Research Progress of Transcatheter Aortic Valve Replacement in Aortic Valve Stenosis due to Bicuspid Aortic Valve

Patients with bicuspid stenosis often have anatomical characteristics such as elliptical valve rings, high and asymmetric valve calcification, unequal valve leaflets, and concomitant widening of the ascending aorta and/or transverse heart. These unfavorable factors are more likely to cause poor placement of transcatheter aortic valve replacement (TAVR) valves, poor expansion of valve stents, which can lead to reduced valve durability, residual perivalve leakage, rupture of valve rings and surrounding structures, and serious surgical related complications such as ascending aortic dissection. In summary, TAVR treatment for mitral stenosis is receiving increasing attention. In this manuscript, we reviewed the research progress of transcatheter aortic valve replacement in aortic valve stenosis due to bicuspid aortic valve.