Heng H G, Ruth J D, Lee K
Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, IN, 47906, USA.
J Small Anim Pract. 2014 Aug;55(8):420-3. doi: 10.1111/jsap.12238. Epub 2014 Jun 2.
To describe the prevalence, location and clinical significance of abnormal gas accumulations in dogs and cats detected on computerised tomography images.
Retrospective evaluation of all canine and feline computed tomography examinations (292 pre-contrast and 219 post-contrast) performed in a 12-month time period. All studies were evaluated for the presence of venous air emboli. The location of intravenous gas was noted and the volume of intravenous air emboli was estimated visually. The medical records of animals with venous air embolism were reviewed for signs of cardiopulmonary complications.
The overall prevalence of air embolism on pre- and incidence on post-contrast images was 4 · 5 and 2 · 3%, respectively. The prevalence of air embolism on pre-contrast and incidence on post-contrast thoracic images was 35 · 7 and 14 · 2%, respectively. The volume of venous air was generally small and the most common was in an axillary vein. None of the animals had any cardiopulmonary complications.
The presence of small volume venous air embolism on routine computed tomography examinations is a frequent incidental finding that does not appear to cause cardiopulmonary complications.
描述在计算机断层扫描图像上检测到的犬猫异常气体积聚的发生率、位置及临床意义。
回顾性评估在12个月期间进行的所有犬猫计算机断层扫描检查（292例平扫和219例增强扫描）。评估所有研究中静脉空气栓塞的存在情况。记录静脉内气体的位置，并目测估计静脉空气栓塞的体积。回顾有静脉空气栓塞动物的病历，以查找心肺并发症的迹象。
平扫图像上空气栓塞的总体发生率和增强扫描图像上的发生率分别为4.5%和2.3%。平扫胸部图像上空气栓塞的发生率和增强扫描胸部图像上的发生率分别为35.7%和14.2%。静脉内气体量一般较少，最常见于腋静脉。所有动物均无任何心肺并发症。
在常规计算机断层扫描检查中发现小体积静脉空气栓塞是常见的偶然发现，似乎不会引起心肺并发症。
