Simoens P, Lauwers H, De Muelenare C, Muylle E, Steenhaut M
Laboratory of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, State University of Ghent, Belgium.
Equine Vet J Suppl. 1990 Sep(10):62-5. doi: 10.1111/j.2042-3306.1990.tb04714.x.
A clinical case of Horner's syndrome is described in a Standardbred horse, and the various symptoms of cranial sympathetic denervation are studied in two ponies after experimental transection of the left cervical sympathetic trunk and vagosympathetic trunk, respectively. The most prominent symptoms of equine Horner's syndrome were ptosis, local sweating and increased cutaneous temperature in the denervated area. Enophthalmos, miosis and increased lacrimation were also observed but these symptoms were mild, variable and difficult to ascertain. Prolapse of the third eyelid was not noticed. Concomitant laryngeal hemiplegia was present in the clinical case and was provoked experimentally in one pony by transection of the left vagosympathetic trunk. The aetiology of each of these symptoms is discussed by comparing the results of pharmacological tests and histological findings in the three horses with the data from the literature.
本文描述了一匹标准赛马的霍纳氏综合征临床病例，并分别在两只小马驹身上进行实验，切断其左颈交感干和迷走交感干后，研究了颅交感神经去神经支配的各种症状。马霍纳氏综合征最突出的症状是上睑下垂、局部出汗以及去神经支配区域皮肤温度升高。也观察到眼球内陷、瞳孔缩小和泪液分泌增加，但这些症状较轻、变化不定且难以确定。未注意到第三眼睑脱垂。临床病例中存在伴发的喉偏瘫，在一只小马驹中通过切断左迷走交感干实验诱发了喉偏瘫。通过比较这三匹马的药理学测试结果和组织学发现与文献数据，对每种症状的病因进行了讨论。
