This protocol targets a high-risk presentation of spontaneous intracerebral hemorrhage: large intraventricular hemorrhage with clinical hydrocephalus and an impaired level of consciousness, where GCS exceeds 3 and ICH volume is under 30 mL.
The defining features of this subgroup are:
In this combination, external ventricular drainage alone is recommended over medical management to reduce mortality — but the structured protocol goes further.
This scenario calls for a minimally invasive strategy directed at the intraventricular clot, in combination with external ventricular drainage. The approach adds a controlled pharmacological component administered directly into the ventricular system — going beyond EVD placement alone.
DOI: 10.1161/STR.0000000000000407
For patients with spontaneous ICH, large IVH, and impaired level of consciousness, EVD is recommended in preference to medical management alone to reduce mortality.
For patients with a GCS score >3 and primary IVH or IVH extension from spontaneous supratentorial ICH of <30-mL volume requiring EVD, minimally invasive IVH evacuation with EVD plus thrombolytic is safe and is reasonable compared with EVD alone to reduce mortality.
In patients with IVH obstructing the third or fourth ventricle and small- to moderate-volume ICH (<30 mL), controlled irrigation with a thrombolytic agent such as alteplase or urokinase improves survival in patients with clinical hydrocephalus requiring a routinely placed EVD.
However, a low proportion of participants achieved near-complete clot removal, and functional benefit was reported from removing greater amounts (>85%) of IVH volume.
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