西藏小型猪心电图分析

Analysis of Electrocardiograms of Tibet Hog

通过对西藏小型猪心电图分析,寻求西藏小型猪心电图变化的规律,并与人类和贵州小型猪心电图进行比较,以期为西藏小型猪实验动物化提供心电图基本资料。用ECG-9020K心电图仪,描记完全清醒状态的西藏小型猪45头,选择Ⅰ、Ⅱ、Ⅲ标准导联和aVR、aVL、aVF单极加压肢体导联的心电图。结果显示:①心电图均为窦性心率;②P波在Ⅰ、Ⅱ、aVF导联均为直立,在Ⅲ、aVL导联大部分直立,在aVR导联均倒置;③QRS综合波形在Ⅰ导联以qR为主,Ⅱ导联以qRs、Rs为主,Ⅲ导联以Rs、qRs为主,aVL导联以qRr、sr’和qr为主,aVR导联以rsr’、Qr和Q为主,aVF导联以Rs和qRs为主;④T波在Ⅰ、Ⅱ、Ⅲ、aVF导联中多为直立,在aVL、aVR导联中多为倒置;⑤各波间期时间(ms):P波(68.18±23.54),P-R间期(92.69±20.64),QRS间期(47.76±13.50),Q-T间期(225.93±45.03),Q-Tc间期(225.47±31.23)。西藏小型猪心电图特征与人心电图基本相似,但心率较快,P-R间期、QRS间期、S-T间期和Q-T间期较短及T波方向变化大;西藏小型猪心电图特征与贵州小型猪心电图很相似,但Q-T间期较贵州小型猪短。

The analysis of electrocardiogram of Tibet hog is used to observe the developing process and compare with the electrocardiogram of human being and Guizhou miniature pig to provide basic data for Tibet hog＇s experimental animalization. Methods： 45 Tibet hogs in conscious were traced from Ⅰ , Ⅱ and Ⅲ standard leads and aVR.aVL and aVFunipolar extremity leads with electrocardiogram ECG-9020K. Result. ①There was a sinus rhythm in all examined Tibet hogs. ②All P waves were erect in Ⅰ , Ⅱ and aVF leads, but inverted in aVR lead,most of it were erect in Ⅲ and aVL leads. ③The QRS complex form was qR in Ⅰ lead, qRs and Rs in Ⅱ lead, Rs and qRs in m lead, qR, rsr＇and qr in aVL lead,rsr＇ ,Qr and Q in aVR lead,Rs and qRs in aVF lead primarily.④Most of T wave were erect in Ⅰ , Ⅱ ,Ⅲ and aVF leads, and inverted in aVL and aVR leads.⑤The duration of various waves and interval. P duration is 68. 18 ms± 23.54 ms;P-R interval is 92. 69 ms±20.64 ms; QRS interval is 47. 76 ms±13.50 ms;Q-T interval is 225.93 ms±45.03 ms; Q-Tc interval is 225.47 ms±31.23 ms. The character of Tibet hog＇s electrocardiogram is similar to human beings on the whole,except that its heart rate is faster ,and P-R interval,QRS interval , S-T interval and Q-T interval are shorter , and it is similar to GuiZhou miniature pig extremely except that its Q-T interval is shorter.