摘要
Mitral regurgitation (MR) is a highly prevalent valvular heart disease globally,with untreated severe cases demonstrating associations with elevated morbidity,mortality,and adverse cardiovascular outcomes.[1,2]While transcatheter edge-toedge repair (TEER) has emerged as an alternative option for high surgical risk patients with severe MR,[3,4]severe MR of Carpentier class IIIa (characterized by restricted leaflet motion during both systole and diastole) has been considered a relative contraindication for TEER interventions due to stenosis risk and procedural complexity.[5,6]
基金
supported by the 1·3·5 Project for Disciplines of Excellence from West China Hospital of Sichuan University(ZYGD23021&23HXFH009)
Sichuan Science and Technology Program(No.2025ZNSFSC1698)
the Sichuan Provincial Cadre Health Research Program(ZH2024-103).
