Evidence map›Paper›PMID 42365343›Full record

ArticleJournal of medical case reports2026

Angiographically occult in-stent protrusion detected by intravascular ultrasound during carotid artery stenting: a case report.

Yuko Tsurumi, Arihito Tsurumi, Hayato Yokoyama, Norie Kikuchi, Ryusei Zako, Takaaki Ishikawa, Osamu Hososhima

Abstract readCase Reports
In one paragraph

Article in Journal of medical case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Yuko TsurumiDepartment of Neurosurgery, Tsurumi Hospital, 813 Kamikatata, Koga, Ibaraki, 306-0128, Japan.
Arihito TsurumiDepartment of Neurosurgery, Tsurumi Hospital, 813 Kamikatata, Koga, Ibaraki, 306-0128, Japan. tsurumi@tsurumihospital.com.
Hayato YokoyamaDepartment of Neurosurgery, Tsurumi Hospital, 813 Kamikatata, Koga, Ibaraki, 306-0128, Japan.
Norie KikuchiDepartment of Neurosurgery, Tsurumi Hospital, 813 Kamikatata, Koga, Ibaraki, 306-0128, Japan.
Ryusei ZakoDepartment of Neurosurgery, Tsurumi Hospital, 813 Kamikatata, Koga, Ibaraki, 306-0128, Japan.
Takaaki IshikawaDepartment of Pharmacotherapeutics, Keio University, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan.
Osamu HososhimaDepartment of Neurosurgery, Tsurumi Hospital, 813 Kamikatata, Koga, Ibaraki, 306-0128, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCarotid artery stenting (CAS) is an established revascularization strategy for carotid stenosis, but periprocedural ischemic events remain a concern. In-stent protrusion, representing plaque protrusion and/or adherent thrombus, may be clinically relevant and can be underestimated by angiography alone. Intravascular ultrasound (IVUS) provides cross-sectional visualization of the stent lumen and may detect lesions not apparent on digital subtraction angiography. CASE PRESENTATION: We report the case of a 92-year-old man of Japanese ethnicity with symptomatic right internal carotid artery tandem stenoses treated with CAS under balloon protection. Completion angiography showed no intraluminal defect; however, IVUS demonstrated marked protrusion within the distal stent. Immediate rescue with an additional overlapping stent under re-occlusion eliminated the protrusion on repeat IVUS. The patient recovered without complications and was discharged home on postoperative day 4.

conclusionsThis case highlights that IVUS may detect angiographically occult in-stent protrusion and may help guide prompt intraprocedural rescue and confirmation of lumen optimization.

Indexed as

Carotid Artery, InternalCarotid StenosisStentsUltrasonography, InterventionalAged, 80 and overAngiography, Digital SubtractionHumansMaleTreatment OutcomeCarotid artery stentingCarotid dissectionCase reportIn-stent protrusionIntravascular ultrasoundPlaque protrusionTandem stenosis

Identifiers

PMID42365343
PMCPMC13573478

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.