The onset and duration of sensory and motor block, adversre reactions, HR,BP,SpO2 during operation and Apgar score of neonates at 1 min and 5 min were recorded and compared.

• 记录蛛网膜下腔阻滞后产妇的感觉阻滞和运动阻滞的起效和持续时间、麻醉质量评价、恶心呕吐等不良反应及术中HR、BP、SpO2和新生儿1min和5min Apgar评分。