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Updated: Sep 13, 2025
A Murine Model of Stent Implantation in the Carotid Artery for the Study of Restenosis
Published on: May 14, 2013
Probable Delayed Plaque Protrusion After Carotid Artery Stenting With a Dual-Layer Micromesh Stent
Takahiro Masutani1, Katsutoshi Takayama2, Kaoru Myouchin2
1Department of Neurosurgery, Ishinkai Yao General Hospital, Yao, Japan; Department of Neurosurgery, Nara Prefecture General Medical Center, Nara, Japan.
Background:
We report a case of a late filling defect more than 2 weeks after stenting with dual-layer micromesh stent.
Case Summary:
An 83-year-old woman presented with right hemiparesis and mixed aphasia. Cerebral angiography showed left internal carotid artery bifurcation severe stenosis. We performed carotid artery stenting (CAS) using a dual-layer micromesh stent. Carotid ultrasound performed within 1 week after CAS showed no plaque protrusion (PP); however, ultrasound performed on postoperative day 17 showed a filling defect. A closed stent was placed using a stent-in-stent technique. We submitted debris found in the filter suspected to be plaque for pathologic examination. She transferred with modified Rankin Scale 4, 2 months later from second CAS.
Discussion:
This is the first report to our knowledge to suggest by pathologic examination that a late filling defect may be delayed PP after stenting with a CASPER stent.
Take-Home Message:
This case report indicated that PP may occur more than 2 weeks after CAS.
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