Abstract: ［Abstract］〓Objective〖HTSS〗〓To evaluate the prognostic value of the coronary artery calcium(CAC) score in patients with suspected cardiogenic chronic chest pain.
〖HTH〗〖WTHZ〗Methods〖HTSS〗〓A total of 101 consecutive patients with suspected cardiogenic chronic chest pain were enrolled from our hospital. The CAC score was calculated and patients were divided into a lower CAC score group(CAC score≤300) and a higher CAC score group(CAC score>300). Patients were followed up for one years to assess adverse events consisting of a combined end point of cardiac death, myocardial infarction, coronary revascularisation, and returning to hospital for acute coronary syndrome(ACS).
〖HTH〗〖WTHZ〗Results〖HTSS〗〓During the observation period no patients died or suffered from myocardial infarction and 13 patients returned to the hospital for ACS. Among them, 4 cases occurred in the group with CAC score ≤300, and 9 cases occurred in the group with CAC score>300. The proportion of diabete and total cholesterol level of group with CAC score >300 were higher than that of the group with CAC score≤300, and the difference was statistically significant(P＜005). The Cox regression analysis results showed that the CAC score was a risk factor for the noevent survival time(HR=4.616; 95%CI=1.046-20.377, P=0.043).
〖HTH〗〖WTHZ〗Conclusion〖HTSS〗〓CAC score>300 is a predictor of cardiac events for patients with suspected cardiogenic chronic chest pain.

Key words: chest pain, coronary artery calcification score, cardiovascular event