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Comprehensive Endovascular and Open Surgical Management of Cerebral Arteriovenous Malformations
Published on: October 20, 2017
Harvey W. Cushing and cerebrovascular surgery: Part II, Vascular malformations
Aaron A Cohen-Gadol1, Dennis D Spencer
1Department of Neurologic Surgery, Mayo Clinic and Mayo Foundation, Rochester, Minnesota, USA. cohengadol.aaron@mayo.edu
Insights
Early neurosurgeons faced challenges treating cerebrovascular malformations. Harvey Cushing pioneered surgical techniques and radiation therapy for these complex vascular lesions.
Area of Science:
- Neurosurgery
- Vascular Malformations
- Cerebrovascular Diseases
Background:
- Early neurosurgeons considered cerebrovascular malformations as tumors.
- Harvey Cushing's initial work involved resecting arteriovenous malformations.
- Pre-angiography limitations made understanding malformation pathoanatomy difficult.
Discussion:
- Cortical vein ligation was an early, often catastrophic, surgical approach.
- Cushing advocated for radiation therapy and decompressive craniectomy.
- Understanding angioarchitecture led to ligating feeding vessels and carotid arteries.
Key Insights:
- Cushing demonstrated positive outcomes with radiation for vascular malformations.
- Preoperative diagnosis was crucial due to surgical limitations.
- Radical resection of non-irradiated malformations was highly challenging.
Outlook:
- Historical surgical techniques evolved with improved understanding.
- Cushing's work laid foundations for modern neurosurgical interventions.
- Advancements in diagnostic tools have refined treatment strategies.
Abstract:
The surgical treatment of cerebrovascular malformations intrigued early neurosurgeons. Cushing defined vascular malformations as tumors arising from cerebral blood vessels. He successfully resected the first arteriovenous malformation 3 years after it had been irradiated. In the absence of angiography, the pathoanatomy of these lesions remained elusive and early techniques such as cortical vein ligation proved catastrophic. Cushing demonstrated the favorable results of radiation treatments on vascular malformations and advocated decompressive craniectomy followed by radiotherapy. He ligated cortical feeding vessels and external carotid arteries with an improved understanding of the angioarchitecture of vascular malformations. He stressed the importance of preoperative diagnosis because the radical resection of nonirradiated vascular malformations challenged the limitations of the available neurosurgical armamentarium.
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