• E Iannuzzi, M Iannuzzi, V Cirillo, G Viola, R Parisi, A Cerulli, and M Chiefari.
• Department of Anaesthesiological, Surgical and Emergency Sciences, Second University of Naples, Naples, Italy.
• Minerva Anestesiol. 2004 Mar 1;70(3):109-15.

AimThe aim of this study was to compare the effects on cardiovascular modifications induced by tracheal intubation when low dose infusion of remifentanil or sufentanil are used in association with propofol target controlled infusion.MethodsSixty normotensive, ASA I-II-III, Mallampati Score <3 undergoing general anaesthesia for major elective abdominal surgery, received i.m. midazolam (0.05 mg/kg) and atropine (0.01 mg/kg) 30 min before induction. They were randomly divided in a double-blind fashion into two groups receiving for induction respectively target controlled infusion of propofol (site-effect 3.0 microg/ml) and sufentanil (0.01 microg/kg/min) or remifentanil (0.1 microg/kg/ min) infusion. Rocuronium (0.6 mg/kg) was administered. Following intubation, the lungs were mechanically ventilated with an oxygen/air mixture.ResultsBispectral index score and haemodynamic variables were recorded at baseline, after induction, during intubation and 1-3-5 min after the trachea was intubated. No differences in systolic and diastolic arterial pressure were observed in the sufentanil group, while the remifentanil group showed transient systolic and diastolic variations after intubating manoeuvers. The heart rate and bispectral index score were not affected in either group.ConclusionIn healthy normotensive patients the use of a small dose of either remifentanil or sufentanil after standard midazolam premedication, proved to be an effective strategy to blunt the cardiovascular response to intubation.

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