The simplest explanation is that the epidural needle is not actually in the epidural space at the time of attempted spinal puncture.

最简单的解释是腰麻时硬膜外针未在硬膜外间隙。

youdao

The simplest explanation is that the epidural needle is not actually in the epidural space at the time of attempted spinal puncture.

最简单的解释是腰麻时硬膜外针未在硬膜外间隙。

youdao