refractory intracranial hypertension
Elevated intracranial pressure that persists despite standard medical and surgical interventions, requiring advanced therapeutic measures.
Full Definition
Refractory intracranial hypertension refers to persistently elevated intracranial pressure (typically >20-25 mmHg) that fails to respond to conventional first-line and second-line therapeutic interventions. Standard treatments that have been attempted typically include head elevation, sedation, osmotic therapy (mannitol or hypertonic saline), cerebrospinal fluid drainage, and hyperventilation. When these measures prove insufficient, the condition is considered refractory and may require advanced interventions such as decompressive craniectomy, barbiturate coma, therapeutic hypothermia, or experimental therapies. This condition carries a poor prognosis and represents a neurocritical care emergency requiring aggressive management. The persistence of elevated ICP despite multiple interventions indicates severe brain injury with compromised intracranial compliance and increased risk of brain herniation and death. Management requires careful weighing of potential benefits against risks of increasingly invasive interventions.
Usage
Usage note: Document all failed interventions when describing refractory status; consider ethics consultation for futility discussions.
In Context
- "Despite maximal medical therapy, the patient developed refractory intracranial hypertension requiring decompressive craniectomy." — Neurosurgical consultation
- "Management of refractory intracranial hypertension included barbiturate coma and hypothermia protocols." — ICU treatment plan