Percutaneous Closure of Patent Ductus Arteriosus on Plasma N-Terminal Brain Natriuretic Peptide Level and Left Ventricular Function / 实用儿科临床杂志

ABSTRACT

Objective To evaluate the effect of percutaneous closure of patent ductus arteriosus(PDA)on left ventricular size and function by measuring plasma N-terminal brain natriuretic peptide(NT-proBNP)level and using two-dimensional echocardiography.Methods According to the modified Ross score,55 children with PDA were divided into 3 groups,no congestive heart failure(CHF)group(31 cases),mild CHF group(14 cases)and moderate-severe CHF group(10 cases).Fifteen age-matched and weight-matched normal children were used as controls.Plasma NT-proBNP was measured using enzyme-linked immunosorbent assay(ELISA).All patients had complete echocardiographic study,including measurement of left ventricular end diastolic volume index(LVEDVI),left ventricular end systolic volume index(LVESVI),and left ventricular ejection fraction(LVEF),and left ventricular fractional shortening(LVFS).The correlation between plasma NT-proBNP level and echocardiographic cardiac functional indexes was determined.Results 1.Before operation LVEDVI and LVESVI in PDA patients were obviously higher than those in normal controls(Pa0.05).3.Three months after operation plasma NT-proBNP level,LVEDVI and LVESVI were significantly decreased(P