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幼狮心电图的测定和分析

章开训, 杨学伟, 曾卫东, 陈天佳   

  1. 浙江农业大学, 杭州
  • 出版日期:2006-07-24 发布日期:2008-07-07

MEASUREMENT AND ANALYSIS ON THE ELECTR0CARDIOGRAMS OF LION—CUBS

ZHANG Kaixun, YANG Xuewei, ZENG Weidong, CHENG Tianjia   

  • Online:2006-07-24 Published:2008-07-07

摘要: 本研究采用标准双极肢导联(I,I,I>和加压单极肢导联(aVR,aVL,aVF),对未经麻醉并处于清醒安静状态下的4只垒同胞幼狮进行了心电围测定结表明,幼狮的平均心率159±1次/min,均为窭性心律,QRS波平均心电轴为68±18°P波,ORS综台波及t波持续时间分别为0.055±0.004s,0.067±0.006s和0.069±0.012s.R—R,P—R,S—T及Q—T间期分别为0.378±0.002s,0.082±0.006 s,0.078±0.005s和0.225±0.017 s。P波的形态在T,I,I和aVF导联中呈正向,而在aVR及aVL导联中呈负向;QSR综合波的波形呈现一定的规律性,在I,I,I及aVF导联巾主要表现为R型正向波,而在aVR.aVL导联中则表现为Q或S型负向波I S-T段无出现移位现象I T波在aVL导联中,没有表现出明显的规律性,而在I,I,Ⅱ和aVF导联中.主要呈正向.在aVR和aVL导联中则往往呈负向。

关键词: 狮, 心电图

Abstract: The electrocardiograms of 4 lion—cubs of full sib,which were not anaesthetized and remained conscious and quiet,were studied. Leading methods used included standard limb lead (Ⅰ,Ⅱ ,Ⅲ )and the augmented leads (aVR ,aVL,aVF).The results are as follows!The mean heart rate of the lion—cubs was 159±1/min,and a sinus rhythm was shown in aii lion cubs.The mean cardiac electrical aXiS of QRS waves was 68±18° .The average duration of P,QRS and T wave was 0.055 ±0.004 s,0.67±0.006 S,Ad 0.69±0.12 S respectively.The mean interval of R-R ,P-R ,S-T and Q-T was 0.378±0.002 s,0.082±0.006 S,0.078±0.005 S and 0.225±0.017 S respectively. P wave in leads I ,Ⅱ, Ⅲ and aVF is of positiveform and thatin aVR and aV L ,of negarive form.QRS complex showed a regularity to a certain degree,presented mainly R type in leads I ,Ⅱ,Ⅲ ,aVF,and mainly Q or S type in leads aVR ,aVL. There seelned no shiR of the S-T segm ent. The T wave form exhibited no regularity itl lead aV L,however,mainly took the positive form in leadsⅠ,Ⅱ, Ⅲ and aV F,and illainiy negative form in lead aVR.

Key words: Lion (Panthera leo), Electrocardiclgram