Management of Traumatic Brain Injury Due to Respiratory Arrest

Initial Presentation and Symptoms

Patients with traumatic brain injury (TBI) resulting from respiratory arrest during prolonged seizures often present with altered consciousness, ranging from confusion to coma, as measured by the Glasgow Coma Scale (GCS) 1
Neurological deficits are common, depending on the area of the brain affected, and may include cognitive, motor, or sensory impairments 1, 2
There is a potential for seizure recurrence, which may be early (within 7 days) or delayed (after 7 days), and is more likely in patients with certain risk factors such as brain contusion or acute subdural hematoma 3
Signs of increased intracranial pressure (ICP) are important to recognize, including pupillary abnormalities, hypertension, and bradycardia, and require prompt management to prevent further brain injury 4

The American College of Surgeons recommends immediate transfer to a specialized neurosurgical center for optimal management of TBI patients with complex neurological conditions 1
Initial management includes securing the airway, providing mechanical ventilation, and maintaining adequate oxygenation to prevent secondary brain injury, with a target PaCO2 between 30-35 mmHg 4
Blood pressure management is critical, with a target systolic blood pressure >110 mmHg to ensure adequate cerebral perfusion, and a cerebral perfusion pressure (CPP) >50 mmHg 6, 7
Increased ICP should be treated with osmotherapy, such as mannitol or hypertonic saline, and positioning the head at 30° elevation 4

Seizure management involves monitoring for recurrent seizures and considering antiepileptic drugs (AEDs) only in patients with risk factors for post-traumatic seizures, with levetiracetam preferred over phenytoin due to better tolerability 3
Metabolic management includes maintaining serum glucose between 8-11 mmol/L (1.4-2.0 g/L) and avoiding high-dose glucocorticoids, which can increase mortality 5, 8
Monitoring for signs of increased ICP, such as pupillary abnormalities and hypertension, is crucial, and transcranial Doppler (TCD) may be used to assess cerebral blood flow 2, 4

The risk of post-traumatic epilepsy is higher in patients with severe TBI, approximately 11.9% in the first year, and long-term neurological rehabilitation should be considered 3, 1
Respiratory control may remain abnormal, requiring monitoring for respiratory variability, and lung-protective ventilation strategies should be implemented to prevent further respiratory complications 4