Which is the leading cause of death from head trauma in patients who reach the hospital alive?

Which is the leading cause of death from head trauma in patients who reach the hospital alive?

• A. Seizures
• B. Brain edema
• C. Hypotension
• D. Increased intracranial pressure

Answer: (D)

In head trauma, the most lethal process after the patient reaches the hospital is the rise in intracranial pressure that can lead to brain herniation. The skull is a fixed space, so swelling from the injury, bleeding, and edema increases pressure inside the skull. As ICP climbs, cerebral perfusion pressure (CPP = mean arterial pressure minus ICP) falls, starving brain tissue of blood flow and causing ischemia. This sets off a vicious cycle of swelling and damage. If ICP rises enough, brain tissue can be forced to shift (herniate), compressing the brainstem and centers that regulate vital functions, which is frequently fatal. Seizures and edema contribute to the problem, and hypotension worsens outcomes, but the direct fatal mechanism in these patients is uncontrolled intracranial pressure leading to herniation, making increased intracranial pressure the best answer.

In head trauma, the most lethal process after the patient reaches the hospital is the rise in intracranial pressure that can lead to brain herniation. The skull is a fixed space, so swelling from the injury, bleeding, and edema increases pressure inside the skull. As ICP climbs, cerebral perfusion pressure (CPP = mean arterial pressure minus ICP) falls, starving brain tissue of blood flow and causing ischemia. This sets off a vicious cycle of swelling and damage. If ICP rises enough, brain tissue can be forced to shift (herniate), compressing the brainstem and centers that regulate vital functions, which is frequently fatal. Seizures and edema contribute to the problem, and hypotension worsens outcomes, but the direct fatal mechanism in these patients is uncontrolled intracranial pressure leading to herniation, making increased intracranial pressure the best answer.