Nurse-led Early Triage (NET) study of chest pain patients: a long term evaluation study of a service development aimed at improving the management of patients with non-ST-elevation acute coronary syndromes

BACKGROUND: Patients presenting with non-ST-elevation acute coronary syndrome (NSTE-ACS) are at risk of early death. This may be reduced by timely assessment and treatment. OBJECTIVES: The purpose of this study was to evaluate if Nurse-led Early Triage (NET) in the coronary care unit (CCU) can improve time to assessment and management of NSTE-ACS patients. METHODS: Data on 79 consecutive chest pain patients admitted pre-NET to the acute admissions unit (AAU) and on 103 patients admitted in the first six months of the NET service in CCU, was re-examined and compared to subsequent data obtained on 92 patients admitted via NET five years later, in order to re-evaluate the service. RESULTS: NET resulted in significant improvements in: the number of patients with chest pain who had their 12-lead electrocardiogram (ECG) performed within 10 min of admission (94% vs 32%, p<0.001); the number of high-risk NSTE-ACS patients prescribed clopidogrel (72% vs 42%, p<0.01); and the number being managed in CCU (82% vs 34%, p<0.01). Comparison of the NET service at five years with the pre-NET service demonstrated measurable benefits were sustained (p<0.01) for the same comparative end points. There were no significant differences in these end-points of time to ECG, clopidogrel prescription nor management in CCU for high-risk patients between the NET groups at six months and five years, demonstrating that current triage is as effective as when first introduced. CONCLUSIONS: This study demonstrated the positive impact of nurse-led early triage for NSTE-ACS patients and that initial benefits have been sustained.