Monitoring and Management of Intracranial Pressure in Stroke Patients

Intracranial Pressure Monitoring

The American Heart Association recommends ICP monitoring for patients with Glasgow Coma Scale (GCS) score ≤8, clinical evidence of transtentorial herniation, significant intraventricular hemorrhage (IVH), or hydrocephalus 1
A cerebral perfusion pressure (CPP) of 50-70 mmHg is reasonable to maintain, depending on the status of cerebral autoregulation 1
Ventricular drainage is recommended as treatment for hydrocephalus, especially in patients with decreased level of consciousness 1
Two main types of ICP monitoring devices are used: ventricular catheters (VC) and parenchymal catheters, with VC allowing both monitoring and therapeutic CSF drainage 1
Before insertion of any monitoring device, the patient's coagulation status should be evaluated, and prior use of antiplatelet agents may justify platelet transfusion 1

The American Heart Association suggests that TCD can detect intracranial vessel abnormalities, including occlusions and stenoses, though with lower accuracy than CTA and MRA 2
TCD has shown ability to predict and enhance intravenous rtPA outcomes in acute ischemic stroke, and can provide continuous, real-time imaging to determine timing of recanalization and occurrence of reocclusion 2
Increased ICP and decreased CPP give rise to characteristic changes in the Doppler waveform, specifically a decrease in diastolic velocity and an increase in the pulsatility index 4

Initial management steps include elevating the head of the bed to 20-30 degrees, ensuring proper airway management, avoiding hypoxia, hypercarbia, and hyperthermia, and restricting fluids mildly 3
Hypertonic saline (3%) has demonstrated rapid ICP reduction in patients with clinical transtentorial herniation 3
Corticosteroids should NOT be administered for treatment of elevated ICP in intracerebral hemorrhage (ICH) 1