electrical activity recorded using standard micro-electrode techniques showed the occurrence of arrhythmias in all preparations and the development of major alterations in conduction ( a conduction block appeared at 11 +/- 1 mn in shr vs 16 +/- 1 mn in wky , p less than 0.05 ) , and maximal upstroke velocity ( vmax values before and 3 mn after the beginning of ischemia were 229 +/- 12 to 46 +/- 7 v/s for the shr and 227 +/- 10 to 106 +/- 12 v/s for the wky ; p less than 0.001 ) .
C0003811
arrhythmias
C0018794
conduction block