Tulleners E P, Harrison I W, Raker C W
Department of Clinical Studies, School of Veterinary Medicine, University of Pennsylvania, Kennett Square 19348.
J Am Vet Med Assoc. 1988 Mar 1;192(5):670-5.
By use of endoscopy, 75 horses with respiratory noise and/or exercise intolerance were determined to have structural arytenoid cartilage abnormalities (60 primary, 11 after previous laryngeal surgery), or failed left laryngoplasty (4 horses) for laryngeal hemiplegia in which the arytenoid cartilage still appeared normal. Eighty-eight percent of the horses were either Thoroughbred (54 horses; 72%) or Standardbred (12 horses; 16%) racehorses; only 9 horses (12%) had occupations not related to racing. Seventy-six percent of the racehorses were 2 to 4 years old; all non-racehorses were greater than 4 years old. The male:female ratio was approximately 2:1. Of the horses with cartilage abnormalities, 28 had left-sided involvement, 22 had right-sided involvement, and 21 had bilateral involvement. Sixty-two arytenoidectomies were performed, 58 for cartilage abnormalities (22 left, 19 right, 17 bilateral), and 4 for failed left laryngoplasties. Overall, 45% of the Thoroughbred racehorses that returned to racing after arytenoidectomy raced successfully (50% left, 75% right, 22% bilateral); only 20% of the Standardbreds were able to race. Seventy-five percent of non-racehorses were able to return to their previous use. Many horses were retired intentionally after surgery.
通过内窥镜检查，确定75匹有呼吸杂音和/或运动不耐受的马存在杓状软骨结构异常（60匹原发性，11匹曾接受过喉部手术），或左侧喉成形术失败（4匹马）导致喉偏瘫，而杓状软骨外观仍正常。88%的马是纯种马（54匹；72%）或标准赛马（12匹；16%）；只有9匹马（12%）从事与赛马无关的职业。76%的赛马年龄在2至4岁；所有非赛马年龄均超过4岁。雄雌比例约为2:1。在有软骨异常的马中，28匹左侧受累，22匹右侧受累，21匹双侧受累。进行了62次杓状软骨切除术，58次针对软骨异常（22次左侧，19次右侧，17次双侧），4次针对左侧喉成形术失败。总体而言，45%接受杓状软骨切除术后重返赛场的纯种赛马比赛成功（左侧50%，右侧75%，双侧22%）；只有20%的标准赛马能够参赛。75%的非赛马能够恢复到之前的用途。许多马在手术后被有意退役。
