title: [Percutaneous balloon valvotomy in neonatal obstructive cardiopathy. I: critical pulmonary valvular stenosis].
abstract: Percutaneous pulmonary balloon valvotomy using one balloon or more in sequential approach was attempted in 9 no selected neonates with critical pulmonary valve stenosis between March 1985 and October 1990 (mean age 10 + 8.6 days). The procedure was successful in seven of them (78%) in whom with a 1.22 + 0.2 balloon/annulus ratio the right ventricular systolic pressure decreased from 96 to 45 mmHg (p < 0.001), the transvalvular gradient from 65 to 23 mmHg (p < 0.001); and the systemic oxygen saturation increased from 69 to 86% (p < 0.001). In one patient the valve was not crossed. Two patients underwent surgery because unsuccessful balloon valvotomy result in the immediate and mid term period: hypoplastic right ventricle in one, and inferior vena cava thrombosis that prevent a second dilation in the other respectively. The mid term follow up showed a 62% (5/8) of successful result. Although the complex methodology and complications are not uncommon, the balloon pulmonary valvotomy is a safely and effective therapy for neonates with critical pulmonary stenosis.
authors: Hospital de Pediatría JP Garrahan, Buenos Aires, Argentina.
authors: M
authors: M
authors: Cazzaniga
authors: H
authors: H
authors: Faella
authors: D
authors: D
authors: Laneri
authors: A
authors: A
authors: Sciegata
authors: R
authors: R
authors: Gamboa
authors: I
authors: I
authors: Kurlat
authors: T
authors: T
authors: Mazzuchelli
authors: D
authors: D
authors: Gutiérrez
authors: B
authors: B
authors: Mesz
mesh_terms: D000792:Angiography; D002404:Catheterization; D004452:Echocardiography; D005260:Female; D006330:Heart Defects, Congenital / Q000000981:diagnostic imaging* / Q000628:therapy; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D011666:Pulmonary Valve Stenosis / Q000000981:diagnostic imaging* / Q000628:therapy
vernacular_title: Valvotomía percutánea con balón en la cardiopatía obstructiva neonatal. Parte I: estenosis valvular pulmonar crítica.