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[III-JCKP4-08] The dynamic changes of mitral valve after surgical repair of mitral regurgitation in patients with atrial septal defect
Objective
Even though spontaneous regression of MR after isolated ASD closure has been accepted, surgical repair of MV has been done in selected cases. We purposed to know the outcome of surgical repair and determine factors for good results
Methods
Sixty-one patients with ASD and MR who had surgical correction at our hospital from January 2005 to December 2014 were enrolled. The MV annular diameter, lengths of leaflets, angles of leaflets on systole and motion angle of both leaflets were measure on echo. MR was graded from 1 to 4. Surgical procedures used for MR repair were evaluated.
Results
The MR severity and MVP improved after surgery from 2.3 ± 0.7 to 1.7 ± 0.9 and from 41.8% to 16.4%, respectively. Angle of both leaflets on systole and motion angle of both leaflet were changes after surgery. In patients with postoperative MR lesser than grade 2, angle of both leaflets on systole and motion angle of posterior leaflet were significantly changed and underwent operation at earlier age (28.0 ± 18.9 vs 60.3 ± 10.1) and chordae repair (70.2% vs 25.0%). But more MAZE operation in patients with postoperative MR greater than grade 2 was found (21.3%vs 87.5%).
Conclusion
Surgical MR repair performed concomitantly with ASD closure was safe and effective. Not only prolapse but also angles of both leaflets on systole and motion angle of PML were significantly improved in patients with postoperative MR less than moderate degree. Operation at early age showed better results whereas MAZE operation showed worse results.
Even though spontaneous regression of MR after isolated ASD closure has been accepted, surgical repair of MV has been done in selected cases. We purposed to know the outcome of surgical repair and determine factors for good results
Methods
Sixty-one patients with ASD and MR who had surgical correction at our hospital from January 2005 to December 2014 were enrolled. The MV annular diameter, lengths of leaflets, angles of leaflets on systole and motion angle of both leaflets were measure on echo. MR was graded from 1 to 4. Surgical procedures used for MR repair were evaluated.
Results
The MR severity and MVP improved after surgery from 2.3 ± 0.7 to 1.7 ± 0.9 and from 41.8% to 16.4%, respectively. Angle of both leaflets on systole and motion angle of both leaflet were changes after surgery. In patients with postoperative MR lesser than grade 2, angle of both leaflets on systole and motion angle of posterior leaflet were significantly changed and underwent operation at earlier age (28.0 ± 18.9 vs 60.3 ± 10.1) and chordae repair (70.2% vs 25.0%). But more MAZE operation in patients with postoperative MR greater than grade 2 was found (21.3%vs 87.5%).
Conclusion
Surgical MR repair performed concomitantly with ASD closure was safe and effective. Not only prolapse but also angles of both leaflets on systole and motion angle of PML were significantly improved in patients with postoperative MR less than moderate degree. Operation at early age showed better results whereas MAZE operation showed worse results.