Objectives Investigate the curative effect of implanting nickel titanium alloy stents for the treatment of airway stenosis and malacia in malignant tumor through bronchoscope view. Methods The Olympus BF-P60 type bronchofiberscope will be positioned to the proximal narrow after transnasal intubation then the guide wire will be glided into lung through biopsy pipe. The stent conveyer will be glided into lung along the guide wire then the stent will be released to the destination after bronchofiberscope being drawn slowly. Results After stent implantation, the diameter of narrow airway increased from the 5. 5 ± 1. 3 mm before intervention to the 11.4 ± 1. 1 mm after intervention, the difficulty breathing score decreased from the 3. 2 ±0. 7 before intervention to the 1. 4 ±0. 5 after intervention, the predic-ted forced vital capacity increased from the 56. 1 ±6. 4% before intervention to the 95. 3 ±4. 1% after intervention, the FEV1 increased from the 1. 2 ±0. 2 L before intervention to the 1. 8 ±0. 3 L after intervention, arterial oxygen saturation increased from the 82 ±7% before intervention to the 96 ±2% after intervention( P <0. 05 ). Conclusion Implantation of stents through bronchoscope positioning can re-markably reduce chest distress so as to improve life quality.%目的 研究支气管镜直视下植入镍钛合金支架治疗恶性肿瘤气道狭窄和气道软化的疗效.方法 鼻部引入Olympus BF-P60型纤支镜固定于狭窄近端,从活检孔道滑入导丝后退镜,顺导丝滑入支架推送器,到达目标位置后释放支架.结果 支架植入后,狭窄气道直径由5.5±1.3 mm增加到11.4±1.1 mm,呼吸困难评分从3.2±0.7下降至1.4±0.5,用力肺活量预测值从治疗前的56.1±6.4%上升至95.3±4.1%,FEV1由1.2±0.2 L上升至1.8±0.3 L,动脉氧饱和度由介入前的82±7%上升至96±2%(P<0.05).结论 纤维支气管镜定位支架植入术可明显改善患者胸闷气促症状从而提高生活质量.
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