Cahalane Alane Kosanovich, Flanders James A
Peace Avenue Veterinary Clinic, G/F, 7B Liberty Ave, Mongkok, Kowloon, Hong Kong, China.
J Am Vet Med Assoc. 2012 Aug 15;241(4):467-71. doi: 10.2460/javma.241.4.467.
An 8-year-old castrated male mixed-breed dog (dog 1) and a 13-year-old spayed female mixed-breed dog (dog 2) were evaluated because of spontaneous pneumothorax.
Both dogs had decreased bronchovesicular sounds with coughing, tachypnea, cyanosis, lethargy, or a combination of these clinical signs. Radiographic examination revealed pneumothorax in both dogs and consolidation of a lung lobe in dog 2. Pneumothorax was alleviated following thoracocentesis in both dogs but recurred.
Dog 1 was initially treated by placement of a thoracostomy tube but underwent thoracotomy when pneumothorax recurred after tube removal; left caudal lung lobectomy was performed because a ruptured bulla was suspected, and a pulmonary bulla was histologically confirmed. Dog 2 underwent thoracotomy with left caudal lung lobectomy and partial removal of the left cranial lung lobe; diffuse pulmonary emphysema was diagnosed. This dog underwent a second surgery for right caudal lung lobectomy because of torsion. When pneumothorax recurred and additional surgery was not considered feasible, pleural access ports were placed in both dogs for repeated removal of air from the thoracic cavity. Ports were used clinically for 17 days in dog 1 and 14 days in dog 2. Dog 1 successfully underwent another surgery when pneumothorax recurred 18 days after port placement but was euthanized 17 months later when dyspnea and tachypnea recurred. Pneumothorax had not recurred further in dog 2 twenty-three months after port placement.
Findings suggested that pleural access ports may have a role in the management of spontaneous pneumothorax in dogs.
一只8岁去势的雄性混血犬（犬1）和一只13岁绝育的雌性混血犬（犬2）因自发性气胸接受评估。
两只犬均出现支气管肺泡呼吸音减弱，并伴有咳嗽、呼吸急促、发绀、嗜睡或这些临床症状的组合。放射学检查显示两只犬均有气胸，犬2有一个肺叶实变。两只犬经胸腔穿刺术后气胸均得到缓解，但气胸复发。
犬1最初通过放置胸腔造瘘管进行治疗，但在拔除导管后气胸复发时接受了开胸手术；由于怀疑有破裂的肺大疱，进行了左后肺叶切除术，组织学证实为肺大疱。犬2接受了开胸手术，切除左后肺叶并部分切除左前肺叶；诊断为弥漫性肺气肿。这只犬因扭转接受了第二次手术，切除右后肺叶。当气胸复发且认为再次手术不可行时，两只犬均放置了胸膜入口端口，以便反复从胸腔抽出空气。端口在犬1临床使用了17天，在犬2临床使用了14天。犬1在放置端口18天后气胸复发时成功接受了另一次手术，但在17个月后因呼吸困难和呼吸急促复发而实施安乐死。犬2在放置端口23个月后气胸未再复发。
研究结果表明，胸膜入口端口可能在犬自发性气胸的治疗中发挥作用。
