• Peng-Ching Hsiao, Yu-Ying Tang, Wen-Jinn Liaw, Ya-Hsin Lee Yue-Cune Chang, Fa-Chang Chen, and Kwua-Yun Wang.
• Department of Nursing, Tri-Service General Hospital, Taipei, Taiwan, ROC.
• Acta Anaesthesiol Taiwan. 2006 Jun 1;44(2):93-9.

BackgroundPropofol and midazolam are commonly used in the ICU to alleviate physical and psychological disturbances in consequence of anxiety. This study was conducted to assess and compare the impact of postoperative sedation after major surgery with midazolam or propofol on amnesia and anxiety in conscious patients under intensive care.MethodsOne hundred and two adult patients irrespective of sex and age, receiving thoracic, abdominal or other major truncal surgery necessitating close care at the ICU, were randomly allocated into midazolam or propofol group. Prior to surgery, all patients were subjected to evaluation of the levels of anxiety and amnesia, which was repeated on the following morning with the level of anxiety and the level of amnesia assessed just before and 30 min after cessation of midazolam or propofol medication, respectively.ResultsThere were no significant differences between the two groups regarding gender, age, types of analgesics used, and anxiety. In both groups, the levels of anxiety (P < 0.001) and amnesia (P < 0.001) were improved significantly over the following day. Midazolam had more pronounced effects on amnesia than propofol (P < 0.001). There were no significant differences between the two groups in the pre- or post-drug anxiety (P = 0.189).ConclusionsBoth midazolam and propofol are effective amnesic and anxiolytic drugs. Midazolam tends to have more favorable effects on amnesia. It is speculated that combination of propofol and midazolam may give better results for treating critically ill ICU patients, the confirmation of which necessitates further study.

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