Risk Stratification of Pulmonary Thromboembolism using Brain Natriuretic Peptide and Troponin I; a Brief Report Diagnostic value of serum troponin and natriuretic peptide levels in pulmonary thromboembolism
Archives of Academic Emergency Medicine,
Vol. 10 No. 1 (2022),
,
Page e8
https://doi.org/10.22037/aaem.v10i1.1453
Abstract
Introduction: Pulmonary thromboembolism (PTE) is one of the most prevalent medical disorders, with a notable annual fatality rate. This study aimed to evaluated the accuracy of serum pro-BNP and troponin I levels in PTE diagnosis.
Methods: This cross-sectional study was implemented on 267 patients with suspected PTE (sudden chest pain or sudden dyspnea) in Imam Reza Hospital in Mashhad, Iran. All patients underwent pulmonary computed tomography (CT) angiography (as the gold standard test) and their serum levels of troponin I and pro-BNP were measured. The screening performance characteristics of pro-BNP in detection of PTE cases were measured and reported using receiver operating characteristic (ROC) curve analysis.
Results: Two-hundred-sixty-seven patients with a mean age of 67.7 ±11.5 years were evaluated (60.1% male). PTE was confirmed via CT angiography in 121 patients. The area under the ROC curve of troponin I and pro-BNP in detection of PTE was 0.501 ng/mL and 0.972 pg/mL, respectively. The sensitivity and specificity of proBNP at the best cut-off point (100 pg/ml) were 85.4% and 80.2%, respectively. The sensitivity and specificity of troponin I at the best cut-off point (0.005 ng/ml) were 65.5% and 42%, respectively.
Conclusion: Due to the comparatively good sensitivity and specificity of proBNP in diagnosis of pulmonary thromboembolism, it can be employed as a diagnostic determinant in patients with suspected pulmonary thromboembolism along with other laboratory tests.
- Troponin
- Pulmonary Embolism
- Natriuretic Peptide
- Brain
- Computed Tomography Angiography
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