PMID- 10958863 OWN - NLM STAT- MEDLINE DCOM- 20001010 LR - 20190706 IS - 0009-8981 (Print) IS - 0009-8981 (Linking) VI - 300 IP - 1-2 DP - 2000 Oct TI - CK-MB isoforms for early risk stratification of emergency department patients. PG - 57-73 AB - The potential clinical utility of single sample CK-MB isoforms measurement for early risk stratification of Emergency Department (ED) patients with possible myocardial ischemia was evaluated among 405 patients presenting to two urban EDs. Clinical and serologic data were prospectively collected and the occurrence of adverse events (AEs) and myocardial infarction (MI) during the 14-day outcome period was recorded and utilized to calculate and compare relative risks (RR) and predictive values of isoforms and CK-MB alone. Among the 405 patients, 67 accrued 105 AEs. Both isoforms and CK-MB alone were predictive of AEs with RR of 3.32 (2.09, 5.27) and 6.28 (4.64, 8.52), respectively. Isoforms had higher sensitivity for AEs compared to CK-MB (65.7% [54.3, 77.0] vs. 14.9% [6.4, 23.5]; p<0. 01) but lower specificity (69.2% [64.3, 74.2] vs. 99.7% [99.1,100. 0]; p<0.01). Isoforms' superior sensitivity allowed identification of many high risk patients missed by CK-MB alone. Further, for the prediction of MI, isoforms had superior diagnostic sensitivity and equivalent specificity. This investigation supports the emergency department use of early, single sample CK-MB isoform testing. FAU - Green, G B AU - Green GB AD - Department of Emergency Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, USA. ggreen@jhmi.edu FAU - Dehlinger, E AU - Dehlinger E FAU - McGrievey, T S AU - McGrievey TS FAU - Li, D J AU - Li DJ FAU - Jones, K A AU - Jones KA FAU - Kelen, G D AU - Kelen GD FAU - Chan, D W AU - Chan DW LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Netherlands TA - Clin Chim Acta JT - Clinica chimica acta; international journal of clinical chemistry JID - 1302422 RN - 0 (Isoenzymes) RN - EC 2.7.3.2 (Creatine Kinase) SB - IM MH - Adult MH - Aged MH - Algorithms MH - Creatine Kinase/*blood MH - *Emergency Service, Hospital MH - Female MH - Humans MH - Isoenzymes MH - Male MH - Middle Aged MH - Myocardial Ischemia/diagnosis/enzymology MH - Prospective Studies MH - Sensitivity and Specificity MH - Triage/*methods EDAT- 2000/08/26 11:00 MHDA- 2000/10/14 11:01 CRDT- 2000/08/26 11:00 PHST- 2000/08/26 11:00 [pubmed] PHST- 2000/10/14 11:01 [medline] PHST- 2000/08/26 11:00 [entrez] AID - S0009-8981(00)90295-X [pii] AID - 10.1016/s0009-8981(00)90295-x [doi] PST - ppublish SO - Clin Chim Acta. 2000 Oct;300(1-2):57-73. doi: 10.1016/s0009-8981(00)90295-x.