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Revista Costarricense de Cardiología
versión impresa ISSN 1409-4142
Resumen
CASTRO, Abdón; GUTIERREZ, Rafael y O'CONNELL, Mauricio. La estenosis pulmonar valvular en lactantes menores de 4 meses: la experiencia del Hospital Nacional de Niños de San José, Costa Rica. Rev. costarric. cardiol [online]. 2000, vol.2, n.2, pp.7-10. ISSN 1409-4142.
Critically pulmonary valve stenosis in infants is an emergency. The objective of this study is to know our cases in two centers ( Costa Rica and Guatemala). Methods: we review the records of 24 infants less than four months of age, twelve of them less than one month of age and all with critically pulmonary stenosis that suffered balloon valvotomy. The range of age was from one day to three months and the weight range was 2100-6000 grams. The right ventricle pressures range from 70-217 mmHg before dilatation and decrease to 20-90 mmHg after dilatation. The transpulmonary gradient range from 35-203 mmHg and decrease to 12-90 mmHg. Perforation of the right ventricular outflow tract occur in two cases and one was brought to operation room for exploration.One patient shows complete right bundle branch block for a short period of time. Conclusion: the pulmonary valvuloplasty is a simple procedure, cheap for our area and with good results today.
Palabras clave : Pulmonary valve stenosis; criticaly; infants; balloon valvotomy.