2026-01-06 アメリカ国立衛生研究所(NIH)
<関連情報>
- https://www.nih.gov/news-events/news-releases/researchers-achieve-first-minimally-invasive-coronary-artery-bypass
- https://www.ahajournals.org/doi/10.1161/CIRCINTERVENTIONS.125.016130
TAVR後の冠動脈閉塞を予防するための経皮的大動脈冠動脈バイパス移植:ヒト初のVECTOR手術
Percutaneous Aorto-Coronary Bypass Graft to Prevent Coronary Obstruction Following TAVR: First Human VECTOR Procedure
Christopher G. Bruce, MB, ChB, Vasilis C. Babaliaros, MD, Gaetano Paone, MD, Patrick T. Gleason, MD, Rim N. Halaby, MD, Jaffar M. Khan, PhD, BM BCh, Toby Rogers, PhD, BM BCh, Ellen Richter, MD, Robert J. Lederman, MD, and Adam B. Greenbaum, MD
Circulation: Cardiovascular Interventions Published: 6 January 2026
DOI:https://doi.org/10.1161/CIRCINTERVENTIONS.125.016130

Coronary artery obstruction is a devastating and frequently fatal complication of transcatheter aortic valve replacement (TAVR). Leaflet modification techniques, such as BASILICA,1 UNICORN,2and CATHEDRAL,3 or snorkel stenting may not be suitable in excessively calcified leaflets and in a very narrow aortic root with low coronary ostia.
Ventriculo-coronary transcatheter outward navigation and reentry (VECTOR) is a closed-chest, transcatheter, coronary ostial bypass procedure recently reported in animals.4 VECTOR accomplishes extra-anatomic bypass that relocates the coronary artery ostium safely away from transcatheter heart valve interference using commercial covered stents and catheter techniques resembling retrograde chronic total occlusion revascularization. We describe the first human VECTOR procedure to bypass the left main stem before TAVR.


