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The utility of B-type natriuretic peptide in predicting postoperative cardiac events and mortality in patients undergoing major emergency non-cardiac surgery

By Brian Cuthbertson, Gemma Card, Bernard L. Croal, Jane McNeilly and Graham Hillis

Abstract

B-type natriuretic peptide (BNP) levels predict cardiovascular risk in several settings. We hypothesized that they would identify individuals at increased risk of complications and mortality following major emergency non-cardiac surgery.Forty patients were studied with a primary end-point of a new post-operative cardiac event, and/or development of significant ECG changes, and/or cardiac death. The main secondary outcome was all cause mortality at 6 months. Preoperative BNP levels were higher in 11 patients who suffered a new postoperative cardiac event (p=0.001) and predicted this outcome with an area under the receiver operating characteristic curve of 0.85 (CI=0.72-0.98,p=0.001). A pre-operative BNP value >170pg.ml-1 has a sensitivity of 82% and a specificity of 79% for the primary end-point. In this small study, pre-operative BNP levels identify patients undergoing major emergency non-cardiac surgery who are at increased risk of early post-operative cardiac events. Larger studies are required to confirm these data.Peer reviewedPreprin

Topics: B-type natriuretic peptide, non-cardiac surgery, emergency surgery, risk stratification, RD Surgery
Publisher: Blackwell
Year: 2007
DOI identifier: 10.1111/j.1365-2044.2007.05146.x
OAI identifier: oai:aura.abdn.ac.uk:2164/263
Journal:

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