To prevent secondary injury after a traumatic brain injury, what should the systolic blood pressure (SBP) be maintained above?

Maintaining systolic blood pressure (SBP) above 110 mmHg after a traumatic brain injury is crucial for preventing secondary brain injury. After such an incident, the brain is vulnerable to further damage from inadequate perfusion and oxygen delivery. An SBP of 110 mmHg or higher helps ensure sufficient cerebral perfusion pressure (CPP), which is necessary to maintain blood flow to the brain tissues.

When blood pressure is too low, this can result in diminished blood flow, exacerbating ischemia, and increasing the risk of further neurological deficits. Therefore, targeting an SBP of at least 110 mmHg is a measure that is widely endorsed in the management protocol for traumatic brain injuries to mitigate the risk of secondary injury and optimize outcomes for the patient.

Maintaining SBP at this level is particularly critical in the context of potential intracranial hypertension or other complications that may arise in the post-injury phase.