摘要
骨骼肌肌电位对单极按需心室起搏器(VVI)的感知功能的干扰(简称肌电干扰)已为人所知。但影响肌电位干扰起搏器功能的因素很少论著。本文初步探讨了安装起搏器时心腔内(最大)R波振幅、起搏阈值(电压、电流)和患者年龄、性别等对肌电干扰的影响。
The unipolar VVI pacemaker was implanted in 40 patients, the myopotential interference was produced by the means of patien's palms forcing againt with each other, the amplitude of QRS wave of intracardiac eletrocardiogram and pacing threshold value of the positive group and the negative group, and the age and the sex of those patients are compared with each other and discussed.The difference of the amplitude of QRS wave of the intracardiac eletrocardiogram between the positive group 5.82+1.96 mV and the negative group 5.14+1.60 mV (P>0.05), the difference of the pacing voltage threshold between the positive group 0.49+0.13V and the negative group 0.59 +0.24V(P>0.05) and the difference of the pacing current threshold value between the positive group 0.63+0.15mV and the negative group 0.83+0.22mV(P>0.05) are not significant. The difference of incidence between the male (36%) and the female group (33%) is not significant (P>0.05). Thedifference of the incidence between the group less than 60 years old (39%) and the more than 60 years old (29%) is not significant.The amplitude of QRS wave of intracardiac eletrocardiogram, the pacing voltage threshold, the pacing current threshold, the age and sex of the patients have no relation to myopotential interference according to above result.
出处
《广东医学》
CAS
CSCD
1992年第3期128-129,共2页
Guangdong Medical Journal
