目的：评价电子气管镜直视下置入镍钛合金支架治疗气道狭窄的疗效及安全性。方法：对我院3年来由各种原因引起的气管或支气管狭窄的21例患者行电子气管镜直视下经鼻置入国产镍钛合金支架术，观察置入支架前后症状、狭窄段气道直径变化、动脉血气变化情况及其并发症。结果：21例患者术后呼吸困难均明显改善，气道内径扩张及动脉血氧分压改善较术前均有统计学意义，未发生严重并发症。结论：电子气管镜直视下置入气道支架准确、迅速、安全，操作较方便，有助于延长患者的生存时间和提高生活质量，为进一步治疗创造条件。
Objective To study the surgical treatment of tracheal and main bronchial tumors. Methods We retrospectively analyzed the clinical data of 30 patients with tracheal and main bronchial tumors treated in Shengjing Hospital of China Medical University from January 2000 to December 2015. There were 12 males and 18 females with the age ranging from 22 to 80 years. Results Ten patients were treated with enucleation, 12 patients tracheal tumor resection and end-to-end anastomosis, 1 patient window resection, 1 patient wedge resection, 5 patients tumor resection and tracheal reconstruction by using pulmonary tissue flap with alloy stent and 1 patient left pneumonectomy. One patient died of sudden massive hemoptysis 26 d after operation. Intraoperative complications were found in 2 patients. Others had a good recovery after operation. Patients were followed up for 11 months to 14 years. Eight patients were followed up less than 5 years postoperatively, one patient died of sudden massive hemoptysis 14 months after operation, while others survived; 21 patients were followed up more than 5 years and 5 patients were lost to follow-up. Conclusion Surgical resection is recommended for tracheal and main bronchial tumors. Patients with small benign tumor may choose local tracheal resection; tracheal segmental resection and end-to-end anastomosis is the most common surgical treatment. Patients with more than half of the whole length of tracheal defects or in the risk of anastomotic ischemic necrosis may be suggested to receive tracheal reconstruction.
Objective To compare the humidification effect of the MR410 humidification system and MR850 humidification system in the process of mechanical ventilation. Methods Sixty-nine patients underwent mechanical ventilation were recruited and randomly assigned to a MR850 group and a MR410 group. The temperature and relative humidity at sites where tracheal intubation or incision, the absolute humidity, the sticky degree of sputum in initial three days after admission were measured. Meanwhile the number of ventilator alarms related to sputum clogging and pipeline water, incidence of ventilator associated pneumonia, duration of mechanical ventilation, and mortality were recorded. Results In the MR850 group,the temperature of inhaled gas was ( 36. 97 ±1. 57) ℃, relative humidity was ( 98. 35 ±1. 32) % , absolute humidity was ( 43. 66 ±1. 15) mg H2O/L, which were more closer to the optimal inhaled gas for human body.The MR850 humidification system was superior to the MR410 humidification system with thinner airway secretions, less pipeline water, fewer ventilator alarms, and shorter duration of mechanical ventilation. There was no significant difference in mortality between two groups. Conclusions Compared with MR410 humidification system, MR850 humidification system is more able to provide better artificial airway humidification and better clinical effect.
Objective To improve the knowledge on dynamic benign central airway stenosis through two typical cases. Methods The clinical features, imaging findings, and bronchial morphologic changes of two cases characterized by dynamic benign central airway stenosis were retrospectively analyzed. The etiologies for the two cases were tracheobronchomalacia (TBM) and excessive dynamic airway collapse (EDAC), respectively. Results Central airway stenosis and reversible airway obstruction were common clinical characteristics for the two cases. However, there were identifiable differences on imaging findings and bronchial morphologic changes between the two cases. Multidetector computed tomography showed sabre-sheath trachea and narrowed trachea in coronal position for TBM, while small sized trachea in exhalation phase and narrowed trachea in sagittal position for EDAC. Bronchoscopy displayed narrowed airway, swelling mucosa, and the absence of annular cartilage for TBM, while crescent airway with membranacea part protruding to lumen in inspiration phase, and the integrity of annular cartilage for EDAC. Conclusion Multidetector computed tomography and bronchoscopy examinations are valid methods to distinguish TBM and EDAC, which are both characterized by dynamic benign central airway stenosis.
Objective To investigate the effects of FasL gene-modified dendritic cell (DC) on the airway inflammation in mice sensitized/challenged by house dust mite (HDM) allergen.Methods FasL gene-modified DC (FasL-DC) and control DC (nontransfection DC) were administrated into HDM sensitized and challenged mice by intratracheal injection respectively，then HDM sensitized and challenged mice were sacreificed two days later.Total and differentiation cell counts and levels of interleukin-4（IL-4），IL-5 and interferon-γ(IFN-) in bronchoalveolar lavage fluid (BALF) were detected and lung histological features were observed.Results After administration of FasL-DC，lung allergic inflammation was ameliorated while total cell counts，the percentage of eosinophil ,the levels of IL-4 and IL-5 in BALF decreased and the level of IFN- in BALF increased.Conclusion Administrating FasL-DC into HDM sensitized/challenged mice can inhibit Th2 cells activation and ameliorate airway allergic inflammation.
【摘要】 目的 探讨手术治疗鼻气道狭窄对阻塞性睡眠呼吸暂停低通气综合征(obstructive sleep apnea hypopnea syndrome，OSAHS)患者的疗效。 方法 2008年2月-2010年2月，对300例OSAHS患者行鼻内镜鼻腔手术治疗，比较患者手术前后打鼾程度、嗜睡程度和鼾声评分。 结果 手术治疗鼻气道狭窄后患者嗜睡评分及鼾声评分平均值均小于术前，差异有统计学意义(Plt;0.05)，手术有效率88.67%，手术并发症发生率0.67%，为鼻中隔穿孔、鼻腔粘连。 结论 手术治疗鼻气道狭窄是治疗因鼻气道狭窄所致OSAHS的一种有效方法。【Abstract】 Objective To explore the therapeutic effect of the surgery of narrow nasal cavity on the obstructive sleep apnea hypopnea syndrome (OSAHS). Methods A total of 300 patients with OSAHS from February 2008 to February 2010 underwent the surgery of narrow nasal cavity and the pre- and post-operative Epworth sleepiness scale and snore scale were analyzed. Results After the surgery of narrow nasal cavity, snore degree, somnolence scale and snore scale decreased compared with those before the operation (Plt;0.05). The effective rate of the surgery was 88.67% and the rate of operative complication was 0.67%. Conclusion The surgery of narrow nasal cavity is effective for the patients with OSAHS caused by narrow nasal cauity.
慢性阻塞性肺疾病( COPD) 被定义为一种慢性肺部“炎症”性疾病。COPD 的炎症反应由吸烟、大气污染等有害颗粒或气体所诱发, 主要累及小气道和肺实质, 导致慢性支气管炎和气道阻塞; 同时还导致肺实质的破坏, 引起肺气肿, 最终形成不能完全可逆的气流受限。吸烟是COPD 发病的主要危险因素。虽然, 戒烟可以改变COPD 的自然病程, 减缓肺功能的下降速率。但是, 戒烟后COPD炎症并不能完全消除, COPD疾病进程也不会因此而“止步”。近年的研究发现部分COPD 患者停止吸烟后, 炎症反应仍在相当长的时间内持续存在[1] 。这些现象提示COPD 炎症过程一旦启动, 似乎就难以终止。COPD 炎症发生发展的机制还远未阐明。