Practice of Mechanical Ventilation in Patients With Severe Brain Injury in China

Inclusion Criteria: 1. older than 18 years 2. with severe brain injury (including severe traumatic brain injury, ischemic stroke, subarachnoid hemorrhage, spontaneous intracerebral hemorrhage, hypoxic-ischemic encephalopathy, intracranial tumor, intracranial infection and idiopathic epilepsy) 3. mechanical ventilated for at least 24 hours before the time of on-spot survey Exclusion Criteria: 1. undergoing a spontaneous breathing trial (SBT) at the time of on-spot survey 2. underwent at least once SBT in the preceding 24 hours before time of on-spot survey 3. enrolled in another trial