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KMID : 1195620140070040307
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Clinical and Experimental Otorhinolaryngology
2014 Volume.7 No. 4 p.307 ~ p.311
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Comparison of Clonidine and Midazolam Premedication Before Endoscopic Sinus Surgery: Results of Clinical Trial
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Wawrzyniak Katarzyna
Kusza Krzysztof
Cywinski Jacek B.
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Abstract
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Objectives: Premedication with clonidine has been found to reduce the bleeding during endoscopic sinus surgery (ESS), therefore lowering the risk of surgical complications. Premedication is an essential part of pre-surgical care and can potentially affect magnitude of systemic stress response to a surgical procedure. The aim of this study was to compare the efficacy of premedication with clonidine and midazolam in patients undergoing sinus surgery.
Methods: Forty-four patients undergoing ESS for chronic sinusitis and polyp removal were enrolled and randomly assigned to receive either oral clonidine or midazolam as a premedication before receiving propofol/remifentanil total intravenous anesthesia. The effect of this premedication choice on anesthetic requirements, intraoperative hemodynamic profile, preoperative anxiety and sedation as well as postoperative pain and shivering were examined in each premedication group.
Results: Total intraoperative remifentanil requirement was lower in the clonidine group as compared to the midazolam group 503.2±147.0 μg vs. 784.5±283.8 μg, respectively (P<0.001). There was no difference between groups in required induction dose of propofol, level of preoperative anxiety, level of sedation and postoperative shivering. Intraoperative systemic blood pressure and heart rate response had a more favorable profile in patients premedicated with clonidine. Postoperative pain assessed by visual analogue scale for pain was lower in the clonidine group compared with to the midazolam premedication group.
Conclusion: Premedication with clonidine provides better attenuation of hemodynamic response and reduction of intraoperative remifentanil requirements in patients undergoing ESS. Postoperative pain seems to be better controlled after clonidine premedication as well.
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KEYWORD
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Anesthesia, Surgical procedures, Minimally invasive, Clonidine, Premedication
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