生理食塩水の追加投与はロピバカインによる硬膜外麻酔後の運動神経ブロック回復時間を短縮する

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  • Additional Epidural Injection of Saline Can Shorten Postoperative Motor Blockade after Ropivacaine Epidural Anesthesia

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  Although epidural anesthesia has several advantages over general anesthesia, it has the disadvantage of prolonged postoperative recovery for motor function. We evaluated whether 20 mL of saline injected epidurally on removal of the catheter shortened the motor recovery from epidural ropivacaine anesthesia. Sixty patients who underwent transurethral surgery received lumbar epidural anesthesia with 10 mL of ropivacaine. At the end of surgery, the patients were randomly allocated to two groups, and 20 mL saline was injected epidurally in one group, whereas the other group was given none, upon removal of an epidural catheter. The motor block was assessed with the Bromage scale. The time to recovery of motor function in the saline group was significantly shorter (144 min) than in the control group (250 min). We believe that epidural injection of saline would be useful to shorten postoperative motor blockade.

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