“Comparative Efficacy of Different Doses of Fentanyl on Cardiovascular Responses to Laryngoscopy and Tracheal Intubation”
GC01-GC03
Correspondence
Dr. Vinod Hosalli,
Associate Professor, Department of Anesthesiology, S N Medical College, Bagalkot, Karnataka 587102, India.
E-mail: drvinodhosalli@yahoo.co.in, Phone : 09886440240
Background: This study was conducted to determine an effective bolus dose of fentanyl, which would attenuate the cardiovascular response to laryngoscopy and tracheal intubation.
Materials and Methods: A randomised double blind controlled study was carried out on 50 healthy adult patients (ASA I and II) undergoing elective surgery under general anaesthesia. The patients were randomly allocated into two groups of 25 each i.e. group A and group B receiving fentanyl 3 ?g/kg, 5 ?g/kg intravenously three minutes before intubation respectively. The pulse rate, systolic blood pressure was recorded at induction, during intubation and at 1,3, 5 min post intubation.
Results:The study showed that both the doses were equally effective in blunting the pulse rate response, but the 5?g /kg proved significantly effective in blunting the blood pressure response. The rate pressure product, a measure of cardiac O2 consumption was found to be significantly lower in fentanyl 5?g/kg compared to fentanyl 3?g/kg.
Conclusion: So, we conclude that both blood pressure and rate pressure product were completely abolished by a bolus dose of fentanyl 5?g /kg in comparison with fentanyl 3?g/kg following laryngoscopy and intubation.