Extracranial vertebral artery dis dissection. Medical search. Frequent questions

Most aneurysms occur singly with the most frequent sites being the circle of Willis and the bifurcation of the middle cerebral artery. (patient.info)
They are more frequent in the territory of the basilar and middle cerebral artery. (patient.info)
The remaining cases usually involve the intracranial internal carotid artery, intracranial vertebral artery, middle cerebral artery, or basilar artery. (medscape.com)
Compared with studies regarding the effect of middle cerebral artery (MCA) occlusion, 1 there have only been a few studies regarding the efficacy of revascularization in patients with symptomatic acute internal carotid artery (ICA) occlusion. (ajnr.org)
Unilateral infarction in the watershed regions, and particularly the internal border zone region, raises the possibility of ipsilateral carotid or middle cerebral artery stenosis ( figure 2 ). (bmj.com)
The alterations observed in middle cerebral artery (MCA) in the 6th decade were similar to those in the radial artery in 4th decade and that in the coronary artery in 2-3th decades [ 9 ]. (j-stroke.org)

Cervical artery dissection is dissection of one of the layers that compose the carotid and vertebral artery in the neck (cervix). (wikipedia.org)
Cervical dissections can be broadly classified as either "spontaneous" or traumatic. (wikipedia.org)
Cervical artery dissections are a significant cause of strokes in young adults. (wikipedia.org)
Signs and symptoms of a cervical artery dissection are often non-specific and can be localized or generalized. (wikipedia.org)
Cervical artery dissection has been noted to be a common cause of young adult strokes, with some sources indicating a prevalence of up to 20% in this young adult population with annual incidence rates between 2.6 and 2.9 per 100,000, although these incidences may be misleading with true incidences being higher because clinical presentations can vary, many being minor or self-limited, and thus these dissections can go undiagnosed. (wikipedia.org)
Cervical arteries, as mentioned above, consist of two pairs of arteries: vertebral and carotid. (wikipedia.org)
As such, cervical artery dissection can be further categorized based on the involvement of artery: carotid vs. vertebral, and the location of the dissection: intracranial vs. extracranial. (wikipedia.org)
The two main causes of cervical artery dissection can be broadly categorized as either spontaneous or traumatic. (wikipedia.org)
Spontaneous cervical artery dissections are dissections that occur without any trauma to the neck. (wikipedia.org)
Hereditary connective tissue diseases include autosomal polycystic kidney disease, Ehlers-Danlos syndrome, Marfan syndrome, fibromuscular dysplasia, and osteogenesis imperfecta type 1 although studies have shown that the link between hereditary connective tissue diseases and cervical artery dissection is low, ranging from 0-0.6% in one study and 5-18% in another study. (wikipedia.org)
Traumatic cervical artery dissections are dissections that occur after any sort of trauma to the neck, ranging from minor trauma such as nose-blowing or sneezing to severe trauma such as roadside accidents. (wikipedia.org)
Cervical artery dissections begin initially with a small tear in the innermost layer of the arterial wall, the tunica intima, or rupture of the vasa vasorum with bleeding within the media. (wikipedia.org)
The signs and symptoms of cervical artery dissection are often non-specific or generalized and can either develop acutely or over several days. (wikipedia.org)
Headache Visual disturbances (i.e. diplopia, ptosis) Tinnitus Neck and face pain Horner syndrome (often partial) Loss of taste Anosmia Unilateral weakness Stroke Various imaging modalities can be used for the diagnosis of cervical artery dissection. (wikipedia.org)
Treatment of cervical artery dissection: a systematic review and meta-analysis. (ejcrim.com)
Antiplatelets versus anticoagulation in cervical artery dissection. (ejcrim.com)
Predictors of delayed stroke in patients with cervical artery dissection. (ejcrim.com)
Kalashnikova L.A., Dobrynina L.A. Dissektsiya arteriy golovnogo mozga: ishemicheskiy insul't i drugie klinicheskie proyavleniya [Cervical artery dissection: ischemic stroke and other clinical manifestations]. (annaly-nevrologii.com)
Dissection of the cervical and intracranial vessels is an uncommon but increasingly recognized condition. (medscape.com)
The cervical (extracranial) internal carotid artery is affected in 75% of patients (usually approximately 2 cm distal to the bifurcation) and the extracranial vertebral artery in 15% of patients. (medscape.com)
In one community-based study, the average annual incidence of spontaneous cervical internal carotid artery dissections was 2.6 cases per 100,000. (medscape.com)
While some studies have reported that males and females are affected equally in extracranial carotid dissections, the Cervical Artery Dissection and Ischemic Stroke Patients (CADISP) group reported that cervical artery dissection was more common in men and men were older at onset. (medscape.com)
Thrombolysis in cervical artery dissection--data from the Cervical Artery Dissection and Ischaemic Stroke Patients (CADISP) database. (medscape.com)
Objective We aimed to investigate the value of three-dimensional (3D) T1 volumetric isotropic turbo spin echo acquisition (VISTA) in the diagnosis of cervical artery dissection (CAD). (bmj.com)
Spontaneous cervical artery dissection (CAD) accounts for only ∼2% of all ischaemic strokes, but it accounts for 10-25% of ischaemic strokes in young adult patients. (bmj.com)

We report an extremely rare case of spontaneous extracranial VA dissection presenting with posterior neck hematoma aggravated after cupping therapy, a treatment in traditional Oriental medicine. (bvsalud.org)
In vEDS, anatomical and pathophysiological features of the intra-cavernous internal carotid artery make it prone to shunting in the cavernous sinus, due either to a spontaneous rupture or to a spontaneous dissection with pseudoaneurysm formation. (biomedcentral.com)

Morbidity and mortality of cervicocephalic dissections vary according to the vessel and location of the dissection. (medscape.com)

They include: Carotid artery dissection, a separation of the layers of the artery wall supplying oxygen-bearing blood to the head and brain. (wikipedia.org)
True arterial aneurysms involve all three layers of the artery wall (intima, media and adventitia). (patient.info)

However, parts of the thrombus can break apart and result in emboli that can lodge themselves in distal cerebral arteries causing ischemic stroke, otherwise known as a cerebral infarction. (wikipedia.org)
The dissection presented as ischemic stroke in 175 patients and with local symptoms in the others. (annaly-nevrologii.com)

Endovascular stent-assisted angioplasty in the management of traumatic internal carotid artery dissections. (ejcrim.com)
Xianjun H, Zhiming Z. A systematic review of endovascular management of internal carotid artery dissections. (ejcrim.com)

A complete occlusion of the artery can result in cerebral ischemia as the brain is depleted of oxygen-rich blood. (wikipedia.org)
Because the brain has a pair of carotid and vertebral arteries on each side of the neck, a unilateral occlusion can be asymptomatic, as the bilateral circulation continues perfusing the brain. (wikipedia.org)
For patients without acute artery occlusion, all of them had a definite conclusion with or without dissection by T1 VISTA (n=29). (bmj.com)
However, for 17 patients with acute artery occlusion, the possibility of dissection could not be excluded for 6 of them by T1 VISTA (p=0.001). (bmj.com)
However, for some patients with total occlusion of the artery without typical imaging features of dissection, the unequivocal distinction between intramural haematoma and intraluminal thrombus may be not adequate by T1 VISTA alone. (bmj.com)
Management of acute symptomatic internal carotid artery (ICA) occlusion remains controversial. (ajnr.org)
16 In addition, the management of patients with acute symptomatic carotid artery occlusion remains controversial, though the angiographic finding of ICA occlusion reveals a spectrum of ICA occlusions, as well as a tandem lesion in the intracranial artery in addition to the level (below or above the ophthalmic artery) and type (atherosclerotic or embolic) of lesion. (ajnr.org)

The result of this tear is often an intramural hematoma and/or aneurysmal dilation in the arteries leading to the intracranial area. (wikipedia.org)
A tear in one of the layers of the arterial walls can result in blood collecting within a pocket between the layers of the artery, which can result in an intramural hematoma and/or aneurysmal dilation. (wikipedia.org)
For T1 VISTA, the diagnosis of the dissection was based on the presence of intramural high-signal, intimal flap, double lumen and aneurysmal dilation. (bmj.com)

Merckel LG, Van der Heijden J, Jongen LM, van Es HW, Prokop M, Waaijer A. Effect of stenting on cerebral CT perfusion in symptomatic and asymptomatic patients with carotid artery stenosis. (ejcrim.com)
caused by a septic degeneration of the elastic and muscular layer of the cerebral arteries. (patient.info)
They assessed the extent and severity of atherosclerosis in the aorta, coronary, carotid, and cerebral arteries, demonstrating that the cerebral arteries were free from atherosclerosis up to the fourth decade, almost 20 to 30 years later than extracranial arteries like coronary and carotid artery [ 5 - 7 ]. (j-stroke.org)
In spite of the identification of less severe patterns of ICAS than ECAS in most autopsy studies, some racial differences were noted when comparing cerebral artery specimens from western and eastern populations [ 10 , 11 ]. (j-stroke.org)
Microvascular anastomosis techniques are important for revascularization surgeries on brachiocephalic and carotid arteries and complex cerebral aneurysms and even during resection of brain tumors that obstruct major cerebral arteries. (hindawi.com)
It was shown that cerebral revascularization using extracranial to intracranial bypass may result in neurological symptoms improvement and an objective increase in regional cerebral blood flow in a selective cohort of patients with symptomatic chronic cerebrovascular ischemia [ 1 ]. (hindawi.com)

We report a case of traumatic bilateral carotid dissection leading to progressive neurological symptoms and hypoperfusion on computed tomography perfusion (CTP), despite escalation in anticoagulation, which led to emergency carotid stenting. (ejcrim.com)
In extracranial carotid dissection, 70% of cases occur in persons aged 35-50 years. (medscape.com)
Intracranial carotid dissection tends to occur particularly in adolescents and adults younger than 30 years. (medscape.com)

At the moment, there is no definitive location for the dissection, with some believing dissection initially occurs within the connective tissue and vasa vasorum of the media while others believe dissection begins with an intimal tear. (wikipedia.org)
In the absence of known connective tissue disorders, most dissections are traumatic [2] . (ejcrim.com)
Dissection occurs when blood extrudes into the connective tissue framework of a vessel wall, causing separation of the natural vessel layers. (medscape.com)

citation needed] As the arterial wall begins to tear, blood begins to enter this newly formed false lumen and the resulting hematoma formation can either narrow (stenosis) or occlude the artery, decreasing or completely blocking blood flow through the artery. (wikipedia.org)
First-line management is comprised of antiplatelet or anticoagulation therapy, but many traumatic dissections progress despite this and carry the risk of long-term complications from embolism or stenosis [3] . (ejcrim.com)
The long-term ISR and stent fracture risks were high in extracranial VA stenosis treated with balloon-expandable bare metal stents. (mayabouchenaki.com)
Stroke due to large artery stenosis-from atherosclerosis in the carotid, vertebral or intracranial vessels-is probably primarily thromboembolic secondary to thrombosis at the site of stenosis, rather than haemodynamic. (bmj.com)
for example, in a patient with a territorial infarct, finding atrial fibrillation suggests a cardioembolic cause, or finding a ipsilateral carotid stenosis suggests a large artery stroke. (bmj.com)
If the carotid duplex is negative, imaging of the more distal carotid artery with CT angiography or MR angiography may identify a stenosis. (bmj.com)

ultrasonography may have a role in the initial diagnosis of dissections if CT-A or MRA are unavailable. (medscape.com)
The final diagnosis of dissection was based on the clinical history, physical examination, and all of the imaging tests. (bmj.com)
Diagnosis of dissection was made for 20 of the 21 patients after assessing T1 VISTA. (bmj.com)
A definitive diagnosis of dissection was not made for 5 patients (including 3 patients with digital subtraction angiography) before the T1 VISTA examination. (bmj.com)
Diagnosis and treatment of acute isolated proximal internal carotid artery occlusions: a narrative review. (neurologist-odysseas-kargiotis.eu)

A dissection typically results in a tear in one of the layers of the arterial wall. (wikipedia.org)
An arterial aneurysm is a localised abnormal dilatation of an artery due to a weakness in the arterial wall. (patient.info)
Congenital saccular: arterial dilatations of less than 2.5 mm that appear in the bifurcation of the arteries of the circle of Willis. (patient.info)
In about 25% of cases, there is co-existing arterial occlusive disease in the renal or lower extremity arteries. (patient.info)
In direct CCF, internal carotid artery (ICA) wall disruption allows high-pressure blood to move into the CS, resulting in short-circuiting of the ICA arterial blood into the venous system of the CS. (biomedcentral.com)

There were no strokes in 110 patients with local symptoms due to ICA/VA dissection during the observation period. (annaly-nevrologii.com)
Hospital-based series suggest that cervicocephalic dissections are responsible for 1-2.5% of ischemic strokes in the general population and for 5-20% of strokes in individuals younger than 45 years. (medscape.com)
Dissection accounts for about 2% of all ischemic strokes and can occur after trauma or chiropractic neck maneuvers. (bvsalud.org)

The three main subtypes are: large artery stroke, cardioembolic stroke and lacunar stroke. (bmj.com)
Genetic data suggest that risk factors relating to altered coagulation are important for both cardioembolic and large artery stroke, but less so for small vessel stroke. (bmj.com)
The only few large autopsy studies were performed during the 1960s and 1970s, exploring the distribution and natural history of large artery atherosclerosis in patients with all causes of death from fetuses to adults. (j-stroke.org)

75% luminal narrowing) is much higher in the intracranial vessels than extracranial vessels [ 20 ]. (j-stroke.org)

The most common are saccular aneurysms, which are described as being berry-shaped swellings occurring at the bifurcation of arteries. (patient.info)

Although the histopathology of intracranial atherosclerotic disease resembles extracranial atherosclerosis, there are some notable differences in the onset and severity of atherosclerosis. (j-stroke.org)
Nevertheless, the histopathology of ICAS has not been well studied as extracranial atherosclerosis (ECAS), probably due to the infrequency of ICAS in Caucasians and the relative inaccessibility of intracranial arteries. (j-stroke.org)
Not only started later in life, ICAS was much slighter in the amount and extent than aorta and coronary artery atherosclerosis for all decades [ 5 , 8 ]. (j-stroke.org)

extracranial meningioma synonyms, extracranial meningioma pronunciation, extracranial meningioma translation, English dictionary definition of extracranial meningioma. (mayabouchenaki.com)
Incidental Metastatic Meningioma Presenting as a Large Liver Mass Complications of CSOM are classified into intracranial and extracranial complications. (mayabouchenaki.com)

Most ischemic symptoms (85-95%) are caused by emboli from the site of the dissection, while the remainder are due to vessel narrowing with hemodynamic insufficiency (5-15%) or a combination of both. (medscape.com)

A, Dissection of the left vertebral artery secondary to guidewire injury. (medscape.com)
Most traumatic dissections are secondary to some form of rapid decelerations injuries resulting in hyperextension or hyperflexion with rotational injury of the neck. (wikipedia.org)
Cervicocephalic dissections may occur spontaneously or secondary to major or minor trauma. (medscape.com)

See also the separate Abdominal Aortic Aneurysms , Thoracic Aortic Aneurysms , Ruptured Aortic Aneurysm and Aortic Dissection articles. (patient.info)
False aneurysms may arise following angiogram, angioplasty or at the join between a graft and the artery. (patient.info)
Comparative outcomes of physician-modified fenestrated-branched endovascular repair of post-dissection and degenerative complex abdominal or thoracoabdominal aortic aneurysms. (sc-ctsi.org)

Fibromuscular dysplasia (FMD) is an angiopathy that affects medium-sized arteries predominantly in young women of childbearing age. (medscape.com)

In intracranial carotid and vertebral dissections, subintimal tears occur more commonly, leading to formation of intramural hematomas that protrude inward and narrow the vessel lumen. (medscape.com)

Vertebral artery dissection (VAD) is a relatively rare but increasingly recognized cause of stroke in patients younger than 45 years. (medscape.com)
Clinically silent circulating microemboli in 20 patients with carotid or vertebral artery dissection. (ejcrim.com)
We aimed to evaluate the treatment results in patients with internal carotid artery (ICA) and vertebral artery (VA) dissection. (annaly-nevrologii.com)
We examined 285 patients (122 men and 163 women, mean age 37.7 ± 8.1 years) with ICA dissection ( n = 147), VA dissection ( n = 122), or a combination of both ( n = 16). (annaly-nevrologii.com)
There were no statistically significant differences in AC and AP efficacy in patients with ICA or VA dissection. (annaly-nevrologii.com)

https://financial-dictionary.thefreedictionary.com/extracranial The carotid arteries are blood vessels located on each side of your neck (carotid arteries). (mayabouchenaki.com)

In contrast, mortality rates for intracranial carotid and basilar dissections approach 70% or higher. (medscape.com)

Epidemiology, repair technique, and predictors of stroke and mortality in penetrating carotid artery injuries. (sc-ctsi.org)

Induruwa I, Bentham C, Khadjooi K, Sharma N. Computed Tomography Perfusion Can Guide Endovascular Therapy in Bilateral Carotid Artery Dissection. (ejcrim.com)

however, dissections occur more frequently in younger individuals. (medscape.com)

Angiogram of the descending aorta demonstrates the stenoses of FMD in the renal arteries bilaterally. (medscape.com)

Collateral filling of the intradural (antegrade filling) or cavernous (retrograde filling) segment of the ICA through the ophthalmic artery was considered to have collaterals via the ophthalmic artery ( Fig 2 ). (ajnr.org)

Carotid artery dissection (CAD) is a major cause of stroke in those under age 45, accounting for around 20% of ischaemic events [1,2] . (ejcrim.com)

Further studies should be conducted to clarify the long-term safety and efficacy of extracranial VA stenting. (mayabouchenaki.com)

Intracranial dissections are more common in younger males than in females. (medscape.com)

International frequency of dissection syndromes is similar to that in the United States. (medscape.com)

The extracranial vertebral artery (VA) is vulnerable to dissection and the V3 segment is the most common location for dissection. (bvsalud.org)

Vertebral artery dissection, a flap-like tear of the inner lining of the vertebral artery that supply blood to the brain and spinal cord. (wikipedia.org)

The artery wall becomes weakened and balloons out. (patient.info)
The artery wall can balloon out symmetrically to form a 'fusiform' aneurysm or there can be a local 'blow-out' to form a 'saccular' aneurysm. (patient.info)
The hallmark of dissection is hemorrhage within the vessel wall. (medscape.com)

Anatomy13

Diseases21

Analytical, Diagnostic and Therapeutic Techniques and Equipment12

Phenomena and Processes1

Disciplines and Occupations1

Humanities3

Named Groups1

Health Care1

Geographicals1

Middle cerebr6

Cervical25

Spontaneous2

Location of the dissection1

Layers of the artery wall2

Ischemic stroke2

Internal carotid artery dis2

Occlusion7

Aneurysmal dilation3

Cerebral6

Carotid dissection3

Connective tissue3

Stenosis6

Diagnosis5

Arterial5

Strokes3

Large artery3

Intracranial vessels1

Bifurcation1

Atherosclerosis3

Meningioma2

Symptoms1

Secondary3

Aneurysms3

Fibromuscular dysplasia1

Lumen1

Patients5

Neck1

Basilar1

Predictors1

Endovascular1

Occur1

Aorta1

Cavernous1

Cause of stroke1

Efficacy1

Males1

Frequency1

Segment1

Blood1

Wall3