1.Antiseptic solutions for central neuraxial blockade: which concentration of chlorhexidine in alcohol should we use?

1.中枢神经阻解于酒精中的防腐剂氯己定浓度应该为多？

2.Although epidural anesthesia is a common practice in neuraxial blockade, difficult access to the epidural space is a frequent problem in operating theaters.

2.虽然硬膜外阻断术是一种常用的区域麻醉，施上却经常遭遇到困难。