1161 Baseline echocardiographic parameters associated with reintervention in children with aortic valve stenosis following balloon aortic valvuloplasty by Papneja, K, Blatman, Z, Kawpeng, I D, Wheatley, J, Osce, H, Li, B, Manlhiot, C, Fan, C P S, Lafreniere-Roula, M, Benson, L N, Mertens, L

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