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 探讨女性宫内节育器使用年限及类型与生殖道感染的关系,以降低生殖道感染率。方法 2013年1月—2015年1月于我院门诊检查使用宫内节育器360名女性的临床资料进行回顾性分析,研究节育器使用年限、类型、患者年龄、孕次、是否绝经与生殖道感染的关系。结果 带尾丝组患者的生殖道感染率比不带尾丝组高(P<0.05),无尾丝组生殖道感染率与置器年限无关,差异无统计学意义(P>0.05),带尾丝组生殖道感染率与置器年限有关,差异有统计学意义(P<0.05)。生殖道感染率与与女性年龄及妊娠次数无关,与是否绝经有关,未绝经女性的生殖道感染率较高(P<0.05)。结论 带尾丝的宫内节育器的使用可使生殖道感染率增加,使用年限越长,生殖道感染的发生率越高。

Objective To investigate the associations between different time and types of intrauterine device with female reproductive tract infection in order to provide evidence for reducing infection rate. Methods 360 females using intrauterine device were continually recruited during Jan 2013-Jan 2015 in our hospital, and their clinical data was also collected in the same period. The associations between reproductive track infection and clinical characteristics including service time, types, age, gravidity and menopause status were further analyzed. Results We found that the female using intrauterine device with tail wire, as well as with non-menopause had higher infection risk than those did not have(P<0.05). In addition, service time of intrauterine device was significantly associated with infection risk in those patients using intrauterine device with tail wire. However, there was no any remarkable relevance for age and gravidity with risk of reproductive track infection. Conclusion The use of intrauterine device with tail wire, as well as longer service time, could cause the increased risk of reproductive track infection for females.

目的 探讨系统性红斑狼疮(SLE)患者并发感染的影响因素并提出相应对策。方法 统计2012年1月—2015年12月在风湿免疫科住院的SLE患者,依据是否存在感染分为两组:感染组和非感染组。查电子病历记录感染组患者感染部位、所感染病原体的种类、免疫抑制治疗方案、病程、住院次数、血液生化指标、红细胞沉降率、肝肾功能以及补体C3、C4 水平,分析SLE患者发生感染的危险因素。结果 近三年风湿免疫内科共收治SLE患者302例,合并感染44例,发生感染63例次,感染发生率7.32%,高于全院感染发生率2.82%,差异有统计学意义(P<0.05)。呼吸系统感染有43例次,占68.25%,是患者最常见的感染部位。单因素分析显示,激素的冲击治疗、血红蛋白降低、白蛋白降低和血清肌酐水平异常(P<0.01)及ESR异常(P<0.05)是医院感染的危险因素。结论 SLE患者感染发生率高,免疫抑制剂冲击治疗、有合并症患者更易发生感染。应合理使用免疫抑制剂,密切留意患者感染症状,并定期检测血红蛋白、白蛋白及ESR等各项实验室指标,及时发现感染并进行病原学培养,做到尽早、合理治疗。

目的 观察多西环素联合阿莫西林、泮托拉唑、枸橼酸铋钾治疗幽门螺杆菌(Hp)感染消化性溃疡的临床疗效和不良反应。方法 选取于2013年7月—2015年7月收治的98例Hp感染消化性溃疡患者,根据不同的治疗方式,随机将其分为治疗组和对照组,每组各49例,治疗组患者给予多西环素联合阿莫西林、泮托拉唑、枸橼酸铋钾治疗;对照组给予克拉霉素联合阿莫西林、泮托拉唑、枸橼酸铋钾治疗, 两组患者连续服用10天后,均口服泮托拉唑40 mg,每天1次,总疗程为4周。疗程结束4周后,予胃镜复查和Hp检查,观察两组患者的临床疗效、溃疡愈合率、Hp根除率及不良反应。结果 治疗组与对照组患者的临床效果总有效率分别是95.91％、81.63％;治疗组与对照组患者的溃疡愈合率分别是83.67％、61.22％ ;治疗组与对照组患者的Hp根除率分别是89.79％、65.30％;治疗组患者的临床疗效总有效率、溃疡愈合率和Hp根除率均明显优于对照组,差异均有统计学意义(P<0.05),两组患者不良反应发生率比较,差异无统计学意义(P>0.05)。结论 多西环素联合阿莫西林、泮托拉唑、枸橼酸铋钾治疗Hp感染消化性溃疡疗效显著、溃疡愈合率高、Hp根除率高、且安全无明显不良反应,值得临床广泛推广使用。

目的 回顾分析慢性阻塞性肺疾病急性加重期并或不并肺部结核感染在感染及营养方面指标的差异性,明确结核感染对AECOPD的影响。方法 选取2013年7月—2015年6月因急性发作入住我院的COPD患者105例,根据GOLD 2011对COPD的诊断标准及卫生部2008年制定的肺结核诊断标准将其分为无结核组、稳定期组、好转期组及进展期四组。分别在入院时测定患者白细胞计数、中性粒细胞比率、总淋巴细胞计数、淋巴细胞比值、红细胞沉降率、血红蛋白浓度、血清白蛋白及C反应蛋白及体重指数。结果 各组感染指标比较,WBC、CRP两指标差异不显著(P>0.05),而无结核组相较于其他三组,NEUT%更高(F=4.004,P=0.010)、LY%及ESR更低(F/P分别为3.668/0.015和20.197/0.000);各组营养指标比较,合并有肺结核的三组,其Hb、ALB及BMI均比无结核组低,达到统计学差异(P<0.05),而TLC在各组间无差异(F=0.858,P=0.466)。结论 合并有结核感染的AECOPD患者更容易出血贫血(Hb降低)、低蛋白血症(ALB降低)、低体重(BMI降低)、中性粒细胞含量偏低(NEUT%降低)而血沉(ESR)、淋巴细胞比率(LY%)升高的情况,对出现此类情况的AECOPD患者应进行结核感染相关检查。

目的 了解河源市无偿献血人群中丙型肝炎病毒(HCV)感染情况及HCV感染合并乙型肝炎病毒(HBV)、人类免疫缺陷病毒(HIV)以及梅毒螺旋体(TP)感染的情况,为当地预防和控制输血传播性疾病提供实验室依据。方法 选择2010年1月1日—2015年12月31日河源市中心血站无偿献血者71 618例,采用酶联免疫吸附试验(ELISA)方法检测其血浆抗-HCV、乙型肝炎表面抗原(HBsAg)、抗-TP及HIV(Ag/Ab),统计分析抗HCV阳性无偿献血者合并感染HBV、HIV和TP的情况。结果 71 618例无偿献血者标本中抗-HCV、HBsAg 、抗-TP及HIV(Ag/Ab) 阳性率分别为0.56％(402例)、1.48％(1 062例)、1.14％(821例)、0.09％(61例);初次献血者抗-HCV、HBsAg 、抗-TP及HIV(Ag/Ab)阳性率均高于多次献血者(P＜0.05);402例抗-HCV阳性无偿献血者中合并HBsAg、抗-TP、HIV(Ag/Ab) 阳性率分别为1.74%(7例)、4.98%(20例)、0.25%(1例)。结论 抗-HCV阳性献血者合并TP感染率显著高于抗-HCV阴性无偿献血者, HCV合并HBV、HIV感染率低。

目的 了解老年患者医院感染的发生情况及相关因素,为有效降低医院感染提供临床依据。方法 对我院2010年6月—2014年6月452例60岁以上的老年患者医院感染情况进行回顾性分析,调查并分析其年龄、住院天数、医院感染部位及相关因素。结果 老年患者医院感染的发生与年龄增长、住院天数延长、感染部位、基础病及抗生素不合理应用等因素密切相关。结论 根据医院感染的相关因素,对老年人加强病房管理及基础护理,不仅改善治疗操作中易感染的环节,减少感染途径,还可以降低医院感染发生率。

目的 探讨不同用药方案治疗慢性阻塞性肺病所致肺部感染的药物经济学。方法 本次医学研究选择我院2012年1月—2014年1月收治的200例慢性阻塞性肺病所致肺部感染患者为观察对象,随机将其分为A组、B组、C组和D组,A组观察对象接受盐酸莫西沙星治疗,B组观察对象接受硫酸依替米星治疗,C组观察对象接受头孢哌酮钠治疗,D组观察对象接受他唑巴坦钠/哌拉西林钠治疗,回顾分析四组观察对象药物经济学。结果 四组观察对象药物敏感度对比差异有统计学意义(P<0.05),而临床治疗效果和不良反应发生率对比则差异无统计学意义(P>0.05)。结论 慢性阻塞性肺病所致肺部感染患者接受C方案治疗,具有理想的临床效果和较高的药物经济学效率。

目的 探讨急性阑尾炎(acute appendicitis, AA)及急性感染性肠炎(acute infectious enteritis, AIE)患儿的阑尾高频超声影像特点及其显像敏感性。方法 回顾性分析临床确诊为急性阑尾炎患儿120例,急性感染性肠炎患儿160例,并对其行高频超声检查,另设120例正常儿童为对照组。分析高频超声阑尾显示率,阑尾外径,阑尾周围系膜炎性变化以及阑尾的位置等情况。结果 AA组、AIE组、对照组阑尾的显示率分别为96.7%、80.6%、68.3%,差异有统计学意义(P<0.05)。三组超声显示的阑尾外径分别为(8.5±2.2)mm、(4.3±0.8)mm、(3.5±0.7)mm,相互间差异亦均有统计学意义(P<0.05)。AA组所有的阑尾周围系膜炎症改变均可探及,但AIE组的阑尾周围系膜无变化。结论 小儿急性阑尾炎高频超声显像敏感性高,旨在为临床对AA早期诊断、早期治疗提供较准确全面的影像学依据。

Objective Use high-frequency ultrasound to determine the frequency of visualization and image feature of the appendix in children with acute appendicitis (acute appendicitis, AA) and with acute infectious enteritis (acute infectious enteritis, AIE). Methods The ultrasonic features of 120 children with AA, 160 children with AIE, and 120 randomly selected asymptomatic children were analyzed retrospectively. And their visualization rate, outer appendiceal diameter, presence or absence of inflamed periphery appendiceal mesenterium, and location of the appendix were recorded. Results The visualization rates of the appendix were 96.7%, 80.6%, and 68.3% for AA groups, AIE groups, and the control, respectively(P<0.05). The outer appendiceal diameters for the 3 groups were (8.5±2.2)mm, (4.3±0.8)mm, and (3.5±0.7)mm. Difference among the 3 groups was statistically significant also. Periphery appendiceal inflamed mesenterium was detected in all AA cases, but in none of the AIE cases. Conclusion High ultrasound imaging sensitivity of puerile acute appendicitis provided relatively accurate comprehensive imaging basis for clinical early diagnosis and early treatment.

目的 调查广州市在校大学生AIDS相关知识及对HIV感染者态度现状,为学校更有效地开展大学生AIDS健康教育提供依据。方法 采用目的抽样方法,对广州市某高校 1200名在校大学生进行关于AIDS相关知识、态度的问卷调查。结果 不同年级、生源地,AIDS相关知识差异均有统计学意义(P值均＜0.01);多数学生对HIV感染者持积极态度,但仅5.73%的学生愿意与HIV感染者共餐;2.70%愿意与感染HIV的同学同住一个寝室。网络是大学生获取AIDS相关知识的最主要途径。结论 大学生AIDS相关知识知晓率水平较高,但缺乏系统性和全面性;多数学生对HIV感染者持积极态度,但是一旦与自我卷入较深,即表现出对HIV感染者的回避甚至歧视。高校应加强对大学生AIDS健康教育的系统性、全面性和深刻性,以消除对AIDS的心理恐惧,达到对HIV感染者的零歧视。

Objective To investigate the AIDS related knowledge of the Guangzhou undergraduates and the attitudes on HIV infection status, for the school to provide basis for AIDS health education and to carry out AIDS health education during college students more effectively. Methods 1200 college students in a university in Guangzhou were surveyed by a questionnaire on HIV/AIDS related knowledge and attitudes, using the way of purposive of sampling. Results There was statistical significant difference on the AIDS-related knowledge in the different grades and origin of students (P<0.01). The majority of students has a positive attitude to the HIV-infected, but only 5.73% of them wer willing to share a meal with HIV-infected persons, and 2.70% of them were willing to live with HIV-infected. The network is the most important way to access to HIV/AIDS related knowledge for college students. Conclusion The level awareness during college student on AIDS-related knowledge is high, but lack of systematic and comprehensive. The majority of students had a positive attitude towards the HIV-infetected, however once self-involved, they may avoid even discriminate the HIV-infected individuals. Therefore, the universities should strengthen AIDS health education of college students comprehensively and profoundly, in order to eliminate fear of AIDS, and reached zero discrimination HIV-infected persons in the future.