• Tobias Breidthardt, Markus Noveanu, Sevgi Cayir, Martina Viglino, Kirsten Laule, Willibald Hochholzer, Tobias Reichlin, Mihael Potocki, Michael Christ, and Christian Mueller.
• Department of Internal Medicine, University of Basel, University Hospital, Switzerland.
• Int. J. Cardiol. 2009 Aug 14;136(2):193-9.

AbstractThe utility of B-type natriuretic peptide (BNP) testing in patients with atrial fibrillation (AF) is poorly defined. We analyzed patients (n=452) included in the BNP for Acute Shortness of Breath Evaluation (BASEL) study. Patients were randomly assigned to a diagnostic strategy with or without the use of BNP. Ninety-nine patients presented with AF (n=48 BNP group; n=51 control group). Although comparable with respect to gender and cardiopulmonary comorbidity, patients with AF were older and more often had heart failure as the cause of dyspnea. In addition, patients with AF had higher in-hospital mortality (13% versus 6%, P=0.012). The use of BNP significantly reduced time to discharge (BNP group median 8 days [1-16] versus 12 days [IQR 4-21] control group; P=0.046) in patients with AF. Initial total treatment costs (median) were $4239 [769-7422] in the BNP group and $5940 [4024-10848] in the control group (P=0.041). These benefits were maintained after 90 days: patients in the BNP group had spent fewer days in hospital (10 days [2-21] versus 15 days [IQR 9-27]; P=0.022) and induced lower total treatment costs ($4790 [1260-9387] versus $7179 [4311-13173]; P=0.016). In conclusion, the use of BNP seems to improve the management of patients with AF presenting with dyspnea.

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