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J. Am. Coll. Cardiol. · May 2010
Controlled Clinical TrialElevated heart-type fatty acid-binding protein levels on admission predict an adverse outcome in normotensive patients with acute pulmonary embolism.
- Claudia Dellas, Miriam Puls, Mareike Lankeit, Katrin Schäfer, Mayumi Cuny, Maik Berner, Gerd Hasenfuss, and Stavros Konstantinides.
- Department of Cardiology and Pulmonology, Georg August University of Goettingen, Goettingen, Germany.
- J. Am. Coll. Cardiol. 2010 May 11;55(19):2150-7.
ObjectivesWe assessed the predictive value of heart-type fatty acid-binding protein (H-FABP) in normotensive patients with acute pulmonary embolism (PE).BackgroundRisk stratification of initially normotensive patients with PE on the basis of right ventricular dysfunction or injury remains controversial. Previous studies investigating biomarkers or imaging modalities included unselected patients, some of whom presented with cardiogenic shock.MethodsWe included 126 consecutive normotensive patients with confirmed PE. Complicated 30-day outcome was defined as death, resuscitation, intubation, or use of catecholamines. Long-term survival was assessed by follow-up clinical examination.ResultsDuring the first 30 days, 9 (7%) patients suffered complications. These patients had higher baseline H-FABP values (median, 11.2 ng/ml [interquartile range: 8.0 to 36.8 ng/ml]) compared with patients with an uncomplicated course (3.4 ng/ml [2.1 to 4.9 ng/ml]; p < 0.001). H-FABP values were above the calculated (by receiver operating characteristic curve analysis) cutoff value of 6 ng/ml in 29 patients. Eight (28%) of them suffered complications versus 1 of 97 patients with low H-FABP (negative predictive value, 99%; p < 0.001). By logistic regression, elevated (> or =6 ng/ml) H-FABP was associated with a 36.6-fold increase in the death or complication risk. The combination of H-FABP with tachycardia was a particularly useful prognostic indicator. H-FABP also predicted long-term mortality over 499 (interquartile range: 204 to 1,166) days (hazard ratio: 3.6; 95% confidence interval: 1.6 to 8.2; p = 0.003).ConclusionsThe H-FABP might be a useful biomarker for risk stratification of normotensive patients with acute PE.Copyright 2010 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.
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