ArticleJACC. Case reports2026
Intravascular Ultrasound-Guided and Angiography-Guided Chimney Stenting for Proactive Coronary Protection in High-Risk TAVR.
Article in JACC. Case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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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.
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Who cites it
1 citing paper in PubMed.
- Evolving Landscapes in Mitigating Coronary Obstruction for Transcatheter Aortic Valve Replacement (TAVR).JACC. Case reports · 2026Article
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundWe report a proactive coronary protection strategy during transcatheter aortic valve replacement (TAVR) using intravascular ultrasound (IVUS)-guided decision making and chimney stenting in patients with high-risk anatomy. CASE SUMMARY: Two patients with severe symptomatic aortic stenosis and unfavorable coronary anatomy on preprocedural computed tomography underwent TAVR with planned coronary protection. Despite preserved angiographic flow after valve deployment, IVUS identified critical leaflet-to-coronary proximity in one case, whereas significant ostial compromise was detected by angiography in the other. Chimney stenting was performed, ensuring maintained coronary patency. Both patients had favorable clinical outcomes without periprocedural complications and good follow-up results. DISCUSSION: These cases highlight some limitations of angiography and the complementary value of IVUS in selected situations and support a proactive decision-making process for an imaging-guided approach to coronary protection during TAVR. TAKE-HOME MESSAGE: A proactive, imaging-guided decision-making approach to coronary protection is recommended in cases of high-risk TAVR.
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