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Changes in intracranial pressure associated with delayed cerebral radionecrosis
Surgical Neurology
|July 1, 1984
Summary
B-waves and ramplike waves in intracranial pressure monitoring may originate from neurogenic factors, not just elevated pressure. This finding challenges previous assumptions about wave origins in delayed temporal radionecrosis.
Area of Science:
- Neurology
- Neurosurgery
- Radiation Oncology
Background:
- Delayed temporal radionecrosis can occur after pituitary gland irradiation for Cushing's type adiposity.
- Intracranial pressure (ICP) monitoring is crucial for assessing neurological conditions.
Observation:
- Continuous ICP recording revealed B-waves and ramplike waves in a patient with delayed temporal radionecrosis.
- These waves occurred despite the absence of elevated intracranial pressure.
Findings:
- The observed B-waves and ramplike waves in this case suggest a potential neurogenic origin.
- Ventriculo-atrial shunting did not alleviate severe psychic symptoms, indicating direct tissue damage.
Implications:
- This study suggests B-waves may have a neurogenic basis, distinct from hydrostatic pressure changes.
- Understanding the origin of these waves is critical for managing neurological complications after radiation therapy.