The classical approach to evaluate the correction of the tetralogy of Fallot TOF consists in calculating the ratio between the right systolic and systemic pressure; however, with the advent of transesophageal echocardiography, new approaches have been developed.
Historia del artículo: Recibido el 8 de abril de 2012 Aceptado el 17 de julio de 2012 On-line el 1 de septiembre de 2012