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Infratentorial Pressure Monitoring in Cerebellar Stroke: Feasibility and Prognostic Utility.
Sae-Yeon Won1, Eva Herrmann2, Anne Neumeister3
1Department of Neurosurgery, Rostock University Medical Center, Rostock, Germany. sae-yeon.won@med.uni-rostock.de.
Neurocritical Care
|October 9, 2025
Summary
Infratentorial intracranial pressure (ICP) monitoring is feasible and provides crucial prognostic data for posterior fossa pathologies, outperforming standard supratentorial ICP monitoring. A new scoring system predicts outcomes, advocating for its integration into neurocritical care.
Area of Science:
- Neurosurgery
- Neurocritical Care
- Neurology
Background:
- Supratentorial intracranial pressure (ICP) monitoring is standard but its utility in infratentorial pathologies is unclear.
- Acute posterior fossa pathologies pose unique monitoring challenges.
- Assessing infratentorial pressure dynamics is critical for patient management.
Purpose of the Study:
- Evaluate the feasibility and clinical utility of infratentorial ICP monitoring.
- Assess the clinical significance of pressure gradients between intracranial compartments.
- Develop a prognostic model for functional outcomes in posterior fossa pathologies.
Main Methods:
- Prospective cohort study across three German neurovascular centers (2021-2024).
- Enrolled 35 patients with cerebellar stroke undergoing surgical decompression and external ventricular drainage.
- Simultaneous supratentorial and infratentorial ICP monitoring for seven postoperative days; functional outcomes assessed via modified Rankin Scale.
Main Results:
- Mean infratentorial ICP was significantly higher than supratentorial ICP (11.9 vs. 8.8 mm Hg).
- Higher infratentorial ICP correlated with unfavorable functional outcomes at six-month follow-up (P=0.042).
- A novel prognostic score (age + 4*infratentorial ICP) accurately predicted unfavorable outcomes (AUC 0.88-0.89).
Conclusions:
- Infratentorial ICP monitoring reveals significant pressure gradients missed by supratentorial monitoring alone.
- This monitoring provides superior prognostic information for posterior fossa pathologies.
- Safe implementation with a 94% technical success rate supports integrating infratentorial ICP assessment into neurocritical care.
