Key result
Catheter-based alcohol septal ablation successfully treated severe left ventricular outflow tract obstruction with systolic anterior motion of the mitral valve after mitral valve repair.
Case Report (n=1)
Catheter-based alcohol septal ablation may serve as an effective alternative to reoperation for severe LVOT obstruction with SAM following mitral valve repair in patients with hypertrophic cardiomyopathy.
May avoid reoperation in select post-MVR LVOTO with SAM; hypothesis-generating case report leaving broader applicability open.
Left ventricular outflow tract (LVOT) obstruction due to systolic anterior motion of the mitral valve (SAM) occurs in 4-5% of patients after mitral valve repair. If conservative treatment is unsuccessful, reoperation is indicated. Treatment options include repeated mitral valve repair or valve replacement and septal myectomy if hypertrophy is present. We report a case of a patient with pre-operatively undiagnosed hypertrophic cardiomyopathy who suffered from progressive dyspnea post-operation due to severe LVOT obstruction with SAM. This case was successfully treated with catheter-based alcohol septal ablation.
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Honěk et al. (2013) conducted a case report in Left ventricular outflow tract obstruction after mitral valve repair (n=1). Catheter-based alcohol septal ablation was evaluated on Treatment success. Catheter-based alcohol septal ablation successfully treated severe left ventricular outflow tract obstruction with systolic anterior motion of the mitral valve after mitral valve repair.
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