Evaluation of Patient Analgesia After Bloc Serratus

Thorax traumas are very common in severe traumatology, including road accidents, representing the second most frequent site (after head injury, according to the FIRST study). These thoracic lesions are the cause of many complications (pneumothorax, hemothorax, lung infections, atelectasis). The national recommendations recommend the use of multi-modal analgesia with the use of regional loco anaesthesia for pain management and prevention of respiratory complications, including infectious complications. The loco-regional anaesthesia of choice is thoracic epidural or paravertebral block, but these techniques are not without risks, and are contraindicated in many situations (severe head trauma, patient under curative anticoagulation, pelvic trauma...). The anterior Serratus block appears to be a quality localoregional anaesthesia in thoracic surgery, and a few cases in the literature have shown an interest in severe traumatology. The investigators perform this anterior Serratus block almost systematically in patients with thoracic trauma in the Hautepierre surgical intensive care unit.