目的:探讨纤维支气管镜(简称纤支镜)肺泡灌洗术在治疗肺部感染性疾病的疗效。方法:共从内科系统中入选社区获得性肺炎和医院获得性肺炎患者122例,将其分为二组,治疗组:传统治疗加纤支镜肺泡灌洗术治疗肺部感染,共52例;对照组:传统方法治疗肺部感染,共70例。结果:两组病例在发热时间,咳嗽,咳痰及肺部罗音消失时间,住院日,抗生素使用时间,治愈率和死亡率方面对比均有显著性差异(Plt;0.05)。结论:纤支镜肺泡灌洗术在治疗肺部感染性疾病的疗效确切,且术中危险性小,值得推广。
ObjectiveTo investigate the effect of recruitment maneuver (RM) following fibrobronchoscopy in invasively mechanically ventilated (IMV) patients with excessive airway secretions or foreign body aspiration. MethodsFrom September 2012 to July 2014, 200 eligible patients were randomly assigned to intervention group (n=100) and control group (n=100) . Airway clearance by fibrobronchoscopy was conducted in both the two groups, but RM was subsequently performed only in the intervention group. Outcome measurements included oxygenation index, partial pressure of carbon dioxide (PaCO2), heart rate (HR), air way resistance (Raw) and dynamic lung compliance (Cdyn) before and 2 hours after treatment, and duration of IMV and Intensive Care Unit (ICU) stay were also analyzed. ResultsAfter treatment with fibrobronchoscopy, oxygenation index [intervention vs. control: (291.14±38.49) vs. (241.39± 35.62) mm Hg (1 mm Hg=0.133 kPa)], PaCO2 [(41.65±7.73) vs. (38.87±7.97) mm Hg] and Cdyn [(48.94±11.21) vs. (39.59±10.98) mL/cm H2O (1 cm H2O=0.098 kPa) ] were significantly increased, while HR [(95.41±20.59) , vs. (106.47±19.11) beats/min] and Raw [(17.87±8.32) vs. (23.98±7.88) cm H2O/(L·s)] were significantly decreased in both groups (P ＜ 0.01) . Duration of IMV and ICU stay in the intervention group were (15.72±6.42) and (19.85±8.12) days respectively, while in the control group were (20.49±7.21) and (27.87±10.33) days. Compared with the control group, patients in the intervention group had lower Raw, duration of IMV and ICU stay, and higher Cdyn, oxygenation index, and PaCO2 (P ＜ 0.01) , but no significant difference was found in HR (P ＞ 0.05) . ConclusionIn mechanically ventilated patients with excessive airway secretion or foreign body aspiration, recruitment maneuver following fibrobronchoscopy is of great clinical importance, due to the decrease of the duration of mechanical ventilation and ICU stay by re-inflating the collapsing alveoli, improving pulmonary ventilation and gas exchange, lung compliance and diffusion capacity.
目的 评价喉罩联合T型密封接头通气在新生儿无痛纤维支气管镜（纤支镜）诊治中的临床效果。 方法 对2010年3月－2012年10月收治的33例拟行纤支镜诊治的新生患儿，分为喉罩组（Ⅰ组）和常规组（Ⅱ组），两组患儿在术前半小时均静脉注射咪唑安定0.2～0.3 mg/kg基础上，Ⅰ组静脉注射枸橼酸芬太尼3～5 μg/kg，置入喉罩联合T型密封接头通气下行纤支镜诊治；Ⅱ组常规表面麻醉下行纤支镜诊治。分析术前（T1）、通过声门（T2）、诊治中（T3）、检查后（T4），脉搏血氧饱和度（SpO2）、心率（HR）的变化情况、纤支镜从T型密封接头入口或鼻孔到通过声门的时间、镜检时间、支气管肺泡灌洗次数、镜检期间不良反应（呛咳、憋气、肢体运动、呼吸道损伤）及麻醉满意度（由内镜医师评价）。 结果 Ⅰ组与Ⅱ组比较，T1、T4时间点SpO2、HR差异无统计学意义，T2、T3时间点SpO2＜85%、HR＜100次/min的发生率Ⅰ组与Ⅱ组比较差异有统计学意义（P＜0.01）；纤支镜从T型密封接头入口或鼻孔到通过声门时间差异无统计学意义（P＞0.05）；Ⅱ组镜检时间短于Ⅰ组，支气管肺泡灌洗次数少于Ⅰ组；Ⅰ组不良反应低于Ⅱ组，麻醉满意度高于Ⅱ组（P＜0.05）。 结论 喉罩联合T型密封接头通气在新生儿无痛纤支镜诊治气道管理安全有效可行，医师能从容操作。
目的 观察比较右美托咪啶复合丙泊酚应用于无痛纤维支气管镜检查，及对呼吸循环、苏醒时间的影响和不良反应。 方法 2011年3月－2012年12月选择美国麻醉师协会评分Ⅰ～Ⅱ级行无痛纤维支气管镜检查患者50例，采用随机数字表法分为两组（n=25），即右美托咪啶复合丙泊酚组（A组）和芬太尼复合丙泊酚组（B组）。A组术前15 min给盐酸右美托咪啶负荷剂量0.6～0.8 μg/kg泵入，B组泵入相同剂量的生理盐水后，缓慢静注芬太尼0.05 mg；两组静注1～2 mg/kg丙泊酚负荷量，后以2～4 mg/（kg·h）泵注丙泊酚维持。记录两组患者麻醉前、置纤维支气管镜前、置纤维支气管镜后2 min、15 min、苏醒时的平均动脉压（MAP）、心率（HR）、呼吸频率（RR）、血氧饱和度（SpO2）和心电图（ECG）等情况，并记录手术时间、术后苏醒时间及丙泊酚用量和检查治疗期间患者肢体躁动、呛咳等情况。 结果 与B组比较，A组术中的MAP、HR和RR较为平稳，缩短了术后苏醒时间，可减少丙泊酚的用量（P＜0.05）。 结论 右美托咪啶复合丙泊酚应用于无痛纤维支气管镜检查，是一种安全、可行的麻醉方法。
Objective To investigate a suspected outbreak of hospital-acquired infections caused by Mycobacterium chelonae related to flexible bronchoscope (hereinafter referred to as “bronchofibroscope”) and apply targeted high-throughput sequencing (tNGS) technology for etiological analysis, providing references for controlling hospital infection outbreaks. Methods A retrospective survey of patients who were detected with Mycobacterium chelonae through tNGS testing of bronchoalveolar lavage fluid (BALF) after bronchofibroscopy at the Zhengdong District, People’s Hospital of Henan University of Chinese Medicine, People’s Hospital of Zhengzhou between May 1, 2018 and March 18, 2024. The causes were investigated through comprehensive measures including on-site epidemiological surveys and environmental health assessments, and intervention measures were developed and evaluated for effectiveness. Results A total of 52 patients were included. Mycobacterium chelonae was detected in 30 patients, nosocomial infection was excluded in all cases. The suspicious contaminated bronchofibroscope lavage fluid and its cleaning and disinfection equipment, environment and other samples were collected. The traditional microbial culture results were negative. The tNGS results showed that Mycobacterium chelonae was detected in bronchofibroscope lavage fluid (sequence number 156), and all the patients with Mycobacterium chelonae detected in BALF used the bronchofibroscope. It was judged that this event was a pseudo-outbreak of nosocomial infection caused by the contamination of bronchofibroscope with the patient’s BALF. After three months of continuous follow-up after the comprehensive control measures were taken, Mycobacterium chelonae was not detected by tNGS in bronchofibroscope lavage fluid or patients’ BALF. All patients in the hospital improved and discharged without any new cases. The pseudo-outbreak of nosocomial infection was effectively controlled. Conclusions There are many links in the reprocessing of bronchofibroscope, which is easy to cause pollution, and the management needs to be strengthened. tNGS detection has the characteristics of high efficiency, few background bacteria and clear pathogen spectrum, which can be used as a supplementary means for the investigation of nosocomial infection outbreaks, and is of great significance for identifying the source of infection and determining the transmission route.