PMID- 16251228 OWN - NLM STAT- MEDLINE DCOM- 20060619 LR - 20181113 IS - 1468-201X (Electronic) IS - 1355-6037 (Print) IS - 1355-6037 (Linking) VI - 92 IP - 6 DP - 2006 Jun TI - Admission N-terminal pro-brain natriuretic peptide and its interaction with admission troponin T and ST segment resolution for early risk stratification in ST elevation myocardial infarction. PG - 735-40 AB - OBJECTIVE: To assess the long term prognostic value of N-terminal pro-brain natriuretic peptide (NT-proBNP) on admission and its prognostic interaction with both admission troponin T (TnT) concentrations and resolution of ST segment elevation in fibrinolytic treated ST elevation myocardial infarction (STEMI). DESIGN AND SETTING: Substudy of the ASSENT (assessment of the safety and efficacy of a new thrombolytic) -2 and ASSENT-PLUS trials. PATIENTS: NT-proBNP and TnT concentrations were determined on admission in 782 patients. According to NT-proBNP concentrations, patients were divided into three groups: normal concentration (for patients < or = 65 years, < or = 184 ng/l and < or = 268 ng/l and for those > 65 years, < or = 269 ng/l and < or = 391 ng/l in men and women, respectively); higher than normal but less than the median concentration (742 ng/l); and above the median concentration. For TnT, a cut off of 0.1 microg/l was used. Of the 782 patients, 456 had ST segment resolution (< 50% or > or = 50%) at 60 minutes calculated from ST monitoring. MAIN OUTCOME MEASURES: All cause one year mortality. RESULTS: One year mortality increased stepwise according to increasing concentrations of NT-proBNP (3.4%, 6.5%, and 23.5%, respectively, p < 0.001). In receiver operating characteristic analysis, NT-proBNP strongly trended to be associated more with mortality than TnT and time to 50% ST resolution (area under the curve 0.81, 95% confidence interval (CI) 0.72 to 0.9, 0.67, 95% CI 0.56 to 0.79, and 0.66, 95% CI 0.56 to 0.77, respectively). In a multivariable analysis adjusted for baseline risk factors and TnT, both raised NT-proBNP and ST resolution < 50% were independently associated with higher one year mortality, whereas raised TnT contributed independently only before information on ST resolution was added to the model. CONCLUSION: Admission NT-proBNP is a strong independent predictor of mortality and gives, together with 50% ST resolution at 60 minutes, important prognostic information even after adjustment for TnT and baseline characteristics in STEMI. FAU - Bjorklund, E AU - Bjorklund E AD - Department of Cardiology, University Hospital of Uppsala, Uppsala, Sweden. erik.bjorklund@akademiska.se FAU - Jernberg, T AU - Jernberg T FAU - Johanson, P AU - Johanson P FAU - Venge, P AU - Venge P FAU - Dellborg, M AU - Dellborg M FAU - Wallentin, L AU - Wallentin L FAU - Lindahl, B AU - Lindahl B CN - ASSENT-2 and ASSENT-PLUS Study Groups LA - eng PT - Journal Article PT - Multicenter Study PT - Research Support, Non-U.S. Gov't DEP - 20051026 PL - England TA - Heart JT - Heart (British Cardiac Society) JID - 9602087 RN - 0 (Peptide Fragments) RN - 0 (Troponin T) RN - 0 (pro-brain natriuretic peptide (1-76)) RN - 114471-18-0 (Natriuretic Peptide, Brain) SB - IM MH - Aged MH - Female MH - Humans MH - Male MH - Middle Aged MH - Myocardial Infarction/*blood/mortality MH - Natriuretic Peptide, Brain/*blood MH - Patient Admission MH - Peptide Fragments/*blood MH - Prognosis MH - Regression Analysis MH - Risk Assessment MH - Sensitivity and Specificity MH - Survival Analysis MH - Troponin T/*blood PMC - PMC1860646 COIS- Competing interests: None declared. EDAT- 2005/10/28 09:00 MHDA- 2006/06/20 09:00 PMCR- 2009/06/01 CRDT- 2005/10/28 09:00 PHST- 2005/10/28 09:00 [pubmed] PHST- 2006/06/20 09:00 [medline] PHST- 2005/10/28 09:00 [entrez] PHST- 2009/06/01 00:00 [pmc-release] AID - hrt.2005.072975 [pii] AID - ht72975 [pii] AID - 10.1136/hrt.2005.072975 [doi] PST - ppublish SO - Heart. 2006 Jun;92(6):735-40. doi: 10.1136/hrt.2005.072975. Epub 2005 Oct 26.