BACKGROUND: Patients with pulmonary embolism (PE) have a high risk of death, and it is important to recognize factors associated with higher mortality. Recently, several biomarkers have been studied for risk stratification in patients with PE. OBJECTIVES: Evaluate the available evidence on (a) the accuracy of brain natriuretic peptide (BNP) and N-terminal pro-brain natriuretic peptide (NT-proBNP) for the diagnosis of right ventricular dysfunction and (b) their value as a prognostic factor of all-cause in-hospital or short-term mortality in patients with PE. DATA SOURCES: MEDLINE, Embase, and citation review of relevant primary and review articles. SELECTION CRITERIA: We selected studies evaluating the accuracy of BNP or NT-proBNP for the diagnosis of right ventricular dysfunction. We also selected studies that reported data on BNP or NT-proBNP as a predictor of short-term mortality in patients with PE. RESULTS: Sixteen studies met our inclusion criteria. The pooled diagnostic odds ratio for the diagnosis of right ventricular dysfunction in pulmonary embolism was 39.45 (95% CI; 15.54-100.12) and 24.73 (95% CI 2.02-302.37) for BNP and NT-proBNP, respectively. The pooled odds ratio for all-cause in-hospital or short-term mortality was 6 (95% CI 1.31-27.43; p: 0.021) and 16.12 (95% CI 3.1-83.68; p: 0.001) for BNP (cutoff: 100 pg/ml) and NT-proBNP (cutoff: 600 ng/L), respectively. CONCLUSION: The results of this meta-analysis indicate that BNP and NT-proBNP are associated with the diagnosis of right ventricular dysfunction (RVD) in patients with an acute PE and are significant predictors of all-cause in-hospital or short-term mortality in these patients.
BACKGROUND:Patients with pulmonary embolism (PE) have a high risk of death, and it is important to recognize factors associated with higher mortality. Recently, several biomarkers have been studied for risk stratification in patients with PE. OBJECTIVES: Evaluate the available evidence on (a) the accuracy of brain natriuretic peptide (BNP) and N-terminal pro-brain natriuretic peptide (NT-proBNP) for the diagnosis of right ventricular dysfunction and (b) their value as a prognostic factor of all-cause in-hospital or short-term mortality in patients with PE. DATA SOURCES: MEDLINE, Embase, and citation review of relevant primary and review articles. SELECTION CRITERIA: We selected studies evaluating the accuracy of BNP or NT-proBNP for the diagnosis of right ventricular dysfunction. We also selected studies that reported data on BNP or NT-proBNP as a predictor of short-term mortality in patients with PE. RESULTS: Sixteen studies met our inclusion criteria. The pooled diagnostic odds ratio for the diagnosis of right ventricular dysfunction in pulmonary embolism was 39.45 (95% CI; 15.54-100.12) and 24.73 (95% CI 2.02-302.37) for BNP and NT-proBNP, respectively. The pooled odds ratio for all-cause in-hospital or short-term mortality was 6 (95% CI 1.31-27.43; p: 0.021) and 16.12 (95% CI 3.1-83.68; p: 0.001) for BNP (cutoff: 100 pg/ml) and NT-proBNP (cutoff: 600 ng/L), respectively. CONCLUSION: The results of this meta-analysis indicate that BNP and NT-proBNP are associated with the diagnosis of right ventricular dysfunction (RVD) in patients with an acute PE and are significant predictors of all-cause in-hospital or short-term mortality in these patients.
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