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KMID : 1140320190030040158
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Precision and Future Medicine
2019 Volume.3 No. 4 p.158 ~ p.164
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Outcomes and dynamic changes of the mitral valve after surgical repair of mitral regurgitation in patients with an atrial septal defect
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Lee Ok-Jeong
Song Jin-Young
Huh June
Kang I-Seok
Yang Ji-Hyuk
Jun Tae-Gook
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Abstract
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Purpose: We purposed to determine the outcomes of surgical mitral valve repair in patients with atrial septal defect(ASD) and mitralregurgitation (MR) and determine factors associated with good outcomes.
Methods: Sixty-one patients after operation for ASD and MR were enrolled. Mitral valve annular diameter, lengths of mitral leaflets, and motion angles of both leaflets were measured on echocardiographic images.
Results: The severity of MR and mitral valve prolapse improved after surgery from 2.3± 0.7 to 1.7±0.9 and from 41.8% to 16.4%,respectively. In patients with postoperative MR grade <3, angles of both leaflets on systole and motion angles of the posterior leaflet were changed. Operation at an earlier age (28.0±18.9 years vs. 60.3±10.1 years) and chordae repair (70.2% vs. 25.0%) were performed more frequently in patients with postoperative MR grade <3. More MAZE operations were performed in patients with postoperative MR grade ≥3 (21.3% vs. 87.5%).
Conclusion: Operation age, MAZE operation, and chordae repair affected postoperative MR. Not only prolapse, but also the angles of both leaflets on systole and the motion angle of PML were significantly improved in patients with postoperative MR grade <3.
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KEYWORD
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Heart septal defects, atrial, Mitral valve insufficiency, Mitral valve repair
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