目的 探讨无创血流动力学监测(non-invasive cardiac output monitoring,NICOM)在儿童脓毒性休克早期液体复苏的临床应用评价。方法 选取2019年1月—2020年6月期间在我院PICU患儿诊断为儿童脓毒性休克61例,随机分为对照组(未接受NICOM监测29例)和干预组(接受NICOM监测32例),记录液体复苏后6、12、24小时血气分析(pH值、剩余碱、乳酸)、尿量以及病死率、NICOM监测(CO、CI、SVR、SV、SVRI、HR、MAP)等结果。结果 液体复苏6 小时后两组HR、MAP、乳酸、剩余碱、尿量比较无统计学差异 (P>0.05),液体复苏12 h后干预组乳酸较对照组降低,差异有统计学意义(P<0.05);液体复苏24 h后两组HR、MAP、乳酸、剩余碱及尿量比较,差异均有统计学意义 (P<0.05)。干预组治疗后12 h在CO、CI、SVR、SV、SVRI、HR、MAP较治疗前改善,差异均有统计学意义(P<0.05),干预组治疗后24 h在CO、CI、SVR、SV、SVRI、HR、MAP较治疗前改善,差异均有统计学意义(P<0.05)。结论 NICOM具有敏感度及准确率高,且操作简单,可有效用于指导脓毒性休克早期液体复苏,针对个体化治疗提供客观依据,正确指导容量管理,具有科学实用价值,值得推广。

Objective To evaluate the clinical application of non-invasive cardiac output monitoring (NICOM) for early fluid resuscitation in children with septic shock. Methods 61 children diagnosed with septic shock in the PICU at our hospital between January 2019 and June 2020 were randomly divided into a control group (29 without NICOM monitoring) and an intervention group (32 with NICOM monitoring), and the results of blood gas analysis (pH,lactate and residual base), urine volume, and mortality, and NICOM monitoring (CO, CI, SVR, SVRI, HR, and MAP) were recorded at 6, 12, and 24 h after fluid resuscitation. Results There was no statistically significant difference in HR, MAP, lactic acid, residual base and urine volume between the two groups after 6 h of fluid resuscitation (P>0.05), and lactic acid was lower in the intervention group than that in the control group after 12 h of fluid resuscitation (P<0.05); the differences in HR, MAP, lactic acid, residual base and urine volume between the two groups after 24 h of fluid resuscitation were all statistically significant (P<0.05). The differences were statistically significant (P<0.05) in CO, CI, SVR, SVI, HR, and MAP at 12 h and at 24 h after treatment in the intervention group compared with that of the pre-treatment (P<0.05). Conclusion NICOM has high sensitivity and accuracy and it can be operated in simple processes. It may be effectively applied to guide the early fluid resuscitation of septic shock. It also provides Objective evidence for individualized treatment and correctly guides volume management. Its scientific and practical value makes it worth promoting.

目的 对喀什地区和广州地区过敏性疾病儿童血清过敏原特异性IgE进行检测并比较检测结果。方法 选择喀什地区第一人民医院(喀什地区)和广东省妇幼保健院、广州市番禺区中心医院(广州地区)过敏性疾病儿童,血清标本采用国产欧博克试剂盒(酶联免疫法)检测过敏原特异性IgE。结果 两地区过敏性疾病儿童的过敏原IgE总阳性率均随年龄增长逐渐升高。广州地区过敏性疾病儿童对牛奶的IgE阳性率随年龄增长逐渐降低,对屋尘螨/粉尘螨则逐渐升高,组间比较均有统计学意义差异(P均<0.05)。喀什地区过敏性疾病儿童对花生/榛子/开心果、葎草/艾蒿/豚草、猫/狗毛皮屑的血清IgE阳性率明显高于广州地区,而对牛奶、屋尘螨/粉尘螨的血清IgE阳性率明显低于广州地区(P均<0.05)。结论 喀什地区和广州地区过敏性疾病儿童过敏原特异性IgE结果存在显著差异,过敏性疾病需要做好不同地区过敏原的监测。

目的 分析重症流感相关性脑病患儿的临床特点及诊治要点。方法 回顾性分析2017年5月—2020年4月收入我院PICU的17例重症流感相关性脑病患儿的临床资料进行回顾性分析。结果 17例患儿中男性10例、女性7例,起病年龄3(2～5)岁。所有患儿均出现发热,1(0～3.5)天后出现神经系统症状,包括惊厥发作(88%)和昏迷(88%)。头颅影像学检查病变主要分布在丘脑、脑干、髓质脑室周围白质,呈对称性和多灶性改变。经颅多普勒检查出现脑血流速度减慢呈震荡波、钉子波的5例患儿均死亡。16例患儿予机械通气,2例予连续性肾替代治疗,死亡8例,存活者出院前均遗留不同程度神经系统损害。结论 儿童重症流感相关性脑病以发热、惊厥和昏迷为主要表现,头颅影像学及脑电图、经颅多普勒等检查有助于早期诊断和预后判断,早期联合应用甲强龙冲击及IVIG的有效性仍需进一步研究。

Objective To analyze the characteristics, diagnosis and treatment of severe influenza-associated encephalopathy in children. Methods The clinical data of 17 children with severe influenza-associated encephalopathy admitted to PICU from May 2017 to April 2020 were retrospectively analyzed. Results Among the 17 cases, 10 were male and 7 were female, and the onset age was 3 (2-5) years old. All children developed fever, and neurological symptoms 1 (0-3.5) days later, including seizures (88%) and coma (88%). The lesions were mainly distributed in the thalamus, brainstem and medullary ventricular white matter, showing symmetry and multifocal changes. All the 5 cases with slowed cerebral blood flow velocity and presented shock wave or nail wave died. 16 children were on mechanical ventilation, 2 with continuous renal replacement therapy, and 8 died. All the survivors had varying degrees of neurological damage before discharge. Conclusion Severe influenza-associated encephalopathy of childhood is mainly characterized by fever, convulsions and coma. Cranial imaging, EEG, TCD and other examinations are helpful for early diagnosis and prognosis judgment. The effectiveness of early combined application of methylprednisolone and IVIG still needs further study.

目的 探讨不同年龄儿童性早熟的影响因素及预防措施。方法 本文将2020年1月—2021年1月的性早熟儿童45例(观察组)与正常健康儿童45例(对照组)作为研究对象,通过问卷调查的形式了解所选儿童的家庭因素、饮食、生活方式与社会因素等方面的情况,通过单因素分析与多因素分析探讨相关影响因素。结果 观察组不同年龄段儿童在骨龄、身高、体质量、BMI方面存在统计学差异,P＜0.05;观察组性激素水平明显高于对照组,P＜0.05。结论 儿童性早熟的发生与生活习惯、家庭关系、饮食习惯、母亲初潮年龄等因素有关,帮助其养成科学合理的生活习惯与饮食习惯,改善家庭关系可很好的降低并预防儿童性早熟的发生。对于已经出现性早熟现象的儿童来说,学校与家庭要及时给予其合理的健康教育,包括心理方面与生殖健康方面,及时有效的疏导可有效避免性早熟对儿童心理方面造成不良影响。

Objective To explore the influencing factors and preventive measures of precocious puberty in children of different ages. Methods 45 cases of precocious puberty children (observation group) and 45 cases of normal healthy children (control group) from January 2020 to January 2021 were selected as the research objects. The family factors, diets, lifestyles and social factors of the selected children were investigated by questionnaire survey, and the related influencing factors were discussed by single factor analysis and multi factor analysis. Results There were statistical differences in bone age, height, weight and BMI among children of different ages in the observation group, P<0.05. The levels of sex hormones in the observation group were higher than those in the control group, P<0.05. Conclusion The occurrence of children's precocious puberty is related to living habits, family relations, eating habits, mother's menarche ages and other factors. To help them develop scientific and reasonable living habits and dietary habits and improve family relations can reduce and prevent the occurrence of children's precocious puberty. For children with precocious puberty, schools and families should give them proper health education in time, including psychological and reproductive health. Timely and effective counseling can effectively avoid the adverse effects of precocious puberty on children's psychology.

目的 儿童流感相关坏死性脑病(influenza-associated necrotizing encephalopathy,IANE)是一种严重的流感并发症,目前缺乏早期诊断预警指标,本文探讨血生化和脑脊液检测在儿童IANE早期预警中的作用,为IANE早期诊断提供预测参考。 方法 回顾分析2016年1月—2020年12月在我院接受诊治的确诊流感并发神经系统并发症的患儿。40例流感相关性脑病(influenza-associated encephalopathy,IAE)和32例IANE患儿纳入研究。采用受试者工作特征曲线(ROC)分析来确定所选变量的预警价值。 结果 与IAE组相比,IANE组丙氨酸转氨酶(ALT)、天冬氨酸转氨酶(AST)、肌酐激酶(CK)、乳酸脱氢酶(LDH)、脑脊液乳酸脱氢酶(CSF LDH)、脑脊液蛋白(CSF PRO)均升高,两组差别有统计学意义(P<0.05)。用于区分IAE和IANE的LDH、CSF LDH和CSF PRO的曲线下面积(AUC)分别为0.876、0.853和0.831。LDH>535 U/L预测IANE的敏感度为89.7%,特异度为86.5%。CSF LDH>67 U/L预测IANE的敏感度为82.8%,特异度为73.3%。CSF PRO>0.49 g/L预测IANE的敏感度为73.7%,特异度为76.6%。IANE患儿死亡10例(43.3%),IAE患儿死亡0例(P<0.05)。 结论 IANE组LDH、CSF LDH和CSF PRO明显升高,可作为IANE的早期预警指标。对此类患儿要密切评估,早期预测及干预,减少后遗症及病死率,改善预后。

Objective Influenza-associated necrotizing encephalopathy (IANE) in children is a serious complication of influenza. At present, there is a lack of indicators for early diagnosis and early warning. In this paper, the role of blood biochemical and cerebrospinal fluid detection in early warning of IANE in children is discussed, so as to provide a predictive reference for early diagnosis of IANE. Methods A retrospective analysis was conducted on children diagnosed with influenza and with neurological complications who were treated in our hospital from January 2016 to December 2020. Forty children with influenza-associated encephalopathy (IAE) and 32 children with IANE were included. Receiver operating characteristic curve (ROC) analysis was used to determine the predictive value of the selected variables. Results Compared with IAE group, the levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), creatinine kinase (CK), lactate dehydrogenase (LDH), cerebrospinal fluid lactate dehydrogenase (CSF LDH) and cerebrospinal fluid protein (CSF PRO) were all increased in IANE group, and the differences between the two groups were statistically significant (P<0.05). The area under curve (AUC) of LDH, CSF LDH and CSF PRO used to distinguish IAE from IANE were 0.876, 0.853 and 0.831, respectively. The sensitivity and specificity of LDH>535 U/L for predicting IANE were 89.7% and 86.5% respectively. The sensitivity and specificity of CSF LDH>67 U/L for predicting IANE were 82.8% and 73.3% respectively. The sensitivity and specificity of CSF PRO＞0.49 g/L in predicting IANE were 73.7% and 76.6%. There were 10 deaths of IANE (43.3%) and 0 death of IAE (P<0.05). Conclusion The levels of LDH, CSF LDH and CSF PRO were significantly increased in IANE group, which could be used as early warning indicators for IANE. For such children, close evaluation, early prediction and intervention should be made to reduce sequelae and fatality rate and to improve prognosis.

目的 探讨儿童贫血与血红蛋白等因素的相关性。方法 选取2017年7月——2019年5月于天津市河东区6月龄至5岁以下的儿童作为研究对象参与血红蛋白的检测,剔除重复值及缺失值后,共纳入453例儿童,根据儿童血红蛋白水平将儿童分为贫血组及健康组,对儿童家属进行相关问卷调查,通过Logistic回归分析探讨儿童贫血的影响因素。结果 该社区453例儿童中贫血儿童116例,贫血检出率为25.61%,Hb含量为(125.34±13.75)g/L。贫血组及健康组儿童月龄、主要照顾者、照顾者对喂养知识的知晓率、出生6个月后的喂养方式及添加辅食年龄比较差异具有统计学意义(P＜0.05)。多因素分析结果显示:6~＜12个月、照顾者对喂养知识的知晓＜60%、出生6个月后混合喂养、4~6个月添加辅食均为影响儿童发生贫血的危险因素(OR=2.78、3.82、3.90、3.50)。结论 天津市河东区儿童的贫血情况较为严重,政府相关机构应制定相关的营养改善政策,加大有关儿童正确喂养知识的宣传,同时,医疗机构应对贫血儿童做好相应的健康检查,完善父母的公共卫生教育工作。

目的 分析河源市学龄前儿童发生小细胞低色素性贫血的病因。方法 对我院进行健康体检小细胞低色素性贫血儿童287例进行血常规、血清铁蛋白及地中海贫血基因检测。结果 在所研究的287 例小细胞低色素性贫血儿童病例中,分别检出 α地中海贫血 127例,β地中海贫血 48例,α/β复合地中海贫血2例;铁缺乏 83例 (合并地中海贫血20例, 缺铁性贫血45例),不明原因贫血47例。地中海贫血检出率为61.67%,铁缺乏检出率为21.95% 。结论 地中海贫血是河源市学龄前儿童发生小细胞低色素性贫血最主要的原因,其次是铁缺乏,各年龄段儿童以轻度贫血为主,6月~1岁,1~3岁为铁缺乏高发年龄。α地中海贫血基因型以--^SEA/αα最常见,β地中海贫血以βIVS-II-654/β^N最常见,小细胞低色素症在静止型最常见。

Objective To analyze the causes of microcytic hypochromic anemia in preschool children in Heyuan City. Methods A total of 287 cases with microcytic hypochromic anemia were selected in our hospital. The indexes of hematology, serum ferritin were detected and genetic testing for thalassemia was performed. Results Through genetic analysis, 127 of 287 cases of microcytic hypochromic anemia were confirmed with α-thalassaemia,48 cases with β-thalassaemia,2 cases with compound α/β-thalassaemia and 83 cases with iron deficiency (20 thalassemia cases and 45 iron deficiency anemia cases). Thalassaemia detection rate was 61.67%, iron deficiency detection rate was 21.95%. Conclusion Thalassaemia was the main reason of microcytic hypochromic anemia in preschool children in Heyuan City, followed by iron deficiency. The mild anemia was the main type among all age groups, children aged 0.5-3 had higher iron deficiency rate. The main type of α-thalassaemia was --^SEA/αα, the main type of β-thalassaemia was βIVS-II-654/β^N and the main type of microcytic hypochromic was static type.

目的 对3例儿童Rotor综合征的临床特点及SLCO1B1和SLCO1B3基因突变分析,提高儿科医生对Rotor综合征的认识。方法 收集广州市妇女儿童医疗中心2018年—2019年确诊的3例Rotor综合征患儿的临床资料,对患儿及其家系成员肝脏常见遗传代谢性疾病二代测序筛查并家系验证结果进行分析。结果 患儿主要临床表现为反复或持续巩膜和(或)皮肤轻度黄染,实验室检查提示高直接胆红素血症。二代测序发现3例患儿均为SLCO1B1基因c.1738C＞T纯合突变和SLCO1B3基因5号内含子区域大片段插入纯合突变。SLCO1B1基因和SLCO1B3基因2处纯合突变均进行了家系验证。文献报道的SLCO1B1基因c.1738C＞T突变是无义突变,可以造成蛋白功能缺失;SLCO1B3基因的大片段插入突变虽暂未有文献收录或报道,但大片段的插入突变可引起移码突变而造成编码蛋白功能丧失。结论 由于基因检测技术的不断进步,Rotor综合征不断被儿科医生所认识。SLCO1B1和SLCO1B3双基因纯合或复合杂合突变是3例Rotor综合征患儿的分子遗传基础。

Objective To better understand Rotor syndrome(RS)in children,the clinical features and SLCO1B1 and SLC01B3 gene mutations were analyzed. Methods The clinical data of the 3 pediatric cases diagnosed in Guangzhou Women and Children's Medical Center between 2018 and 2019 was collected. Genomic DNA was extracted from the children and their family members, and subjected for second-generation sequencing to screen the known genes for liver genetic metabolic diseases. Then the detected mutations were confirmed by Sanger sequencing analysis. Results The main clinical manifestations were recurrent or persistent mild yellowish sclera and/or skin. Laboratory examinations showed hyperbilirubinemia with direct bilirubin elevating. Second generation sequencing showed that all 3 children were c.1738c＞Thomozygous mutations of SLCO1B1 gene and homozygous mutations of large fragment insertion in SLCO1B3 gene intron 5. Two homozygous mutations in SLCO1B1 gene and SLCO1B3 gene were verified in families.SLCO1B1 gene c.1738C＞T mutation,a nonsense mutation reported in references,could lead to protein function loss.A large insertion mutation of SLCO1B3 gene could cause frame-shift mutation which might lead to protein function loss even though it was neither reported in the references nor recorded in SNP database. Conclusion Due to the progress in the clinical application of gene detection technology, RS has been recognized gradually by pediatricians. Homozygous mutations or compound heterozygous mutations simultaneously occurred in SLCO1B1 and SLCO1B3 gene were the molecular genetics base in these cases of RS.

目的 回顾分析2017—2018年汕头中心医院50例腹泻儿童鼠伤寒沙门菌的标本信息及药敏结果, 得出汕头地区这两年鼠伤寒沙门菌感染特性及指导临床合理用药。方法 从腹泻儿童粪便标本中分离沙门氏菌, 采用纸片扩散法检测其对抗菌药物的敏感性, 采用血清学凝集试验沙门氏菌血清型, 记录鉴定为鼠伤寒沙门菌的标本数据进行分析。结果 50例腹泻儿童鼠伤寒沙门氏菌中,易感时间多为夏秋季节;0～1岁为易感人群;感染后多出现发热、腹泻症状,可出现血便症状,较少出现呕吐;鼠伤寒沙门菌对亚胺培南、替加环素、厄他培南有100%的敏感率,对呱啦西林/他唑巴坦、头孢呱酮/舒巴坦有96%和92.68%的敏感率,队阿莫西林/克拉维酸有80.48%的敏感率,对阿米卡星、头孢呋辛酯、头孢呋辛、头孢西丁都为100%耐药,对其他抗生素有不同程度的敏感性及耐药性。结论 在夏秋季节,0～1岁儿童应加强对鼠伤寒沙门菌感染的预防,若出现发热、腹泻症状需及时就医,医生需向鼠伤寒沙门菌的方向考虑治疗,鼠伤寒沙门菌对多抗生素产生耐药性,临床上需根据药敏结果合理使用抗生素。

Objective To retrospectively analyze information and drug susceptibility of 50 cases of Salmonella typhimurium isolated from children with diarrhea in Shantou Central Hospital from 2017 to 2018, and to obtain the characteristics of Salmonella typhimurium infection in Shantou area in the past two years and to guide rational drug use in clinic. Methods Salmonella was isolated from fecal specimens of children with diarrhea. The susceptibility of Salmonella to antimicrobial agents was detected by disk diffusion method. Serological agglutination test was used to determine the serotype of salmonella. Sample data identified as Salmonella typhimurium were recorded and analyzed. Results Among the 50 children with diarrhea, the susceptibility time of Salmonella typhimurium was summer and autumn; the age of 0～1 was susceptible population; fever and diarrhea were common after infection, and hematochezia and vomiting were rare; Salmonella typhimurium had 100% susceptibility to imipenem, tegacycline and ertapenem, 96% and 92.68% to guacillin/tazobactam, cefotaxone/sulbactam. The sensitivity rate of amoxicillin/clavulanic acid was 80.48%. It was 100% resistant to amikacin, cefuroxime axetil, cefuroxime and cefoxitin. It had different sensitivity and resistance to other antibiotics. Conclusion In summer and autumn, children aged 0～1 should strengthen prevention of Salmonella typhimurium infection. If symptoms of fever and diarrhea occur, doctors should consider the direction of Salmonella typhimurium treatment. Salmonella typhimurium is resistant to multi-antibiotics, and rational use of antibiotics in clinic should be based on the results of drug sensitivity.

目的 了解从化地区儿童人冠状病毒((human coronavirus,HCoV)流行情况和临床特点,观察人冠状病毒分型OC43(HCoV-OC43)基因分布特点,探讨从化地区小儿呼吸道感染HCoV-OC43分离株与国内的HCoV-OC43分离株的同源性与基因分型,探讨HCoV-OC43与小儿呼吸道感染疾病的关系,为预防和控制呼吸道疾病提供依据。方法 本研究从化地区2017年1月—2019年6月门诊就诊的6个月~14岁的儿童610例,采集鼻咽拭子标本,病毒检测阳性的患者,这些标本取自患有急性上呼吸道感染或下呼吸道感染疾病的患者,表现出呼吸道感染的症状,例如发热(体温> 37.5℃)、咽痛、流涕、鼻塞、咳嗽和咳痰等。采用荧光定量PCR方法,对HCoV-OC43病毒核酸进行分析和测序。采用直接免疫荧光法检测其他7种常见呼吸道病毒;包括:流感病毒 A、B型(influenza virus,IVA、B)、副流感病毒Ⅰ、Ⅱ、Ⅲ 型 (parainfluenza virus, PIVⅠ、Ⅱ和Ⅲ)、呼吸道合胞病毒(respiratory syncytial virus, RSV)、腺病毒(ad enovirus, ADV)共七种常见呼吸道病毒进行检测,通过HCoV-OC43和常见呼吸道病毒的病毒监测,找出从化地区呼吸道感染患儿HCoV-OC43的N蛋白编码基因的特征。结果 从化地区6月~14岁的呼吸道感染儿童610例,采集鼻咽拭子标本,病毒检测阳性的患者,分析了8种呼吸道病毒,重点分析HCoV-OC43的临床特点。从发病时间月份分布可以看出,人HCoV-OC43主要是在春季流行, HCoV-OC43全年均可检出,春季4月份和5月份检出率较高,冬季较低,但不同月份的检出率无差异。各种常见病毒的发病率,流感病毒A(IVA)111例(18.20%)、流感病毒B(IVB)61例(10.00%)、副流感病毒Ⅰ(PIVⅠ)42例(6.89%)、副流感病毒Ⅱ(PIVⅡ)34例(5.57%)、副流感病毒Ⅲ(PIVⅢ)77例(12.62%)、呼吸道合胞病毒(RSV)135例(22.14%)、腺病毒(ADV) 82例(13.45%),冠状病毒(HCoV-OC43)68例(11.14%)。呼吸道感染多为流感病毒(A+B)和副流感病毒(Ⅰ,Ⅱ,Ⅲ)共325例(53.28%),其次是合胞病毒感染135例(22.14%),腺病毒(ADV) 82例(13.45%),冠状病毒感染最低68例(11.14%)。建立荧光定量PCR方法检测HCoV-OC43 病毒分离及基因分型测序,阳性PCR 产物测序,与HCoV-OC43中N 蛋白基因序列进行比较分析,该地区冠状病毒具有临床多样性,与国内已发表的菌株HCoV-OC43相比具有很高的同源性。结论 人冠状病毒OC43的检出率与以前的报道相符,未发现新的传染性冠状病毒,冠状病毒HCoV-OC43的流行趋势稳定,所有呼吸道感染者均表现出正常的呼吸道感染症状。常见呼吸道病毒检测, 对临床早期诊断和合理用药具有重要意义。