目的 研究基于儿童早期预警评分（PEWS）的分级干预模式促进重症肺炎患儿康复进程及对呼吸功能的影响。方法 回顾性分析2021年4月—2023年4月我院收治的100例重症肺炎患儿临床资料。将其按照干预方式的差异分为研究组（n=50）及对照组（n=50）。对照组选用常规干预,研究组则于对照组基础上增加基于PEWS的分级干预。对比两组康复进程（相关指标涵盖症状持续时长及住院天数）、呼吸功能（涵盖通气流速、每分钟最大通气量、肺活量、用力肺活量及深吸气量）、并发症发生情况（涵盖呼吸机相关性肺炎、肺大疱及胸膜炎）、患儿家属满意度。结果 研究组各项症状持续时长及住院天数均短于对照组（均P<0.05）。研究组各项呼吸功能指标水平均高于对照组（均P<0.05）。两组各项并发症发生率对比差异无统计学意义（P>0.05）。研究组患儿家属满意度高于对照组（96.00% vs 82.00%,P<0.05）。结论 基于PEWS的分级干预模式促进重症肺炎患儿康复进程的效果较佳,且能改善呼吸功能,提高患儿家属满意度。

Objective To study the effect of graded intervention mode based on Pediatric Early Warning Score（PEWS）on the recovery process and respiratory function of children with severe pneumonia．Methods The clinical data of 100 children with severe pneumonia treated in our hospital from April 2021 to April 2023 were retrospectively analyzed．Those children were divided into study group（n=50）and control group（n=50）according to the difference of intervention methods．Conventional intervention was used in the two groups,and PEWS-based graded intervention was added to the study group．The two groups were compared with each other in terms of recovery process（including duration of symptoms and length of stay）,respiratory function（including ventilation velocity,maximum volume per minute,vital capacity,forced vital capacity and deep inspiratory capacity）,complications（including ventilators associated pneumonia,bullosa and pleurisy）,and family member satisfaction．Results The duration of symptoms and hospitalization days in the study group were shorter than those in the control group（all P<0.05）．The levels of respiratory function indexes in study group were higher than those in control group（all P<0.05）．There was no significant difference in the incidence of complications between the two groups（P>0.05）．The satisfaction of family member in the study group was higher than that in the control group（96.00% vs 82.00%）（P<0.05）．Conclusions The PEWS based graded intervention model has a good effect on promoting the rehabilitation process of children with severe pneumonia,and can improve respiratory function,and increase the satisfaction of family member of children with severe pneumonia．

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．

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 bronchoalveolar 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 bronchoalveolar 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 探讨软组织重建治疗儿童蟹钳指畸形的临床效果。方法 2019年1月—2022年12月对25例蟹钳指畸形或蟹钳指畸形术后出现“Z”形畸形患儿进行软组织重建治疗,观察术后1年Tada评分、并发症发生情况。结果 术后1年,25例患儿的Tada评分优16例（64%）,良8例（32%）,差1例（4%）。术后1年Peds QL评分（92.74±9.52）高于术前（79.25±7.43）,比较差异有统计学意义（P<0.001）。指间关节伸直障碍、骨折愈合延迟各发生1例,并发症总发生率8%。结论 软组织重建治疗儿童蟹钳指畸形,患儿无需经历一期切除重复拇指,二期行截骨矫形手术或者切除多指的多次手术,只需一次手术就完成蟹钳指截骨矫形,具有治疗周期短、患儿痛苦少、家庭经济成本低,且能显著提升患儿生存质量,临床效果满意等优点。

Objective To investigate the clinical effect of soft tissue reconstruction in the treatment of crab-claw finger deformity in children．Methods From January 2019 to December 2022,soft tissue reconstruction was performed in 25 patients with crab-claw finger deformity or “Z-shaped” deformity after surgery,and Tada score and complications were observed one year after surgery．Results One year after surgery,16 of 25 children had excellent Tada scores（64%）,8 of 25 had good scores（32%）,and 1 had poor score（4%）．The Peds QL score 1 year after operation（92.74±9.52）was significantly higher than that before operation（79.25±7.43）,and the difference was statistically significant（P<0.001）．Dysextension of interphalangeal joint and delayed fracture healing occurred in 1 case,the total complication rate was 8%．Conclusions In the treatment of crab-claw finger deformity and soft tissue reconstruction,children do not need to undergo one-stage resection of the repetitive thumb,second-stage osteotomy and orthopedic surgery or multiple operations to remove extra fingers,and just only one operation is needed to complete the osteotomy and orthopedic surgery of crab-claw finger,which has the advantages of short treatment cycle,less pain for children and low economic cost for families．It significantly improves the quality of life of children and has satisfactory clinical effects．

目的 通过对原位换管与首次置管比较,验证采用原位换管方式的可行性。方法 选取儿童肾内科先后采用了首次置管与原位换管的病例20例。将原位换管作为原位换管组,首次置管作为首次置管组,比较两组操作成功有效率、导管留置天数、最大血流速/体质量[mL/（min·kg）]、操作并发症的差异。结果 两组均一次性穿刺成功,两组在管道留置天数和血流速/体质量[mL/（min·kg）]及并发症比较差异均无统计学意义（P>0.05）。结论 原位换管与首次置管的效果相同,原位换管操作简单、对患者的损伤更小。

目的 比较喀什地区和广州地区健康体检儿童维生素D3水平和缺乏率。方法 纳入2019年1月—2020年12月喀什地区第一人民医院、广州市番禺区中心医院健康体检儿童,比较汉族儿童不同地区间以及比较喀什儿童不同民族间的维生素D3水平和缺乏率,分析了性别、年龄和季节对血清维生素D3水平的影响。结果 喀什汉族儿童维生素D3低于广州汉族儿童,缺乏率更高（均P<0.05）。喀什维族儿童的维生素D3水平低于喀什汉族儿童,缺乏率更高（均P<0.05）。同一地区、同一民族不同年龄段儿童间维生素D3缺乏率和水平比较差异均有统计学意义（均P<0.05）,维生素D3缺乏率随年龄增加而升高,水平则显著下降。同一地区、同一民族儿童不同季节间维生素D3缺乏率和水平比较差异均有统计学意义（均P<0.05）,冬季的缺乏率最高、水平最低。同一地区、同一民族儿童不同性别间维生素D3缺乏率和水平比较差异均无统计学意义（P>0.05）。结论 健康体检儿童血清维生素D3水平,喀什维族低于喀什汉族,喀什汉族低于广州汉族,缺乏率间差异明显。健康体检儿童血清维生素D3水平和缺乏率与年龄、季节有关,与性别无关。

目的 探讨心理因素对儿童功能性腹泻的影响。方法 选取贵州省人民医院儿科2018年1月—2023年1月收治的200例功能性腹泻患儿,依照患儿年龄进行分组,将3~9岁患儿纳入儿童期观察组（n=116）、将10~14岁纳入青少年期观察组（n=84）,另选取同期体检的200名健康儿童志愿者作为对照组,将3~9岁儿童纳入儿童期对照组（n=110）、10~14岁纳入青少年期对照组（n=90）。对所有3~9岁儿童采用幼儿心理健康评定量表（CMHA-80）评价心理健康水平。对所有10~14岁儿童采用青少年版中国心理健康量表（MSSMHS）评价心理健康水平。心理因素与儿童功能性腹泻的相关性采用Spearman相关性分析,采用Logistic回归分析分析儿童功能性腹泻的影响因素。结果 儿童期观察组与对照组儿童人际关系、意志力、认知、注意力相关CMHA-80评分对比差异无统计学意义（P>0.05）,观察组儿童适应性、社会行为、性格、自我意识、情绪情感、其他相关CMHA-80评分明显低于对照组儿童（P<0.05）;青少年期观察组与对照组儿童环境适应、人际交往相关MSSMHS评分对比差异无统计学意义（P>0.05）,青少年期观察组儿童自我认识、情绪体验、认知效能相关MSSMHS评分低于对照组儿童（P<0.05）。儿童期儿童适应性、社会行为、性格、自我意识、情绪情感与功能性腹泻呈负相关（P<0.05）,青少年期自我认识、情绪体验、认知效能与功能性腹泻负正相关（P<0.05）。Logistic回归分析结果表明,性格、情绪情感、其他为儿童期功能性腹泻的影响因素（P<0.05）,情绪体验、认知效能为青少年期功能性腹泻的影响因素（P<0.05）。结论 心理因素对于儿童功能性腹泻具有较大影响。对于儿童期儿童来说,性格、情绪情感、其他不良习惯、抽动、睡眠、饮食等均是引发功能性腹泻的影响因素,对于青少年期来说,情绪体验、认知效能为引功能性腹泻的影响因素。

Objective To explore the influence of psychological factors on functional diarrhea in children．Methods A total of 200 children with functional diarrhea admitted to Pediatric Department of Guizhou Provincial People's Hospital from January 2018 to January 2023 were selected．They were grouped according to their age．Children aged 3-9 were included in the preschool observation group（n=116）,while those aged 10-14 were included in the adolescent observation group（n=84）．Additionally,200 healthy children volunteers who underwent physical examinations during the same period were selected as the control group．Children aged 3-9 were included in the preschool control group（n=110）,and those aged 10-14 were included in the adolescent control group（n=90）．Use the CMHA-80 Preschool Mental Health Assessment Scale to evaluate the level of mental health for all children aged 3-9．Evaluate the mental health level of all children aged 10-14 using the MSSMHS．The correlation between psychological factors and functional diarrhea in children was analyzed using Spearman correlation analysis,and the influencing factors of functional diarrhea in children were analyzed using logistic regression analysis．Results The results showed that there was no statistically significant difference in the CMHA-80 scores of interpersonal relationships,willpower,cognition and attention between the preschool observation group and control group（P>0.05）．The CMHA-80 scores of adaptability,social behavior,personality,self-awareness,emotions and other factors in the observation group in childhood were significantly lower than those in the control group（P<0.05）．There was no statistically significant difference in the MSSMHS scores of environmental adaptation and interpersonal communication between the adolescent observation group and control group（P>0.05）．The MSSMHS scores of self-awareness,emotional experience and cognitive efficacy in the adolescent observation group were lower than those in the adolescent control group（P<0.05）．There was a negative correlation（P<0.05）between adaptability,social behavior,personality,self-awareness,emotions and functional diarrhea in preschool children．Adolescent self-awareness,emotional experience,cognitive efficacy,and functional diarrhea were negatively and positively correlated（P<0.05）．The results of Logistic regression analysis showed that personality,emotions and other factors were the influencing factors of functional diarrhea in preschool childhood（P<0.05）．Emotional experience and cognitive efficacy were influencing factors for adolescent functional diarrhea（P<0.05）．Conclusions Psychological factors have a significant impact on functional diarrhea in children．For preschool children,personality,emotions,other bad habits,tics,sleep,diet are all factors that can cause functional diarrhea．For adolescents,emotional experience and cognitive efficacy are factors that can cause functional diarrhea．

目的 总结儿童嗜酸细胞性胃肠炎（EG）的临床表现、内镜检查和病理学特点、治疗和预后。方法 回顾性分析2019年1月—2022年12月滨州医学院附属医院儿科确诊的48例EG患儿临床资料,包括临床症状、实验室检查、影像学检查、内镜和病理学检查、治疗和随访情况。结果 48例患儿中,男26例（54.17%）,女22例（45.83%）,中位年龄7.8岁,20例（41.67%）患儿有过敏史或家族史,临床症状主要有腹痛（34例,70.83%）、腹泻（18例,37.5%）和腹胀（12例,25%）。外周血嗜酸性粒细胞（EOS）升高36例（75%）,血清总IgE升高14例（29.17%）。48例行胃镜检查,最常见的表现是黏膜充血水肿（32例,66.67%）、点状红斑（28例,58.33%）和糜烂（22例,45.83%）,28例行结肠镜检查,表现为黏膜充血水肿（18例,64.29%）、点状红斑（15例,53.57%）和结节样隆起（12例,42.86%）。黏膜组织病理表现为大量EOS浸润,主要累及十二指肠降部、胃窦和回肠末端。所有患儿均采用饮食干预的治疗,6例（12.5%）单纯饮食干预治疗后好转,16例（33.33%）孟鲁司特钠、酮替芬、奥美拉唑治疗后好转,26例（54.17%）联合泼尼松治疗后好转,随访10个月~3年,8例（16.67%）停药后复发,再次治疗后好转。结论 儿童EG临床症状和内镜表现多样化、缺乏特异性,内镜下黏膜组织病理检查有助于确诊。大多数患儿外周血EOS升高,饮食干预和糖皮质激素治疗效果显著,但存在复发的可能,需长期维持治疗和随访。

Objective To summarize the clinical manifestations,endoscopic and pathological features,treatment and prognosis of eosinophilic gastroenteritis（EG）in children．Methods A retrospective analysis was carried out on clinical data of 48 patients with EG diagnosed at the Department of Pediatrics of Binzhou Medical University Hospital from January 2019 to December 2022,including clinical symptoms,laboratory examination,imaging examination,endoscopic and pathological examination,treatment and follow-up．Results A total of 48 patients were included in the analysis,including 26 males（54.17%）and 22 females（45.83%）,with the median age of 7.8 years（7 months to 13 years）．Twenty patients（41.67%）had a history or family history of allergy．The most clinical symptoms were abdominal pain（34 cases,70.83%）,diarrhea（18 cases,37.5%）and abdominal distension（12 cases,25%）．Peripheral blood eosinophils（EOS）increased in 36 cases（75%）,and the serum total IgE increased in 14 cases（29.17%）．48 cases underwent gastroscopy,the most common manifestations were mucosal hyperemia and edema（32 cases,66.67%）,punctate erythema（28 cases,58.33%）and erosion（22 cases,45.83%）．Twenty-eight cases underwent colonoscopy,the manifestations were mucosal hyperemia and edema（18 cases,64.29%）,spotted erythema（15 cases,53.57%）and nodular eminence（12 cases,42.86%）．Mucosal histopathology showed a large number of EOS infiltration,mainly involving the descending duodenum,gastric antrum and terminal ileum．All children were treated with dietary intervention,6 cases（12.5%）were improved after simple diet intervention,16 cases（33.33%）were improved after treatment with montelukast,ketotifen,omeprazole,26 cases（54.17%）were improved after combined treatment with prednisone acetate．Followed up for 10 months to 3 years,8 cases（16.67%）relapsed after drug withdrawal and improved after retreatment．Conclusions The clinical symptoms and endoscopic manifestations of EG in children are diverse and lack of specificity,endoscopic mucosal histopathological examination is helpful for diagnosis．The EOS in peripheral blood of most children increased,diet intervention and glucocorticoid therapy are effective,but there is a possibility of recurrence,which need long-term maintenance treatment and follow-up．

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¹³¹I治疗儿童及青年格雷夫斯病（GD）的疗效及其影响因素。方法 回顾性分析2013年—2022年在简阳市人民医院核医学科院接受¹³¹I治疗且年龄≤22岁的儿童及青年GD患者的临床资料。采用个体计算剂量法,每克甲状腺组织的计划用量为80~140 μCi,依据甲状腺吸碘率及甲状腺质量,确定¹³¹I的用量。依据¹³¹I治疗后3~6个月的甲状腺功能指标,进行疗效评价,甲状腺功能恢复正常或发生甲减视为治愈。统计分析治愈组与非治愈组间的临床疾病特征参数,评估可能影响疗效的因素。结果 纳入患者71例：男23例、女48例,年龄11~22岁。患儿甲状腺质量4.8~60.0 g,均值22.1 g。¹³¹I的用量在6~24 mCi,均值11.3 mCi。49例（69%）患者获得治愈,22例（31%）未获治愈。单因素分析显示年龄、性别、促甲状腺激素受体抗体的滴度、甲状腺吸碘率、甲状腺质量及¹³¹I用量等,治愈组与非治愈组间比较差异均无统计学意义（均P>0.05）。结论 以每克甲状腺组织80~140 μCi的计划用量,确定¹³¹I用量治疗儿童青年GD的疗效可达69%。

Objective To investigate the effect of ¹³¹I on Graves' disease（GD）in children and young adults and its influencing factors．Methods The clinical data of GD patients aged ≤22 who received ¹³¹I treatment in Nuclear Medicine Department of Jianyang People's Hospital from 2013 to 2022 were retrospectively analyzed．The planned dosage of ¹³¹I was 80~140 μCi per gram of thyroid tissue,and the dosage of ¹³¹I was determined according to the iodine uptake rate and thyroid mass．According to the thyroid function indicators of 3 to 6 months after ¹³¹I treatment,the curative effect was evaluated,and the thyroid function returned to normal or hypothyroidism occurred were considered as cured．The clinical characteristic parameters of the cured group and the non-cured group were analyzed to evaluate the factors that might affect the curative effect．Results Seventy-one patients were included：23 males and 48 females,aged 11-22．The thyroid mass of the children ranged from 4.8 to 60.0 g,with an average of 22.1 g．The dosage of ¹³¹I ranges from 6 to 24 mCi,with an average of 11.3 mCi．Forty-nine patients（69%）were cured and 22（31%）were not cured．Univariate analysis showed that there were no significant differences in age,sex,titer of thyrotropin receptor antibody,thyroid iodine uptake rate,thyroid mass and ¹³¹I dosage between the cured group and the non-cured group（all P>0.05）．Conclusions With the planned dosage of 80~140 μCi per gram of thyroid tissue,the efficacy of ¹³¹I in the treatment of GD in children and young adults can reach 69%．