Krpan M K
Mod Vet Pract. 1984 May;65(5):A19-22.
Transtracheal aspiration is used to obtain samples for culture and cytologic examination of respiratory tract secretions and exudates. A 15-cm-long area of the ventral midcervical region is surgically prepared, a small site infiltrated SC with 2-3 ml lidocaine, and a stab incision made in the skin. A trocar with cannula is inserted through the incision and annular ligament into the trachea and the trocar removed. An 8-Fr polypropylene catheter is inserted about 35-40 cm down the trachea and attached to a 30-ml syringe, containing 20 ml sterile saline, with a 3-way stopcock . The saline is rapidly injected and a 3- to 4-ml sample is aspirated after the horse coughs and as the catheter is slowly withdrawn. The catheter and cannula are withdrawn, the area covered with antibacterial ointment and gauze sponges, and elastic tape applied. Complications are rare but include SC emphysema or infection, pneumomediastinum and cartilage ring damage.
经气管抽吸用于获取呼吸道分泌物和渗出物的样本进行培养和细胞学检查。手术准备颈前正中区域腹侧15厘米长的区域，用2 - 3毫升利多卡因皮下浸润一个小部位，然后在皮肤上做一个刺切口。将带套管的套管针通过切口和环状韧带插入气管，拔出套管针。将一根8F聚丙烯导管插入气管约35 - 40厘米深处，并连接到一个装有20毫升无菌生理盐水的30毫升注射器上，带有一个三通旋塞。快速注入生理盐水，在马咳嗽且导管缓慢拔出时吸出3至4毫升样本。拔出导管和套管，在该区域覆盖抗菌软膏和纱布海绵，并用弹性绷带包扎。并发症很少见，但包括皮下气肿或感染、纵隔气肿和软骨环损伤。
