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Updated: May 12, 2026

Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage
Published on: August 30, 2020
[Chronic subdural hematoma (CSH) complicated by bilateral occipital lobe infarction: two case reports]
Kanae Kudo1, Masato Naraoka, Norihito Shimamura
1Department of Neurosurgery, Hirosaki University Graduate School of Medicine, Hiroshaki-city, Aomori, Japan.
Insights
Chronic subdural hematoma (CSH) can lead to severe complications. This study highlights two cases where CSH caused bilateral occipital lobe infarction, resulting in significant neurological deficits despite surgical intervention.
Area of Science:
- Neurosurgery
- Neurology
- Radiology
Background:
- Chronic subdural hematoma (CSH) is a common neurosurgical condition typically associated with favorable outcomes.
- Surgical intervention, such as burr hole drainage, is the standard treatment for CSH.
Observation:
- Two cases of CSH presented with delayed neurological deterioration.
- Patients exhibited symptoms ranging from headache and impaired consciousness to coma and gait disturbance.
- Brain CT scans revealed compressed ambient and interpeduncular cisterns, indicative of increased intracranial pressure and herniation.
Findings:
- Both patients developed bilateral occipital lobe infarction, a rare but severe complication of CSH.
- The infarction was attributed to central transtentorial herniation secondary to the mass effect of the bilateral CSH.
- Despite prompt burr hole drainage, patients experienced severe neurological sequelae.
Implications:
- This case series underscores the potential for CSH to cause devastating neurological injury beyond typical outcomes.
- Occipital lobe infarction due to herniation highlights the critical importance of timely diagnosis and management of CSH.
- Neurosurgeons and neurologists should consider this rare complication in patients with CSH presenting with neurological decline.
Abstract:
Chronic subdural hematoma (CSH) is a common disease that is treated with burr hole drainage by neurosurgeons. The outcome of CSH is mostly favorable. We treated 2 cases with bilateral occipital lobe infarction due to CSH. A 57-year-old woman was ambulatory when she visited a clinic for evaluation of headache. One hour after the CT was taken, she developed acute impairment of consciousness, so that she was referred to our hospital. The second patient was a 73-year-old woman with a history of depression who was involved in a traffic accident 5 weeks before admission to our hospital. She was at first admitted to a psychiatric hospital for evaluation of gait disturbance. Three weeks after she was admitted to the psychiatric hospital, she fell into a coma. She was referred to our hospital. Their brain CT on admission revealed compressed ambient and interpeduncular cistern and bilateral CSH. Although burr hole drainage surgery was performed, the 2 patients developed severe sequelae due to occipital lobe infarction caused by central transtentorial herniation.
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