Hemodynamic Stability
Conditions
Keywords
hemodynamic stability, xenon, carotid surgery, general anesthesia
Brief summary
The purpose of this study is to compare the hemodynamics effects of two usual hypnotic agents (LENOXe ™ (xenon 100 % v/v) and sevoflurane) during a general anesthesia for carotid endarterectomy in elderly patients. The hypothesis is that the use of the LENOXe ™ (xenon 100 % v/v) allows to obtain per-operating hemodynamic stability non inferior than with sevoflurane.
Interventions
Inhalational gas; dose allowed: 60 % Xenon; the duration of the treatment will be defined through anesthesia-time for a carotid surgery
Inhalation gas; dose allowed: 1,4 %; the duration of the treatment will be defined through anesthesia-time for a carotid surgery
Sponsors
Study design
Eligibility
Inclusion criteria
* Patients \> 55 years, status ASA II * Carotid endarterectomy elected surgery * Signed informed consent
Exclusion criteria
Related to the patients: * Histories of hypersensibility in both products used in the study * uncontrolled arterial High Blood Pressure in the preoperative anaesthesia screening * Severe cardiac failure (FEVG \< 30 %) * Major lung or airways disease and\\or required per-operating FiO2\> 35 % * Elevated intracranial pressure * Pregnancy, breast feeding * Major protected, under supervision, under guardianship * Every patient entering within the framework of the contraindications indicated to §4.3 of the summary of the characteristics of tested products (LENOXe ™ (xenon 100 % v/v), sevoflurane) Related to the surgery: * Controlateral carotid stenosis superior to 70 % and\\or preoperative indication in the implementation per-operating of a carotid shunt * Surgery realized within the framework of an emergency * Combined Surgery
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Standard deviation of the values of systolic blood pressure (SBP)collected per-operatively every minutes(BIOPAC ® MP150) Values of SBP over or under thresholds during and out of the clamping period, if so vasopressive/ hypotensive treatment used | Pre-op, every min from 1-90 min during maintenance phase |
Secondary
| Measure | Time frame |
|---|---|
| cardiovascular, general, hepatic and renal tolerance to xenon. Quality and time of awakening, recovery index (IR);Post-op pain (EVA)and consumption of analgesic; Inflammatory Syndrome (cytokine profile); Subjective comfort of the patient | During the whole anesthetic procedure and the postoperating time until 24 hours after discharge from the recovery room / intensive care unit and return to the ward |
Countries
France