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We report the case of a neonate with a rare association of tetralogy of Fallot and aortic valve stenosis, who died following percutaneous balloon valvuloplasty. Postmortem examination confirmed a tetralogy of Fallot morphology with a markedly hypoplastic pulmonary tree, hypertrophy of both ventricles, and a thickened and dysplastic aortic valve. Valvuloplasty was not effective despite the presence of a fissure in the cusp. The findings suggest that the left ventricular impairment and associated anomalies, with or without a dysplastic valve may contribute to the failure of balloon valvuloplasty in neonates with critical aortic valve stenosis.

Rare Association of Tetralogy of Fallot and Aortic Valve Stenosis. Autopsy Findings after Failed Ballon Aortic Valvuloplasty.