Introduction and objectives: Patients admitted to chest pain units are usually classified on the basis of the results of non-invasive tests. However, the large number of potential patients places a strain on limited resources. Our aim was to identify clinical variables that may help determining the risk of coronary artery disease.
Patients and method: We studied 365 consecutive patients admitted to the chest pain unit at our institution, all of whom had an ECG that did not show significant changes in repolarization.
Results: The patients' mean age was 62.3 years. Independent predictors of coronary artery disease were: typical chest pain, aspirin use, diabetes, and age >64 years. A risk score obtained by combining these 4 factors was related to the occurrence of a clinical event during the patient's stay in the chest pain unit, to coronary artery disease prevalence (which varied from 3.9% in those with a score of 0 to 66.7% in those with a score of 4), to all-cause mortality, and to the development of acute coronary syndrome during the 6-month follow-up period.
Conclusions: The presence of typical chest pain, aspirin use, diabetes, and an age >64 years is associated with an increased probability of coronary artery disease in patients admitted to chest pain units. A risk score obtained by combining these four factors may be clinically useful and help optimizing resource management.