Recent perspective on coronary bifurcation intervention: statement of the "Bifurcation Club in KOKURA"

Area of Science:

• Cardiovascular Medicine
• Biomedical Engineering
• Interventional Cardiology

Background:

• Coronary artery bifurcation lesions present significant treatment challenges, persisting despite advances like drug-eluting stents.
• Restenosis and stent thrombosis are associated with geometrical factors and, crucially, rheological disturbances at the bifurcation site.

Purpose of the Study:

• To summarize the global consensus on coronary bifurcation lesion management from the Asian and European Bifurcation Clubs.
• To provide a scientific perspective on bifurcation anatomy, physiology, and pathology to guide intervention strategies.

Main Methods:

• Review and synthesis of expert consensus from international bifurcation clubs.
• Analysis of basic science principles related to coronary bifurcation hemodynamics and pathology.

Main Results:

• Low wall shear stress and turbulent flow at bifurcations contribute to atherosclerosis and stent thrombosis.
• Factors like jailed struts and metal overlap exacerbate these risks.

Conclusions:

• Future coronary bifurcation interventions must aim to restore both the anatomical structure and physiological flow patterns.
• A comprehensive understanding of bifurcation hemodynamics is essential for developing optimal intervention techniques.