4 in langendorff-perfused guinea-pig hearts , only lorcainide provided complete protection against ouabain-induced ventricular fibrillation , while 6 of 6 , 3 of 6 and 2 of 6 hearts fibrillated in the presence of encainide , lignocaine and org 6001 respectively , but with infusion durations significantly higher than control .
C0042510
ventricular fibrillation
C0023660
lignocaine