窒息新生儿导纳式双侧脑血流图检测的意义

Detective Significance of Cerebral Electrical Admittance Plethysmogram in Newborns with Asphyxia

目的 研究窒息新生儿脑血流动力学变化的意义。方法 采用导纳式双侧脑血流自动检测仪于生后1～4d对窒息新生儿及正常新生儿各20例进行临测，探讨其脑血流变化的规律性。结果 生后Ⅰ～4d窒息组双侧流入容积速度（Hs／b-S）显著低于正常组（P〈0．05），窒息组双侧脑导纳微分环（ADL）Ⅰ＋Ⅱ指数显著低于正常组（P〈0．05）；生行1d窒息组双侧ADLⅣ指数显著高于正常组（P〈0．05）。结论 脑导纳图检测能较好地反映窒息患儿的脑血流动力学情况。

Objective To study hcmodynamics of cerebral blood flow in newborns with asphyxia. Method Bilateral cerebral electri cal admittance plethysmogram （BCEAP） was used to explore characteristics of cerebral blood flow in 20 healthy newborns and 20 newbores with asphyxia respectively from first to fourth day after birth. Results Both the ratio of Hs to b- S （Hs/b -S） and index of admittance differential loop（ADL） Ⅰ＋Ⅱ decreased significantly in newborns with asphyxia compared to normal control from first to fourth day after birth （P〈0.05）. Index of ADL Ⅳ for asphyxic newborns was significantly higher than that of control at the first day after birth （P〈 0.05）. Conclusion BCEAP is useful to detect the hemodynamics of cerebral blood flow in the newborns with asphyxia.