Why the study?
Does pulmonary valve replacement combined with intraoperative cryoablation reduce arrhythmia propensity in patients with previous TOF repair and chronic pulmonary regurgitation?
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.
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PVR plus cryoablation may reduce arrhythmias in repaired TOF; observational data leave open need for RCTs before practice change.
Therrien et al. (2001) studied this question.
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