目的   探讨支气管镜灌洗用于儿童重症肺部感染合并肺实变的治疗效果及对CT特征、肺功能的影响。方法   选取2022年5月—2024年5月铜仁市人民医院收治的100例重症肺部感染合并肺实变患儿开展前瞻性研究，应用随机数表法分为对照组和观察组，每组各50例。对照组患儿采取常规治疗，观察组则采取常规治疗加支气管镜灌洗治疗。对比其临床疗效，治疗前后炎症因子、CT特征及肺功能变化。结果   观察组治疗总有效率高于对照组（P＜0.05）；治疗后观察组患儿白细胞计数（10.36±2.52）×10⁹ /L、白细胞介素-6（20.57±5.05）ng/L、C反应蛋白（13.12±2.64）mg/L、降钙素原（101.62±12.16）pg/L均低于对照组白细胞计数（13.25±3.32）×10⁹ /L、白细胞介素-6（31.69±4.11）ng/L、C反应蛋白（16.16±4.44）mg/L、降钙素原（113.46±18.11）pg/L（P＜0.05）；治疗后两组患儿胸腔积液、支气管壁增厚、空气支气管征、肺部实变、磨玻璃影等相关CT影像特征占比下降，且观察组低于对照组（P＜0.05）；治疗后两组患儿呼气流量峰值水平均升高，观察组（90.67±18.45）L/s高于对照组（81.27±17.69）L/s，用力肺活量水平均更高，观察组（3.33±0.68）L高于对照组（2.68±0.25）L（P＜0.05）。结论   针对儿童重症肺部感染合并肺实变，在常规治疗基础上增加支气管镜灌洗可提升临床疗效，减轻机体炎症反应，改善胸部CT各种表现及肺功能。

        Objective  To explore the therapeutic effects of bronchoalveolar lavage in children with  severe pulmonary infection complicated by lung consolidation and its impact on CT features and pulmonary function．Methods A prospective study was conducted on 100 children with severe pulmonary infection complicated with pulmonary consolidation in a hospital from May 2022 to May 2024．They were randomly divided into observation group and control group using a random number table method，50 cases in each group．The control group of children received routine treatment，and the observation group received conventional treatment plus bronchoalvelar lavage．Clinical efficacy，inflammatory factors，CT features，and alterations in pulmonary function before and after therapy were compared．Results  The total effective rate of the observation group was higher than that of the control group（P＜0.05）．After treatment，the white blood cell count（10.36±2.52）×10⁹ /L，interleukin-6（20.57±5.05）ng/L，C-reactive protein（13.12±2.64）mg/L，and procalcitonin（101.62±12.16）pg/L in the observation group were all lower than those in the control group（13.25±3.32）×10⁹ /L，interleukin-6（31.69±4.11）ng/L，C-reactive protein（16.16±4.44）mg/L，and procalcitonin（113.46±18.11）pg/L（P＜0.05）．After treatment，the proportion of CT imaging features such as pleural effusion，bronchial wall thickening，air bronchogram sign，lung consolidation，ground glass opacities，decreased in both groups of children，and the observation group was lower than the control group（P＜0.05）．After treatment，the peak levels of expiratory flow in both groups of children increased，with the observation group（90.67±18.45）L/s higher than the control group（81.27±17.69）L/s．The forced vital capacity levels were also higher，with the observation group（3.33±0.68）L higher than the control group（2.68±0.25）L（P＜0.05）．Conclusions  Adding bronchoalvelar lavage to routine treatment for children with severe pulmonary infection complicated with pulmonary consolidation can improve their clinical efficacy，alleviate inflammatory reactions，and improve various chest CT manifestations and lung function．

      目的   回顾分析高原地区儿童阑尾炎术后早期炎性肠梗阻的临床特征，总结治疗经验。方法   回顾分析青海省妇女儿童医院2019—2023年收治的49例儿童阑尾炎术后早期炎性肠梗阻病例资料。结果   纳入研究的49例患儿，阑尾炎发病时间3～8 d，平均（5.38±1.25）d，术后出现肠梗阻时间3~11 d，平均时间（4.81±1.70）d，其中48例经过保守治疗后梗阻解除，恢复排气、排便，肠功能恢复时间4~13 d，平均（5.93±2.49）d，1例经积极保守治疗后病情进展，最终经手术治愈。49例患儿均顺利治愈出院，住院时间10～26 d，平均（15.69±3.79）d。术后随访1～2年，患儿饮食、排便均无异常。结论   高原地区儿童阑尾炎术后早期粘连性肠梗阻预防是关键，采取保守治疗同样可获得较高的治愈率，若保守治疗无效或病情进展应及时积极采取手术治疗。

       Objective  To review the clinical characteristics of early postoperative inflammatory small bowel obstruction（EPISBO） in children with appendicitis in plateau area and summarize the treatment experience．Methods  The data of 49 cases of appendicitis EPISBO in children admitted to Qinghai Women and Children’s Hospital from 2019 to 2023 were  retrospectively analyzed．Results  The onset time of appendicitis was 3-8 days，with an average of（5.38±1.25）days，and the time of intestinal obstruction was 3-11 days after surgery，with an average of（4.81±1.70）days．After conservative treatment，48 cases were relieved of obstruction，resumed exhaust and defecation，and intestinal function recovered in 4-13 day，average（5.93±2.49）d，1 case had progression after conservative treatment，and was cured by surgery．All the 49 children were successfully cured and discharged．The length of hospital stay was 10-26 days，with an average of（15.69±3.79）days．Postoperative follow-up of 1 to 2 years showed normal eating and bowel movements．Conclusions  The prevention of EPISBO in children with appendicitis in plateau area is the key．Conservative treatment can also achieve a higher cure rate．If conservative treatment is ineffective or the disease progresses，timely surgical treatment should be provided．

        目的   探究支气管镜联合雾化吸入药物对肺炎支原体肺炎患儿症状持续时间及肺部影像学好转情况。方法   选取94例肺炎支原体肺炎患儿为研究对象，以随机数字表法分为A组、B组，各47例，分别实施布地奈德雾化吸入治疗、支气管镜肺泡灌洗联合布地奈德雾化吸入治疗，比较两组症状持续时间、治疗后肺部影像改善情况、炎症指标水平及不良反应发生率。结果  B组体温恢复时间（2.73±0.51）d、咳嗽消失时间（5.98±1.24）d、住院时间（10.96±3.36）d，A组分别为（3.14±0.83）（7.06±2.33）（13.27±3.18）d，B组较A组短（t=2.885、2.809、3.423，均P＜0.05）；治疗后B组40.43%阴影完全消失、34.04%阴影显著缩小、23.40%阴影有所缩小、2.13%阴影改善不明显，A组分别为21.28%、36.17%、25.53%、17.02%，B组肺部阴影改善情况优于A组（Z=8.311，P＜0.05）；治疗前B组白细胞计数（WBC）、超敏C-反应蛋白（hs-CRP）、降钙素原（PCT）水平与A组相近（P＞0.05）；治疗后B组WBC（7.71±1.94）×109 /L、hs-CRP（4.96±1.44）mg/L、PCT（84.32±21.40）pg/mL，A组分别为（9.05±2.48）×109 /L、（6.17±1.85）mg/L、（105.46±34.02）pg/mL，B组水平较A组低（t=2.918、3.538、3.606，均P＜0.05）；B组不良反应发生率为8.52%，A组为4.26%，B与A组相近（χ ² =0.178，P＞0.05）。结论   对肺炎支原体肺炎患儿实施支气管镜联合雾化吸入药物治疗，可缩短康复时间，促进肺部阴影消退，降低其炎症指标水平，且未增加不良反应发生率。

     Objective  To investigate the effect of bronchoscopy combined with nebulized inhalation of medication on the duration of symptoms and pulmonary imaging conversion in children with Mycoplasma pneumoniae pneumonia（MPP）．Methods  A total of 94 children with MPP were selected as the research subjects and randomly divided into Group A and Group B using a random number table，with 47 cases in each group．They were treated with budesonide nebulization inhalation therapy and bronchoalveolar lavage combined with budesonide nebulization inhalation therapy，respectively．The duration of symptoms，improvement of lung imaging before and after treatment，levels of inflammatory indicators，and incidence of adverse  reactions were compared between the two groups．The results showed that the temperature recovery time was（2.73±0.51）days，cough disappearance time was（5.98±1.24）days，and hospitalization time was（10.96±3.36）days in Group B，（3.14±0.83）days，（7.06±2.33）days，and（13.27±3.18）days in Group A，respectively．Durpation in Group B was shorter than Group A（t=2.885，2.809，3.423，all P＜0.05）． After treatment，40.43% of the shadows in Group B completely disappeared，34.04% of the shadows significantly reduced，23.40% of the shadows reduced，and 2.13% of the shadows showed no significant improvement，better than 21.28%，36.17%，25.53%，and 17.02% in Group A（Z=8.311，P＜0.05）． Before treatment，the white blood cell count（WBC），high-sensitivity C-reactive protein（hs CRP），and procalcitonin（PCT）levels in group B were similar to those in Group A（P＞0.05）．After treatment，the WBC（7.71±1.94）×109 /L，hs CRP（4.96±1.44）mg/L，and PCT（84.32±21.40）pg/mL in Group B were lower than those in Group A（9.05±2.48）×109 /L，（6.17±1.85）mg/L，and（105.46±34.02）pg/mL，respectively（t=2.918，3.538，3.606，all P＜0.05）．The incidence of adverse reactions in Group B was 8.52%，while in Group A it was 4.26%．The incidence of adverse reactions in group B was similar to that in group A（χ ² =0.178，P＞0.05）．Conclusions  Bronchoscopy combined with nebulized inhalation therapy for children with MPP can shorten the recovery time，promote the disappearance of lung shadows，reduce their inflammatory index levels，and without increasing the incidence of adverse reactions．

       目的   探讨眼底豹纹斑密度（FTD）及视盘旁萎缩弧（PPA）与眼轴长（AL）的相关性，为眼底定量化在儿童近视防控的应用提供科学依据。方法   本研究随机抽取广州市荔湾区两所小学三年级学生作为研究对象，在校园视力筛查的过程中同时采集AL、CR和眼底彩照。使用AI软件对眼底彩照进行量化分析，量化指标包括不同区域和范围的FTD及PPA面积大小，根据眼轴长度分为三组：A组（AL＜23 mm）；B组（23 mm≤AL＜24 mm）；C组（24 mm≤AL）。结果   共有398例右眼被纳入统计分析，年龄范围8~11岁，中位数是9岁，男性人数占55.1％。三组组间AL、AL/CR和SE比较均有统计学差异（P＜0.05）。A组与B组相比，FTD在后极部整体范围、黄斑中心3 mm区域、黄斑中心3 mm区域上方区域具有统计学差异（P＜0.05），C组与B组相比，PPA面积及FTD在后极部整体范围、视盘为中心4.5 mm范围、黄斑为中心直径3 mm和6 mm范围均具有统计学差异（P＜0.05），Spearman相关性分析表明，AL与PPA（r=0.443）和FTD（r=0.322）呈正相关（P＜0.001）。亚组相关性分析表明，A组仅黄斑为中心直径3 mm上方范围FTD与AL呈正相关（P=0.028），B组PPA、黄斑中心直径3 mm及其上方范围FTD与AL呈正相关（P＜0.05），C组仅PPA与AL呈正相关（P=0.005）。结论 眼底定量对于儿童近视防控具有潜在价值，PPA和FTD与AL呈正相关性，不同区域和范围FTD与AL相关性具有一定差异性，黄斑中心直径3 mm范围及其上方范围与眼轴相关性最强。FTD在短眼轴阶段就可以作为生物标记物预测近视严重程度，而PPA主要在长眼轴阶段体现生物标记物的作用。

       Objective  To investigate the correlation between fundus tessellated density（FTD）and peripapillary atrophy（PPA）with axial length（AL）, providing a scientific basis for the application of fundus quantification in the prevention and control of myopia in children. Methods  This study randomly selected third-grade students from two primary schools in Liwan District, Guangzhou City, as research subjects. Axial length（AL）, corneal radius（CR）, and fundus color photographs were collected simultaneously during the school vision screening process. AI software was utilized to perform quantitative analysis on the fundus color photographs, with quantification indicators including the area size of PPA and FTD in different regions and ranges. Subjects were divided into three groups based on axial length：Group A（AL＜23 mm）; Group B（23 mm≤AL＜24 mm）; Group C（AL≥24 mm）. Results  A total of 398 right eyes were included in the statistical analysis, with an age range of 8 to 11, a median age of 9, and 55.1% were male. There were significant statistical differences in AL, AL/CR, and spherical equivalent（SE）among the three groups（P＜0.05）. Compared with Group B, Group A showed significant statistical differences in FTD in the overall posterior pole, the 3 mm diameter area centered on the fovea, and the superior area of the 3 mm foveal center（P＜0.05）. Compared with Group B, Group C showed significant differences in PPA area and FTD in the overall posterior pole, the 4.5 mm diameter area centered on the optic disc, and the 3 mm and 6 mm diameter areas centered on the fovea（P＜0.05）. Spearman correlation analysis indicated that AL was significantly positively correlated with PPA（r=0.443）and FTD（r=0.322）（P＜0.001）. Subgroup correlation analysis showed that in Group A, only the FTD in the superior area of the 3 mm diameter centered on the fovea was significantly positively correlated with AL（P=0.028）. In Group B, PPA and FTD in the 3 mm diameter and superior area centered on the fovea were significantly positively correlated with AL（P＜0.05）. In Group C, only PPA was significantly positively correlated with AL（P=0.005）. Conclusions  Fundus quantification holds potential value for the prevention and control of myopia in children. PPA and FTD show significant positive correlations with AL, with varying degrees of correlation in different regions and ranges of FTD with AL. The 3 mm diameter area centered on the fovea and its superior area have the strongest correlation with the eye axis. FTD can serve as a biomarker to predict the severity of myopia in the early stages of eye axis elongation, while PPA primarily manifests as a biomarker in the later stages of elongation.