De Decker Steven, Warner Anne-Sophie, Volk Holger A
Current address: Rhodes Veterinary Surgery, Kingsthorpe, Northampton, UK.
J Feline Med Surg. 2017 Apr;19(4):419-423. doi: 10.1177/1098612X16630358. Epub 2016 Jul 9.
Objectives The objective was to evaluate the prevalence and possible breed predilections for thoracolumbar intervertebral disc disease (IVDD) in cats. Methods Medical records and imaging studies of cats diagnosed with thoracolumbar IVDD between January 2008 and August 2014 were retrospectively reviewed and compared with the general hospital population. The association between type of IVDD (ie, intervertebral disc extrusion [IVDE] or intervertebral disc protrusion [IVDP]) and breed, age, sex, and duration and severity of clinical signs was also evaluated. Results Of 12,900 cats presented during the study period, 31 (0.24%) were diagnosed with IVDD, including 17 purebred and 14 non-purebred cats. Of all presented purebred cats, 0.52% were diagnosed with thoracolumbar IVDD. More specifically, 1.29% of all British Shorthairs and 1.83% of all presented Persians were diagnosed with IVDD. Compared with the general hospital population, purebred cats ( P = 0.0001), British Shorthairs ( P <0.0001) and Persians ( P = 0.0006) were significantly overrepresented with thoracolumbar IVDD. Affected purebred cats were younger than affected non-purebred cats ( P = 0.02). Of 31 cats with IVDD, 19 were diagnosed with IVDE and 12 with IVDP. Cats with IVDE had a significantly shorter duration of clinical signs ( P = 0.0002) and demonstrated more severe neurological deficits ( P = 0.04) than cats with IVDP. Conclusions and relevance Although thoracolumbar IVDD is an uncommon condition in cats, purebred cats, British Shorthairs and Persians, were overrepresented. It is currently unclear if this represents a true breed predisposition or a higher likelihood of owners of purebred cats seeking referral for advanced diagnostic imaging procedures.
目的 本研究旨在评估猫胸腰椎椎间盘疾病（IVDD）的患病率及可能的品种易感性。方法 回顾性分析2008年1月至2014年8月期间诊断为胸腰椎IVDD的猫的病历和影像学检查结果，并与医院总体猫群进行比较。同时评估IVDD类型（即椎间盘突出[IVDE]或椎间盘膨出[IVDP]）与品种、年龄、性别以及临床症状持续时间和严重程度之间的关联。结果 在研究期间就诊的12900只猫中，31只（0.24%）被诊断为IVDD，其中包括17只纯种猫和14只非纯种猫。在所有就诊的纯种猫中，0.52%被诊断为胸腰椎IVDD。更具体地说，所有英国短毛猫中有1.29%以及所有就诊的波斯猫中有1.83%被诊断为IVDD。与医院总体猫群相比，纯种猫（P = 0.0001）、英国短毛猫（P <0.0001）和波斯猫（P = 0.0006）在胸腰椎IVDD中所占比例显著过高。受影响的纯种猫比受影响的非纯种猫年龄更小（P = 0.02）。在31只患有IVDD的猫中，19只被诊断为IVDE，12只被诊断为IVDP。与IVDP的猫相比，IVDE的猫临床症状持续时间明显更短（P = 0.0002），且神经功能缺损更严重（P = 0.04）。结论及相关性 尽管胸腰椎IVDD在猫中并不常见，但纯种猫、英国短毛猫和波斯猫在该病中所占比例过高。目前尚不清楚这是真正的品种易感性，还是纯种猫主人更有可能因先进的诊断成像程序而寻求转诊。
