passages.id: split_6_test_340_passage
passages.type: progene_text
passages.text: Crataegus pretreatment significantly ( p = 0.02 ) reduced the average prevalence of malignant arrhythmias ( VF + Flutter ) as observed during the 20 - min - period of reperfusion as follows : group 20 : from 89 % ( control , n = 9 ) to 51 % ( LI 132 , n = 7 ) , group 18 : from 48 % ( control , n = 8 ) to 8 % ( LI 132 , n = 8 ) .