A modified HEART risk score in chest pain patients with suspected non-ST-segment elevation acute coronary syndrome / 老年心脏病学杂志（英文版）

ABSTRACT

ObjectiveTo validate a modified HEART [History, Electrocardiograph (ECG), Age, Risk factors and Troponin] risk score in chest pain patients with suspected non-ST-segment elevation acute coronary syndrome (NSTE-ACS) in the emergency department (ED).Methods This retrospective cohort study used a prospectively acquired database and chest pain patients admitted to the emergency department with suspected NSTE-ACS were enrolled. Data recorded on arrival at the ED were used. The serum sample of high-sensitivity cardiac Troponin I other than conventional cardiac Troponin I used in the HEART risk score was tested. The modified HEART risk score was calculated. The end point was the occurrence of major adverse cardiac events (MACE) defined as a composite of acute myocardial infarction (AMI), percu-taneous intervention (PCI), coronary artery bypass graft (CABG), or all-cause death, within three months after initial presentation.Results A total of 1,300 patients were enrolled. A total of 606 patients (46.6%) had a MACE within three months 205 patients (15.8%) were diag-nosed with AMI, 465 patients (35.8%) underwent PCI, and 119 patients (9.2%) underwent CABG. There were 10 (0.8%) deaths. A progres-sive, significant pattern of increasing event rate was observed as the score increased (P < 0.001 byχ2 for trend). The area under the receiver operating characteristic curve was 0.84. All patients were classified into three groups low risk (score 0–2), intermediate risk (score 3–4), and high risk (score 5–10). Event rates were 1.1%, 18.5%, and 67.0%, respectively (P < 0.001).ConclusionsThe modified HEART risk score was validated in chest pain patients with suspected NSTE-ACS and may complement MACE risk assessment and patients triage in the ED. A prospective study of the score is warranted.