主动脉峡部在评估胎儿宫内生长受限中的应用

Application of aortic isthmus in the evaluation of fetuses with intrauterine growth restriction

胎儿宫内生长受限(IUGR)是一种重要的妊娠并发症,与临床不良结局、死产、围产期发病率和脑瘫有关。主动脉峡部(AOI)是左右心室间唯一动脉连接,其血流直接、快速地反应了心室输出与周围血管系统阻抗间的平衡,因而它作为IUGR血流动力学逐步恶化,特别是作为其短期及长期不良结局的预测指标逐渐被提出。本文对胎儿AOI血流频谱在评估IUGR中的应用进行归纳综述。

Fetal intrauterine growth restriction(IUGR)is an important pregnancy complication associated with adverse clinical outcomes,stillbirth,perinatal morbidity,and cerebral palsy.Aortic isthmus(AOI)is the only arterial connection between left and right ventricle.Its blood flow directly and rapidly reflects the balance between the ventricular output and the impedance of the peripheral vascular system.Therefore,AOI has been gradually proposed,as a predictor of IUGR hemodynamic deterioration,especially as a predictor of its short and long term adverse outcomes.The application of fetal AOI blood flow spectrum in the evaluati-on of IUGR is summarized.