Johnston G M, Rodgers R C, Tunstall M E
Anaesthetic Department, Aberdeen Royal Infirmary, Scotland.
Anaesthesia. 1989 Sep;44(9):750-2. doi: 10.1111/j.1365-2044.1989.tb09262.x.
A study was undertaken to investigate the changes in pressure inside the epidural space in parturients in the first stage of labour. The purpose was to see whether acute local pressure changes in the epidural space were consistent with the hypothesis that there is physical movement of cerebrospinal fluid with certain changes in maternal posture. Pressure changes were measured via the epidural catheter through which continuous infusion epidural analgesia was administered, using a pressure transducer kept at the level of the lumbar spine. The mothers moved through a series of postures that reflected those expected during the course of labour and delivery. The pressure within the catheter was recorded during these manoeuvres. The pressure changes which were found, taken in conjunction with the associated investigations of others, are consistent with the hypothesis.
一项研究旨在调查分娩第一阶段产妇硬膜外腔压力的变化。目的是观察硬膜外腔的急性局部压力变化是否与以下假设一致：即随着产妇姿势的某些变化，脑脊液会发生物理移动。通过硬膜外导管测量压力变化，该导管用于持续输注硬膜外镇痛，压力传感器置于腰椎水平。母亲们经历了一系列反映分娩和接生过程中预期姿势的动作。在这些动作过程中记录导管内的压力。所发现的压力变化，结合其他人的相关研究，与该假设一致。
