bepridil ( 10 mumol/l ) is without effect on the threshold of ac-arrhythmia in papillary muscle , prevents the hypoxia-induced decline of the threshold of ac-arrhythmia in left atria and depresses the threshold of ac-asystole both in normoxia and hypoxia . amiodarone ( 10 mumol/l ) elevates the threshold of ac-arrhythmia both during normoxia and hypoxia in papillary muscle but only during the second hour of hypoxia in left atria .
C0002598
amiodarone
C0003811
arrhythmia