U.S., Nov. 6 -- ClinicalTrials.gov registry received information related to the study (NCT07918937) titled 'Multi-center Study of Three-Dimensional Transesophageal Echocardiography in Patients With Secondary Mitral Regurgitation' on Oct. 30.

Brief Summary: Three-dimensional transesophageal echocardiography (3D-TEE) enables detailed assessment of mitral valve anatomy, annular geometry, and regurgitation. This prospective multicenter observational study will evaluate atrial secondary mitral regurgitation (A-SMR) using 3D-TEE combined with transthoracic echocardiography. The study aims to characterize regurgitation severity and associated factors and compare mitral valve structure and left ventricular function between patients and controls. I...