• Abbas Sedighinejad, Bahram Naderi Nabi, Mohammad Haghighi, Vali Imantalab, Sodabe Hadadi, Reza Erfani Sayar, and Ahmadreza Mirblook.
• Anesthesiology Department, Guilan University of Medical Sciences, Rasht, Iran.
• Anesth Pain Med. 2013 Jan 1;2(4):170-3.

BackgroundVarious attempts have been made to reduce the incidence of fentanyl-induced cough during anesthesia induction. We hypothesized that an appropriate dose of propofol might suppress fentanyl-induced cough.ObjectivesA study had been designed to observe the effects of propofol on a fentanyl-induced cough during anesthesia induction.Patients And MethodsWe performed a randomized, double-blind study to evaluate the effect of the pre-emptive use of minimal dose intravenous propofol (20 mg) on the incidence of cough caused by a larger bolus of intravenous fentanyl. Group 1 patients were given fentanyl at a dosage of 4 µg/kg. Group 2 received 4µg/kg fentanyl and 20 mg propofol. The two groups were evaluated in 0, 5 and 10 second intervals following the injection of fentanyl.ResultsMean age, weight, and, height was 35 ± 10.45, 67.99 ± 10.92, and 165.33 ± 31.84 respectively. The incidence of fentanyl induced cough was 29 (74.4%) in placebo group compared with 10 (25.6%) in the propofol group. There was a significant difference in the incidence and severity of cough between group 1 and 2 (P < 0.0001). This study also showed that propofol could decrease cough incidence in patients who smoke.ConclusionsPriming dose of propofol (20mg) one minute prior to fentanyl injection was effective in suppressing a fentanyl-induced cough.

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