De Lorenzi Davide, Bertoncello Diana, Drigo Michele
San Marco Private Veterinary Clinic, Via Sorio 114/c, 35141-Padua, Italy.
J Am Vet Med Assoc. 2009 Oct 1;235(7):835-40. doi: 10.2460/javma.235.7.835.
To detect abnormalities of the lower respiratory tract (trachea, principal bronchi, and lobar bronchi) in brachycephalic dogs by use of endoscopy, evaluate the correlation between laryngeal collapse and bronchial abnormalities, and determine whether dogs with bronchial abnormalities have a less favorable postsurgical long-term outcome following correction of brachycephalic syndrome.
Prospective case series study.
40 client-owned brachycephalic dogs with stertorous breathing and clinical signs of respiratory distress.
Brachycephalic dogs anesthetized for pharyngoscopy and laryngoscopy between January 2007 and June 2008 underwent flexible bronchoscopy for systematic evaluation of the principal and lobar bronchi. For dogs that underwent surgical correction of any component of brachycephalic syndrome, owners rated surgical outcome during a follow-up telephone survey. Correlation between laryngeal collapse and bronchial abnormalities and association between bronchial abnormalities and long-term outcome were assessed.
Pugs (n = 20), English Bulldogs (13), and French Bulldogs (7) were affected. A fixed bronchial collapse was recognized in 35 of 40 dogs with a total of 94 bronchial stenoses. Abnormalities were irregularly distributed between hemithoraces; 15 of 94 bronchial abnormalities were detected in the right bronchial system, and 79 of 94 were detected in the left. The left cranial bronchus was the most commonly affected structure, and Pugs were the most severely affected breed. Laryngeal collapse was significantly correlated with severe bronchial collapse; no significant correlation was found between severity of bronchial abnormalities and postsurgical outcome.
Bronchial collapse was a common finding in brachycephalic dogs, and long-term postsurgical outcome was not affected by bronchial stenosis.
通过内窥镜检查检测短头犬下呼吸道（气管、主支气管和叶支气管）的异常情况，评估喉塌陷与支气管异常之间的相关性，并确定支气管异常的犬在短头综合征矫正术后长期预后是否较差。
前瞻性病例系列研究。
40只因呼吸沉重和呼吸窘迫临床症状而被客户饲养的短头犬。
2007年1月至2008年6月期间接受咽镜检查和喉镜检查麻醉的短头犬接受了可弯曲支气管镜检查，以系统评估主支气管和叶支气管。对于接受短头综合征任何组成部分手术矫正的犬，主人在随访电话调查中对手术结果进行评分。评估喉塌陷与支气管异常之间的相关性以及支气管异常与长期预后之间的关联。
受影响的有哈巴狗（n = 20）、英国斗牛犬（13只）和法国斗牛犬（7只）。40只犬中有35只被识别出有固定性支气管塌陷，共有94处支气管狭窄。异常情况在半胸之间分布不均；94处支气管异常中有15处在右支气管系统中被检测到，94处中有79处在左支气管系统中被检测到。左头侧支气管是最常受影响的结构，哈巴狗是受影响最严重的品种。喉塌陷与严重支气管塌陷显著相关；支气管异常的严重程度与术后结果之间未发现显著相关性。
支气管塌陷在短头犬中是常见发现，术后长期预后不受支气管狭窄影响。
