Morrison L M, Buchan A S
Department of Anaesthetics, Edinburgh Royal Infirmary.
Br J Anaesth. 1990 Feb;64(2):183-5. doi: 10.1093/bja/64.2.183.
Adverse events associated with single-holed and multi-holed extradural catheters were compared in obstetric practice. Two hundred and forty-five patients were given an extradural block using a single-holed catheter and 229 received a block via a multi-holed catheter. There was no difference in the incidence of major side effects. Flow of fluid under gravity in the catheter was restricted significantly more often in the single-holed catheters. Blood was found significantly more often in the multi-holed catheters.
在产科实践中，对单孔和多孔硬膜外导管相关的不良事件进行了比较。245例患者使用单孔导管进行硬膜外阻滞，229例患者通过多孔导管进行阻滞。主要副作用的发生率没有差异。单孔导管中，重力作用下导管内液体流动受限的情况明显更常见。多孔导管中发现血液的情况明显更常见。
