The pacing treatment of atrial fibrillation

摘要

The incidence of atrial fibrillation(Af)is on the first position in arThythmia and thetreatment is very difficuit The method of non-drug to prevent Af has been extensively paidattention to of late years.It is a relatively new idea to treat Af by means of pacing.In thispaper,we made a research to the Af’s pacing treatment in 3 different conditions.The resultshowed that this method of pacing treatment Afis feaslble.In a long follow-up survey,we divided the patients into 3 groups:(1) group VVI:76 casesin all,in which 40 cases of male and 36 cases of female.All the pacemakers are unicameralVVI.(2) group AAI:46 cases in all,in which 30 cases of male and 16 cases of female.Allthe pacemakers are unicameral AAI.(3) group DDD:25 cases in all.in which 15 cases ofnude and 10 cases of female.All the pacemakers are double cameral DDD.We made afollow-up survey every 3 or 6 months after the pacemaker implantation and examined theclectrocardiogram(ECG).tested and carried out program control to the pacemaker.Theresults showed that the recunence rate of Af in VVI group is 41%,in AAI group is 4%,inDDD group is 5% This result is similar to the reports concemed overseas.It means that thepacing position had remarkable influence to the Af.In addition,the pacing treatment of Af also has some relationship pacing frequency.Itwas found in the follow-up study that the higher the frequency is,the lower the Af’srecurrence rate be comes,The reason may be that the atrium’s vulncrable period is shortedwith the pacing frequency increasing and finally prevent Afs taking place.The primary factors that influence Af are as follows:(1)the size of atrium,(2) theexistence of structural conduction and the existence of dispersive refractory period.(3)thepulse’s wave length.In a word,we think that different pacing position can influence Af’s happening,and thepacing with high frequency also has a definite effect to prevent At’s recurrence.