Women's Health and Perinatology Research Group, Department of Clinical Medicine, Faculty of Health Sciences, University of Tromsø, Sykehusveien 38, N-9038 Tromsø, Norway.
Clin Perinatol. 2011 Mar;38(1):113-25, vi-vii. doi: 10.1016/j.clp.2010.12.006.
Aortic isthmus acts as an arterial watershed between the cerebral and placental circulations, connecting 2 parallel fetal ventricular pumps. It plays a crucial role in the fetal circulatory dynamics. Information about aortic isthmus blood flow may improve the management of sick fetuses. However, perceived technical difficulties limit the clinical use of aortic isthmus Doppler for fetal hemodynamic monitoring. Changes in aortic isthmus blood flow pattern seem to reflect fetal cardiovascular status accurately and predict perinatal and long-term neurodevelopmental outcome in intrauterine growth restriction. This review evaluates the available scientific information and discusses the role of aortic isthmus in fetal circulation.
主动脉峡部作为大脑和胎盘循环之间的动脉分水岭，连接着 2 个平行的胎儿心室泵。它在胎儿循环动力学中起着至关重要的作用。主动脉峡部血流信息可能有助于改善患病胎儿的管理。然而，技术上的困难限制了主动脉峡部多普勒在胎儿血流动力学监测中的临床应用。主动脉峡部血流模式的变化似乎能够准确反映胎儿心血管状态，并预测宫内生长受限的围产儿和长期神经发育结局。本综述评估了现有的科学信息，并讨论了主动脉峡部在胎儿循环中的作用。
