软式内镜经胸骨上窝进入纵隔行纵隔检查的实验研究

目的探讨软式内镜经胸骨上窝进入纵隔进行纵隔检查的可行性和安全性。方法选取健康实验用猪20只，首先在胸骨上窝处行1．5cm切口，随后向胸腔内建立1个隧道，最后软式内镜经隧道进入纵隔并对纵隔进行观察，统计完成情况及并发症发生情况。结果顺利完成对所有猪纵隔的观察，术中未出现无法控制的出血和动物死亡。术后5只猪出现发热、白细胞计数升高；另外有4只猪并发气胸，其中3只在1～6d内死亡。结论软式内镜经胸骨上窝进入纵隔进行观察是可行的，能够完成对纵隔疾病的诊断，为纵隔疾病的微创治疗提供了实验基础。

An animal experimental study on access to mediastinum with flexible endoscope via suprasternal fossa

Objective To evaluate the feasibility and safety of mediastinum examination with flexi- ble endoscope via suprasternal fossa. Methods A total of 20 healthy pigs were enrolled. Mediastinocosopy was performed via a tunnel to thoracix through a 1.5 cm incision on suprasternal fossa. Mediastinum was observed and complications were recorded. Results Mediastinocosopy was successfully achieved in all pigs. No severe bleeding or death occurred during the procedure. Five pigs got fever after the procedure with elevated white blood cell count. Four pigs had pneumothorax and three of them died in 1-6 days. Conclusion Mediastinocosopy with flexible endoscope through suprasternal fossa is feasible to diagnose mediastinal diseases,which can be important experimental evidence for the mini-invasive therapy of mediastimum diseases.