ArticleCurrent medical imaging2026
Stent Geometry Matters: Impact of Tapered
Article in Current medical imaging, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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.
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.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionCarotid Artery Stenting (CAS) is an established alternative to carotid endarterectomy, particularly in patients with elevated surgical risk. Hemodynamic Depression (HD) is a common complication that is usually transient; however, persistent HD may compromise cerebral perfusion. The specific impact of stent geometry on persistent HD remains underexplored.
methodsThis retrospective study included 109 patients who underwent primary CAS between October 2020 and October 2023. HD was defined as intraoperative hypotension (systolic blood pressure < 90 mmHg) and/or bradycardia (heart rate < 60 bpm), while persistent HD was defined as lasting more than 24 hours despite medical therapy. Patients were evaluated according to stent geometry (straight vs. tapered), carotid bulb involvement, plaque characteristics, and procedural variables. Multivariable logistic regression was performed, adjusting for demographic, clinical, anatomical, and procedural factors.
resultsPeriprocedural HD occurred in 40.4% of patients, and persistent HD in 25.7%. Persistent HD was significantly more frequent in patients treated with straight stents than in those treated with tapered stents (39.5% vs. 18.6%). Carotid bulb involvement and the use of a straight stent were significantly associated with persistent HD. In multivariable analysis, straight stent use (OR: 1.446; 95% CI: 1.041-2.018) and carotid bulb involvement (OR: 1.490; 95% CI: 1.102-2.015) remained independently associated with persistent HD. Twelve-month clinical outcomes did not differ between stent groups. DISCUSSION: Persistent hemodynamic depression after carotid artery stenting appears to be influenced not only by patient-related factors but also by procedural characteristics, particularly stent geometry and carotid bulb anatomy. The independent association of straight stent use with prolonged hemodynamic instability underscores the clinical relevance of device selection beyond technical success. Incorporating anatomical conformity into preprocedural planning may reduce prolonged baroreceptor-mediated instability and improve periprocedural safety.
conclusionPersistent HD is a clinically relevant complication after CAS. Individualized stent selection may help reduce prolonged hemodynamic instability.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.