Influence of Speed of Fentanyl Citrate Injection before Induction of Anesthesia on Fentanyl-Induced Cough: a Prospective, Randomized, Double Blinded Study

Influence of Speed of Fentanyl Citrate Injection before Induction of Anesthesia on Fentanyl-Induced Cough: a Prospective,Randomized, Double Blinded Study

Fentanyl Induced Coughing (FIC), with the incidence ranging from 18-65%; is not always benign and brief and can be remarkably troublesome, spasmodic, explosive at the most critical moment of induction of anesthesia when airway reflex is lost, attracting immediate emergency intervention. We designed this study to evaluate the effect of injection time on fentanyl induced cough.