BD55

Asymptomatic stenosis of intracranial or extracranial artery

Estenose assintomática de artéria intracraniana ou extracraniana

Definition

This section includes cerebrovascular disease/abnormalities/vascular or neuroimaging findings that has not caused acute cerebral symptoms. Such findings should not be regarded as simply incidental findings; asymptomatic stenosis or occlusion of the intracranial or extracranial arteries to the brain are associated with an increased risk of future cardiovascular events that may be prevented from risk factor management and in selected cases surgical or endovascular procedures (1) “Precerebral” have been changed to “extracranial” as the latter term is the one generally used in the literature. Arteries to the brain are divided into intracranial and extracranial. The carotid siphon is included in the “intracranial” part of the carotid artery as the major part of the carotid siphon is located distal to the dural passage of the artery.

Diagnostic Criteria

Signs and symptoms:

Stenosis or occlusion of cerebral or intracranial or extracranial artery that has not caused TIA or cerebral ischemic stroke

Exclusions

Transient ischaemic attack
Cerebral ischaemic stroke

Inclusions

narrowing of basilar, carotid or vertebral arteries, not resulting in cerebral infarction

Index Terms

Asymptomatic stenosis of intracranial or extracranial arterystenosis of carotid artery NOSstenosis of internal carotid artery NOSstenosis of precerebral arteries, not resulting in cerebral infarctionnarrowing of basilar, carotid or vertebral arteries, not resulting in cerebral infarctionpartial obstruction of basilar, carotid or vertebral arteries, not resulting in cerebral infarctionAsymptomatic stenosis of extracranial carotid arteryAtherosclerosis of extracranial portion of carotid arteryAsymptomatic stenosis of intracranial carotid arteryAtherosclerosis of intracranial portion of carotid arteryAsymptomatic stenosis of extracranial vertebral arteryAtheroma of extracranial portion of vertebral arteryArteriosclerotic disease of extracranial portion of vertebral arteryAsymptomatic stenosis of intracranial vertebral arteryAtheroma of intracranial portion of vertebral arteryArteriosclerotic disease of intracranial portion of vertebral arteryAsymptomatic stenosis of basilar arteryAsymptomatic stenosis of anterior cerebral arteryAsymptomatic stenosis of middle cerebral arteryAsymptomatic stenosis of posterior cerebral arteryAsymptomatic stenosis of certain specified intracranial or extracranial arteryinternal auditory artery embolismCerebral atherosclerosisarteriosclerotic cerebrovascular disordercerebrovascular atherosclerosisarteriosclerotic cerebral ischaemiaarteriosclerotic brain diseaseatherosclerotic brain diseasecerebral arteriosclerosiscerebrovascular atheromatous diseaseatherosclerotic cerebrovascular diseaseVertebral arterial arteriosclerotic disease

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