Stephen P J Macdonald1, Yusuf Nagree. 1. Emergency Department, Armadale Health Service, Armadale, Western Australia, Australia. stephen.macdonald@health.wa.gov.au
Abstract
OBJECTIVE: To determine the feasibility of using a biomarker panel of myoglobin, creatinine kinase MB (CK-MB) and cardiac troponin I (cTnI) to identify patients with suspected acute coronary syndrome (ACS) who are suitable for discharge within 2 h. METHODS: We took blood at presentation and at 2 h from patients with suspected ACS and non-diagnostic electrocardiogram who were admitted to the ED short stay ward for serial electrocardiogram and troponin testing. We used a point-of-care device that gives rapid estimation of myoglobin, CK-MB and cTnI (Triage cardiac panel). These results were compared with the results of our standard hospital cardiac troponin T assay. Patients were followed up by telephone at 30 days. RESULTS: The study group comprised 100 patients (61 men) with mean age of 58 years. Six had a troponin-positive ACS during their ED stay. One additional patient died of a myocardial infarction within the follow-up period. The Triage panel at 2 h after presentation predicted 12-h cardiac troponin T elevation (sensitivity 100%, negative predictive value 99%) and 30-day events (sensitivity 86%, negative predictive value 97%). The majority of patients were ultimately suitable for discharge. CONCLUSION: Serial myoglobin, CK-MB and cTnI have the potential to identify patients who are suitable for early discharge and outpatient work-up. A large multicentre study is required.
OBJECTIVE: To determine the feasibility of using a biomarker panel of myoglobin, creatinine kinase MB (CK-MB) and cardiac troponin I (cTnI) to identify patients with suspected acute coronary syndrome (ACS) who are suitable for discharge within 2 h. METHODS: We took blood at presentation and at 2 h from patients with suspected ACS and non-diagnostic electrocardiogram who were admitted to the ED short stay ward for serial electrocardiogram and troponin testing. We used a point-of-care device that gives rapid estimation of myoglobin, CK-MB and cTnI (Triage cardiac panel). These results were compared with the results of our standard hospital cardiac troponin T assay. Patients were followed up by telephone at 30 days. RESULTS: The study group comprised 100 patients (61 men) with mean age of 58 years. Six had a troponin-positive ACS during their ED stay. One additional patient died of a myocardial infarction within the follow-up period. The Triage panel at 2 h after presentation predicted 12-h cardiac troponin T elevation (sensitivity 100%, negative predictive value 99%) and 30-day events (sensitivity 86%, negative predictive value 97%). The majority of patients were ultimately suitable for discharge. CONCLUSION: Serial myoglobin, CK-MB and cTnI have the potential to identify patients who are suitable for early discharge and outpatient work-up. A large multicentre study is required.
Authors: Gerald J Kost; Laurie E Kost; Audhaiwan Suwanyangyuen; Simrin K Cheema; Corbin Curtis; Stephanie Sumner; Jimmy Yu; Richard Louie Journal: Point Care Date: 2010-06
Authors: Bailin Zhang; Juan Manuel Tamez-Vela; Steven Solis; Gilbert Bustamante; Ralph Peterson; Shafiqur Rahman; Andres Morales; Liang Tang; Jing Yong Ye Journal: J Med Eng Date: 2013-06-02