Perforator Infarction Immediately Distal to the Stenosis of Parental Artery: Is It Hemodynamic?

Perforator infarction accompanying intracranial atherosclerosis is usually explained by the obstruction of perforator by atheroma of the parent artery. However, the improvement of neurologic symptom after stenting is hardly explained by the concept. Here, we report a case of perforator infarction ca...

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Bibliographic Details
Published in:Journal of stroke and cerebrovascular diseases 2014-08, Vol.23 (7), p.1991-1993
Main Authors: Kim, Bum Joon, MD, Kwon, Sun U., MD, PhD
Format: Article
Language:English
Subjects:
Aged
Cardiovascular
Cerebral Arteries - pathology
Cerebral Arteries - surgery
cerebral blood flow
Cerebral Infarction - pathology
Cerebral Infarction - surgery
Constriction, Pathologic
Female
Hemodynamics
Humans
Intracranial Arterial Diseases - pathology
Intracranial Arterial Diseases - surgery
Intracranial atherosclerosis
Magnetic Resonance Imaging
MRI
Nervous System Diseases - etiology
Neurology
Stents
stroke mechanism
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Summary:Perforator infarction accompanying intracranial atherosclerosis is usually explained by the obstruction of perforator by atheroma of the parent artery. However, the improvement of neurologic symptom after stenting is hardly explained by the concept. Here, we report a case of perforator infarction caused by the unique hemodynamic condition of the poststenotic area without any plaque at the origin of perforator, which was confirmed by high-resolution magnetic resonance image. Poststenotic area with eddying flow separating the region from the main flow may hemodynamically contribute to the perforator infarction and neurologic symptom.
ISSN:1052-3057
1532-8511
DOI:10.1016/j.jstrokecerebrovasdis.2014.01.024