摘要
测定了２０例老年人的房室传导功能（ＡＶＣＦ），并与２０例非老年正常成人作了对比研究。结果表明：老年人在自主神经阻滞（ＡＮＢ）后，房室传导系统（ＡＶＣＳ）有效不应期（ＥＲＰ）及ＳＲ都显著长于对照组，文氏点、２∶１阻滞点显著小于对照组。且ＡＮＢ后，对照组各参数均有显著变化，而老年组仅表现ＡＶＣＳＥＲＰ缩短，２∶１阻滞点增大。提示老年人ＡＶＣＳ的传导性和不应性都有生理退变，植物神经的调节反应也有迟钝退化。
The atrioventricular conductive function (AVCF) of the 20 elderly and 20 normal adults was compared.The results showed that:(1)After automatic nervous block (ANB) the atrioventricular conductive system (AVCS) effective refractory period (ERP) and SR duration (SR) were significantly longer,wenckebaches point and 2∶1 block poink were significantly less than that of the controled group.(2)After ANB all parameters of AVCF preseted significant change in controled group and only the change of AVCSERP and 2∶1 block point occured in the elderly.In conclusion,in the conductivity,refractoriness of AVCS and adjustable response of the automatic nerve of the elderly there are degeneration.
出处
《贵阳医学院学报》
CAS
1997年第4期350-352,共3页
Journal of Guiyang Medical College
关键词
食道心房调搏
房室传导
老年人
生理退变
transesophageal atrial pacing
atrioventricular conduction
automatic nervous block
