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犬气管塌陷

犬气管塌陷

概述 气管可以分为颈部气管及在胸腔内的气管,任何个部位的气管因为本身结构异常或外在因素压迫(如肿瘤),所造成的气管狭窄现象,统称为气管塌陷。比较容易发生在小型犬身上,如博美、吉娃娃和马尔济斯等犬种。   发病原因 一项研究表明犬气管塌陷是由于犬气管环内缺少硫酸软骨素。库兴氏病(肾上腺机能亢进)能造成气管软骨结构变弱。有证据表明50%以上的气管塌陷,是由于气管软骨变得逐步软弱,气管继续塌陷。 主要症状 1.雁鸣式吸气是典型特征;…

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