Methods 100 pregnant women were administered combined subarachnoid and epidural anesthesia during labour and compared with another 100 control pregnant women who did not receive the combined anesthesia.

• 方法对100例产妇分娩时实施蛛网膜下腔和硬膜外腔联合麻醉（观察组），并与100例未实施麻醉者（对照组）进行比较。