a reduction in the mean frequency of pvcs per hour , in comparison to the placebo period , from 574 +/- 535 to 100 +/- 130 , was observed after propafenone ( p less than 0.005 ) and from 629 +/- 455 to 231 +/- 280 after disopyramide ( p less than 0.008 ) .
C0151636
pvcs
C0012702
disopyramide