Stroke and Aneurysm Treatment

UBNS is a world-leader in the prevention and treatment of cerebrovascular disease—an umbrella term that refers to complex disorders of the complex blood vessels of the brain. Common types of cerebrovascular disease include stroke, aneurysms, and arteriovenous malformations (AVMs).


Acute stroke occurs when a major artery carrying blood to the brain is suddenly blocked by a clot. As with a heart attack, quickly reopening the vessel to restore blood flow to the affected brain is imperative to successful treatment and recovery.

UBNS is the integral, neuroendovascular component of the renowned Kaleida Health Stroke Care Team at the Gates Vascular Institute. This specialized team is a highly-skilled multidisciplinary blend of expertly-trained neurosurgeons, neurologists, and emergency medical professionals trained in comprehensive acute stroke care.

The stroke team operates out of the Gates Vascular Institute, which was named a Designated Stoke Center by the New York State Department of Health, and is also the only hospital in Western New York to have achieved disease-specific care certification for acute stroke from the Joint Commission on Accreditation of Healthcare Organizations (JCAHO). Less than 1% of US hospitals have received this certification.

UBNS, as part of the Stroke Care Team, is committed to delivering rapid stroke treatment. Our world-renowned endovascular team, led by Drs. Elad Levy, Adnan Siddiqui, Kenneth Snyder and Jason Davies, is on-call 24-hours a day to treat any stroke patient admitted to the Gates Vascular Institute, a facility fully-equipped to provide a full gamut of comprehensive stroke treatment options using state-of-the-art, minimally invasive techniques, many of which were pioneered right here in Buffalo. Our neuroendovascular team routinely performs accurate clinical evaluation, appropriate diagnostic studies, and inra-arterial catheterization within one hour of a stroke patient’s arrival in the emergency room. This is critical, as stroke treatments are most effective in reducing damage when administered within three to six hours of symptom onset.

Intracranial Aneurysm

An intracranial aneurysm is a “ballooning” of a blood vessel that forms in the brain resulting in a dangerous weakness in the vessel wall. Approximately 5% of the general population harbors an intracranial aneurysm at any given time.

When an aneurysm in the brain ruptures it is called a hemorrhagic stroke and is the most devastating form. Evidence suggests that patients with emergent intracranial aneurysms who are transferred to comprehensive stroke centers like the Gates Vascular Institute (GVI) where specialized multidisciplinary teams and neurointensive care management are readily available fare much better than those who are treated at smaller, less specialized hospitals. In general, aneurysm patients also do best at hospitals where endovascular neurosurgeons direct every stage of patient care.

The nationally recognized neuroendovascular team at UBNS specializes in the latest coil embolization techniques as well as other cerebrovascular diseases including arteriovenous fistulas (AVFs), arteriovenous malformations (AVMs), carotid artery disease, intracranial stenosis, and vascular tumors.

Translational Research

UBNS is continually immersed in ground-breaking clinical trial research to advance the science behind the prevention and treatment of cerebrovascular disease. Our close affiliation with the Canon Stroke & Vascular Research Center, an internationally recognized hub of translational research whereby our physicians readily transfer innovations in treatment from our stroke research lab to the clinical setting for immediately observable results, offers our patients the latest innovative therapies, in addition to more conventional treatment options.

Adult Neurosurgery Locations

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  • Gates Vascular Institute

  • Summit Medical Campus

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Surgical Locations:  Sisters of Charity Hospital, Niagara Falls Memorial Medical Center, Millard Fillmore Suburban Hospital, Mercy Hospital of Buffalo, Buffalo General Medical Center, Gates Vascular Institute, Kenmore Mercy Hospital

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