The Application of Low Concentration Ropivacaine Epidural Anesthesia in The Operation of Transforaminal Endoscopic
LUO Man,GENG Li-cheng,GAO Tao
Department of Anesthesiology, Tianjin Union Medical Center, Tianjin (300121), China
Abstract:
Objective To compare the anesthesia effect of low concentration ropivacaine epidural anesthesia and local anesthesia in Percutaneous Transforaminal Endoscopic Discectomy (PTED) Methods 50 cases of patients, scheduled for the operation of transforaminal endoscopic：epidural anesthesia group (R group) and local anesthesia group (L group) (n=25 each group). R group of patients epidural punctured at L2-L3 clearance , implanted the epidural catheter 5 cm toward the side of head, after injection of 1% lidocaine 3 mL in the supine position, injected 0.3% ropivacaine amount of 15 mL in 10 minutes. L group of patients was performed with 0.5% lidocaine 20 mL at the location of surgical site in the lateral position. The intraoperative pain block was assessed by Visual Analogue Score (VAS) and the motor block was assessed by modified Bromage score. Results The modified Bromage score was 0 in both groups .Compared with the L group, the intraoperartive vital signs of group R were stabler (P<0.05), and the feeling block was better (P<0.05)during stimulation of the spinal nerve root and removal of the nucleus pulposus. VAS score in group R was lower and the number of cases requiring intravenous sufentanil was less. Conclusion The effect of 0.3% ropivacaine 15 mL epidural anesthesia, with lower degree of motor block, was superior to local anesthesiain in the operation of transforaminal endoscopic.
