index of Coexistent Diseases.

Results: The ACI-TIPI[4] score for patients admitted to CCUs or to IMWs was 76.2% and 57.7% respectively (P < 0.001). Multivariate analysis showed that young patients with a high probability of ischemia and low co-morbidity or functional impairment were more likely to be hospitalized in CCUs than in IMWs.

Conclusion: In Israel, the factors that strongly influence the initial triage disposition of patients with AMI to CCUs or IMWs are age, perceived probability of ischemia, status of co-morbid conditions and functional impairment.

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[1] AMI = acute myocardial infarction

[2] CCU = cardiac care unit

[3] IMW = internal medicine ward

[4] ACI-TIPI = Acute Coronary Ischemia Time-Insensitive Predictive Instrument


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