The effects of amiodarone on P wave dispersion in old patients with coronary neart disease and paroxysmal atrial fibrillation / 中国基层医药

ABSTRACT

Objective To study the effects and mechanism of amiodarone on P wave dispersion in preventing paroxgsmal atrial fibrillation.Methods 80 cases with coronary heart disease and paroxysmal atrial fibrillation were randomly dividedl into two groups,study groups were given amiodarone and general treatments of coronary heart disease,control group only with general treatments,to measure the maximal P wave duration(P_(max)),the minimal P wave duration(P_(min)) and P wave dispersion(P_(dis)),before administration and when administration one month,two months and three months,respectivery.Results P_(min) increased,P_(dis) got small after 3 months of adiministration of amiodarone.Compared with control group,the P_(min) of electrocardiographry of study group was obvionsly different(P