目的 统计分析2011—2014年我院分离的肠杆菌科细菌数据,探讨耐碳青霉烯肠杆菌科细菌(CRE)的流行特征。方法 收集肠杆菌科细菌,根据药敏结果筛选出CRE菌株,并对相关临床资料进行统计分析。结果 共分离得到CRE菌株187株,标本来源依次为尿液(32.6%)、痰液(28.9%)和血液(10.7%)。从科室分布来看,39.0%的菌株来自重症监护室病区,23.0%的菌株来自泌尿外科病区,在其它病区呈散发分布。菌株的种属分布方面,肺炎克雷伯菌的比例为39.6%, 大肠埃希菌的比例为20.9%;从病人年龄构成来看,50岁以上高龄患者的分离比例达74.4%。CRE的分离数目随年份的递增而不断升高。结论 耐碳青霉烯肠杆菌科细菌的流行率呈现逐年递增的趋势,临床应合理使用相关抗生素,预防和控制CRE在医院环境中的流行。

Objective To investigate the epidemiological features of carbapenem resistant Enterobacteriaceae in a collection of clinical Enterobacteriaceae strains isolated during 2011-2014 from our hospital. Methods The Enterobacteriaceae strains were collected and CRE strains were screened by their resistance to carbapenems. Clinical information was analyzed to characterize the epidemiological traits of CRE strains. Results The total number of CRE isolates was 187. These CRE strains were isolated from various clinical specimens, including urine(32.6%), sputum (28.9%), blood (10.7%), and so on. These strains were frequently isolated from intensive care units (ICU) (39.0%) and department of Urology (23.0%). The most frequently isolated species were Klebsiella pneumoniae (39.6%), Escherichia coli (20.9%). The isolation rate is much higher in elderly patients more than 50 years old (74.4%). The percentage of CRE isolates were kept on increasing by years. Conclusion The prevalence carbapenem resistant Enterobacteriaceae in our hospital is increasing every year and it is important to prevent and control the transmission and outbreaks of CRE in the hospital by proper use of related antibiotics in clinical treatment.

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 探讨小脑延髓池注射纳洛酮对心肺复苏大鼠脑神经保护的作用机制。方法 将30只雄性SD大鼠随机分为假手术组、常规复苏组和纳洛酮复苏组。采用窒息法建立大鼠心脏骤停模型,复苏的同时给予药物治疗。恢复自主循环(ROSC)后24 h取脑组织,荧光定量PCR法检测脑组织c-Fos mRNA表达水平,免疫组化法检测脑组织c-Fos蛋白的表达。结果 与常规复苏组比较,纳洛酮可显著降低大鼠脑组织c-Fos mRNA及蛋白表达量(P<0.01)。结论 小脑延髓池注射纳洛酮可及时有效的作用于c-Fos基因,发挥脑神经保护作用。

Objective To investigate the neuroprotective mechanism of naloxone injected into cisterna magna on cerebral ischemia-reperfusion. Methods Thirty adult male SD rats were randomly divided into sham group, conventional cardiopulmonary resuscitation (CPR) group and naloxone CPR group. Asphyxiation was used to set up rat cardiac arrest model, and corresponding drugs were given when the resuscitation was carried out. The Brain tissues were taken at 24 h after restoration of spontaneous circulation(ROSC). Fluorescence quantitative polymerase chain reaction (PCR) and immunohistochemical was used to detect the expression of c-Fos proteins was used to detect the expression of c-Fos mRNA level. Results Compared with the conventional CPR group, Naloxone could significantly decrease the expression of c-Fos protein and c-Fos mRNA in rat brain. Conclusion Naloxone injected into cisterna magna can promptly and effectively act on c-Fos gene, playing a neuroprotective role.

目的 探讨糖尿病胃轻瘫大鼠不同血糖水平对Cajal间质细胞(ICC)的影响及其机制。方法 选择雌性Wista大鼠60只进行随机分组,实验组40只,对照组20只。实验组糖尿病Wista大鼠模型以单次腹腔注射链脲佐菌素法诱导。免疫组织化学荧光染色检测不同血糖浓度大鼠胃ICC数量及网络结构。结果 实验组大鼠血糖浓度高于对照组,ICC数量,低于对照组,且比较差异有统计学意义(P<0.05)。实验组大鼠中血糖浓度越高,ICC数量越低,说明血糖浓度升高可能与平滑肌及神经末梢之间缝隙连接的减少及其ICC网络的超微结构损伤及异常有关。结论 DM小鼠胃组织中血糖水平的升高,可能是DM胃中ICC数量减少的原因;外源性降低血糖能改善DM相关的胃肠道ICC病变。

Objective To observe the effects of glucose fluctuations on Cajal interstitial cells (ICC) of rats with diabetic gastroparesis(DGP) and its mechanistic. Methods 60 Wistar rats were selected and randomly divided into two groups. 20 rats in experimental group and 40 rats in control group. Used immunofluorescence staining to detect the amount of gastric ICC and network structure in DGP rats with different glucose levels. Results The blood glucose concentration in the experimental group was significantly higher than that in the control group, the amount of ICC in the experimental group was significantly lower than that in the control group(P<0.05). The amount of ICC decreased with the increase of glucose levels. In the experimental group, The gap junctions between smooth muscle and nerve endings, ultrastructural damage and abnormalities of the ICC network were probably related to glucose level. Conclusion The increase of glucose level was probably the cause of the decrease of the amount in ICC. Exogenousy decrease glucose levels probably can help to improve the lesion of ICC with DGP.

大数据时代的到来,给各行各业及整个社会文化带来了深刻变革。医学图书馆经受这一领域洗礼时,其数据处理方法和用户服务模式会发生显著变化,也对馆员素质提出了新的要求。文章就大数据时代医学图书馆馆员素质教育提出了几点建议。

目的 对中医治未病在社区孕妇孕期保健应用中效果进行探讨。方法 选取符合条件的300名社区孕妇,随机分为对照组和干预组,对照组不采取干预措施,干预组依据孕妇的中医体质判定表实施相应的中医干预方法,持续二个月,并对两组孕妇进行随访。对比分析两组孕妇的分娩和产后情况。结果 干预组孕妇自然分娩95例,剖宫产55例,自然分娩率高于对照组孕妇,差异有统计学意义(P<0.05);干预组新生儿巨大儿的发生率为6.7%,低于对照组的16.7%,差异有统计学意义(P<0.05);此外,干预组孕妇先兆流产、早产、妊娠期高血压和妊娠期糖尿病的发生例数低于对照组孕妇(P<0.05)。结论 应用中医治未病思想指导孕期保健,有助于减少孕产妇并发症和巨大儿发生率,保证母儿健康。

目的 探讨一种适合社区糖尿病患者健康素养的干预方法,并进一步探讨提高糖尿病患者健康素养对社区卫生服务利用的影响。方法 选择2014年—2015年在我社区卫生服务中心建档的210例糖尿病居民为调查研究对象,对糖尿病患者进行健康素养干预后,比较其健康素养、基本医疗服务利用、社区卫生服务利用情况。结果 对社区糖尿病人进行健康素养干预后,患者的健康理念、传染病预防、健康行为、基本医疗知识、安全素养得分均比干预前高,差异有统计学意义(P<0.05)。首次就诊医疗机构首选社区率及区县级医疗机构就诊的比例干预后比干预前高(P<0.05),最近两周内在社区医疗机构就诊率、签约全科医生率均比健康素养干预前高,差异有统计学意义(P<0.05)。而糖尿病患者过去1年住院例数干预前后无差别,差异没有统计学意义(P>0.05)。患者参与社区健康教育活动的次数干预后比干预前多(P<0.05),参加免费体检及接受社区医生健康生活方式的指导的比例比干预前高(P<0.05)。结论 利用健康促进模式可提高糖尿病患者的健康素养,健康素养的提高可使其对卫生服务的利用有所增加,使其自身的健康状况得以改善。

目的 研究分析甲强龙静脉注射对老年腹部全麻术患者血流动力学和呼吸动力学的影响。方法 选取2014年3月—2015年3月拟于我院行腹部全麻手术的老年患者76例,随机分为实验组和对照组,每组38例,均对其行全身麻醉。两组病人麻醉诱导用药咪达唑仑0.05 mg/kg,速眠安0.15 mg/kg,乙咪酯 0.2 mg/kg,气管插管后连接麻醉呼吸机。麻醉维持咪达唑仑和速眠安各0.05 mg/kg,给予实验组静脉注射甲强龙1 mL(40 mg),对照组静脉注射生理盐水1 mL。记录两组患者给药前(T₁)、给药后10 min(T₂)、20 min(T₃)、30 min(T₄)、40 min(T₅)的气道峰压(Ppeak)、气道平台压(Pplat)、肺的顺应性(Compl)、气道阻力(Raw)等呼吸动力学参数值。以及两组患者给药前20 min(T₀)和T₁～T₃患者的收缩压(SBP)、舒张压(DBP)、平均动脉压(MAP)和心率(HR)等血流动力学参数值,并于以上各时间点采取两组患者静脉血测定其血浆中cAMP和cGMP含量。观察比较两组患者各时间点的数据变化以及拔管后10 min(T₆),15 min(T₇)和35 min(T₈)的RAMSAY镇静评分和RASS评分。结果 实验组在T₂～T₅时Compl明显增高,而同期Ppeak、Pplat、Raw则降低(P＜0.05)。与对照组相比较,实验组在T₀到T₄的SBP、DBP、MAP和HR无差异,且各时间点的数值低于同期对照组。两组患者在T₀和T₃cAMP和cGMP含量比较无差异,实验组cAMP和cGMP含量在T₁和T₂时低于对照组,两组患者在T₈时的Ramsay评分和RASS评分比较差异无统计意义,但实验组患者在T₆和T₇时的镇静评分高于对照组(P＜0.05),而同一时间点的RASS躁动——镇静量表评分则低于对照组(P＜0.05)。结论 甲强龙静脉注射能稳定老年腹部全麻术患者的血流动力学和呼吸动力学,抑制手术过程中的应激反应,改善苏醒质量和镇静效果,值得临床上推广使用。

目的 探讨清洁手术在围手术期间所出现的抗菌药物不合理现象的危险因素,提出应对措施。方法 选用我院普外科收治的四种清洁手术(骨折内固定取出手术、乳腺手术、甲状腺手术和疝气手术)患者460例,对所有患者在围手术期间抗菌药物的应用情况进行研究,并对其不合理使用危险因素进行多因素logistic回归分析。结果 患者在清洁手术中抗菌药物的应用率为100%,其中头孢菌素类药物的使用率最高,喹诺酮类药物次之,四种清洁手术的术后用药时间均>7天。对患者资料进行多因素logistic回归分析结果显示,围手术期抗菌药物的不合理使用危险因素主要包括无指征预防使用抗菌药物、给药时间不当、术后用药时间过长、药物选用不合理等七种危险因素(P<0.05)。结论 当前清洁手术的围手术期中,存在着抗菌药物不合理使用的情况,临床诊治过程中应强化科学应用意识和合理化使用观念,确保医药资源的充分利用。

目的 了解2014年广州地区儿童专科医院的病原菌分布及耐药情况与全国细菌耐药监测网(CARSS)公布数据的异同点,并提出相关用药建议,为儿童临床合理应用抗生素提供科学依据。方法 将2014年本中心儿童院区检测的儿童细菌耐药数据与同期国家卫生计生委合理用药专家委员颁布的CARSS数据进行比较。结果 儿童医院与CARSS数据比较,革兰阳性菌比例较高(49.8% vs 28.5%),革兰阴性菌比例较低(50.2% vs 71.5%);肺炎链球菌、化脓性链球菌及流感嗜血杆菌检出率较高;耐药率明显升高的是肺炎链球菌对青霉素耐药率(33.2% vs 4.3％),耐药率明显降低的是鲍曼不动杆菌对碳青霉烯类耐药率(10.3% vs 57.0％),大肠埃希菌对喹诺酮类耐药率(27.6% vs 54.3％)。结论 广州地区儿童病原菌分布及耐药情况与CARSS数据比较有一定差异,特别是儿童主要致病菌肺炎链球菌对青霉素耐药的形势严峻,经验性抗感染治疗时需考虑本地及儿童的病原菌特殊性。