Abstract Background A comprehensive evaluation of postoperative arrhythmias following surgery for congenital heart disease by continuous Holter monitoring has not been carried out. We aimed. firstly. to establish the time course of pre- and early postoperative arrhythmias by beat-to-beat analysis following cardiopulmonary bypass and. https://www.parisnaturalfoodes.shop/product-category/ult-digest-enz-immediate/