alexa Choice of opioid supplementation for day-case rigid bronchoscopy:a randomized placebo-controlled comparison of a bolus of remifentanil and alfentanil.
Anesthesiology

Anesthesiology

Journal of Anesthesia & Clinical Research

Author(s): Agnew NM, Tan NH, Scawn ND, Pennefather SH, Russell GN

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Abstract OBJECTIVE: To compare the efficacy of different bolus doses of remifentanil, alfentanil, and saline at controlling the hemodynamic responses to day-case rigid bronchoscopy under general anesthesia. DESIGN: Prospective, randomized, double-blind, placebo-controlled study. SETTING: Tertiary referral cardiothoracic hospital, single center. PARTICIPANTS: Eighty consenting adults scheduled for elective day-case rigid bronchoscopy under general anesthesia. INTERVENTIONS: Patients were randomized to receive a bolus of 10 micro g/kg of alfentanil, 1 micro g/kg of remifentanil, 2 micro g/kg of remifentanil or saline. After this, anesthesia was induced and maintained with a target-controlled propofol infusion (TCI) and succinylcholine was used for muscle relaxation. Heart rate and noninvasive arterial pressure were measured at 1-minute intervals throughout. MEASUREMENTS AND MAIN RESULTS: Patients' characteristics were similar in all 4 groups. There were no differences in time to return of spontaneous ventilation, wake-up times, or use of rescue vasopressors, and no patients complained of postoperative nausea. Remifentanil provided greater hemodynamic stability than alfentanil and a bolus of remifentanil of 2 micro g/kg significantly attenuated the rise in heart rate and was the most effective in preventing a rise in blood pressure. CONCLUSIONS: A bolus of 2 micro g/kg of remifentanil successfully attenuated the hemodynamic response to rigid bronchoscopy without delaying recovery.
This article was published in J Cardiothorac Vasc Anesth and referenced in Journal of Anesthesia & Clinical Research

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