Abstract: Objective To investigate the electrocardiogram(ECG)features of rhesus monkeys in consciousness． Methods Sixty healthy rhesus monkeys，2—3 years old，2～3．5 kg，and 30 each gender，were selected．ECG changes of the lead I，2，3，aVR，aVL，aVF in resting conscious monkeys were examined，and the average heaM rate，mean electrical axis，P wave，QRS complex，amplitude of T wave，PR interval，QT interval and so on，were calculated．Results and Conclusions Sinus rhythm was found in all the 60 rhesu8 monkeys．In most of the rhesus monkeys，the P wave was upright in H lead，S wave was absent in 2、3、aVF  leads，and there was no Q wave in aVR lead．The average voltage of R wave in female rhesus monkeys was significantly higher than that of the males (P<0．005)．In rhesus monkeys，the P wave is sharp，the QRS is diversified，the QT interval K value is 0．298± 0．030，the ST segment locates at the isoelectric line，and the T wave is smooth in six leads and upright in the II lead．In conclusion，we established the basic ECG data of rhesus monkeys．

Key words: Rhesus monkeys, Electrocardiogram(ECG)

摘要： 目的研究健康恒河猴在清醒状态下的心电图特点。方法选择60只2—3岁健康恒河猴，体重2—3．5kg； 雌雄各30只；在环境安静、动物清醒状态下，测定I、Ⅱ、Ⅲ、aVR、aVL、aVF六个导联的心电图变化，并计算平均心 率，平均心电轴，P波、QRs波群和T波的振幅，PR间期、QT问期等指标。结果60只恒河猴均为窭性心律，并发 现在肢体Ⅱ导联中，P波均为向上直立波，Ⅱ、Ⅲ、aVF导联中大部分恒河猴没有s波，aVR导联中大部分恒河猴没 有Q波。雌性恒河猴R波电压平均值明显高于雄性恒河猴平均值(P<0．005)。恒河猴P波较尖，QRs波群多样 化，QT问期的K值范围是0．298 4-0．030，ST段位于等电位线，T波以圆滑为主，Ⅱ导联中绝大部分为直立。结论 此研究建立了恒河猴心电图相关基础数据，为相关的研究提供了参考。

关键词: 恒河猴, 心电图