• Wang Wenjie, Lu Houqing, and Sun Gengyun.
• Department of ICU, Tongling Clinical College of Anhui Medical University, Tongling 244000, Anhui Province, China(1). Electronic address: xbbaax@163.com.
• Clin Neurol Neurosurg. 2014 Oct 1;125:194-7.

ObjectiveTo evaluate the effect of dexmedetomidine on outcomes following craniocerebral operation and provide evidence for individualized medication.MethodsWe searched the Cochrane Library, PubMed, Springer, CNKI, Wanfang Data Resource and other Chinese and foreign databases with electronic retrieval, within the period 1990-2013, for records relating to dexmedetomidine, brain pharmacokinetics and clinical randomized controlled studies. Records were assessed using the Cochrane system evaluation method for assessing the quality of research, using Revman 5.1 Meta-analysis software.ResultsAfter screening and removal of duplicate documents there were 22 English and 44 Chinese articles, among which there were eight describing clinical trials, with a total of 412 cases. Meta-analysis showed that dexmedetomidine on rate during craniocerebral operation (standardized mean difference=-8.32, 95% confidence interval [CI] -10.38 to 6.26, P<0.00001), and blood pressure (standardized mean difference=-3.37, 95% CI -5.36 to 1.38, P<0.00001). The study had good heterogeneity using random effects model analysis, and there was no publication bias.ConclusionDexmedetomidine can reduce the hemodynamic response and play a role in brain protection.Copyright © 2014 Elsevier B.V. All rights reserved.

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