• J Clin Anesth · Feb 1995

    Randomized Controlled Trial Comparative Study Clinical Trial

    Comparison of intravenous ketorolac and alfentanil as supplements to propofol anesthesia for diagnostic panendoscopy.

    • V Bosek, D B Smith, J Endicott, D Klotch, and M Ridley.
    • H. Lee Moffitt Cancer Center, University of South Florida College of Medicine, Tampa 33612-4799, USA.
    • J Clin Anesth. 1995 Feb 1; 7 (1): 40-3.

    Study ObjectiveTo determine if ketorolac tromethamine is an acceptable alternative to alfentanil as a supplement to propofol for diagnostic panendoscopy.DesignRandomized, double-blind study.SettingUniversity medical center.Patients40 patients scheduled for panendoscopy and laryngeal tissue biopsy.InterventionsPatients were randomly assigned to receive either alfentanil 14.5 micrograms/kg or ketorolac 1.0 mg/kg in a double-blind fashion, 5 to 10 minutes before induction of general anesthesia.Measurements And Main ResultsHeart rate (HR) and noninvasive blood pressure (BP) were measured and recorded before and immediately after injection of the study drug, after laryngoscopy for the endotracheal tube placement, and after initiation of diagnostic panendoscopy. Bleeding in the operative field was rated by the endoscopist. Observation from discontinuation of the propofol infusion and nitrous oxide inhalation to eye opening, head lifting, and orientation to time and place was observed and recorded. The presence of stridor after extubation, and pulse oximeter-determined arterial blood oxyhemoglobin saturation immediately after extubation and 5 minutes later, were noted. In the recovery room, the ability to tolerate oral fluids, sit, stand, and walk were recorded. Supplementation with ketorolac provides faster recovery from anesthesia as evidenced by shorter time to eye opening, head lifting, and orientation to time and place. However, no intergroup differences were found in measured intraoperative variables (BP and HR following laryngoscopy, tracheal intubation, diagnostic panendoscopy, and tissue biopsy). Operative site bleeding was comparable in both groups. The variables reflecting street readiness and the incidence of nausea and vomiting were statistically comparable.ConclusionSupplementation of propofol anesthesia with ketorolac is an efficacious alternative to supplementation with alfentanil. The faster recovery in the ketorolac group is explained by the mostly peripheral effect of this drug, whereas the slow decline in the alfentanil concentration at the effective site may be responsible for slower emergence from anesthesia.

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