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Updated: Dec 10, 2025

A Simplified Stepwise Approach to Echo Guidance during Percutaneous Mitral Valve Repair
Published on: October 16, 2021
Improvement in Left Cardiac Function Following Mitral Valve Repair: Analyses Based on Cardiac Magnetic Resonance
Yoshihiro Hayata1, Noriyoshi Sawabata2, Takehisa Abe1
1Department of Thoracic and Cardiovascular Surgery, Nara Medical University School of Medicine, Kashihara, Japan.
Aim:
This study aimed to evaluate the structural and functional changes of left-sided cardiac chambers by cardiac magnetic resonance imaging (CMRI) in patients with chronic mitral regurgitation after mitral valve repair (MVR).
Patients And Methods:
Among 103 patients who underwent MVR, 21 showed normal left ventricular (LV) function; their pre- and postoperative left atrial (LA) and LV functions were examined by CMRI.
Results:
LV end-diastolic volume, LV end-systolic volume, and LV mass significantly were reduced postoperatively (p<0.01) and postoperative LV ejection fraction tended to decrease. LA volume parameters also significantly decreased postoperatively (p<0.01). The conduit function positively affected the LV filling volume postoperatively (p<0.01); however, no effect on the booster pump function was noted (p=0.01).
Conclusion:
Restoration of LA and LV functions after a successful MVR was not associated with structural improvement in LA and LV.
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