Anesthesia
Conditions
Brief summary
Main objective is to evaluate the sparing effect of esmolol on the required doses of propofol and remifentanil
Interventions
Same volume as in the esmolol group
1 mg/kg administrated over 10 minutes followed by an infusion of 0,2 mg/kg/hr during all the anesthetic period
Sponsors
Study design
Eligibility
Inclusion criteria
* male patients scheduled for a general anesthesia
Exclusion criteria
* age lower than 18 years * allergy to propofol, or to soja or to peanuts, or to sufentanil, to remifentanil, or to morphine, or to a myorelaxant or to an excipient, * any other history of anaphylactic reaction, * hypersensibility to sufentanil, or to remifentanil, or to other derivate of fentanyl, * hypersensibility to esmolol or to an excipient, * history of central nervous system disease, * patients receiving a psychotropic treatment or an agonist-antagonist opiate, * hypovolemic patients, * patients receiving a cardio-vascular treatment, * patients with a pacemaker, * expected bleeding more than 20% of the blood volume, * simultaneous general and loco-regional anesthesia, * patients suffering from asthma, COPD, trouble of the heart rhythm or conduction, cardiac insufficiency, cardiogenogenic shock, Prinzmetal syndrome, pheochromocytoma, * patients with a heart rate less than 50/min and/or an arterial hypotension, * neurosurgical act or any other which precludes an adequate positioning of the bispectral electrode.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| administered doses of propofol and of remifentanil during anesthesia | end of anesthesia |
Secondary
| Measure | Time frame |
|---|---|
| delay before recovery | at the end of anesthesia |
| hemodynamic abnormalities requiring a treatment | end of anesthesia |
| postoperative morphine requirement | Third post-anesthetic hour |
| explicit memorisation | Second postoperative day |
Countries
France