Does pulmonary valve replacement combined with intraoperative cryoablation reduce arrhythmia propensity in patients with previous TOF repair and chronic pulmonary regurgitation?
Pulmonary valve replacement combined with intraoperative cryoablation stabilizes QRS duration and reduces the incidence of tachyarrhythmias in patients late after Tetralogy of Fallot repair.
PVR in patients with previous TOF repair and chronic pulmonary regurgitation leads to stabilization of QRS duration and, in conjunction with intraoperative cryoablation, to a decrease in the incidence of preexisting atrial and ventricular tachyarrhythmia. When applicable, this combined approach should be used in patients late after repair of TOF.
Therrien et al. (Tue,) studied this question.