Related Experiment Video
Updated: Jun 18, 2026
18:50
Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment
Published on: September 25, 2009
Distal anterior cerebral artery aneurysms
Martin Lehecka1, Reza Dashti, Hanna Lehto
1Department of Neurosurgery, Helsinki University Central Hospital, Topeliuksenkatu 5, 00260 Helsinki, Finland. martin.lehecka@hus.fi
Acta Neurochirurgica. Supplement
|December 3, 2009
Summary
Distal anterior cerebral artery (DACA) aneurysms are best treated with microsurgical clipping, offering durable results. Endovascular coiling has higher complication rates and lacks long-term efficacy data for these specific aneurysms.
Area of Science:
- Neurology
- Neurosurgery
- Vascular Imaging
Background:
- Distal anterior cerebral artery (DACA) aneurysms, also known as pericallosal artery aneurysms, constitute approximately 6% of all intracranial aneurysms.
- These aneurysms are located on the A2-A5 segments of the anterior cerebral artery and its distal branches.
Purpose of the Study:
- To summarize current knowledge on DACA aneurysms.
- To review radiological features, treatment options, outcomes, and long-term follow-up.
Main Methods:
- Literature review and synthesis of existing data on DACA aneurysms.
- Analysis of treatment modalities including microsurgical clipping and endovascular coiling.
Main Results:
- DACA aneurysms typically present with small size, broad base, and basal branches.
- Ruptured aneurysms frequently cause intracerebral hematoma.
- Microsurgical clipping is preferred over endovascular coiling due to location and morphology, yielding comparable or better results with fewer complications.
Conclusions:
- Microsurgical clipping provides durable treatment with a low recurrence rate for DACA aneurysms.
- Long-term efficacy data for endovascular coiling is currently unavailable.
- Ruptured DACA aneurysm outcomes depend critically on initial bleeding severity and patient age.
More Related Videos
Related Concept Videos
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...
01:26Arteries of the Head and Neck
The human body's intricate network of arteries ensures that every organ system receives the necessary oxygen and nutrients for optimal function. The arterial network in the head and neck region is particularly complex, providing vital blood flow to the brain, eyes, and other critical structures. Prominent arteries in this region include the internal carotid arteries and the vertebral arteries.
The internal carotid arteries supply blood to the anterior portion of the cerebrum. They enter the...
The internal carotid arteries supply blood to the anterior portion of the cerebrum. They enter the...
01:27Atherosclerosis II: Clinical Manifestations and Diagnostic Tests
Atherosclerosis is a progressive disorder that leads to the thickening and narrowing of arterial walls due to plaque buildup. This condition can cause various symptoms depending on the arteries affected:Coronary Artery Disease (CAD): This condition affects the coronary arteries and may lead to chest pain (angina), shortness of breath (dyspnea), heart attacks, and other heart disease symptoms.Cerebrovascular Disease: This affects blood flow to the brain, causing transient ischemic attacks (TIAs)...