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  • Title: Inhalational anesthetic technique in microlaryngeal surgery: a comparison between sevoflurane-remifentanil and sevoflurane-alfentanil anesthesia.
    Author: Pandazi AK, Louizos AA, Davilis DJ, Stivaktakis JM, Georgiou LG.
    Journal: Ann Otol Rhinol Laryngol; 2003 Apr; 112(4):373-8. PubMed ID: 12731635.
    Abstract:
    We studied the effects of sevoflurane, remifentanil hydrochloride, and alfentanil anesthesia in terms of the hemodynamic responses and emergence characteristics of patients scheduled for elective microlaryngeal surgery. Sixty patients (ASA I to III) were randomly allocated into 2 groups: group S-R (sevoflurane-remifentanil) and group S-A (sevoflurane-alfentanil; 1:20 and 1:4 ratios of remifentanil to alfentanil for induction and maintenance of anesthesia, respectively; doses not strictly equipotent). The mean arterial pressure and heart rate were measured before and after induction of anesthesia, 1 and 3 minutes after endotracheal intubation, at the insertion of the operating laryngoscope, and every 3 minutes during surgery. The emergence times and side effects during the first 30 minutes after surgery were also recorded. The mean arterial pressure values at the insertion of the operating laryngoscope and throughout the procedure were significantly greater (p < .05) in group S-A than in group S-R. The emergence times and postoperative side effects did not differ, except for the greater pain score (p < .05) in group S-R. In conclusion, sevoflurane with remifentanil seems to maintain cardiovascular stability during microlaryngeal surgery more effectively than sevoflurane with alfentanil. Both anesthetic regimens seem to provide rapid and uneventful emergence.
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