目的 探讨哮喘患者的气道炎症表型分布及肺功能指标情况。方法 选择226 例哮喘患者为研究对象,其中50 例为重症哮喘,76 例为普通哮喘,对比哮喘患者的气道炎症表型分布情况及患者肺功能指标情况。结果 226 例哮喘患者中,嗜酸性粒细胞型最为常见,占36.73%,之后为中性粒细胞型（31.86%）、混合细胞型（22.12%）、寡细胞型（9.29%）;重度哮喘患者中,中性粒细胞型患者肺功能相关指标均低于其它类型的重症患者（P<0.05）。结论 在哮喘气道炎症表型中,最常见的表型为嗜酸性粒细胞型,其中中性粒细胞型的哮喘患者的肺功能最差。

Objective To explore the phenotype distribution and lung function indicators of airway inflammation in asthmatic patients. Methods 226 cases of asthma patients were chosen as the research objects,in which 50 cases of severe asthma,76 cases of asthma,to compare asthma airway inflammation phenotype distribution and lung function index. Results Among 226 asthma patients,eosinophilic granulocytes were the most common,accounting for 36.73%,followed by neutrophilic granulocytes （31.86%）,mixed cell types （22.12%） and oligocytes （9.29%）. Among patients with severe asthma, the lung function of neutrophil patients was lower than that of other severe patients（P < 0.05）. Conclusion Among asthmatic airway inflammatory phenotypes, the most common phenotype is eosinophilic granulocyte type, among which neutrophil asthmatic patients have the worst lung function.

目的 探讨红细胞分布宽度(RDW)与稳定性冠心病的冠脉病变严重程度的关系,评价RDW对稳定性冠心病的预测价值。方法 收集我院2016年11月—2018年11月期间因胸痛住院的患者330例,根据冠脉造影确诊稳定性冠心病组200例,除外冠心病130例为对照组。比较2组RDW水平的差异,分析RDW与冠脉病变严重程度(Gensini评分)的相关性及稳定性冠心病的独立危险因素。结果 稳定性冠心病组RDW水平高于对照组(P<0.05),稳定性冠心病组RDW与 Gensini评分之间存在正相关(r=0.217,P=0.002);多因素logistic回归分析显示RDW(OR=2.950,95%CI: 1.986~4.381,P<0.001)是稳定性冠心病的独立危险因子。结论 RDW与稳定性冠心病的冠脉病变严重程度呈正相关,RDW是稳定性冠心病的独立危险因素,为稳定性冠心病的诊断提供一定预测价值。

Objective To investigate the relationship between the distribution width of red blood cells (RDW) and the severity of coronary artery disease in stable coronary artery disease(SCAD), and to evaluate the predictive value of RDW for SCAD. Methods Patients who were hospitalized for chest pain from November 2016 to November 2018 were enrolled (n=330). According to coronary angiography,200 patients were divided into SCAD group (n=200),except for the SCAD group, the remaining 130 cases were the control group(n=130). The differences of RDW levels between the two groups were compared, and the correlation between RDW and severity of coronary artery disease (Gensini score) and independent risk factors for SCAD were analyzed. Results The RDW level in the SCAD group was higher than that in the control group (P<0.05). There was a positive correlation between the RDW and Gensini scores in the SCAD group (r=0.217,P=0.002). Multivariate logistic regression analysis showed RDW (OR=2.950, 95% CI: 1.986~4.381, P<0.001) is an independent risk factor for SCAD. Conclusion RDW is positively correlated with the severity of coronary artery disease in SCAD. RDW is independent risk factor of SCAD and provides predictive value for the diagnosis of SCAD.

目的 了解我院肺炎链球菌的临床分布及耐药情况,为临床合理应用抗菌药物提供依据。方法 采用WHONET 5.6软件对我院2012年—2016年培养、分离和鉴定出的肺炎链球菌的临床分布及药敏试验结果进行分析。结果 2012年—2016年共检出肺炎链球菌519株(不含重复菌株),每年秋冬和初春季节检出率最高。五年检出的肺炎链球菌对各类抗生素的耐药率变化不大。从8个科室和病区分离出此菌,以呼吸科为主,分离出313株,占60.3%。痰液中共分离出488株,占94.03%,其次从血液中分离出32株,占4.24%。对抗生素耐药率大于60%的有:复方新诺明、四环素、克林霉素和红霉素;未出现耐药的抗生素有厄他培南、莫西沙星、利奈唑胺和万古霉素;其余抗生素的耐药率均小于30%,其中肺炎链球菌对青霉素的耐药率为2%、中介率为20%。结论 青霉素仍可以作为治疗肺炎链球菌感染的首先药物;三代头孢菌素可用于青霉素非敏感的肺炎链球菌(PNSSP)治疗;未发现万古霉素非敏感菌株;红霉素、克林霉素的耐药率极高,不适合肺炎链球菌的治疗。临床应当根据培养药敏结果合理使用抗菌药物,减少细菌耐药率的发生。

目的 探讨载脂蛋白E基因多态性在COPD患者合并AD中的意义。方法 通过病例资料进行回顾性研究,收集慢性阻塞性肺疾病70例,阿尔茨海默病81例,健康对照人群566例,进行统计分析。结果 “AD组”和“COPD合并AD组”的LDL水平高于“COPD未合并AD组”;“COPD组”的ApoE水平高于“AD组”,且在“COPD组”中,未合并AD者的ApoE水平明显高于合并AD者;“COPD组”的ε3/ε4基因型均少于“AD组”,且“COPD未合并AD组”的ε3/ε4基因型明显少于“COPD合并AD组”;“AD组”及“COPD合并AD组”的ε4等位基因频率多于“COPD组”及“COPD未合并AD组”;“COPD合并AD组”的ε3/ε3基因型少于“健康对照组”,而ε2/ε4基因型则多于“健康对照组”;“COPD组”的ε3/ε4基因型多于“健康体检组”;“COPD合并AD组”的ε3/ε4基因型多于“健康体检组”;“COPD合并AD组”的ε4等位基因频率高于“健康对照组”。结论 ApoE基因多态性不但参与COPD患者认知功能受损甚至合并AD,而且可能通过影响脂质代谢,参与COPD的发生发展;ApoE的ε4等位基因可能是COPD和AD患病的共同危险因素。

目的 了解广东地区糖尿病足患者创面病原菌分布及耐药性变迁。方法 回顾性分析A组(2010年1月—2014年12月就诊的糖尿病足患者)和B组(2015年1月—2018年1月就诊的糖尿病足患者)研究者创面病原菌分布及耐药性变迁。结果 B组中创面G⁺菌及G^-菌均有下降趋势且G^-菌下降较快,细菌种类明显增加,真菌及混合感染明显上升,A组以金黄色葡萄球菌、铜绿假单胞菌、大肠埃希菌感染为主;B组以金黄色葡萄球菌、奇异变形杆菌、铜绿假单胞菌及真菌感染为主;B组相对于A组的细菌耐药性增加。结论 近年来糖尿病足患者病原菌种类明显增加且混合感染及真菌感染上升,且其耐药性增加,因此早期经验用药而后根据药敏选择抗菌药物治疗是糖尿病足感染治疗的关键。

Objective To investigate the distribution and drug resistance of pathogenic bacteria in diabetic foot wounds in Guangdong area. Methods Patients with diagnosis of diabetic foot between group A (from Jan 2010~Dec 2014 ) and group B (from Jan 2015 to Jan 2018) were retrospectively analyzed. We studied the bacteria distribution and drug resistance of pathogenic changes of group A and group B. Results In group B, both G+ and G- bacteria had a decreased trend while G- bacteria decreased rapidly, but the species of bacteria increased obviously just as fungi and mixed infection increased obviously. Bacteria infection in group A were mainly about Staphylococcus aureus, Pseudomonas aeruginosa, Escherichia coli wihle group B were Staphylococcus aureus, Proteus mirabilis, Aeruginosa and Fungal infection; the resistance of group B to A was lower. Conclusion In recent years, kinds of pathogenic bacteria of diabetic foot were significantly increased and the mixed infection and increased fungal infection as well as its drug resistance increased, so the early experience of medication choice of antibiotics based on drug sensitivity and treatment are the key to the treatment of diabetic foot infection.

目的 了解中山市儿童社区获得性肺炎病原学特点及其与年龄、抗生素使用的相关性,为疾病诊断和抗生素合理使用提供参考依据。方法 对中山市妇幼保健院儿科住院部2016年1月—2016年4月收治的小儿社区获得性肺炎临床资料、入院前使用抗生素和病原学检测结果进行回顾性分析。结果 共有155例研究对象纳入研究,细菌检出95株,其中革兰氏阴性菌61株,革兰氏阳性菌34株。流感嗜血杆菌,金黄色葡萄球菌,肺炎链球菌,大肠埃希氏菌,副流感嗜血杆菌的占构成比前五位。支原体和衣原体现症感染率约7.7%～8.4%。RSV检出率达25.8%。年龄在3 a以上、入院前使用过抗生素者,革兰阳性菌检出率较低(P<0.05)。入院前使用过抗生素者,革兰阴性菌检出率较高,且使用4 d及以上者高于使用3 d及以下者(P<0.05)。结论 住院儿童CAP的治疗,应综合考虑病人的年龄、入院前的抗生素使用情况,结合当地CAP 的可能优势病原选择合适的治疗方案。

Objective To explore the etiological characteristics and factors of community-acquired pneumonia(CAP) in children in Zhongshan for providing reference for the diagnosis and rational use of antibiotics for CAP. Methods Retrospective analysis were applied on clinical data and etiology results of CAP in children admitted to the pediatric inpatient department of Maternal and Child Health Hospital in Zhongshan from January to April, 2016. Results 155 children were enrolled. The number of bacteria detected was 95, including 61 Gram-negative bacteria, 34 Gram-positive bacteria. Haemophilus influenzae, Staphylococcus aureus, Streptococcus pneumoniae, Escherichia coli, Haemophilus parainfluenzae accounted the top five. The recent infection rate of Mycoplasma and Chlamydia were from 7.7% to 8.4%. RSV detection rate was 25.8%.The Children who were over 3 years old, pre-use of antibiotics, associated with lower detection rate of Gram-positive bacteria (P<0.05). The Children who were the pre-use of antibiotics, associated with higher detection rate of Gram-negative bacteria, and the use of four days and more higher than three days or less(P<0.05). Conclusion For the treatment of CAP in children, the patient's age and pre-use history of antibiotics should be considered, combined with local common type of disease pathogens, to select the appropriate treatment.

目的 探讨红细胞分布宽度(RDW)与老年重症社区获得性肺炎(CAP)患者病情严重程度及预后的相关性。方法 将103例老年重症CAP患者按照近期预后分为存活组(n=83例)及死亡组(n=20例),按照RDW的水平分为RDW≥14.5%组(n=83例)和RDW＜14.5%组(n=20例);记录患者的一般临床资料及相关实验室检查指标,比较各组之间的差异,并利用Logistic回归模型分析老年重症CAP患者近期死亡的危险因素。结果 死亡组中的患者入院APACHEⅡ评分、CRP、PCT、RDW水平均高于存活组,差异有统计学意义(P＜0.05)。RDW 异常率随着PSI 级别的增高而增高,RDW 异常率分别为PSIⅠ-Ⅱ级7.32%(3/41、 PSI Ⅲ级16.67%(6/36)、PSI Ⅳ级39.13%(9/23)、PSIⅤ级 66.67%(2/3),差异有统计学意义(P＜0.05)。Spearsman相关性分析显示:RDW与APACHEⅡ评分、CRP、PCT、PSI评分呈正相关(r_s分别为=0.353,0.363,0.432,0.362,P均＜0.05)。多因素Logistic回归分析显示: RDW(OR=2.024,P＜0.05)是老年重症CAP患者近期死亡的独立危险因素。结论 RDW水平随着老年重症CAP患者病情严重程度的增加而增加,RDW增高亦是患者近期死亡的高危因素。

目的 分析我院2011—2015年我院儿科住院患者下呼吸道病原菌分布及其耐药性。方法 采用全自动生化鉴定仪对痰标本分离株进行鉴定,用全自动微生物药敏系统和纸片扩散法对病原菌的耐药性进行检测,并用头孢硝噻吩纸片法对β-内酰胺酶进行检测。结果 2011—2015年共分离得到下呼吸道病原菌518株,包括肺炎链球菌(21.62%)、金黄色葡萄球菌(16.99%)、流感嗜血杆菌(14.48%)、肺炎克雷伯菌(11.97%)、大肠埃希菌(8.11%)、卡他莫拉菌(5.41%)、鲍曼不动杆菌(3.86%)和铜绿假单胞菌(3.86%)等。药敏结果显示,肺炎链球菌对克林霉素(90.18%)、红霉素(92.86%)和复方新诺明(87.50%)的耐药率较高,金黄色葡萄球菌则对青霉素G(90.91%)和红霉素(68.18%)有较强耐药性,未发现对万古霉素或利奈唑胺耐药的革兰阳性球菌。流感嗜血杆菌对氨苄西林耐药率为32%,与其β-内酰胺酶阳性率较一致,肺炎克雷伯菌和大肠埃希菌对头孢类药物(17.33%~45.33%)和喹诺酮类药物(34.67%~50.67%)耐药性较高,并发现1株碳青霉烯耐药的肺炎克雷伯菌。结论 本院下呼吸道感染病原菌谱较广,主要包括多种革兰阳性球菌和革兰阴性杆菌,并对多种抗菌药物表现出较强耐药性,临床应注重合理应用相关抗生素,严格防控病原菌的医院感染及传播。

Objective To analyze the antimicrobial resistance and the profile of pathogens from lower respiratory tract infections in pediatric in patients. Methods Sputum bacterial isolates were identified by an automated biochemical identification system. Antimicrobial resistance was detected by an automated drug susceptibility detection system and the disc diffusion method. The β-lactamases was tested by the nitrocefin disc detection method. Results Five hundred and eighteen bacterial pathogens were isolated from sputum samples during 2011-2015, including streptococcus pneumoniae(21.62%), staphylococcus aureus(16.99%), haemophillus influenzae(14.48%), klebsiella pneumoniae(11.97%), escherichia coli(8.11%), moraxelle catarrhalis(3.8%), acinetobacter baumanii(3.86%) and pseudomonas aeruginosa(3.86%). High resistant rates were detected for S. pneumoniae to clindamycin(90.18%), erythromycin(92.86%) and sulfamethoxazole (85.50%), while S. aureus was highly resistant to penicillin G(90.91%) and erythromycin(68.18%). Resistance to vancomycin and linezolid was not detected for gram positive cocci. The resistant rate to ampicillin was 32% for H. influenzae, which was in concordance with the production of β-lactamases. Relatively high resistance was detected for K. pneumoniae and E. coli to cephalosporins and quinolones. A carbapenem-resistant K. pneumoniae isolate was also detected. Conclusion Multiple bacterial species were isolated from lower respiratory tract infections in our hospital, including different species of gram positive cocci and gram negative bacilli, and these isolates exhibited high resistance to antibiotics tested. The clinical use of antibiotics and hospital infection and transmission of these pathogens should be controlled.

目的 了解中山市7家医院金黄色葡萄球菌感染的临床分布,并对耐药基因进行检测,为临床经验治疗金黄色葡萄球菌感染提供用药及分子生物学依据。方法 收集2015年1月—2015年6月中山市7家医院分离到的金黄色葡萄球菌,使用ATB半自动细菌鉴定及药敏分析仪(法国梅里埃)对分离到的菌株进行鉴定及药敏试验,使用PCR技术对耐甲氧西林金黄色葡萄球菌(MRSA)的耐药基因进行检测。结果 7家医院共分离到89株金黄色葡萄球菌,其中MRSA检出33株,检出率为37.1%。金黄色葡萄球菌主要来源于呼吸内科(32株,36.0%)、骨科(20株,22.5%),主要分离自痰(41株,46.1%),伤口分泌物(16株,18%),对万古霉素、替考拉宁、奎奴普丁/达福普丁、复方新诺明、左氧氟沙星、诺氟沙星具有较高敏感性,MRSA对常用抗菌药物耐药率高于甲氧西林敏感金黄色葡萄球菌。共有32株MRSA检出bla_mecA基因,检出率为97%。结论 MRSA耐药情况较为严峻,临床科室应根据微生物培养报告合理使用抗菌药物。bla_mecA基因在MRSA检出较高,是MRSA主要的耐药机制。

Objective To analyze clinical distribution of Staphylococcus aureus infections from 7 hospitals in Zhongshan city, as well as to provide basis of empirical treatment and molecular biology for Staphylococcus aureus infections. Methods Staphylococcus aureus were collected from January 2015 to June 2015 in Zhongshan city, and then the strains were identified and tested antibiotic susceptibility by using ATB semiautomatic analyzer(Merieux). Resistance gene of methicillin-resistant Staphylococcus aureus(MRSA) was detected by polymerase chain reaction. Results 89 strains of Staphylococcus aureus were isolated from 7 hospitals and with prevalence of 33 strains of MRSA. Of all strains, 32(36.0%) were isolated from respiratory medicine and 20(22.5%) from orthopedics. 41(46.1%) strains of Staphylococcus aureus were isolated from sputum and 16(18.0%) from wound secretion. 89 strains of Staphylococcus aureus had highly susceptibility to vancomycin, teicoplanin, quinupristin/dalfopristin, cotrimoxazole, levofloxacin, norfloxacin. Resistance rates to commonly used antimicrobial drugs of MRSA were significantly higher than methicillin-sensitive. A total of 32 MRSA were detected carrying bla_mecA gene with the detection rate of 97%. Conclusion Clinical departments should be based on microbial culture report for rational use of antibiotics because of MRSA with more serious drug resistance. The gene of bla_mecA is the main mechanism of resistance for MRSA.

目的 探讨儿童肾病综合征(NS)的红细胞分布宽度(RDW)与肾功能损害的关系。方法 收集168例NS患者作为观察组,根据eGFR分期分为三组,按照起病时长4月为界限分为两组;选健康儿童100例为对照组。检测各组血常规、肝肾功能等,采用SPSS 21.0软件进行统计分析。结果 ①与对照组相比,NS患儿的RBC[(4.86±0.69)vs(4.32±0.48)],RDW[(13.39±1.69)vs(12.99±1.04)]升高,差异有统计学意义(P<0.05);②RDW在肾功能3期(14.60±1.36)较2期(12.84±0.79)升高,在起病时长≤4月患儿(13.66±1.78)较健康儿童(12.99±1.04)上升,差异有统计学意义(P<0.05);红细胞平均容积(MCV)在起病时长≤4月较对照组下降,起病时间>4月组较起病时长≤4月上升,差异有统计学意义(P<0.05)。结论 儿童NS患者的RBC、RDW较健康儿童升高,RDW在肾功能3期较2期升高。

Objective To investigate the relationship between red cell distribution width(RDW) and renal function damage in children with nephrotic syndrome(NS). Methods 168 NS patients were chosen as the observation group, divided into three groups by eGFR level, while also divided into two groups by onset duration of 4 months. 100 healthy children were included as the control group. The blood routine, biomedical function of liver and kidney were detected. Data were analyzed by SPSS 21.0. Results ① Compared to control group, NS patients have higher levels of RBC[(4.86±0.69) vs (4.32±0.48)] and RDW[(13.39±1.69) vs (12.99±1.04)], P<0.05; ② RDW is higher in the third phase of renal function than the second [(14.60±1.36) vs(12.84±0.79)], and also higher in the onset duration of less than 4 months group than the control group [(13.66±1.78) vs (12.99±1.04)], P<0.05; Mean corpuscular volume is lower in the onset duration group of less than 4 months than the control group, and higher in the onset duration group more than 4 months than the onset duration group of less than 4 months, P<0.05. Conclusion The RBC, RDW are higher in children NS patients than in the healthy children; RDW is higher in the third renal function than the second renal function.