Late results of pulmonary root translocation in the correction of transposition of the great arteries Resultados tardios da translocação da raiz pulmonar na correção da transposição das grandes artérias

• Published in: Revista brasileira de cirurgia cardiovascular 2003-12, Vol.18 (4), p.326-331
• Main Authors: Luciana da Fonseca, José Francisco Baumgratz, Rodrigo Moreira de Castro, Sônia Meiken Franchi, José Henrique Andrade Vila, Lílian Maria Lopes, José Pedro da Silva
• Format: Article
• Language: English
• Subjects: Pulmonary translocation; Translocação Pulmonar; Transposition of Great Arteries; Transposição das grandes artérias
• ISSN: 0102-7638; 1678-9741
• DOI: 10.1590/S0102-76382003000400006

OBJECTIVE: The purpose of this study was to evaluate the late follow-up of pulmonary root translocation, a technique that aims to avoid complications and the need of reoperations related to the Rastelli procedure, in the repair of ventriculo-arterial connection anomalies associated to pulmonary stenosis and ventricular septal defect. METHODS: Five patients, ranging from two months to three years of age, were submitted to anterior pulmonary root translocation, from April 1994 to July 1999. The surgical technique consisted of pulmonary root removal from the left ventricle and its connection to the right ventricle, after patch diversion of the blood flow from the left ventricle to the aorta, through the ventricular septal defect. The construction of the right ventricle outflow tract was completed with autologous pericardium. RESULTS: There were neither early nor late deaths. There was no need for re-intervention. The late clinical and echocardiographic follow-ups showed some growth of the pulmonary root, with no clinically significant transpulmonary valve gradient (zero to 41 mmHg) and all patients were asymptomatic. CONCLUSION: Pulmonary root translocation showed to be efficient in the repair of ventriculo-arterial connection anomalies, with ventricular septal defect and pulmonary stenosis, and it was employed even in small children, with good early and long-term results, without the need for late reoperations in this small group of patients.OBJETIVO: Este estudo tem por objetivo avaliar a evolução tardia da translocação da raiz pulmonar, técnica que visa evitar as complicações e a necessidade de reintervenções da operação de Rastelli, na correção de anomalias da conexão ventrículo arterial associados à estenose pulmonar (EP) e comunicação interventricular (CIV). MÉTODO: Cinco pacientes, com idade de dois meses a três anos, foram submetidos à translocação anterior da raiz pulmonar, no período de abril de 1994 a julho de 1999. A técnica consistiu da retirada da raiz pulmonar, com valva, do ventrículo esquerdo (VE) e a sua conexão ao ventrículo direito (VD), após o fluxo do VE ter sido direcionado para a aorta, através da CIV, com placa de teflon. A construção da via de saída do VD foi completada com pericárdio autólogo. RESULTADOS: Não houve mortalidade precoce ou tardia. Não houve necessidade de reintervenção. O seguimento clínico e ecocardiográfico tardio mostra crescimento da raiz pulmonar, sem gradiente transvalvar pulmonar clinicamente significativo (zer