Interest of Tissue Oxygen Pressure (PtiO2) Monitoring to Detect a Vasospasm Post Aneurysmal Subarachnoid Hemorrhage

Vasospasm is a current complication after aneurysmal subarachnoid hemorrhage and often and often associated with brain ischemia. This complication is difficult to detect, because clinical examination is hardly helpful in sedated patients and the performances of transcranial doppler can only detect the spasm of middle cerebral arteries. Tissue Oxygen Pressure (PtiO2) Monitoring allows early detection of brain oxygenation local modifications and of brain ischemia, via continuous monitoring. This study aims to assess the performance of the tissue oxygen pressure monitoring in detecting a vasospasm post aneurysmal subarachnoid hemorrhage.