Luchner, Andreas, Möckel, Martin, Spanuth, Eberhard, Möcks, Joachim, Peetz, Dirk, Baum, Hannsjörg, Spes, Christoph, Wrede, Christian E., Vollert, Jörn, Müller, Reinhold, Katus, Hugo, and Giannitsis, Evangelos (2012) N-terminal pro brain natriuretic peptide in the management of patients in the medical emergency department (PROMPT): correlation with disease severity, utilization of hospital resources, and prognosis in a large, prospective, randomized multicentre trial. European Journal of Heart Failure, 14 (3). pp. 259-267.

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Abstract

Aims: N-terminal pro brain natriuretic peptide (NT-proBNP) is a potent marker of heart failure and other cardiac diseases. The value of NT-proBNP testing in the medical emergency department (ED) was assessed in patients >65 years old.

Methods and results: This large, prospective, randomized, controlled, multicentre trial was conducted in six medical EDs. Data for evaluation of the primary endpoint of hospitalization were available for 1086 patients. Median NT-proBNP was 582 pg/mL. A total of 16% of patients presented with NT-proBNP <150 pg/mL (low), 55% with NT-proBNP between 150 and 1800 pg/mL (intermediate), and 29% with NT-proBNP >1800 pg/mL (high). NT-proBNP was positively correlated with hospital admission [ odds ratio (OR) for high vs. low 2.9, P < 0.0001], length of stay (8.5 days vs. 3.5 days for high vs. low, P < 0.01), in-hospital death (3.9% vs. 0% for high vs. low, P < 0.01), 6 months re-hospitalization (OR for high vs. low 5.1, P < 0.0001), and 6 months death or re-hospitalization (OR for high vs. low 5.7, P < 0.0001). Knowledge of NT-proBNP had no significant effect on the primary endpoint hospital admission and the secondary endpoints intermediate/intensive care unit (IMC/ICU) admission, length of stay, re-hospitalization and death, or re-hospitalization in the total cohort. However, patients with high open NT-proBNP (>1800 pg/mL) were more likely to be admitted to the hospital (P < 0.05) and IMC/ICU (P < 0.05), whereas patients with low open NT-proBNP (<150 pg/mL) were less likely to be admitted (P < 0.05) compared with patients with blinded NT-proBNP.

Conclusion: Although NT-proBNP does not affect overall hospitalization, it is associated with better stratification of patient care and is strongly correlated with subsequent utilization of hospital resources and prognosis.

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