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  • Title: Plasma N-terminal pro-brain natriuretic peptide levels are positively correlated with pulmonary arterial pressure in atrial septal defect patients.
    Author: Li ZF, Zhou DX, Wang QB, Pan WZ, Zhang L, Ge JB.
    Journal: Regul Pept; 2013 May 10; 183():13-6. PubMed ID: 23499807.
    Abstract:
    N-terminal pro-brain natriuretic peptide (NT-proBNP), a pro-hormone secreted by the myocardium in response to various stimuli, was found to be correlated with several hemodynamic parameters in pulmonary hypertension associated with systemic sclerosis. We investigated plasma NT-proBNP levels and the relationships between NT-proBNP and several hemodynamic parameters in atrial septal defect (ASD) patients with or without pulmonary arterial hypertension (PAH). We found that plasma NT-proBNP level was significantly higher in PAH group compared with the control group (5495.4±388.4 pg/ml vs 4005.1±260.5 pg/ml, P<0.05). In a multiple regression model analysis, only mean pulmonary arterial pressure was an independent predictor of NT-proBNP (standardized coefficient=0.663, P=0.002). In the PAH group, only right atrial systolic pressure was found to be positively correlated with NT-proBNP, whereas other parameters were not found to be correlated with NT-proBNP. Our data suggests that NT-proBNP might also be a predictor of the severity of pulmonary hypertension in the ASD patients.
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