on January 29, 2009
Published online before print January 29, 2009, doi: 10.1161/STROKEAHA.108.532416
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Submitted on July 23, 2008
From the Division of Neurology, Department of Medicine and Therapeutics (T.W.L., A.Y.Y.C., A.Y.L.L., L.K.S.W.), and the Department of Radiology and Organ Imaging (S.C.H.Y., W.W.M.L.), Prince of Wales Hospital, The Chinese University of Hong Kong. * To whom correspondence should be addressed. E-mail: drtleung{at}cuhk.edu.hk.
Background and Purpose—A major concern of intracranial stenting is perforator infarction. It is unclear whether the sustained radial force of a self-expanding stent or subsequent stent restenosis would cause late occlusion of perforators. Methods—We compared the baseline and poststent ( Results—MCA stenting was technically successful in 23 of 24 recruited patients. No new perforator territory infarct was found in follow-up MRI scans of all recruited patients. Postoperatively, all patients reported no further TIA or stroke over a median follow-up of 15 months. Conclusions—The use of a self-expanding stent in patients with high-grade MCA stenosis may not pose a major risk to the perforators.
Accepted on August 28, 2008
Would Self-Expanding Stent Occlude Middle Cerebral Artery Perforators?
Thomas W. Leung MRCP*;
4 months) MRI scans of patients who underwent self-expanding stenting for recurrent ischemic symptoms attributed to a MCA stenosis 60%. New infarcts in the ipsilateral striatocapsular region were recorded.
Key words: intracranial stenosis • angioplasty • stenting • perforator territory infarction