目的 通过公共数据库筛选急性肺损伤（ALI）及急性呼吸窘迫综合征（ARDS）相关分子标志物,并探索其临床意义。方法 利用基因表达综合数据库（GEO）中有关ALI/ARDS基因表达芯片研究的两个数据集GSE76293和GSE10474,通过STRING网站和Cytoscape软件对差异基因进行蛋白互作网络分析并筛选ALI/ARDS相关关键基因。采用A549细胞构建ALI模型,并通过转录组测序验证关键基因在细胞中的表达差异情况。结果 2个GEO数据集中共筛选出共同上调基因27个,共同下调基因26个。主要参与抗原加工和外源抗原递呈、免疫受体活性调节、内质网膜构成等生物学功能,且与抗原加工、细胞分化等信号通路有关。蛋白互作网络分析共筛选出10个ALI/ARDS相关关键基因,分别为CD4、HLA-DQB1、CD74、HLA-DRA、FCGR2B、TOR1A、RELA、NME8、RNF19B、RHOB。细胞转录组测序结果显示,关键基因的上调或下调特征及表达差异情况与GEO数据集分析结果一致。结论 CD4等关键基因可能参与ALI/ARDS发生、发展的生物学过程,是ALI/ARDS临床诊断及预后预测的潜在个体化分子标志物。

Objective To identify molecular biomarkers associated with acute lung injury（ALI）/ acute respiratory distress syndrome（ARDS）and to explore their clinical significance with public databases. Methods Two datasets GSE76293 and GSE10474 in Gene Expression Omnibus（GEO）database for ALI/ARDS gene expression chip study were used to screen genes with significant differences in both datasets．The protein-protein interaction（PPI）analysis of co-expression genes was performed based on the STRING website and Cytoscape software,and then key genes related to ALI/ARDS were identified with cytoHubba method．The ALI model was constructed using A549 cells cultured in vitro,and the expression differences of key genes in the cells were verified by RNA sequencing. Results A total of 27 up-regulated genes and 26 down-regulated genes were screened in both the two GEO datasets with Venn Diagramm．These co-expression genes were mainly involved in biological functions such as antigen processing and presentation of exogenous peptide antigen,immune receptor activity,integral component of lumenal side of endoplasmic reticulum membrane and were related to signal pathways such as antigen processing and cell differentiation．A total of 10 key genes（CD4,HLA-DQB1,CD74,HLA-DRA,FCGR2B,TOR1A,RELA,NME8,RNF19B,RHOB）related to ALI/ARDS were identified． The results of cell RNA sequencing showed that the up-regulated or down-regulated characteristics and expression differences of key genes were consistent with the results of GEO datasets. Conclusions Several key genes identified in this study may be involved in the biological process of ALI/ARDS development,and may be potential individualized molecular markers for clinical diagnosis and prognosis prediction of ALI/ARDS．

阿尔茨海默病（Alzheimer's disease,AD）是一种复杂的、起病隐秘的、病因不明的、缺乏特异性诊断方式的神经退行性病变。面对与日俱增的患病率,却缺乏有效的治疗方式。中医药治疗方式具有多层次、多靶点、多通路的独特优势,中西医结合方式的互补,非药物疗法的辅助,干细胞疗法、新的分子药物、抗体及蛋白疫苗、γ感官刺激等新颖的实验阶段新疗法等方式治疗AD。本文综述近年来的不同治疗方式治疗AD研究新进展,旨在为临床上治疗AD提供新思路、新方法及参考价值。

Alzheimer's disease is a complex,secrectly onset neurodegenerative disease with unknown etiology,and lacking of specific diagnosis．In the face of the increasing prevalence,there is a lack of effective treatment ways．The treatment of traditional Chinese medicine has the unique advantages of multi-level,multi-target,and multi-channel．With the combination of traditional Chinese and Western medicine and supplement to non-drug therapy,stem cell therapy,new molecular drugs,antibodies and protein vaccines,γ sensory stimulation,and other novel experimental stage new therapies are uesd in the treatment of AD．The article focuses on the new progress of different treatment methods in the treatment of AD in recent years,aiming to provide new ideas,new methods,and reference value for the clinical treatment of Alzheimer's disease．

心血管疾病是导致我国居民死亡的首要原因。在2006—2019年间,我国每年因心血管疾病死亡的人数从215万人增加到328万人。斑马鱼因个体小、成本低廉、体外发育、身体透明、基因组与人类高度同源等特点,近年来被广泛应用于医学研究。斑马鱼模型有利于推动心血管疾病领域的基础性研究。该文通过对前期研究进行综述,重点介绍了斑马鱼模型在心血管疾病中基因筛选、心脏再生、药物筛选、毒性评估等方面的研究进展。

Cardiovascular disease is the leading cause of death in China．Between 2006 and 2019,the annual number of deaths due to cardiovascular diseases increased from 2.15 million to 3.28 million．Zebrafish has been widely used in medical research in recent years because of its small individual size,low cost,in vitro development,transparent body and high homology of genome with human．The zebrafish model is conducive to promoting basic research in the field of cardiovascular disease．Based on the review of previous studies,this paper focuses on the research progress of zebrafish model in gene screening,cardiac regeneration,drug screening,toxicity assessment and other aspects of cardiovascular diseases．

目的 探讨以整合照护理念为基础的综合干预体系对稳定性冠心病患者衰弱的影响。方法 选择2021年8月—2022年6月在驻马店市中医院诊治的老年稳定性冠心病患者78例,根据1∶1随机数字表法分为两组,每组各39例。常规组给予常规护理,整合组在常规组护理的基础上给予以整合照护理念为基础的综合干预体系,记录两组患者的预后情况。结果 两组患者在护理3个月后的平衡测试评分、座椅站立测试评分均低于护理前,整合组护理3个月后的平衡测试评分、座椅站立测试评分与常规组相比也降低（P<0.05）。整合组护理3个月后的躯体、心理、社会、精神等维度的生活质量评分均高于常规组（P<0.05）。整合组随访1年的靶血管重建、心肌梗死、心源性死亡、冠状动脉再狭窄等主要心血管事件不良事件发生率为5.13%,常规组为25.64%,整合组低于常规组（P<0.05）。结论 以整合照护理念为基础的综合干预体系能缓解老年稳定性冠心病患者的衰弱状况,改善患者的生活质量,降低主要心血管事件不良事件发生率。

Objective To explore and analyze the effects of a comprehensive intervention based on integrated care on the frailty of elderly stable coronary heart disease（CHD）patients．Methods From August 2021 to June 2022,78 cases of elderly stable CHD patients who were diagnosed and treated in Zhumadian City Hospital of Traditional Chinese Medicine were selected．According to a 1：1 random number table method,78 patients were divided into the integrated group and the traditional group,with 39 cases of each group．The traditional group was given routine care,while the integrated group was given a comprehensive intervention based on integrated care concepts on the basis of the traditional group's care,and the patients' prognosis was recorded．Results The balance test scores and chair stand test scores of both groups after 3 months of nursing care were lower than those before nursing care．The balance test scores and chair stand test scores of the integrated group after 3 months of nursing care were also significantly lower than those of the traditional group（P<0.05）．After 3 months of nursing care,the quality of life scores in physical,psychological,social,and spiritual dimensions in the integrated group were significantly higher than those in the traditional group（P<0.05）．The incidence of major cardiovascular adverse events such as cardiac death,myocardial infarction,target vessel reconstruction,and coronary artery restenosis during a one-year follow-up in the integrated group was 5.13%,compared to 25.64% in the traditional group．The integrated group was significantly lower than the traditional group（P<0.05）．Conclusions The application of a comprehensive intervention based on integrated care concept in elderly stable CHD patients can alleviate frailty,improve quality of life,and reduce the incidence of major cardiovascular adverse events．

目的 分析老年患者腰-硬联合麻醉术中给予不同剂量瑞马唑仑的有效性及安全性。方法 纳入2020年5月—2023年4月在武穴市第一人民医院手术需进行腰-硬联合麻醉的老年患者126例,随机分为低剂量组[42例,术中持续泵注2 μg/（kg·min）瑞马唑仑]、中剂量组[42例,术中持续泵注3 μg/（kg·min）瑞马唑仑]、高剂量组[42例,术中持续泵注4 μg/（kg·min）瑞马唑仑],评估患者麻醉前（T0）、麻醉给药5 min（T1）、15 min（T2）、30 min（T3）时镇静程度并记录生命体征指标,记录患者麻醉起效时间、阻滞完善时间,统计麻醉给药后恶心呕吐、低血压等不良反应发生情况。结果 三组患者T1、T2、T3时Ramsay评分较T0时均升高（P<0.05）,中剂量组、高剂量组T2、T3时Ramsay评分高于低剂量组（P<0.05）,高剂量组T2、T3时Ramsay评分高于中剂量组（P<0.05）,低剂量、中剂量组T2、T3时平均动脉压、心率高于高剂量组（P<0.05）;高剂量组、中剂量组麻醉起效时间、阻滞完善时间均短于低剂量组（P<0.05）;低剂量组、中剂量组低氧血症、低血压等不良反应总发生率低于高剂量组（P<α,α=0.017）。结论 老年患者腰-硬联合麻醉术中给予3 μg/（kg·min）的瑞马唑仑效果较为理想,其镇痛作用优于2 μg/（kg·min）,对生命体征的影响低于4 μg/（kg·min）,不良反应较少,兼顾镇静作用与麻醉安全性。

Objective To analyze the effectiveness and safety of different doses of remimazolam in elderly patients with combined spinal-epidural anesthesia．Methods From May 2020 to April 2023,126 elderly patients who needed combined spinal-epidural anesthesia in Wuxue First People's Hospital were included and randomly divided into low-dose group[42 cases,continuous infusion of 2 μg/（kg·min）reimazolam during operation],medium-dose group[42 cases,continuous infusion of 3 μg/（kg·min）reimazolam during operation],and high-dose group[42 cases,continuous infusion of 4 μg/（kg·min）reimazolam during operation]．The degree of sedation and vital signs were recorded at 5 minutes（T1）,15 minutes（T2）,and 30 minutes（T3）of administration,and the anesthesia effective time and block completion time were recorded,and the incidence of adverse reactions such as nausea,vomiting,and hypotension after anesthesia administration were recorded．Results The Ramsay scores at T1,T2 and T3 of the three groups were significantly higher than those at T0（P<0.05）．The Ramsay scores of the middle-dose group and high-dose group were significantly higher than those of the low-dose group at T2 and T3（P<0.05）．The Ramsay scores of the high-dose group were significantly higher than those of the middle-dose group at T2 and T3（P<0.05）．The mean arterial pressure and heart rate of the low-dose group and the middle-dose group at T2 and T3 were higher than those of the high-dose group（P<0.05）．The effective time of anesthesia and block completion time in the high-dose group and the middle-dose group were significantly shorter than those in the low-dose group（P<0.05）．The total incidences of adverse reactions such as hypoxemia and hypotension in the low-dose group and the middle-dose group were significantly lower than those in the high-dose group（P<α,α=0.017）．Conclusions The effect of 3 μg/（kg·min）remimazolam in elderly patients with spinal-epidural combined anesthesia is ideal,its analgesic effect is better than 2 μg/（kg·min）,the impact on vital signs is less than 4 μg/（kg·min）,with fewer adverse reactions,which is a balance between the sedative effect and the safety of anesthesia．

目的 观察环泊酚在老年患者无痛胃肠镜检查中的麻醉效果和不良反应。方法 选择80例65岁以上行无痛胃肠镜检查的老年患者,将患者随机分为环泊酚组（C组）40例和丙泊酚组（P组）40例。每例患者均静脉注射舒芬太尼0.08 μg/kg,30 s后C组给予环泊酚0.3 mg/kg、P组给予丙泊酚1.5 mg/kg。记录2组患者麻醉前（T₀）、睫毛反射消失时（T₁）、置入胃镜后即刻（T₂）和操作结束时（T₃）的心率（HR）和平均动脉压（MAP）;记录2组患者检查操作时间、清醒时间、追加药物次数及静脉注射痛、呼吸抑制、呛咳、体动等不良反应发生情况。结果 2组患者行胃肠镜检查操作时间、麻醉清醒时间和追加药物次数比较差异无统计学意义（P>0.05）。与T₀时间点（102.6±14.1 mmHg）比较,P组患者的MAP在T₁（86.0±12.5 mmHg）、T₂（86.1±13.2 mmHg）、T₃（92.8±12.6 mmHg）时间点明显下降,差异有统计学意义（P<0.05）;与C组T₁（95.9±10.8 mmHg）、T₂（96.3±9.6 mmHg）时间点比较,P组的MAP在T₁（86.0±12.5 mmHg）、T₂（86.1±13.2 mmHg）时均明显降低（P<0.05）。C组患者静脉注射痛、呼吸抑制的发生率明显低于P组（P<0.05）;2组体动和呛咳的发生率比较差异无统计学意义（P>0.05）。结论 环泊酚0.3 mg/kg在老年患者胃肠镜检查中能提供和丙泊酚1.5 mg/kg相似的麻醉效果,环泊酚组的老年患者发生注射痛、血压下降、呼吸抑制的比例更低。

Objective To observe the effect of ciprofol and propofol in painless gastroenteroscopy in elderly patients．Methods A total of 80 elderly patients aged 65 or above who underwent painless gastroenteroscopy were randomly divided into a group of 40 patients receiving ciprofol（Group C）and a group of 40 patients receiving propofol（Group P）．All patients were given sufentanil 0.08 μg/kg,and group C was given ciprofol 0.3 mg/kg,group P was given propofol 1.5 mg/kg after 30 seconds．The heart rate（HR）and mean arterial pressure（MAP）of two groups of patients before anesthesia（T₀）,at the disappearance of eyelash reflex（T₁）,after gastroscopy insertion（T₂）,and at the end of the procedure（T₃）were recorded．The operating time,anesthesia awakening time,number of additional medications and the adverse reactions such as injection pain,respiratory depression,cough,body movements were also recorded．Results There were no significant differences（P>0.05）in the gastroenteroscopy operating time,recovery time and number of additional medications between the two groups．Compared with T₀ time point（102.6±14.1 mmHg）,the MAP of group P patients significantly decreased at T₁（86.0±12.5 mmHg）,T₂（86.1±13.2 mmHg）and T₃（92.8±12.6 mmHg）time points（P<0.05）．Compared with Group C at T₁（95.9±10.8 mmHg）,T₂（96.3±9.6 mmHg）time points,the MAP of Group P decreased significantly at T₁（86.0±12.5 mmHg）and T₂（86.1±13.2 mmHg）time points（P<0.05）．The incidences of injection pain and respiratory depression in group C were significantly lower than those in group P（P<0.05）．There was no statistically significant difference in the incidences of body movements and cough between the two groups（P>0.05）．Conclusions Ciprofol 0.3 mg/kg combined with sufentanil can provide anesthesia effect similar to that of propofol 1.5 mg/kg combined with sufentanil in gastroenteroscopy of elderly patients．The proportions of injection pain,blood pressure decreasing and respiratory depression in elderly patients in the ciprofol group were lower．

目的 探讨选择输尿管软镜下钬激光碎石术治疗肾结石（直径≤3 cm）的效果。方法 回顾性选择2021年1月—2023年1月广州市增城区新塘医院接收的180例肾结石（直径≤3 cm）患者为研究对象,按照手术方式分为对照组（n=90,给予经皮肾镜碎石术治疗）与观察组（n=90,给予输尿管软镜下钬激光碎石术治疗）,比较两组的结石清除效果、并发症、手术治疗情况、炎症反应、肾功能指标。结果 观察组结石清除89例、清除率98.89%,与对照组85例、清除率94.44%比较差异无统计学意义（χ²=2.758,P=0.096）;观察组发生并发症1例、发生率1.11%,比对照组8例、发生率8.89%更低（χ²=5.731,P=0.016）。与对照组（58.45±10.62）min、（32.26±4.49）mL、（10.42±2.27）g/L、（4.25±0.86）min比较,观察组手术操作时长（70.05±15.24）min更高,术中失血量（10.22±2.28）mL更少、术后血红蛋白（Hb）下降值（3.94±1.05）g/L更低,视觉模拟评分法（VAS）（2.22±0.42）分更低（t分别为5.924、41.521、24.579、20.121,P<0.05）。术后两组白细胞计数（WBC）、C-反应蛋白（CRP）、肿瘤坏死因子-α（TNF-α）、降钙素原（PCT）明显升高,而观察组（7.62±1.15）×10⁹/L、（14.25±2.24）mg/L、（1.65±0.34）mg/mL、（17.22±1.45）ng/ml明显低于对照组（8.82±1.41）×10⁹/L、（22.26±3.63）mg/L、（2.56±0.44）mg/mL、（20.64±2.87）ng/mL（t分别为6.256、17.814、15.525,10.090,P<0.05）。术后两组各指标明显升高,血肌酐（Scr）、胱抑素-C（Cys-C）、血尿素氮（BUN）组间比较差异无统计学意义（P>0.05）;而观察组、中性粒细胞明胶酶相关脂质运载蛋白（NGAL）（4.95±0.84）μg/L明显低于对照组（6.45±1.15）μg/L（t=9.992,P<0.05）。结论 输尿管软镜引导下置入钬激光进行碎石可有效治疗直径≤3 cm肾结石,取得与经皮肾镜相当的疗效,可进一步减轻疼痛,减少出血,控制炎症反应,避免肾功能损伤,安全性更高。

目的 探讨免疫球蛋白（Ig）与超敏C-反应蛋白（hs-CRP）联合在幼儿手足口病病情中的应用价值。方法 选取2021年1月—2023年4月广州市妇女儿童医疗中心接受诊治的160例手足口病患儿作为观察组,依据其病情严重程度将其分为普通型98例、重症型62例;并选取同期健康体检儿童160名作为对照组。于观察组入组时、对照组体检时采集静脉血,对所有受试者进行IgG、IgA、IgM与hs-CRP检测,对比观察组、对照组和轻症型、重症型的指标水平,分析上述指标诊断效能。结果 观察组hs-CRP、IgM高于对照组,IgG、IgA低于对照组（P<0.05）;轻症型hs-CRP、IgM均低于重症型患儿,IgG、IgA均高于重症型患儿（P<0.05）;ROC曲线分析,hs-CRP、IgG、IgA、IgM联合对幼儿手足口病的诊断敏感性最高,为87.50%,AUC=0.952（0.922~0.973）,约登指数为0.769。结论 免疫球蛋白联合hs-CRP能够明显提高幼儿手足口病的诊断敏感性,可作为评价患儿病情严重程度的参考指标检测。

目的 探究纤维桩联合复合树脂及氧化锆烤瓷冠修复治疗根管治疗（RCT）后后牙楔状缺损（WSD）的效果。方法 选取2019年8月—2022年8月在新乡市口腔医院治疗的300例（300牙）RCT后后牙WSD患者,按随机数字表法分成A组（n=150）、B组（n=150）。A组接受纤维桩联合复合树脂及氧化锆烤瓷冠修复治疗,B组接受金属烤瓷冠（PFM）联合金属桩核（MPC）修复治疗。对比2组修复成功率、修复效果、修复前后牙周健康指标[牙龈指数（GI）、菌斑指数（PLI）、牙周探诊深度（PD）]、龈沟液炎性因子[白细胞介素-6（IL-6）、白细胞介素-10（IL-10）、肿瘤坏死因子-α（TNF-α）]水平。结果 A组修复成功率为97.33%（146/150）,高于B组的87.33%（131/150）（P<0.05）;A组边缘密合性、表面质地、颜色匹配均优于B组（P<0.05）;修复6个月后A组GI、PLI、PD较B组低（P<0.05）;修复1个月后A组龈沟液TNF-α、IL-6水平较B组低,IL-10水平较B组高（P<0.05）。结论 与PFM联合MPC修复治疗RCT后后牙WSD患者相比,应用纤维桩联合复合树脂及氧化锆烤瓷冠修复治疗更有助于提升修复成功率及修复效果,改善牙周健康,且对组织产生创伤更小。

Objective To investigate the restorations outcome of fibre post + composite resin + zirconia porcelain crown for patients with wedge-shaped defects（WSD）in posterior teeth after root canal therapy（RCT）．Methods A total of 300 patients（300 teeth）with posterior WSD after RCT in our hospital（from August 2019 to August 2022）were selected and divided into group A（n=150）and group B（n=150）according to random number table method．Group A received composite resin + zirconia porcelain crown + fiber post repair treatment,while group B received porcelain fused to metal（PFM）+ metal post core（MPC）repair treatment．The success rate of repair,the effect of repair,the periodontal health indicators before and after repair[gingival index（GI）,plaque index（PLI）,periodontal probing depth（PD）],and the levels of gingival creval fluid inflammatory factors[interleukin-6（IL-6）,IL-10,tumor necrosis factor-α（TNF-α）] were compared between the two groups．Results The success rate of repair in group A was 97.33%（146/150）,higher than 87.33%（131/150）of group B（P<0.05）．The edge tightness,surface texture and color matching of group A were better than those of group B（P<0.05）．After 6 months of repair,GI,PLI and PD in group A were lower than those in group B（P<0.05）．After one month of repair,the contents of TNF-α and IL-6 in gingival crevicular fluid of group A were lower than those of group B,and the contents of IL-10 were higher than those of group B（P<0.05）．Conclusions Compared with PFM+MPC in the treatment of posterior WSD patients after RCT,the application of composite resin + zirconia porcelain crown + fiber post repair is more helpful to improve the success rate and effect of repair,improve periodontal health,and cause less tissue trauma．

目的 分析早期活动康复对机械通气患儿肌力的影响,探讨影响肌力的相关因素。方法 采取回顾性研究,选择2021年4月—2023年4月医院收治的104例机械通气患儿临床资料,根据康复方法分为两组,其中采取常规康复训练的52例患儿为对照组,采取早期活动康复的52例患儿为观察组。两组均连续干预至出院,比较两组患儿的机械通气、住ICU、总住院时间、不同时点（转出ICU时、出院时、出院1个月）的肌力及Barthel日常生活能力（Barthel）评分;参照《中国重症肌无力诊断和治疗指南（2015年简版）》中诊断标准,评估机械通气患儿获得性肌无力（AW）发生情况。统计并比较两组基线资料,采用二元Logistic回归分析机械通气患儿AW发生的影响因素。结果 观察组的机械通气、住ICU及总住院时间[（7.28±2.47）d、（15.27±3.64）d、（27.08±5.68）d]均短于对照组[（10.64±3.39）d、（17.74±3.55）d、（32.57±6.14）d]（P<0.05）;与转出ICU时、出院时相比,两组出院1个月时英国医学研究委员会（MRC）肌力评定法评分升高,且观察组转出ICU时、出院时MRC评分[（53.57±5.13）分、（56.84±2.16）分]均高于对照组[（50.13±4.57）分、（53.67±2.42）分],两组组间·时点交互比较差异有统计学意义（P<0.05）;与转出ICU时、出院时相比,两组出院1个月时Barthel评分升高,且观察组转出ICU时、出院时Barthel评分[（65.03±12.47）分、（90.58±7.59）分]均高于对照组[（55.25±11.12）分、（84.13±9.62）分],两组组间·时点交互比较差异有统计学意义（P<0.05）;住院期间104例机械通气患儿发生AW 31例,发生率29.81%,AW组机械通气时间、营养风险筛查量表2002（NRS）评分[（11.84±4.19）d、（3.07±1.04）分]高于非AW组[（8.18±2.26）d、（1.61±0.75）分],且有创机械通气模式、使用罗库溴铵患儿[77.42%（24/31）、32.26%（10/31）]占比均高于非AW组[53.42%（39/73）、13.70%（10/73）]（P<0.05）;二元Logistic回归分析结果显示,机械通气时间长、有创机械通气模式、使用罗库溴铵、NRS评分高是机械通气患儿AW发生的危险因素（OR>1,P<0.05）。结论 早期活动康复能够有效缩短机械通气患儿患儿通气时间及住院时间,改善肌力,提高生活自理能力,同时机械通气时间、创机械通气模式、使用罗库溴铵、NRS评分与机械通气患儿肌力下降有关。

Objective To analyze the effect of early mobilization and rehabilitation on muscle strength in children with mechanical ventilation and to explore the risk factors affecting muscle strength．Methods A retrospective study was conducted on 104 children with mechanical ventilation admitted to the hospital from April 2021 to April 2023．According to the rehabilitation methods,they were divided into two groups．The clinical data of children with routine rehabilitation training were included in the control group（52 cases）,and the clinical data of children with early mobilization and rehabilitation were included in the observation group（52 cases）．Both groups were continuously intervened until discharged．The mechanical ventilation time,ICU stay and total hospital stay were compared between the two groups．Muscle strength and self-care ability at different time points（transfer out of ICU,discharge,1 month after discharge）,the incidence of acquired weakness（AW）in children with mechanical ventilation were evaluated according to the diagnostic criteria in the Chinese Guidelines for the Diagnosis and Treatment of Myasthenia Gravis． Baseline data was collected and compared between the two groups．Binary logistic regression was used to analyze the risk factors of AW in children with mechanical ventilation．Results The mechanical ventilation time,ICU and total hospitalization time in the observation group[（7.28±2.47）d,（15.27±3.64）d,（27.08±5.68）d] were shorter than those in the control group[（10.64±3.39）d,（17.74±3.55）d,（32.57±6.14）d]（P<0.05）．Compared with those at the time of transfer out of ICU and discharge,the Medical Research Council（MRC）scores of the two groups increased at 1 month after discharge,and the MRC scores of the observation group at the time of transfer out of ICU and discharge[（53.57±5.13）,（56.84±2.16）] were higher than those of the control group[（50.13±4.57）,（53.67±2.42）]．There were significant differences between the two groups,time points and between groups · time points（P<0.05）．Compared with those at the time of transferring out of ICU and at discharge,the Barthel scores of the two groups increased at 1 month after discharge,and the Barthel scores of the observation group at the time of transferring out of ICU and at discharge[（65.03±12.47）,（90.58±7.59）] were higher than those of the control group[（55.25±11.12）,（84.13±9.62）]．There were significant differences in Barthel scores between the two groups,time points and groups · time points（P<0.05）．AW occurred in 31 of 104 children with mechanical ventilation during hospitalization,with an incidence of 29.81%．The mechanical ventilation time and Nutritional Risk Screening（NRS）score in the AW group[（11.84±4.19）d,（3.07±1.04）] were higher than those in the non-AW group[（8.18±2.26）d,（1.61±0.75）]．The proportion of children with invasive mechanical ventilation mode and the use of rocuronium[77.42%（24/31）,32.26%（10/31）] were higher than those in the non-AW group[53.42%（39/73）,13.70%（10/73）]（P<0.05）．Binary logistic regression analysis showed that long mechanical ventilation time,invasive mechanical ventilation,use of rocuronium and high NRS score were risk factors for AW in children with mechanical ventilation（OR>1,P<0.05）．Conclusions Early mobilization and rehabilitation can effectively shorten the ventilation time and hospitalization time of patients with mechanical ventilation,improve muscle strength and improve the ability of self-reliance．At the same time,mechanical ventilation time,mechanical ventilation mode,use of rocuronium and NRS score are related to the decrease of muscle strength in children with mechanical ventilation．