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Canadian Journal of Anesthesia, Vol 44, 929-933, Copyright © 1997 by Canadian Anesthesiologists' Society

ARTICLES

Opioid sedation does not alter intracranial pressure in head injured patients

KK Lauer, LA Connolly and WT Schmeling
Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, USA. klauer@post.its.mcw.edu

PURPOSE: This study aimed to examine the effects of sedative doses of morphine, fentanyl and sufentanil on intracranial pressure (ICP) in head-injured patients in whom changes in mean arterial pressure (MAP) were minimized. METHODS: Fifteen severely head-injured patients (GSC of < or = 8) were randomly assigned to receive either fentanyl, sufentanil or morphine, titrating the drug to a maximal 10% decrease in MAP. The patients were subsequently given an infusion of the same opioid. For four hours, ICP, MAP and heart rate were recorded. RESULTS: In all groups, there were no increases in ICP. There was a decrease in MAP in the sufentanil group at 10 min (P < 0.05) and 45 min after the initial opioid bolus. These decreases in MAP were not associated with increases in ICP. CONCLUSION: The study suggests that when opioids are titrated in head-injured patients, worsening intracranial pressure can be avoided.




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Copyright © 1997 by the Canadian Anesthesiologists' Society.