期刊
PEDIATRICS INTERNATIONAL
卷 60, 期 11, 页码 1024-1032出版社
WILEY
DOI: 10.1111/ped.13689
关键词
asthma; children; N-terminal pro-B-type natriuretic peptide; subclinical right ventricular dysfunction
类别
Background Bronchial asthma may lead to pulmonary hypertension, right ventricular (RV) dysfunction, and cor pulmonale due to elevated afterload on the RV later in life. The aim of this study was to determine whether serum N-terminal pro-B-type natriuretic peptide (NT-proBNP) might serve as a biomarker for detecting subclinical RV dysfunction using echocardiography during the early stages of bronchial asthma. Methods Sixty-eight pediatric patients with asthma (asthma group) and 69 age- and sex-matched healthy children (control group) were enrolled. The study was conducted in a tertiary woman and child diseases education and research hospital from January 2013 to December 2013. RV function (2-D and tissue-Doppler echocardiography), pulmonary function (spirometry) and serum NT-proBNP concentration were evaluated. Results Mean age was 10.5 +/- 2.8 years in the asthma group and 10.2 +/- 2.7 years in the control group (P = 0.522). RV diastolic function was significantly decreased in the asthma group (ratio of tricuspid lateral annular early diastolic peak velocity to tricuspid lateral annular late diastolic peak velocity [E '/A '], 1.29 +/- 0.68 vs 1.74 +/- 0.89, P = 0.001). RV myocardial performance index was significantly higher in the asthma group than in the control group (0.28 +/- 0.06 vs 0.24 +/- 0.07, respectively; P = 0.003). Finally, serum NT-proBNP concentration was significantly higher in the asthma group than in the control group (292.3 +/- 142.2 pg/mL vs 208.2 +/- 70.1 pg/mL, respectively; P = 0.003). Conclusion Increased serum NT-proBNP is associated with subclinical RV dysfunction in asthmatic children. RV function is significantly affected in children with bronchial asthma.
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