Weindling A M, Rolfe P, Tarassenko L, Costeloe K
Acta Paediatr Scand Suppl. 1983;311:14-9. doi: 10.1111/j.1651-2227.1983.tb09877.x.
We report studies in which the amplitude of the cardiac-synchronous change in transcephalic impedance, delta Z, has been used in the investigation of cerebral haemodynamics in newborn babies. Three clinical situations, in which cerebral blood flow might be expected to change, have been studied. The impedance signal, delta Z, decreased in size during a tension pneumothorax, increased slightly with feeding, and, during an exchange transfusion of an asphyxiated baby, there was a consistent increase in the size of the signal during infusion of blood and a decrease in size as blood was withdrawn. This method may be useful for the continuous study of cerebral haemodynamics in the preterm baby over prolonged periods.
我们报告了一些研究，其中经颅阻抗的心脏同步变化幅度（ΔZ）已被用于研究新生儿的脑血流动力学。研究了三种可能预期脑血流会发生变化的临床情况。在张力性气胸期间，阻抗信号ΔZ的大小减小，喂食时略有增加，在对窒息婴儿进行换血输血时，输血期间信号大小持续增加，抽血时信号大小减小。这种方法可能有助于对早产儿的脑血流动力学进行长时间的连续研究。
