Abstract:

Objective

To investigate the application value and safety analysis of bronchoscopy combined with digital subtraction angiography （DSA） under general anesthesia with transnasal tracheal tube intubation in the interventional diagnosis and treatment of airway stenosis.

Methods

We retrospectively analyzed the 90 cases of bronchoscopy combined with DSA under general anesthesia with transnasal tracheal intubation in the interventional diagnosis and treatment of airway stenosis in our hospital from January 2020 to December 2023.The clinical efficacy， and intraoperative and postoperative complications were evaluated.

Results

The success rate of metal tracheal stent placement in 90 patients was 100%. No serious adverse reactions such as massive hemorrhage and asphyxia occurred during the operation. The shortness of breath score and percutaneous arterial oxygen saturation （SpO₂） before and after treatment were significantly different from those before stent placement （P＜0.000 1）. The patients with preoperative hemoptysis （7 cases） and intraoperative bleeding （35 cases） did not see any bleeding points after hemostasis under bronchoscope. The symptoms such as dyspnea were immediately relieved after stent implantation， and the clinical symptoms were relieved after surgery.

Conclusion

Bronchoscopy combined with DSA intervention under general anesthesia with transnasal tracheal intubation can effectively relieve airway stenosis and effectively stop bleeding，with feasible technology， safe operation and reliable recent efficacy， which is worthy of clinical promotion.

Key words: Bronchoscope, DSA, Airway stenosis, Endotracheal metal stent placement, Endoairway ablation