Williams J W, Meagher D M, Pascoe J R, Hornof W J
Department of Surgery, School of Veterinary Medicine, University of California, Davis 95616.
Vet Surg. 1990 Mar-Apr;19(2):142-7. doi: 10.1111/j.1532-950x.1990.tb01156.x.
Upper airway pressure was measured during maximal exercise in 10 Thoroughbred racehorses with naturally occurring upper airway obstruction. Left laryngeal hemiplegia and arytenoid chondropathy resulted in substantial increases (30-40 cm H2O) in inspiratory upper airway pressure (Pl), whereas complicated aryepiglottic entrapment and subepiglottic cysts produced only modest increases (15 cm H2O) in Pl. Uncomplicated aryepiglottic entrapment and grade IV pharyngeal lymphoid hyperplasia produced only slight increases (3-5 cm H2O). In general, surgical procedures restored airway pressures to within normal limits. Subtotal arytenoidectomy improved but did not normalize airway pressures in horses with arytenoid chondropathy. Pharyngeal lymphoid hyperplasia appeared to have little effect on upper airway function.
在10匹患有自然发生的上呼吸道阻塞的纯种赛马进行最大运动期间，测量其上呼吸道压力。左侧喉偏瘫和杓状软骨病导致吸气上呼吸道压力（Pl）大幅增加（30 - 40厘米水柱），而复杂的杓会厌襞陷入和会厌下囊肿仅使Pl有适度增加（15厘米水柱）。单纯的杓会厌襞陷入和IV级咽淋巴组织增生仅使Pl有轻微增加（3 - 5厘米水柱）。一般来说，手术程序可使气道压力恢复到正常范围内。次全杓状软骨切除术改善了患有杓状软骨病马匹的气道压力，但未使其恢复正常。咽淋巴组织增生似乎对上呼吸道功能影响不大。
