Park Min-Ho, Kim Joong-Hyun, Choi Seok Hwa
AP Animal Hospital, Yongin, Republic of Korea.
Osong Medical Innovation Foundation, Nonclinical Evaluation Center, Cheongju, Republic of Korea.
In Vivo. 2025 Sep-Oct;39(5):2629-2633. doi: 10.21873/invivo.14063.
BACKGROUND/AIM: Endotracheal tube intubation is required for surgery under inhalation anesthesia. In the present study, after inhalation anesthesia in dogs, the tracheal tube was extubated without deflating the endotracheal tube cuff, resulting in thoracic tracheal rupture, subcutaneous emphysema, and pneumomediastinum. The ruptured thoracic trachea was reconstructed using an endotracheal stent to treat intrathoracic emphysema.
A double-wire woven nitinol stent was handmade using a cross-and-hook knitting method. The fabricated endotracheal stent was 2-3 mm larger than the internal diameter of the ruptured trachea. The clinical signs and respiratory pattern, image diagnoses (radiography and computed tomography), and tracheoscopy results after endotracheal stenting were assessed for six months.
The lateral cervical radiographs showed that the intratracheal stent was properly placed without migration or stent fracture at the insertion site. After two to three weeks of tracheal stenting, the coughing and dyspnea signs revolved, and the normal activities in all dogs were resumed.
The double-wire braided nitinol stent showed no migration or deformation in the canine trachea. These results suggest that the nitinol stent is compatible with the canine tracheal structure and has flexibility with an adequate radial force.
背景/目的：吸入麻醉下的手术需要进行气管插管。在本研究中，对犬进行吸入麻醉后，在未放气气管导管套囊的情况下拔除气管导管，导致胸段气管破裂、皮下气肿和纵隔气肿。使用气管内支架重建破裂的胸段气管以治疗胸腔内气肿。
采用交叉钩编法手工制作双丝编织镍钛合金支架。制作的气管内支架比破裂气管的内径大2 - 3毫米。对气管内支架置入后的临床症状和呼吸模式、影像诊断（X线摄影和计算机断层扫描）以及气管镜检查结果进行了6个月的评估。
颈部侧位X线片显示气管内支架放置合适，在插入部位无移位或支架断裂。气管支架置入两到三周后，咳嗽和呼吸困难症状缓解，所有犬恢复正常活动。
双丝编织镍钛合金支架在犬气管内未出现移位或变形。这些结果表明镍钛合金支架与犬气管结构相容，具有足够的径向力且具有柔韧性。
