Comparison of Transcatheter Edge-to-edge Repair Using Echo Only with Echo Combined with X Ray for Mitral Regurgitation (ECHO-CLIP)

After detailed evaluation, patients randomized in this group will undergo TEER procedure under guidance of fully echocardiography but any fluoroscopy in the entire process.

After detailed evaluation, patients randomized in this group will undergo TEER procedure under combined guidance of echocardiography and fluoroscopy in the entire process.