目的 探讨综合呼吸康复训练对老年慢性阻塞性肺疾病急性期（AECOPD）患者的临床症状、生活质量、活动能力、肺功能、肺康复依从性的影响。方法 纳入70 例AECOPD 患者,随机数字分为对照组（n=35）和干预组（n=35）,对照组在常规治疗基础上予缩唇腹式呼吸功能锻炼,干预组在常规治疗基础上进行综合呼吸康复训练,干预前后采用慢性阻塞性肺疾病评估测试（CAT）调查问卷、改良版英国医学研究委员会呼吸问卷（mMRC）、肺功能第一秒用力呼气容积（FEV1）预计值进行评估。结果 对照组呼吸康复训练前后CAT评分、mMRC量表呼吸困难评级比较差异均有统计学意义（t=16.781,t=8.103,均P<0.001）;干预组呼吸康复训练前后CAT评分、mMRC呼吸困难评级比较差异也均有统计学意义（t=24.035,t=15.938,均P<0.001）;干预组患者的CAT评分、mMRC量表呼吸困难评级较对照组下降明显。结论 综合呼吸康复训练能有效改善 AECOPD 患者临床症状、增强患者活动能力、提高生活质量、提高肺康复依从性。

Objective To investigate the effects of comprehensive respiratory rehabilitation training on clinical symptoms,quality of life,activity ability,lung function and compliance of elderly patients with acute exacerbation of obstructive pulmonary disease（AECOPD）．Methods Seventy patients with AECOPD were included and randomly divided into control group（n=35）and intervention group（n=35）．The control group was given routine treatment and respiratory muscle function exercise．The intervention group was given routine treatment and comprehensive respiratory rehabilitation training．COPD Assessment Test（CAT）,modified Medical Research Council Scale（mMRC）and FEV1 predicted value of lung function were used to evaluate before and after intervention．Results In the control group,differences of CAT score and mMRC score were significant（t=16.781,t=8.103,P<0.001）before and after respiratory rehabilitation training．In the intervention group,the CAT score before and after respiratory rehabilitation training showed a 0.01 level of significance（t=24.035,P<0.001）,and the mMRC score before and after training showed a 0.01 level of significance（t=15.938,P<0.001）．There were significant differences between control group and intervention group（P<0.01）．Compared with the control group,CAT score and mMRC score were significantly lower in the intervention group．Conclusions Comprehensive respiratory rehabilitation training can effectively improve the clinical symptoms of AECOPD patients,enhance the activity ability of patients,improve the quality of life,and improve the compliance of patients to perform pulmonary rehabilitation．

目的 探讨清热化痰宣肺汤治疗痰热壅肺型重症肺炎的临床效果。方法 选择2022年3月—2023年6月天津市中西医结合医院收治的158例痰热壅肺型重症肺炎患者进行探讨,采用随机分组法分为研究组和对照组,每组各79例,对照组接受常规对症处理联合抗生素治疗,研究组在对照组基础上给予清热化痰宣肺汤,两组均治疗2周,比较疗效、中医证候积分、肺功能、血气分析结果以及不良反应发生情况。结果 研究组总有效率为94.94%,高于对照组的84.81（P=0.035）;研究组治疗后发热、痰壅以及气促评分分别为（1.12±0.33）分、（1.02±0.28）分及（1.16±0.30）分;对照组治疗后发热、痰壅以及气促评分分别为（1.45±0.36）分、（2.11±0.42）分及（2.06±0.39）分,研究组和对照组各项评分均较治疗前降低（均P<0.05）,研究组低于对照组（P均<0.05）;治疗后研究组PEF、FEV₁、FVC以及MVV分别为（3.48±0.53）L/s、（2.95±0.52）L、（2.98±0.58）L、（88.15±5.25）L/min,治疗后对照组的PEF、FEV₁、FVC以及MVV分别为（4.22±0.53）L/s、（2.41±0.47）L、（2.98±0.58）L、（88.15±5.25）L/min,两组均较治疗前升高（均P<0.05）,且研究组高于对照组（均P<0.05）; 治疗后研究组和对照组PaO₂分别为（9.77±1.12）kPa、（9.33±1.09）kPa,均较治疗前升高（均P<0.05）,研究组高于对照组（P=0.013）,治疗后研究组和对照组的PaCO₂分别为（4.22±0.14）kPa、（5.11±0.16）kPa,均较治疗前下降（均P<0.05）,研究组低于对照组（P<0.001）;研究组出现3例恶心不良反应,对照组未见不良反应发生,组间无显著差异（P>0.05）。结论 清热化痰宣肺汤治疗痰热壅肺型重症肺炎效果理想,可明显改善肺功能及血气指标,且具有较高安全性。

目的 探讨俯卧位通气在脓毒症合并急性肺损伤患儿的应用效果。方法 选取泉州市儿童医院2020年9月—2023年9月收治的72例脓毒症合并急性肺损伤患儿,应用抽签法将其分为观察组与对照组,均为36例。对照组患儿实施常规仰卧位机械通气与对应护理,观察组患儿在常规护理基础上增加俯卧位通气与对应护理。对比两组患儿机械通气时间,干预前和干预3 d后气道平台压和心率水平,动脉血二氧化碳分压（PaCO₂）、动脉血氧分压（PaO₂）,并计算动脉血氧分压与吸入气中的氧浓度分数比值（PaO₂/FiO₂）,评价两组患儿预后及不良事件发生情况。结果 观察组机械通气时间明显低于对照组（P<0.05）,干预后两组患儿气道平台压、心率均降低,且观察组低于对照组（P<0.05）;干预后两组患儿PaO₂/FiO₂、PaO₂水平升高,观察组高于对照组,PaCO₂降低,观察组低于对照组（P<0.05）;干预后两组患儿全身性感染相关性器官功能衰竭评分（SOFA）、急性生理和慢性健康状况评分Ⅱ（APACHEⅡ）评分均降低,观察组低于对照组（P<0.05）;两组患儿呼吸机管路折管、管路滑脱、压力性损伤等不良事件发生率对比差异无统计学意义（P>0.05）。结论 俯卧位通气在脓毒症合并急性肺损伤患儿的应用效果显著,可降低患儿气道平台压及心率,缩短机械通气时间,改善患儿通气功能,有助提升预后水平。

Objective To explore the application effect of prone position ventilation in children with sepsis complicated with acute lung injury．Methods From September 2020 to September 2023,72 children with sepsis and acute lung injury admitted to Quanzhou Children's Hospital were selected and divided into observation group and control group by drawing lots,both with 36 cases．The children in the control group received routine supine mechanical ventilation and corresponding nursing,and the children in the observation group added prone ventilation and corresponding nursing on the basis of routine nursing．By comparing the duration of mechanical ventilation,airway plateau pressure and heart rate level,PaCO₂,PaO₂,PaO₂/FiO₂,the prognosis and occurrence of adverse events in the two groups were evaluated．Results The mechanical ventilation time in the observation group was significantly shorter than that in the control group（P<0.05）．After intervention,the airway plateau pressure and heart rate levels of the two groups of children decreased,and the observation group was lower than the control group（P<0.05）．After the intervention,the levels of PaO₂/FiO₂ and PaO₂ in the two groups of children increased,with the observation group higher than the control group,while the level of PaCO₂ was lower,with the observation group lower than the control group（P<0.05）．After the intervention,the SOFA and APACHE II scores of the two groups of children decreased,and the observation group was lower than the control group（P<0.05）．There was no difference in the incidence of adverse events such as ventilator tube folding,tube slip and pressure injury between the two groups（P>0.05）．Conclusions The application of prone position ventilation in children with sepsis combined with acute lung injury has a significant effect,which can reduce airway plateau pressure,lower heart rate,shorten mechanical ventilation time,improve ventilation function,and assist in improving prognosis．

目的 探究肺炎支原体（MP）感染大叶性肺炎患儿常规通气、脉冲振荡肺功能特点。方法 将2022年5月—2023年5月广州市妇女儿童医疗中心收治的90例MP感染大叶性肺炎患儿为观察组,通气体检健康儿童50例为对照组,依据病变将累及多肺叶作为观察A组（10例）,累及单肺叶作为观察B组（80例）。均接受常规通气与脉冲振荡肺功能测定,观察测定结果,以此为基础,分析肺功能特点。结果 观察组各常规通气肺功能指标测定结果均低于对照组健康儿童,差异有统计学意义（P<0.05）。观察组R5、R20的实测值/预计值高于对照组,X5实测值低于对照组,差异有统计学意义（P<0.05）。气道阻力指标与肺功能呈负相关关系（P<0.05）。观察组两组最大肺活量（VCMAX）、呼气流量峰值（PEF）、用力肺活量（FVC）75%、FVC50%、FVC25%的实测值/预计值差异无统计学意义,观察A组患儿FVC、FEV₁的实测值/预计值低于观察B组患儿,差异有统计学意义（P<0.05）。两组患儿脉冲振荡肺功能对比差异无统计学意义（P>0.05）。90例患儿中,常规通气异常患儿12例,患儿治疗前后VCMAX、FVC75%、FVC50%的实测值/预计值差异无统计学意义,患儿治疗前FVC、FEV₁、PEF、FVC25%的实测值/预计值均低于治疗后,差异有统计学意义（P<0.05）。结论 常规通气与脉冲振荡相关性良好,气道阻力对VCMAX及FVC具有反向作用,MP感染大叶性肺炎主要表现为小气道通气功能受损,气道阻力升高。

Objective To explore the lung function characteristics of routine ventilation and pulse oscillation in children with lobar pneumonia infected with Mycoplasma pneumoniae（MP）．Methods Ninety children with MP infected lobar pneumonia admitted to Guangzhou Women and Children's Medical Center from May 2022 to May 2023 were selected as the observation group,and 50 healthy children undergoing ventilation examination were selected as the control group．Based on the lesion,cases with multi lobar involvement were selected as the observation group A（10 cases）,cases with single lobar involvement were selected as the observation group B（80 cases）．All patients underwent routine ventilation and pulse oscillation received pulmonary function measurement,and the measurement results were observed．Based on this,the characteristics of lung function were analyzed．Results The results of routine ventilation lung function indicators in the observation group were lower than those in the control group,and the difference was statistically significant（P<0.05）．The measured/expected values of R5 and R20 in the observation group were higher than those in the control group,while the measured values of X5 were lower than those in the control group,with statistical significance（P<0.05）．There is a negative correlation between airway resistance indicators and lung function（P<0.05）．The measured/predicted values of vital capacity max（VCMAX）,peak expiratory flow（PEF）,forced vital capacity（FVC）75%,FVC50%,and FVC25% in the observation group were not with statistically significant difference．The measured/predicted values of FVC and FEV₁ in the observation group A were lower than those in the observation group B,and the difference was statistically significant（P<0.05）．There was no statistically significant difference in pulmonary function between the two groups of pediatric patients with pulse oscillation（P>0.05）．Among the 90 patients,12 had abnormal conventional ventilation．The measured/predicted values of VCMAX,FVC75%,and FVC50% before and after treatment were not significantly different．The measured/predicted values of FVC,FEV₁,PEF,and FVC25% before treatment were lower than those after treatment,and the difference was statistically significant（P<0.05）．Conclusions There is good correlation between conventional ventilation and pulse oscillation．Airway resistance has a reverse effect on VCMAX and FVC．MP infected lobar pneumonia is mainly characterized by impaired small airway ventilation function and increased airway resistance．

目的 探讨住院儿童甲型流感病毒肺炎合并其他病原菌感染的临床特征。方法 通过回顾性研究方法,分析2021年6月—2023年6月广州市妇女儿童医疗中心住院治疗的153例甲型流感病毒肺炎患儿的临床资料,针对有无合并其他病原菌感染,分为混合感染组及非混合感染组两组,分别为98例及55例,分析并对比两组的临床特征。结果 甲型流感病毒肺炎患儿以发热、咳嗽、呕吐/腹泻等症状为主,其中混合感染组患儿呕吐/腹泻症状占比高于非混合感染组（P<0.05）;两组患儿其他症状及并发症对比差异无统计学意义（P>0.05）;儿童甲型流感病毒肺炎患儿检出合并细菌感染的患儿65例（29.41%）,合并肺炎支原体感染的患儿33例（21.57%）;合并病毒感染的患儿20例（13.07%）。与非混合感染组比较,混合感染组患儿乳酸脱氢酶水平更高,白细胞计数<4×10⁹/L的人数占比更少（P<0.05）;其他实验室指标对比差异无统计学意义（P>0.05）;经过抗病毒及对症治疗后,150例（98.04%）患儿痊愈出院,3例出现严重并发症,其均伴有其他病原菌感染。与非混合感染组比较,混合感染组患儿住院天数更长、住院费用更高（P<0.05）;其他预后指标对比差异无统计学意义（P>0.05）。结论 甲型流感病毒肺炎患儿易感染其他的病原菌,导致疾病治疗难度加大,因此临床要提高警惕,以防混合感染情况发生,尽早采取有效的诊治措施,提高疾病早期治愈率。

Objective To explore the clinical characteristics of hospitalized children with influenza A virus pneumonia complicated with other pathogens．Methods The clinical data of 153 children with influenza A virus pneumonia hospitalized in Guangzhou Women and Children Medical Center in the past two years（June 2021 ~ June 2023）were analyzed retrospectively． According to whether they were infected with other pathogens,they were divided into mixed infection group and non-mixed infection group,with 98 cases and 55 cases respectively．The clinical characteristics of the two groups were analyzed and compared．Results Fever,cough,vomiting and diarrhea were the main symptoms in children with influenza A virus pneumonia,and the proportion of vomiting and diarrhea in children with mixed infection group was higher than that in children without mixed infection group（P<0.05）．There was no significant difference in other symptoms and complications between the two groups（P>0.05）．There were 65 children（29.41%）with influenza A virus pneumonia and 33 children（21.57%）with mycoplasma pneumonia,20 children（13.07%）with virus infection．Compared with non-mixed infection group,the level of lactate dehydrogenase in children with mixed infection group was higher,and the proportion of children with white blood cell count<4×10⁹/L was less（P<0.05）．There was no significant difference in other laboratory indexes（P>0.05）．After antiviral and symptomatic treatment,150 cases（98.04%）were cured and discharged,and 3 cases had serious complications,all of which were accompanied by other pathogens．Compared with non-mixed infection group,children in mixed infection group had longer hospitalization days and higher hospitalization expenses（P<0.05）．There was no significant difference in other prognostic indicators（P>0.05）．Conclusions Children with influenza A virus pneumonia are easily infected with other pathogens,which makes it more difficult to treat the disease．Therefore,we should be vigilant in clinic to prevent mixed infection and take effective diagnosis and treatment measures as soon as possible to improve the early cure rate of the disease．

目的 探讨福莫特罗联合格隆溴铵对慢性阻塞性肺疾病急性加重期（AECOPD）患者的疗效。方法 选择2021年1月—2023年6月廉江市人民医院收治的97例AECOPD患者进行研究,在双方知情基础上,通过单双号抽签方式分组,抽取单号纳入对照组（n=48,予以福莫特罗治疗）,抽取双号纳入观察组（n=48,予以福莫特罗联合格隆溴铵治疗）,对比两组肺功能指标、血气指标、症状改善情况及出现的不良反应。结果 治疗后两组的肺功能指标均高于治疗前,而观察组各指标高于对照组（P<0.05）;治疗后两组PaO₂高于治疗前,PaCO₂低于治疗前,且观察组上述血气指标与对照组比较差异有统计学意义（P<0.05）;治疗后两组的CAT及SGRQ评分均低于治疗前,其中观察组评分低于对照组（P<0.05）;观察组（8.33%）与对照组（12.24%）不良反应率比较,差异不显著（P>0.05）。结论 采用福莫特罗联合格隆溴铵治疗AECOPD患者,有助于改善患者肺功能,使其血气指标得到改善,还可有效缓解其呼吸道症状,且安全性得到保障。

Objective To explore the curative effect of formoterol combined with glycopyrronium bromide on patients with acute exacerbation of chronic obstructive pulmonary disease（AECOPD）. Methods The research cut-off period was from January 2021 to June 2023．A total of 97 patients with AECOPD were selected from Lianjiang People's Hospital for research．On the basis of mutual knowledge,they were divided into groups by odd and even numbers．The odd numbers were drawn into the control group（n=48,treated with formoterol）and the odd numbers were drawn into the observation group（n=48,treated with formoterol+glycopyrronium bromide）,the pulmonary function index,blood gas index,symptom improvement and adverse reactions were compared between the two groups. Results After treatment,the lung function indexes of the two groups were higher than those before treatment,while the indexes of the observation group were higher than those of the control group（P<0.05）．PaO₂ was higher and PaCO₂ was lower in the two groups after treatment,and the blood gas indexes in the observation group were different from those in the control group（P<0.05）．The scores of COPD assessment test and St. George's Respiratory Questionaire in the two groups after treatment were lower than those before treatment,while the scores in the observation group were lower than those in the control group（P<0.05）;There was no significant difference between the observation group（8.33%）and the control group（12.24%）（P>0.05）. Conclusions The choice of formoterol and qualified ammonium bromide for AECOPD is helpful to improve the lung function,blood gas index and respiratory symptoms,And the security is guaranteed．

目的 探讨复方甘草口服液联合泼尼松治疗特发性肺间质纤维化急性加重期患者的疗效。方法 选取张掖市第二人民医院2020年1月—2023年10月收治的128例特发性肺间质纤维化急性加重期患者,应用随机数字表法分为两组,每组各64例。对照组采取泼尼松治疗,观察组采取复方甘草口服液联合泼尼松治疗。对比其临床疗效,治疗前后血清肺纤维化指标及炎症因子水平,最后对比其不良反应发生率。结果 观察组总有效率93.75%,高于对照组的79.69%（χ²=5.490,P=0.019）;治疗前两组层黏连蛋白（LN）、Ⅲ型前胶原肽（PC-Ⅲ）、透明质酸（HA）对比差异无统计学意义（P>0.05）,治疗后两组患者LN、PC-Ⅲ、HA均降低,观察组[（89.25±7.61）μg/L;（68.33±7.68）mg/L;（81.53±8.54）μg/L]低于对照组[（96.17±8.34）μg/L;（75.68±8.25）mg/L;（95.68±9.25）μg/L],对比差异有统计学意义（t₁=4.903,P₁<0.001;t₂=5.217,P₂<0.001;t₃=8.992,P₃<0.001）;治疗前两组患者肿瘤坏死因子-α（TNF-α）、白细胞介素-4（IL-4）、IL-10、转化生长因子（TGF-β1）对比差异无统计学意义（P>0.05）,治疗后两组TNF-α、IL-4、IL-10、TGF-β1水平降低,观察组[（61.94±8.24）ng/L;（4.43±1.17）ng/mL;（65.49±13.24）g/L;（114.73±13.12）pg/mL]低于对照组[（75.52±9.43）ng/L;（6.31±1.28）ng/mL;（79.27±9.38）g/L;（147.76±15.46）pg/mL],对比差异有统计学意义（t₁=8.675,P₁<0.001;t₂=8.673,P₂<0.001;t₃=6.794,P₃<0.001;t₄=13.032,P₄<0.001）;两组不良反应发生率对比差异无统计学意义（7.81% vs 6.25%,χ²=0.120,P=0.730）。结论 复方甘草口服液联合泼尼松治疗特发性肺间质纤维化急性加重期疗效显著,可辅助延缓患者肺纤维化发展进程,减轻机体炎症反应,安全性较高。

Objective To investigate the efficacy of compound licorice oral liquid combined with prednisone in patients with acute exacerbations of idiopathic pulmonary interstitial fibrosis. Methods A total of 128 patients with acute exacerbation of idiopathic pulmonary interstitial fibrosis admitted to Zhangye Second People's Hospital from January 2020 to October 2023 were divided into two groups by random number table method,with 64 patients in each group．The control group received prednisone treatment,while the observation group received compound licorice oral liquid combined with prednisone treatment．Compare its clinical efficacy,serum pulmonary fibrosis indicators and inflammatory factor levels before and after treatment,and finally compare its incidence of adverse reactions. Results The total response rate in the observation group was 93.75%,which was higher than the 79.69% in the control group（χ²=5.490,P=0.019）．There was no difference between the two groups of LN,PC-III,and HA（P>0.05）,LN,PC-III and HA were decreased in both groups,while the observation group[（89.25±7.61）μg/L;（68.33±7.68）mg/L;（81.53±8.54）μg/L] was lower than the control group[（96.17±8.34）μg/L;（75.68±8.25）mg/L;（95.68±9.25）μg/L],the contrast difference was statistically significant（t₁=4.903,P₁<0.001;t₂=5.217,P₂<0.001;t₃=8.992,P₃<0.001）．There was no difference in TNF-α,IL-4,IL-10,and TGF-β1 between the two groups before treatment（P>0.05）,lower levels of TNF-α,IL-4,IL-10,and TGF-β1 in the two patient groups after treatment,the observation group[（61.94±8.24）ng/L;（4.43±1.17）ng/mL;（65.49±13.24）g/L;（114.73±13.12）pg/mL] was lower than the control group[（75.52±9.43）ng/L;（6.31±1.28）ng/mL;（79.27±9.38）g/L;（147.76±15.46）pg/mL],the contrast difference was statistically significant（t₁=8.675,P₁<0.001;t₂=8.673,P₂<0.001;t₃=6.794,P₃<0.001;t₄=13.032,P₄<0.001）．There was no difference in the incidence of adverse effects between the two groups（7.81% vs 6.25%,χ²=120,P=0.730）. Conclusions The combination of compound licorice oral liquid and prednisone has a significant therapeutic effect on the acute exacerbation of idiopathic pulmonary interstitial fibrosis．It can assist in delaying the progression of pulmonary fibrosis in patients,reducing the body's inflammatory response,and has high safety．

目的 探讨血浆置换联合泼尼松（PDN）联合环磷酰胺（CTX）治疗抗黑色素瘤分化相关基因5（MDA5）抗体阳性皮肌炎（DM）伴肺间质纤维化（ILD）患者疗效及安全性。方法 回顾性分析2014年6月—2023年6月普洱市人民医院诊断的MDA5阳性DM伴ILD患者40例,其中治疗组20例,采用血浆置换联合PDN 1 mg/kg每日1次口服,4周后减量,每周减总量10%,CTX 1 g每月1次静脉滴注,共6次治疗;另20例设为对照组,采用PDN 1 mg/kg每日1次口服,4周后减量,每周减总量10%,CTX 1 g每月1次静脉滴注,共6次治疗,分别于治疗后3月、6月检测一氧化碳弥散量（DLCO）、第1秒用力呼气量（FEV₁）,血清铁蛋白（SF）、C-反应蛋白（CRP）、涎液化糖链抗原（KL-6）、MDA5转阴率行疗效评估。结果 在治疗3个月和6个月时,两组患者的DLCO、FEV1、SF、CRP、KL-6、MDA5转阴率等指标的完全缓解率不一致。其中,3个月时,治疗组上述指标的完全缓解率依次为95%、85%、90%、90%、90%、85%,对照组依次为15%、20%、20%、15%、0%、0%。两组患者在治疗3个月的DLCO、FEV1、SF、CRP、KL-6水平和MDA5转阴数均有所不同。其中治疗组的DLCO、KL-6、CRP水平均较对照组降低（P<0.01）,治疗组FEV₁水平较对照组升高（P<0.01）,治疗组SF水平较对照组降低（P<0.05）,两组治疗6个月时,治疗组上述指标缓解率依次为95%、85%、90%、90%、90%、85%,对照组依次为20%、25%、20%、20%、20%、5%。两组患者在DLCO、FEV₁、SF、CRP、KL-6水平以及MDA5转阴数和死亡例数方面比较差异均有统计学意义,其中治疗组的DLCO、KL-6和CRP水平均较对照组降低（P<0.01）,治疗组FEV₁水平较对照组升高（P<0.01）,SF水平治疗组较对照组降低（P<0.05）。结论 在MDA5抗体阳性DM伴ILD患者治疗中,给予血浆置换联合PDN、CTX治疗,可以提高疗效,降低病死率。

Objective To explore the effect of plasmapheresis combined with prednisone（PDN）plus cytoxan（CTX）on patients with anti-melanoma differentiation-associated gene 5（MDA 5）antibody-positive dermatomyositis（DM）with interstitial lung disease（ILD）. Methods The data of 40 patients with MDA 5 positive DM and ILD diagnosed in the People's Hospital of Pu'er City from June 2014 to June 2023 were retrospectively was analyzed．Twenty patients of the treatment group were treated with plasmapheresis combined with PDN 1mg / kg once daily,which was reduced by 10% per week after 4 weeks．The other 20 patients of the control group were treated with PDN 1mg / kg once daily,which was reduced after 4 weeks by 10% per week,and CTX 1g once per month．diffusing capacity of the lungs for carbon monoxide（DLCO）,forced expiratory volume in the first second（FEV₁）,serum ferritin（SF）,C-reactive protein（CRP）,Krebs Von den Lungen-6（KL-6）and MDA5 negative conversion rate were measured at 3 and 6 months after treatment,respectively. Results At 3 and 6 months of treatment,complete remission rates of DLCO,FEV₁,SF,CRP,KL-6,MDA 5 conversion and other indicators were inconsistent．Among them,at 3 months,the complete response rate of the above indicators in the treatment group was successively：95%,85%,90%,90%,90% and 85%．The control group was 15%,20%,20%,15%,and 0%,0%．Statistical analysis showed that the levels of DLCO,FEV₁,SF,CRP,KL-6 and MDA 5 significantly varied at 3 months of treatment．Pairwise comparison of LSD found that the DLCO,KL-6 and CRP levels in the treatment group were significantly lower than the control group（P<0.01）,the FEV₁ level in the treatment group was significantly higher（P<0.01）,and the SF level in the treatment group was significantly lower（P<0.05）．After 6 month of treatment,the complete response rate of the above indicators in the treatment group were 95%,85%,90%,90%,90% and 85%,and the complete response rate of the above indicators in the control group was 20%,25%,20%,20%,20% and 5%．Statistical analysis showed the levels of DLCO,FEV₁,SF,CRP,KL-6 for the amount of MDA 5 and the number of deaths between two groups were significantly different．Further pairwise comparison of LSD showed that the DLCO,KL-6 and CRP levels in the treatment group were significantly lower compared with the control group（P<0.01）,the FEV₁ level was significantly increased compared with the control group（P<0.01）,and the SF treatment group was significantly decreased compared with the control group（P<0.05）. Conclusions In the treatment of patients with MDA 5 antibody positive DM with ILD,the treatment of plasmapheresis combined with PDN and CTX can significantly improve the efficacy and reduce the mortality rate．

目的 探讨对于重症肺部感染患者采用药物+纤维支气管镜肺泡灌洗吸痰术治疗的效果。方法 选取2021年9月—2023年5月在郑州市第一人民医院ICU中94例肺部感染患者,分为观察组、对照组,对照组进行常规治疗,观察组采用药物+纤维支气管镜肺泡灌洗吸痰术治疗,对比两组患者的疗效、症状的缓解时间、炎性因子、实验室相关指标以及不良反应。结果 治疗后,观察组患者的治疗有效率91.49%高于对照组76.60%（χ²=3.887,P<0.05）,观察组患者的发热、肺部湿啰音、咳嗽以及咳痰等症状的缓解时间分别为（3.09±1.25）（4.17±2.24）（3.95±1.53）（4.05±1.77）d,均低于对照组（5.14±2.43）（7.03±3.23）（6.40±2.62）（6.32±1.81）d（t=5.143、4.988、5.536、6.147,P<0.05）,观察组的 C 反应性蛋白（C-reactive protein,CRP）、白细胞介素-6（Interleukin-6,IL-6）以及Toll样受体4（Toll-like receptor 4,TLR-4）水平分别为（3.64±0.87）mg/L、（54.59±10.65）ng/mL、（7.94±1.57）%,均低于对照组（7.51±1.43）mg/L、（87.66±11.17）ng/mL、（12.11±2.48）%（t=15.850、14.690、9.740,P<0.05）,观察组的气道压力、动脉血二氧化碳分压（partial pressure of carbon dioxide in artery,PaCO₂）水平分别为（6.92±3.60）cmH₂O、（43.19±6.29）mmHg,低于对照组（8.68±2.98）cmH₂O、（55.43±5.95）mmHg,观察组动脉氧分压（Partial arterial oxygen pressure,PaO₂）（86.06±5.31）mmHg、血氧饱和度（oxyhemoglobin saturation,SpO₂）（98.03±6.63）%高于对照组（68.04±5.19）mmHg、（90.22±5.51）%要高（t=2.582、9.692、16.638、6.221,P<0.05）,观察组中的不良反应发生率为2.13%与对照组10.64%比较差异无统计学意义（χ²=2.849,P>0.05）。结论 对处于ICU中的肺部感染患者治疗时,使用药物+纤维支气管镜肺泡灌洗吸痰术能够改善患者症状,降低炎性因子水平。

Objective To investigate the efficacy of medication combined with bronchoscopic alveolar lavage and sputum aspiration in ICU patients with severe pulmonary infection. Methods Ninety-four patients with pulmonary infection in the ICU of Zhengzhou First People's Hospital from September 2021 to May 2023 were selected and divided into observation group and control group．The control group received routine treatment,and the observation group was treated with medication and bronchoscopic alveolar lavage and sputum aspiration．The efficacy,duration of symptom remission,inflammatory factors,laboratory-related indicators and adverse reactions were compared between the two groups. Results After treatment,the effective rate of 91.49% in observation group was significantly higher than 76.60% in control group（χ²=3．887,P<0.05）．The relief time of fever,pulmonary rale,cough and sputum in observation group was（3.09±1.25）d,（4.17±2.24）d,（3.95±1.53）d,and（4.05±1.77）d,respectively,which were significantly lower than the control group[（5.14±2.43）d,（7.03±3.23）d,（6.40±2.62）d and（6.32±1.81）d]（t=5.143,4.988,5.536,6.147,P<0.05）．The levels of CRP,IL-6 and TLR-4 in the observation group were（3.64±0.87）mg/L,（54.59±10.65）ng/mL and（7.94±1.57）%,respectively．They were significantly lower than（7.51±1.43）mg/L,（87.66±11.17）ng/mL and（12.11±2.48）% in the control group（t=15.850,14.690,9.740,P<0.05）．The airway pressure and PaCO₂ levels of the observation group were（6.92±3.60）cmH₂O and（43.19±6.29）mmHg,respectively,which were significantly lower than those of the control group[（8.68±2.98）cmH₂O and（55.43±5.95）mmHg]．The levels of PaO₂[（86.06±5.31）mmHg] and SpO₂[（98.03±6.63）%] in the observation group were higher than those in the control group[（68.04±5.19）mmHg and（90.22±5.51）%],and there were statistically significant differences（t=2.582,9.692,16.638,6.221,P<0.05）．The adverse reactions of 2.13% in the observation group were lower than 10.64% in the control group,and there was no statistically significant difference（χ²=2.849,P>0.05）. Conclusions In ICU patients with severe lung infection,the treatment of drugs combined with alveolar lavage and fiberoptic bronchoscopic aspiration is better,and can significantly improve the symptoms and inflammatory factor levels of patients．

目的 探究应用高频振荡通气（HFOV）模式下早期肺表面活性物质干预对呼吸窘迫综合征致重度呼吸衰竭患儿转归的影响。方法 选取南阳医学高等专科学校第一附属医院2020年6月—2022年12月收治的120例呼吸窘迫综合征致重度呼吸衰竭患儿作为研究对象,按照随机数字表法将其分为对照组与研究组各60例,对照组行常规通气联合早期肺表面活性物质干预,研究组行HFOV联合早期肺表面活性物质干预,对比两组患儿临床症状、血气指标、肺功能指标、患儿转归分析、并发症以及临床疗效。结果 研究组患儿症状消失时间为（31.28±10.24）h、呼吸机辅助通气时间为（50.13±15.81）h以及住院天数为（12.47±5.48）d,对照组患儿症状消失时间为（59.91±11.56）h,呼吸机辅助通气时间为（91.17±25.47）h及住院天数为（20.11±9.45）d,研究组低于对照组（P<0.05）;治疗后,研究组患儿PaO₂为（77.89±9.10）mmHg,PaCO₂为（41.09±8.25）mmHg,氧合指数为（432.18±37.81）mmHg,对照组患儿PaO₂为（65.28±8.16）mmHg,PaCO₂为（49.71±8.91）mmHg,氧合指数为（258.64±56.74）mmHg,研究组PaO₂、氧合指数高于对照组,且PaCO₂低于对照组（P<0.05）;治疗后,研究组患儿体重潮气量（TV）为（7.68±2.16）mL/kg,达峰容积比（TPEF/TE）为（34.19±4.06）%,达峰时间比（VPEF/VE）为（33.47±3.42）%,对照组患儿TV为（6.64±2.01）mL/kg,TPEF/TE为（28.66±3.81）%,VPEF/VE为（28.95±3.10）%,研究组高于对照组（P<0.05）;研究组患儿支气管肺发育不良（BPD）为11.66%,对照组为13.33%,两组患儿BPD发生率比较差异无统计学意义（P>0.05）;研究组IVH为3.33%、ROP为5.00,对照组脑室内出血（IVH）为8.33%,早产儿视网膜病（ROP）为11.66%,研究组低于对照组（P<0.05）;研究组患儿并发症发生率为6.66%,对照组患儿并发症发生率为20.00%,研究组低于对照组（P<0.05）;研究组患儿总有效率为96.66%,对照组患儿总有效率为83.33%,研究组高于对照组（P<0.05）。结论 HFOV模式下早期肺表面活性物质干预呼吸窘迫综合征致重度呼吸衰竭患儿效果显著,改善患儿呼吸功能与血气指标,并发症较少。

Objective To investigate the effect of early intervention with pulmonary surfactant under HFOV mode on the outcome of severe respiratory failure in children with respiratory distress syndrome．Methods A total of 120 children with severe respiratory failure caused by respiratory distress syndrome admitted to our hospital from June 2020 to December 2022 were selected as the study subjects．They were randomly divided into a control group and a study group of 60 cases each using a random number table method．The control group received routine ventilation combined with early pulmonary surfactant intervention,while the study group received HFOV combined with early pulmonary surfactant intervention．Symptom disappearance,ventilator-assisted ventilation,hospital stay,blood gas indicators,lung function indicators,analysis of pediatric outcomes,complications,and clinical efficacy were compared between the two groups．Results The time of symptom disappearance was（31.28±10.24）h,the duration of ventilator assisted ventilation was（50.13±15.81）h and the number of days in hospital was（12.47±5.48）d in the study group,while the time of symptom disappearance was（59.91±11.56）h,the duration of ventilator assisted ventilation was（91.17±25.47）h and the number of days in hospital was（20.11±9.45）d in the control group,which were higher than those in the study group（P<0.05）．After treatment,PaO₂ was （77.89±9.10）mmHg,PaCO₂ was （41.09±8.25）mmHg and oxygenation index was （432.18±37.81）mmHg in the study group,while PaO₂ was （65.28±8.16）mmHg,PaCO₂ was （49.71±8.91）mmHg and oxygenation index was （258.64±56.74）mmHg in the control group．The PaO₂ and oxygenation index of the study group were higher than those of the control group,and the PaCO₂ was lower than that of the control group（P<0.05）．After treatment,TV in the study group was （7.68±2.16）mL/kg,TPEF/TE was （34.19±4.06）%,VPEF/VE was （33.47±3.42）%,and TV in the control group was （6.64±2.01）mL/kg,TPEF/TE was （28.66±3.81）%,VPEF/VE was （28.95±3.10）%．The study group was higher than the control group（P<0.05）．BPD was 11.66% in the study group and 13.33% in the control group．There was no significant difference in the incidence of BPD between the two groups（P>0.05）．The IVH and ROP of the study group were 3.33% and 5.00 respectively,while those of the control group were 8.33% and 11.66% respectively,which were lower in the study group（P<0.05）．The incidence of complications was 6.66% in the study group and 20.00% in the control group,which was lower in the control group（P<0.05）．The total effective rate was 96.66% in the study group and 83.33% in the control group,which was higher in the control group（P<0.05）．Conclusion sEarly intervention of pulmonary surfactant in children with severe respiratory failure caused by respiratory distress syndrome under HFOV mode has a significant effect,improving respiratory function and blood gas indicators,and reducing complications．