In suspected raised intracranial pressure due to traumatic brain injury, what is the initial management priority?

• A. Airway protection with adequate oxygenation and blood pressure, elevate head of bed, avoid hypotension; consider hyperosmolar therapy if indicated.
• B. Immediate surgical decompression for all patients.
• C. Initiate high-dose steroids in all cases.
• D. Begin aggressive diuresis regardless of status.

Answer: (A)

The main idea is preserving brain oxygen delivery and blood flow while starting measures to reduce pressure. In suspected raised intracranial pressure after a traumatic brain injury, the top priority is securing the airway and ensuring adequate oxygenation and perfusion to prevent further brain injury. This means intubating if needed to maintain good oxygen levels, keeping PaO2 above the threshold that prevents hypoxemia, and avoiding hypotension to maintain cerebral perfusion pressure.

Elevating the head of the bed to about 30 degrees and keeping the head and neck in a midline position helps venous drainage and can lower ICP. If ICP is elevated or there are signs of impending herniation, hyperosmolar therapy (such as hypertonic saline or mannitol) can be used to draw fluid out of swollen brain tissue and reduce ICP, but it’s not used indiscriminately in every patient.

Surgery is not the initial step for all patients; decompression is reserved for specific mass lesions or refractory intracranial hypertension after stabilization. Steroids have not shown benefit in traumatic brain injury and can harm, and aggressive diuresis without regard to status can worsen brain perfusion.