[Anesthesia for intracranial aneurysms treated by endovascular approach: 31 cases].

: Midazolam perfusion associated to fentanyl injections induces a sedation sufficient to allow balloon progression through vessels as far as aneurysm, an often long procedure, even for very anxious or neurological damaged patients. At the same time, sedation lightening as well as specific antagonists naloxone or flumazenil can reverse such a sedation to permit a reliable neurological examination after the balloon dilatation which is necessary too. Nevertheless this sedation requires to take great care to install patient and to use a tele-monitoring.