实验动物与比较医学 ›› 2014, Vol. 34 ›› Issue (6): 443-448.DOI: 10.3969/j.issn.1674-5817.2014.06.003

• 论著 • 上一篇    下一篇

房颤兔模型制作方法的优化

张方亮1,2, 陈颖敏1, 宋磊1, 罗章源3, 张文赞3, 许向东2, 何奔1   

  1. 1.上海交通大学医学院附属仁济医院心内科,上海200001;
    2.嘉定区中心医院心内科,上海 201800;
    3.恩识医疗科技(上海)有限公司,上海 201112
  • 收稿日期:2014-05-09 出版日期:2014-12-25 发布日期:2014-12-25
  • 作者简介:张方亮(1971-), 硕士研究生, 主治医师, 从事心血管内科临床诊疗及相关研究。 E-mail:zhfangliang@163.com
  • 基金资助:
    上海市科委科研计划资助项目(124119b1700); 上海市嘉定区卫生系统第三轮学科(项目)建设计划支助(TS02)

Refinement on Establishment of Atrial Fibrillation Model in Rabbit

ZHANG Fang-liang, CHEN Ying-min, SONG lei, LUO Zhang-yuan, ZHANG Wen-zan, XU Xiang-dong, HE Ben   

  1. 1. Ren Ji Hospital, School of Medicine , Shanghai Jiao Tong University, Shanghai 200001, China;
    2. Jiading district central hospital,Shanghai 201800, China;
    3. Ensense Biomedical technologies111Shanghai222 Co. Ltd. , Shanghai 201112, China
  • Received:2014-05-09 Online:2014-12-25 Published:2014-12-25

摘要: 目的 优化无线植入刺激系统房颤(AF)动物模型制作方法。方法 1)麻醉方案优化,将30只新西兰兔分为3组,每组10只, 分别用三种不同的麻醉方法。A组:戊巴比妥钠,B组:陆眠宁Ⅱ+地西泮+利多卡因,C组:陆眠宁Ⅱ+咪达唑仑+利多卡因。比较其首次麻醉时间,对呼吸、心率的抑制作用,麻醉2 h内补充麻醉次数,麻醉死亡。2)采集电极留置部位优化,先将心动图采集电极连接注射器针头在兔体表不同部位采集心电图分析后选择最终采集部位。3)植入子刺激电极和手术方法优化,使用优质不锈钢丝制作刺激电极和一种改进的电极缝合固定方法。结果 A组麻醉中呼吸、心率抑制较B、C组明显。B组首次麻醉时间最长。C组补充麻醉次数最多。优化心电图采集位置后获得了最佳心动图。优化的刺激电极明显改善了刺激效果,改进手术方法后使手术简单易行,缩短了手术时间。结论 通过优化麻醉方案、心电图采集部位,改进刺激电极和手术方法后制作植入式遥测刺激器建立AF动物模型更加符合实验动物的3R原则。

关键词: 房颤(AF), 动物模型, 兔, 优化

Abstract: Objective To optimize the method for establishing an animal model of atrial fibrillation(AF) based on self-designed implantable telemetry and stimulator. Method First, the anesthetic protocols were refined. Thirty New Zealand rabbits, half males and half females, were divided into three groups. Group A, pentobarbital sodium only, Group B, xylazine with diazepam and lidocaine, and Group C, xylaxine with midazolam and lidocaine. Second, the location of recording electrodes were optimized by using a needle to connect to ECG collect electrode and the needle was punctured to the different location of the rabbit chest subcutaneous to analyze the electrocardiogram before choose the best location. Third, the stimulating electrode was refined and the method of operation was improved. Results At the anesthesia, the heart rate and breath rate of Group A were depressed more than Group B and Group C, first anesthesia time of Group B was longest, complemental anesthesia times of Group C was more than Group A and Group B. The best electrode location could prove good ECG record . Refined stimulating electrode could improve the effect of stimulation. Reformed operation method could simplify the operation procedure. Conclusion The refined method for establishing an animal model of atrial fibrillation used by lmplantable telemetry and stimulator was feasible, and more conformance to animal welfare.

Key words: Atrial fibrillation(AF), Animal model, Rabbit, Refinement

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