-
Study aim
-
The effect of duration of injection time on the incidence and severity of fentanyl-induced cough (FIC)
-
Design
-
This clinical trial will consist of three groups, double-blind, randomized, and parallel. Samples will be determined using Block Randomization method, Allocation Random Software and based on injection rate of 150 pcs.
The numbers x≤50 will fall into the first group, 50˂x≤100 in the second group, and 100˂x≤150 into the third group.
Patients will receive fentanyl over the course of 2–5 seconds in the first group, 15 seconds in the second group, and 30 seconds in the third group.
-
Settings and conduct
-
This double blind clinical trial study will be conducted on 150 patients with ASA1 candidates for elective surgery in Shahid Mohammadi hospital in Bandar Abbas. Patients will receive fentanyl over the course of 2–5 seconds in the first group, 15 seconds in the second group, and 30 seconds in the third group. Patients will not be aware of the duration of fentanyl injection. Information will be recorded in a special form by an experienced anesthesiologist who will be unaware of the study process.
-
Participants/Inclusion and exclusion criteria
-
Inclusion criteria: Patient age between 18-50 years, physical status (ASA I) and candidate for elective surgery.
Exclusion criteria: Patients with a history of asthma, chronic cough, respiratory infection in the past 4 weeks, Angiotensin converting enzyme inhibitor drugs, smoking, drug use, bronchodilator or steroid administration, Abnormal and extra sounds in the heart and lungs
-
Intervention groups
-
Intravenous injection of fentanyl will be given in three groups for 2, 15 and 30 seconds, respectively.The severity and incidence of cough will be recorded in a special form within 2 minutes after intravenous injection of fentanyl.
-
Main outcome variables
-
Incidence and severity of cough during anesthesia induction