Background: Intravenous administration of fentanyl derivatives can induce cough paradoxically. This study examined the incidence and severity of cough after a bolus of alfentanil and remifentanil. Methods: Four hundred and sixty‐five patients, aged 18–70 years, were allocated randomly to three groups to receive alfentanil 10 μg/kg, remifentanil 1 μg/kg or an equal volume of 0.9% saline intravenously over 10 s. Any episode of cough was classified as coughing and graded as mild (1–2), moderate (3–4) or severe (5 or more). Results: The overall incidence of cough was higher in the opioid groups than in the saline group. The remifentanil group [39/150 patients; 26.0% (95% CI, 19.6–33.6%)] showed a higher incidence than the alfentanil group [11/152 patients; 7.2% (95% CI, 0.4–12.6%)] (P<0.001). There was no significant difference in the severity of cough between the alfentanil group and the remifentanil group. Conclusion: This study demonstrated that equipotent boluses of alfentanil and remifentanil induced coughing, even though the incidence of cough after alfentanil administration was lower than that after remifentanil administration.
Summary This study evaluated the effect of limiting maximal infusion‐pump flow rate on suppression of remifentanil‐induced cough during target‐controlled infusion. Two hundred and ten patients were randomly assigned to receive remifentanil at an effect‐site concentration of 4.0 ng.ml−1 with maximal flow rate limited to 100 (group R100), 200 (group R200), or 1200 ml.h−1 (group R1200). The number of episodes of cough were recorded and graded as mild (1–2), moderate (3–4), or severe (5 or more). The incidence of cough was 2.9% in group R100, 5.7% in group R200 and 25.7% in group R1200. Patients in group R100 and R200 had a significantly lower incidence of cough than those in group R1200 (p < 0.05). Zero, two and five patients coughed a moderate amount in groups R100, R200 and group R1200, respectively (p < 0.05). Limiting maximal infusion rate during remifentanil TCI suppressed remifentanil‐induced cough.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.