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[Intracranial arteriovenous malformations in Taiwan]
Journal of the Formosan Medical Association = Taiwan Yi Zhi
|December 1, 1993
Summary
Intracranial arteriovenous malformations (AVM) affect 2.5%-4.8% of Taiwanese hemorrhagic stroke patients, primarily those aged 10-40. Surgical intervention offers a better prognosis for treating AVM compared to historical medical management.
Area of Science:
- Neurology
- Neurosurgery
- Epidemiology
Context:
- Intracranial arteriovenous malformations (AVM) represent a significant cause of hemorrhagic stroke.
- Understanding the epidemiology and clinical presentation of AVM in Taiwan is crucial for effective patient management.
Purpose:
- To analyze the available literature on intracranial AVM in Taiwan.
- To determine the incidence, symptoms, and risk factors associated with intracranial AVM.
- To evaluate treatment outcomes for intracranial AVM.
Summary:
- The incidence of intracranial AVM in Taiwanese patients with hemorrhagic stroke ranges from 2.5% to 4.8%, with a male-to-female ratio of 1.5:1.
- Common symptoms include sudden headache, vomiting, and altered consciousness, with a higher likelihood of focal neurological deficits compared to intracranial aneurysms.
- Small AVMs are more prone to bleeding, and risk factors like hypertension or diabetes show no strong correlation. Pregnancy is not a risk factor in women without prior hemorrhage history.
- Surgical treatment, enhanced by modern microsurgical techniques, demonstrates a better prognosis than historical medical management for intracranial AVM.
Impact:
- Provides essential epidemiological data on intracranial AVM in Taiwan.
- Assists clinicians in recognizing and diagnosing AVM.
- Highlights the improved outcomes associated with contemporary surgical AVM treatment.