Mitral Regurgitation Associated with Secundum Atrial Septal Defect
Keywords:Mitral regurgitation, secundum atrial septal defect
AbstractIntroduction: Mitral regurgitation associated with secundum atrial septal defect is not uncommon. We
reported our experiences and also reviewed its etiologies and managements in the literatures.
Patients and Methods: Mitral regurgitation was found in 13% (12 patients) of all patients with
secundum atrial septal defect (93 patients) who were operated on during 9-year period at Yala Hospital. The
etiologies were as follows : rheumatic valve 3, prolapsed anterior leaflet 2, congenital abnormality 2, specific
pathology complex 4, and chronic infective endocarditis 1. All patients underwent closure of secundum atrial
septal defect with mitral valve repair.
Results: There was one death and one serious post-operative complication. On follow-up, the
echocardiograms showed no mitral regurgitation in 10 patients and mild mitral regurgitation in 1 patient.
Conclusion: Mitral regurgitation associated with secundum atrial septal defect could exist as an coexistent
lesion or as the result of hemodynamic change occurred in secundum atrial septal defect. Its
recognisation is important and most of them could be repaired with satisfactory results.
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