Achieving the optimal sedation level for patient management is not always possible using our standard intravenous medications in Pre-hospital Emergency medicine. Inhaled sedation is possible with the Anesthetic-conserving device with a standard respirator.

The pharmacodynamics and pharmacokinetics of halogenated agents allow deep sedation quickly after absorption.

The feasibility of inhaled sedation has never been studied in hospital.

Retrospecive clinical monocentric study with sedated ventilated patients with isoflurane with the AnaConda® system out of hospital.

Inclusion Criteria:

• Patient sedated by isoflurane with Anesthetic-conserving device in pre-hospital
• Major patient
• not opposed to participating

Exclusion Criteria:

• Adults Under legal protection
• patient refusal to participate in study

patients who were sedated by isoflurane with Anesthetic-conserving device in pre-hospital by the emergency teams of SAMU 29

All collected data that underlie result in a publication

Data will be available beginning three months and ending five years following the publication

Data access requests will be rewiewed by internal committee of Brest UH. Requestors will be required to sign and complete a data access agreement.