title: Pulmonary valvoplasty--experience of 100 cases.
abstract: One-hundred patients with pulmonary valve stenosis underwent pulmonary valvoplasty, their ages ranging from 1 to 59 years. The systolic gradient across the valve ranged from 47 to 260 mm Hg (97.67 +/- 41.15) prior to the valvoplasty, and from 0 to 55 mm Hg (14.72 +/- 11.40) immediately after dilatation (P less than 0.0001). The clinical follow-up of 18.2 months of 56 patients showed a tendency for the systolic thrill to disappear, the systolic murmur became softer and there was a tendency to normalization of the electrocardiogram. A hemodynamic restudy was carried out in 54 patients and the systolic gradients across the valve ranged from 21.55 +/- 23.86. Seven patients required redilatation. In patients with hypertrophy of the infundibulum prior to valvoplasty this was observed to regress, indicating that infundibular hypertrophy is reversible.
authors.affiliation: Division of Pediatric Cardiology, Institute Dante Pazzanese of Cardiology, São Paulo, Brazil.
authors.forename: V F
authors.initials: VF
authors.lastname: Fontes
authors.forename: J E
authors.initials: JE
authors.lastname: Sousa
authors.forename: C A
authors.initials: CA
authors.lastname: Esteves
authors.forename: M V
authors.initials: MV
authors.lastname: Silva
authors.forename: M N
authors.initials: MN
authors.lastname: Cano
authors.forename: G
authors.initials: G
authors.lastname: Maldonado
mesh_terms: D000293:Adolescent; D000328:Adult; D006332:Cardiomegaly / Q000503:physiopathology; D002404:Catheterization; D002648:Child; D002675:Child, Preschool; D004562:Electrocardiography; D005260:Female; D005500:Follow-Up Studies; D006439:Hemodynamics; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D011664:Pulmonary Valve / Q000000981:diagnostic imaging / Q000503:physiopathology; D011666:Pulmonary Valve Stenosis / Q000000981:diagnostic imaging / Q000503:physiopathology / Q000628:therapy*; D011859:Radiography