Title |
Comparison of propofol and midazolam on patients undergoing spinal surgery with intraoperative wake-up test: randomized clinical trial
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Published in |
Brazilian Journal of Anesthesiology, November 2013
|
DOI | 10.1016/j.bjane.2013.10.003 |
Pubmed ID | |
Authors |
Ozgur Canbay, Basak Altiparmak, Nalan Celebi, Heves Karagoz, Fatma Saricaoglu |
Abstract |
Instrumentation in correction operations for spinal deformities carries a 0.5-5% risk of injuring the spinal cord. The wake-up test is used for early detection of these injuries. In this study we compared the effects of propofol and midazolam during wake-up test in scoliosis surgery. Thirty patients were randomly assigned as group P and group M. Anesthesia was induced with propofol 2.5mgkg(-1) for group P or midazolam 0.5mgkg(-1) for group M with remifentanil 0.5μgkg(-1) and cisatracurium 0.15mgkg(-1) for both groups. At the maintenance of anesthesia O2/air and infusions of remifentanil and cisatracurium were used. In group P, propofol 6-10mgkg(-1)h(-1) and in group M, midazolam 0.5mgmgkg(-1) were preferred. Approximately 15min before the wake-up test, all drugs were discontinued. At the wake-up test, anesthesiologist asked the patients to open their eyes and squeeze his/her hand at every 30s until the patients responded. Then patients were told to wiggle their toes. Hemodynamic parameters, time of eye-opening, appropriate movement upon verbal command were evaluated. BIS frequency throughout the operation was recorded. The eye opening time was 9±2.15min in group P and 7±3.15min in group M. Motor movement time was 12±2.55min in group P and 21.25±3.93min in group M. Propofol provided better wake-up conditions and conducted a better neurologic assessment within the same BIS values than midazolam. |
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