Glycopyrrolate during sevoflurane-remifentanil-based anaesthesia for cardiac catheterization of children with congenital heart disease

I.V. glycopyrrolate 6 µg kg−1 prevents bradycardia during general anaesthesia with remifentanil and sevoflurane for cardiac catheterization in children with congenital heart disease. Administering 12 µg kg−1 of glycopyrrolate temporarily induces tachycardia and offers no additional advantage.