Hidaka Yuichi, Hagio Mitsuyoshi, Kashiba Ichiro, Ando Kei, Otani Yuki, Satoh Hiroyuki, Konishi Yuko, Tsuzuki Nao, Hokamura Junichi, Kajisa Makoto, Wada Mie, Kirino Yumi, Asanuma Taketoshi
Laboratory of Veterinary Surgery, Department of Veterinary Science, Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen Kibana-dai Nishi, Miyazaki 889-2192, Japan.
J Vet Med Sci. 2016 Mar;78(3):451-5. doi: 10.1292/jvms.15-0378. Epub 2015 Oct 30.
2.3-month-old (Case 1), one-month-old (Case 2) and 6-month-old (Case 3), Japanese Black calves presented with mild to severe wheezing. All calves had histories of dystocia at birth with breech presentation. Physical examination, thoracic radiography, endoscopy or computed tomography indicated wheezing associated with tracheal collapse and stenosis caused by perinatal rib fractures. Partial resection of the fractured first and second ribs was performed on all calves. The respiration in Cases 1 and 2 immediately improved after the surgery, while Case 3 required two weeks to improve. Cases 1 and 3 grew up healthy and were sold at auction, but Case 2 had a recurrence of wheezing at three months post-discharge and showed growth retarding. Partial costectomy may be an effective solution for control of respiration, however, further cases are required to discuss the criteria for surgical management and to obtain favorable postoperative prognosis in calves with tracheal collapse and stenosis caused by perinatal rib fractures.
2.3月龄（病例1）、1月龄（病例2）和6月龄（病例3）的日本黑牛犊出现轻度至重度喘息。所有牛犊出生时均有臀位难产史。体格检查、胸部X线摄影、内窥镜检查或计算机断层扫描显示，喘息与围产期肋骨骨折导致的气管塌陷和狭窄有关。对所有牛犊进行了第一和第二肋骨骨折的部分切除术。病例1和病例2术后呼吸立即改善，而病例3需要两周时间改善。病例1和病例3健康成长并在拍卖会上售出，但病例2出院后三个月喘息复发并出现生长发育迟缓。部分肋骨切除术可能是控制呼吸的有效方法，然而，需要更多病例来讨论手术管理标准，并在围产期肋骨骨折导致气管塌陷和狭窄的牛犊中获得良好的术后预后。
