RESUMO
We report a case of a young man with hypoplastic right ventricle, who presented with recurrent untreatable arrhythmias after a Bjork Fontan procedure in infancy. He underwent one-and-a-half ventricle repair as an alternative surgery to Fontan revision.
Assuntos
Procedimentos Cirúrgicos Cardíacos/métodos , Cardiopatias Congênitas/cirurgia , Ventrículos do Coração/anormalidades , Adulto , Arritmias Cardíacas , Fibrilação Atrial , Ponte Cardiopulmonar , Diagnóstico por Imagem , Técnica de Fontan , Cardiopatias Congênitas/diagnóstico , Ventrículos do Coração/cirurgia , Humanos , Masculino , Recidiva , Resultado do TratamentoRESUMO
Despite the fact that sheep are a widely used animal model in cardiovascular research, reference values for transthoracic echocardiography in normal growing animals are not available. Eight healthy female lambs underwent two-dimensional, M-mode and pulsed wave Doppler echocardiographic examination at 100 days of age and every three months thereafter over a 12-month period. The study was conducted under sedation with midazolam, butorphanol and constant rate infusion of intravenous propofol. Their growth phase was completed at about one year of age. All the echocardiographic parameters considered were significantly correlated with body weight and age class except for the left ventricular systolic and diastolic diameters. Functional indices were not correlated to body weight or age except for the E-point to septal separation distance (EPSS). Doppler-derived parameters were not influenced by independent variables. Transthoracic echocardiography can be considered an applicable method for cardiovascular research using a growing lamb animal model after appropriate adjustments for age and body size.