Prognostic value of brain natriuretic peptide in acute pulmonary embolism

被引:71
作者
Coutance, Guillaume [1 ]
Le Page, Olivier [2 ]
Lo, Ted [1 ]
Hamon, Martial [1 ,3 ]
机构
[1] CHU Caen, UF Soins Intensifs Cardiol, Serv Malad Coeur & Vaisseaux, F-14033 Caen, Normandy, France
[2] CHU Caen, Serv Chirurg Cardiaque, F-14033 Caen, Normandy, France
[3] Inst Pasteur, Inserm 744, F-59019 Lille, France
来源
CRITICAL CARE | 2008年 / 12卷 / 04期
关键词
D O I
10.1186/cc6996
中图分类号
R4 [临床医学];
学科分类号
1002 ; 100602 ;
摘要
Introduction The relationship between brain natriuretic peptide (BNP) increase in acute pulmonary embolism ( PE) and the increase in mortality and morbidity has frequently been suggested in small studies but its global prognostic performance remains largely undefined. We performed a systematic review and meta-analysis of data to examine the prognostic value of elevated BNP for short-term all-cause mortality and serious adverse events. Methods The authors reviewed PubMed, BioMed Central, and the Cochrane database and conducted a manual review of article bibliographies. Using a prespecified search strategy, we included a study if it used BNP or N-terminal pro-BNP biomarkers as a diagnostic test in patients with documented PE and if it reported death, the primary endpoint of the meta-analysis, in relation to BNP testing. Studies were excluded if they were performed in patients without certitude of PE or in a subset of patients with cardiogenic shock. Twelve relevant studies involving a total of 868 patients with acute PE at baseline were included in the meta-analysis using a random-effects model. Results Elevated BNP levels were significantly associated with short-term all-cause mortality (odds ratio [OR] 6.57, 95% confidence interval [CI] 3.11 to 13.91), with death resulting from PE (OR 6.10, 95% CI 2.58 to 14.25), and with serious adverse events (OR 7.47, 95% CI 4.20 to 13.15). The corresponding positive and negative predictive values for death were 14% (95% CI 11% to 18%) and 99% (95% CI 97% to 100%), respectively. Conclusion This meta- analysis indicates that, while elevated BNP levels can help to identify patients with acute PE at high risk of death and adverse outcome events, the high negative predictive value of normal BNP levels is certainly more useful for clinicians to select patients with a likely uneventful follow-up.
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