Intracardiac correction of tetralogy of fallot in the first year of life: short-term and mid-term results.

OBJECTIVE: To evaluate short-term and medium-term results of intracardiac correction of tetralogy of fallot in the first year of life. METHODS: From January 1996 to October 2004, 67 consecutive infants ranging in age from 1 to 11 months (mean: 7.2 months) and weighing from 4 to 10 kilograms (mean: 7.1 kilograms) underwent elective total correction of tetralogy of fallot. The surgery was accomplished with conventional cardiopulmonary bypass and moderate hypothermia. Right ventriculotomy was performed in 60 (89.5%) cases and an atriopulmonary approach was used in the other seven (10.5%) cases. RESULTS: Cardiopulmonary bypass time ranged from 35 to 147 minutes (mean: 78.8 +/- 21 minutes), and aortic clamping time ranged from 25 to 86 minutes (mean: 51.8 +/- 15.6 minutes). Transannular enlargement of the right ventricular outflow tract was needed in 50 (64.1%) patients. Gradient between the right ventricle and pulmonary artery after correction varied from 0 to 54 mmHg (mean: 15.5 +/- 10.8 mmHg). There were two (2.98%) early deaths. Follow-up of the 65 survivors ranged from 7 to 115 months (mean:44.0 +/- 35 months). There was one late noncardiac death. All other patients are asymptomatic. The actuarial survival curve at 12 years, including operative mortality, was 97%. Ten patients were evaluated by magnetic nuclear angioresonance. CONCLUSIONS: Intracardiac correction of tetralogy of fallot in the first year of life may be performed with low morbidity and mortality and good late results.

Correção intracardíaca da tetralogia de Fallot no primeiro ano de vida: resultados a curto e médio prazos / Intracardiac correction of tetralogy of Fallot in the first year of life: short-term and midium-term results

OBJETIVO: Avaliar os resultados a curto e médio prazos da correção intracardíaca da tetralogia de Fallot no primeiro ano de vida. MÉTODOS: De janeiro de 1996 a outubro de 2004, 67 crianças com idade variando de 1 a 11 meses (média: 7,2 meses) e pesando entre 4 a 10 quilos (média: 7,1 kg) foram eletivamente submetidas a correção intracardíaca da tetralogia de Fallot. A cirurgia foi realizada com circulação extracorpórea convencional e hipotermia moderada. Ventriculotomia direita foi realizada em 60 (89,5 por cento) casos e em sete (10,5 por cento) utilizou-se a abordagem do defeito pela via atriopulmonar. RESULTADOS: O tempo de circulação extracorpórea variou de 35 a 147 minutos (média:78,8 ± 21 minutos), e o tempo de pinçamento da aorta variou de 25 a 86 minutos (média: 51,8 ± 15,6 minutos). Ampliação transanular da via de saída do ventrículo direito foi necessária em 50 (64,1 por cento) casos. O gradiente entre o ventrículo direito e a artéria pulmonar, após a correção, variou de 0 a 54 mmHg (média: 15,5 ± 10,8 mmHg). Ocorreram dois (2,98 por cento) óbitos no pós-operatório imediato. O seguimento tardio variou de 7 a 115 meses (média: 44,0 ± 35 meses). Houve uma morte tardia não-cardíaca. Todos os outros pacientes estão assintomáticos. A curva de sobrevida actuarial, incluindo a mortalidade operatória, revelou que a probabilidade de sobrevida, 12 anos após a operação, é de 97 por cento. Dez pacientes foram avaliados por angiorresonânia magnética nuclear. CONCLUSÕES: A correção intracardíaca da tetralogia de Fallot no primeiro ano de vida pode ser feita com baixas morbidade e mortalidade e bons resultados tardios.

OBJECTIVE: To evaluate short-term and medium-term results of intracardiac correction of Tetralogy of Fallot in the first year of life. METHODS: From January 1996 to October 2004, 67 consecutive infants ranging in age from 1 to 11 months (mean: 7.2 months) and weighing from 4 to 10 kilograms (mean: 7.1 kilograms) underwent elective total correction of Tetralogy of Fallot. The surgery was accomplished with conventional cardiopulmonary bypass and moderate hypothermia. Right ventriculotomy was performed in 60 (89.5 percent) cases and an atriopulmonary approach was used in the other seven (10.5 percent) cases. RESULTS: Cardiopulmonary bypass time ranged from 35 to 147 minutes (mean: 78.8 ± 21 minutes), and aortic clamping time ranged from 25 to 86 minutes (mean: 51.8 ± 15.6 minutes). Transannular enlargement of the right ventricular outflow tract was needed in 50 (64.1 percent) patients. Gradient between the right ventricle and pulmonary artery after correction varied from 0 to 54 mmHg (mean: 15.5 ± 10.8 mmHg). There were two (2.98 percent) early deaths. Follow-up of the 65 survivors ranged from 7 to 115 months (mean:44.0 ± 35 months). There was one late noncardiac death. All other patients are asymptomatic. The actuarial survival curve at 12 years, including operative mortality, was 97 percent. Ten patients were evaluated by magnetic nuclear angioresonance. CONCLUSIONS: Intracardiac correction of Tetralogy of Fallot in the first year of life may be performed with low morbidity and mortality and good late results.

Cardiopatias restritivas: pericardite constrictiva X miocardiopatia restritiva / Restrictive cardiopathy: constrictive pericarditis X restrictive cardiomiopathy

No presente artigo apresentamos o relato de dois casos clínicos de crianças com cardiopatia restritiva. Pretendemos assim, lembrar que as cardiopatias restritivas podem se manifestar com apenas um único sinal de congestão

Endomiocardiofibrose / Endomyocardial fibrosis

Revisa-se a literatura no que se relaciona aos aspectos clínicos, diagnósticos e terapêuticos da endomiocardiofibrose, ralatando em paralelo sua experiência. Discutem-se pontos controversos como a etiologia da doença e enfatiza-se no tratamento a abordagem cirúrgica que vem se revelando promissora nos casos selecionados