Major Determinants and Long-Term Outcomes of Successful Balloon Dilatation for the Pediatric Patients with Isolated Native Valvular Pulmonary Stenosis: A 10-Year Institutional Experience
Yonsei Medical Journal
; : 416-421, 2008.
Article
em En
| WPRIM
| ID: wpr-79511
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WPRO
ABSTRACT
PURPOSE: We report herein major determinants and long- term outcomes of balloon dilatation (BD) for 27 pediatric patients with isolated native valvular pulmonary stenosis (VPS). MATERIALS AND METHODS: From May 1997 to May 2003, 27 pediatric patients with VPS (pressure gradients> or =40mmHg) were enrolled in this retrospective study. Single-balloon maneuver was applied in 26 patients, and double- balloon maneuver in 1. After BD, the pressure gradients were documented simultaneously by pullback maneuver by cardiac catheterization and echocardiography within 24 hours, at 1- month, 3-month, 1-year, and 4-to-10-year follow-ups. RESULTS: Before BD, the echocardiographic gradients ranged from 40 to 101mmHg (61+/-19, 55), and from 40 to 144mmHg (69+/-32, 60) by pressure recordings. After BD, the gradients ranged from 12 to 70mmHg (29+/-13, 27) by pressure recording (p<0.001), and from 11 to 64mmHg (27+/-12, 26) by echocardiography within 24 hrs (p<0.001). The ratios of the systolic pressure of the right ventricle to those of the left ventricle were 55 to 157% (89+/-28, 79%) before BD, and 30 to 79% (47+/-13, 42%) after BD p<0.001). Follow-up (7.7+/-5.7, 4.5 years) echocardiographic gradients ranged from 11 to 61mmHg (25+/-11, 24). Two patients did not have immediate success owing to infundibular spasm. Improved right ventricular compliance could be accounted for the ultimate success in these 2 patients. The ultimate successful rate was 100%. CONCLUSION: BD can achieve excellent long-term outcomes in the pediatric patients with isolated native VPS.
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Assunto principal:
Estenose da Valva Pulmonar
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Fatores de Tempo
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Ecocardiografia
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Estudos Retrospectivos
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Seguimentos
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Resultado do Tratamento
Tipo de estudo:
Observational_studies
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Prognostic_studies
Limite:
Adolescent
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Child
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Child, preschool
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Female
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Humans
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Infant
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Male
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Newborn
Idioma:
En
Revista:
Yonsei Medical Journal
Ano de publicação:
2008
Tipo de documento:
Article