Related Experiment Video
Updated: Jul 3, 2026
10:34
Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage
Published on: August 30, 2020
Extradural vertebral artery dissecting aneurysm causing subarachnoid haemorrhage
J Fandino1, Y Yonekawa, W W Wichmann
1Department of Neurosurgery, University of Hospital of Zurich, Rämistrasse 100, 8091 Zurich, Switzerland.
Summary
This case study details a rare subarachnoid hemorrhage caused by a vertebral artery dissecting aneurysm. Surgical coating of the aneurysm successfully resolved the condition and prevented rebleeding.
Area of Science:
- Neurosurgery
- Vascular Surgery
- Neurology
Background:
- Extracranial vertebral artery dissecting aneurysms are rare causes of subarachnoid hemorrhage (SAH).
- Rupture of these aneurysms presents a significant risk of rebleeding and poor neurological outcomes.
Purpose of the Study:
- To report a unique case of SAH secondary to an extradural vertebral artery dissecting aneurysm.
- To evaluate the efficacy of surgical aneurysm coating as a treatment for extracranial vertebral artery dissecting aneurysms.
Main Methods:
- A 37-year-old male patient presented with SAH due to a ruptured extradural vertebral artery dissecting aneurysm.
- Surgical intervention involved a left lateral suboccipital craniotomy with aneurysm coating.
- Post-operative angiograms were used to assess aneurysm resolution and vessel patency.
Main Results:
- The surgical procedure successfully coated the fusiform dilatation of the vertebral artery.
- Follow-up angiography at 3 months demonstrated complete aneurysm resolution and normal vessel caliber.
- This represents the second reported case of an extracranial vertebral aneurysm presenting as SAH.
Conclusions:
- Surgical coating of a dissecting aneurysm in the extracranial vertebral artery is a viable and effective technique.
- This method offers a valid surgical option for preventing rebleeding in such rare cases.
More Related Videos
Related Concept Videos
01:17Hemorrhagic Stroke l: Introduction
A hemorrhagic stroke is an acute neurological event that occurs when a weakened cerebral blood vessel ruptures, allowing blood to accumulate within or around the brain. The sudden release of blood forms a focal hematoma that increases intracranial pressure, displaces neural tissue, and can obstruct cerebrospinal fluid pathways. These effects may be compounded by intraventricular extension of the hemorrhage, cerebral edema, or compression of adjacent structures, all of which contribute to...
01:29Hemorrhagic Stroke ll: Pathophysiology
A hemorrhagic stroke develops when a cerebral blood vessel ruptures, allowing blood to escape into the surrounding brain tissue, as in intracerebral hemorrhage (ICH), or into the subarachnoid space, as in subarachnoid hemorrhage (SAH). Because the skull is a rigid compartment, the sudden presence of extravascular blood rapidly increases intracranial pressure and compresses adjacent neural structures, leading to immediate tissue injury and impaired cerebral perfusion.Mass Effect and Primary...
01:10The Arch of Aorta
The coronary arteries, originating from the ascending aorta, bifurcate from two sinuses located within the ascending aorta. Positioned just above the aortic semilunar valve, these sinuses house essential aortic baroreceptors and chemoreceptors, crucial for maintaining cardiac function. The left coronary artery and the right coronary artery branch off from the left posterior and anterior aortic sinuses, respectively.
Encircling the heart, the coronary arteries form a ring-like structure before...
Encircling the heart, the coronary arteries form a ring-like structure before...
01:21Aneurysm II: Clinical Manifestations and Diagnostic Studies
Thoracic, aortic arch and abdominal aneurysms are significant vascular conditions that can present with various clinical manifestations and lead to serious complications. Understanding these manifestations and the appropriate diagnostic studies is essential for effective management and treatment.Thoracic Aortic AneurysmsThoracic aortic aneurysms often remain asymptomatic until they reach a size that impinges on adjacent structures. They typically cause deep, diffuse chest pain that radiates to...
01:30Aneurysm I: Introduction
An aortic aneurysm is a localized outpouching or dilation at a weak point in the artery wall. It may involve different parts of the aorta, such as the abdominal aorta, aortic arch, or thoracic aorta.Etiological factorsSeveral disorders are associated with aortic aneurysms.Congenital causes, such as primary connective tissue disorders like Marfan syndrome, impact the integrity and strength of connective tissues, notably affecting the aorta. Marfan syndrome is a genetic disorder that specifically...
01:26Aneurysm III: Interprofessional Care
Aneurysm management involves either conservative medical therapy or surgical intervention, depending on the size and symptoms of the aneurysm. Conservative management is generally reserved for smaller, asymptomatic aneurysms, while larger or symptomatic aneurysms often necessitate surgical repair.Conservative Medical TherapyFor small, asymptomatic aneurysms, particularly abdominal aortic aneurysms (AAA) less than 5.5 centimeters in diameter, conservative medical therapy is recommended. This...