The number of parturients with good or excellent analgesia was similar, and the degree of motor block and Apgar score were identical in two groups (all P>0.05).

• VAS评分、运动神经阻滞程度、新生儿Apgar评分、产后 2h出血量两组比较 ；差异无显著性意义(均P >0 .；0 5 ) ;