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Microsurgical clipping of an unusual progressive enlarging venous aneurysm associated with cerebral proliferative angiopathy.
[BACKGROUND] Cerebral venous aneurysms are usually caused by abnormalities in the venous drainage system or alterations in the venous pressure, occurring in arteriovenous fistulas, developmental venous anomalies, arteriovenous malformations…
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Analysis of the incidence of death, hemorrhage, and neurological deficit in the treatment of intracranial arteriovenous malformations (AVMs): surgery versus other treatments - a systematic review.
To evaluate the incidence of mortality, hemorrhage, and neurological deficits in treating intracranial arteriovenous malformations (AVMs) in patients over 18 through a comparative analysis of surgical approaches and other therapeutic modali…
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Application of the Technique of Inferior Temporal Gyrus Resection for Microsurgical Treatment of Arteriovenous Malformation of the Fusiform Gyrus.
Arteriovenous malformations (AVMs) consist of multiple connections between arteries and veins without a capillary bed and are characterized by an early draining vein. This pathology affects mainly young adults, and the morbimortality is cau…
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Model of Arteriovenous Malformation Created in Human Placenta for Training in Vascular Microneurosurgery.
[BACKGROUND AND OBJECTIVE] Arteriovenous malformations (AVMs) are congenital lesions, and because of their structure, complexity, flow, size, and location organization, they are lesions that require extensive anatomic knowledge and mastery …
- Use of the Inferior Frontal Sulcus for Microsurgical Resection of an Arteriovenous Malformation of the Caudate Nucleus: 2-Dimensional Operative Video.
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What are the current roles of temporary clipping in the surgical treatment of arteriovenous malformations?
[OBJECTIVE] Temporary clipping consists of a well-defined technique applied during the surgical treatment of cerebral aneurysms. However, little has been described regarding the use of transient clipping during the surgical treatment of art…
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Breaking paradigms in choroidal fissure arteriovenous malformations: Anatomical aspects, surgical subtypes, and microsurgical resection case series.
[BACKGROUND] Despite being a rare location, choroidal fissure (CF) arteriovenous malformations (AVMs) are associated with considerable morbidity and mortality, due in part to the fact that their bleeding usually occurs intraventricularly. I…
- Giant Brainstem Cavernoma in Children: Microsurgical Strategies and Neuroanatomical Implications: 2-Dimensional Operative Video.
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Vessel wall image as a marker of cerebral aneurysm instability.
[BACKGROUND] Intracranial aneurysms affect 3% of the population, with advancements in radiology enabling more diagnoses of unruptured aneurysms. The black blood magnetic resonance imaging (bbMRI) is a valuable noninvasive method to study of…
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Topographical Systematization of Human Placenta Model for Training in Microneurosurgery.
[BACKGROUND] Neurosurgical training continuously seeks innovative methods to enhance the acquisition of essential technical skills for neurosurgeons worldwide. While various training models have been employed, few truly replicate real-life …
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Superior frontal sulcus: a non-eloquent corridor for cavernomas of the internal capsule.
[INTRODUCTION] Deep cavernomas of eloquent areas, located in the region of the basal nuclei and thalamus, account for 9 to 36% of these encephalic vascular malformations. Internal capsule cavernomas are particularly challenging, as they are…
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Midbrain Cavernous Malformation: Microsurgical Nuances and an Anatomoclinical Review 2-Dimensional Video.
Midbrain cavernous malformations (MCMs) are rare and dangerous taken the important structures and tracts located in this segment of the brainstem. MCM treatment is still controversial, and surgical resection is basically indicated in cases …
- Use of the Median Sulcus Entry Zone for Microsurgical Resection of a Ruptured Cavernous Malformation of the Pons: A 2-Dimensional Operative Video.
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Case report: Delayed outflow obstruction of a DVA: A rare complication of brainstem cavernoma surgery.
[INTRODUCTION] Developmental venous anomalies (DVAs) are considered variants of normal transmedullary veins. Their association with cavernous malformations is reported to increase the risk of hemorrhage. Expert consensus recommends meticulo…
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Importance of Arachnoid Dissection in Arteriovenous Malformation Microsurgery: A Technical Note.
Intracranial arteriovenous malformations (AVMs) are congenital anomalies where arteries and veins connect without a capillary bed. AVMs are the leading cause of nontraumatic intracerebral hemorrhages in people younger than 35 years old. The…
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Posterior-Transcallosal Approach to a Choroidal Fissure Arteriovenous Malformation: Video of Adapting a "Bridging Vein Free" Corridor to This Complex Region.
Choroidal fissure arteriovenous malformations (ChFis-AVMs) are uncommon and challenging to treat due to their deep location and pattern of supply. The choroidal fissure lies between the thalamus and fornix, from the foramen of Monroe to the…
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Microsurgical Resection of Tonsillar Arteriovenous Malformation: Operative Video.
Cerebellar arteriovenous malformation (AVM) comprises 10%-15% of intracranial AVMs. Rupture often leads to devastating brainstem compression, with mortality reported as high as 67%. AVM can be a challenging disease, especially when large in…
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Orbitozygomatic Transsylvian Resection of a Craniopharyngioma: A Step-by-Step Guide.
Adamantinomatous craniopharyngioma (ACP) is a rare sellar region tumor seen in 0.5-2 cases per million persons each year, presenting a bimodal distribution that peaks at 5-15 years in children and 45-60 years in adults. Arising from embryon…
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Microsurgery for a medial left giant lesser sphenoid wing meningioma complicated by postoperative vasospasm of the ipsilateral supraclinoid carotid artery.
[BACKGROUND] Sphenoid wing meningiomas present close contact with intracranial arteries and have great potential for vascular complications. Here, we describe the case of a patient who presented a medial left giant lesser sphenoid wing meni…
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Combined treatment for a hemispheric cerebellar AVM.
Posterior fossa arteriovenous malformations (AVMs) can be a challenging disease, especially those large in size. AVMs can be treated with a combination of endovascular treatment and microsurgery. Here, the authors present the case of a 16-y…
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Microsurgical treatment for cerebellomesencephalic fissure arteriovenous malformations after multiple sessions of endovascular treatment.
[BACKGROUND] Arteriovenous malformations (AVMs) are relatively uncommon congenital vascular anomalies, and only 7-15% of AVMs occur in the posterior fossa. Most posterior fossa AVMs clinically present with hemorrhage and are associated with…
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Microsurgical Resection of a Left Supramarginal Gyrus AVM Causing Radionecrosis.
Late radiation necrosis is a rare entity presenting in 2.2% to 9% of radiation-treated arteriovenous malformations (AVMs). It occurs by a mean of 3 years following treatment. There are few reports in the literature of radionecrosis and soli…