儿童先天性心脏病血清Apelin水平与肺动脉压关系的初步探讨

目的 初步探讨先天性心脏病患儿血清Apelin 水平与肺动脉压的关系.方法 手术治疗的先心病患儿126 例,检测患儿术前及术后第7 天的血清Apelin 水平.建立体外循环前检测并计算肺动脉收缩压/体循环收缩压(Pp/Ps)的比值,依据Pp/Ps 分组:无肺动脉高组压(PAH)组、轻度PAH 组、中度PAH 组和重度PAH 组;术后第7 天超声心动图估测肺动脉平均压(PAMP).结果 无PAH,以及轻、中、重度PAH 各组术前及术后的血清Apelin 水平依次降低,差异有统计学意义(PPr=-0.51,-0.54,P结论 先心病患儿并发肺动脉高压及其发展与血清Apelin 水平降低有关系,血清Apelin 对诊断先心病患儿是否并发肺动脉高压及其程度的意义值得深入研究.

A preliminary investigation of relationship between serum apelin level and pulmonary artery pressure in children with congenital heart disease

ObjectiveTo preliminarily investigate the relationship between serum apelin level and pulmonary artery pressure in children with congenital heart disease.MethodsOne hundred and twenty-six children with congenital heart disease undergoing surgical treatment were enrolled as subjects. The serum level of apelin was determined before surgery and at 7 days after surgery. The ratio of pulmonary artery systolic pressure to aortic systolic pressure (Pp/Ps) was calculated before extracorporeal circulation. According to the Pp/Ps value, patients were classiifed into non-pulmonary arterial hypertension (PAH) group, mild PAH group, moderate PAH group, and severe PAH group. Pulmonary artery mean pressure was estimated by echocardiography at 7 days after surgery.ResultsThe non-PAH group had the highest serum level of apelin before and after surgery, followed by the mild PAH group, moderate PAH group, and severe PAH group (P<0.05). All groups had signiifcantly increased serum levels of apelin at 7 days after surgery (P<0.05). The serum level of apelin was negatively correlated with pulmonary artery pressure before surgery (r=-0.51,P<0.05) and at 7 days after surgery (r=-0.54,P<0.05).ConclusionsThe decrease in serum apelin level is associated with the development of pulmonary hypertension in children with congenital heart disease. The signiifcance of serum apelin in predicting the development and degree of pulmonary hypertension in children with congenital heart disease deserves further studies.