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1.
黄冬梅 《检验医学与临床》2020,17(16):2401-2403
目的探讨慢性阻塞性肺疾病急性加重期(AECOPD)患者下呼吸道病原菌分布及耐药特征。方法选取2018年2月至2019年3月该院收治的110例AECOPD患者,收集所有患者痰液送检并进行细菌培养及药敏试验。结果 110例AECOPD患者分离出致病菌123株,革兰阳性球菌为30株(24.4%),以肺炎链球菌、金黄色葡萄球菌为主;革兰阴性杆菌为75株(61.0%),以铜绿假单胞菌、肺炎克雷伯菌、鲍曼不动杆菌为主;真菌为18株(14.6%)。主要革兰阳性球菌肺炎链球菌对克林霉素及红霉素耐药率较高;金黄色葡萄球菌对克林霉素、青霉素、红霉素及苯唑西林耐药率较高。主要革兰阴性杆菌铜绿假单胞菌对环丙沙星和庆大霉素耐药率较低;肺炎克雷伯菌对哌拉西林/他唑巴坦、氨曲南、左氧氟沙星及头孢哌酮/舒巴坦耐药率较低;鲍曼不动杆菌对所有抗菌药物耐药率均较高。结论 AECOPD患者下呼吸道病原菌以革兰阴性杆菌为主,可根据病原菌临床耐药率不同制订合适的治疗方案,促进患者恢复。  相似文献   

2.
目的探讨支气管扩张合并感染患者纤维支气管镜下支气管分泌物培养病原菌分布及耐药情况,为合理选择抗菌药物治疗提供参考。方法选取2013年6月-2015年12月华中科技大学同济医学院附属梨园医院呼吸内科住院的支气管扩张合并感染患者97例,收集纤维支气管镜下支气管分泌物标本进行病原菌培养及药敏试验。结果 97例患者支气管分泌物分离病原菌53株(54.6%),其中革兰阴性杆菌49株(占92.4%),以铜绿假单胞菌为主,其次为鲍曼不动杆菌、肺炎克雷伯菌;革兰阳性菌3株(占5.7%),为金黄色葡萄球菌2株和肺炎链球菌1株;真菌1株(1.9%),为白念珠菌。药敏试验结果显示,铜绿假单胞菌对妥布霉素、阿米卡星、头孢吡肟、氨曲南敏感率较高(均70%),对左氧氟沙星耐药率最高(为100%);鲍曼不动杆菌对妥布霉素、阿米卡星敏感率较高(均为85.7%),其次对亚胺培南(42.9%);肺炎克雷伯菌对头孢噻肟、庆大霉素、环丙沙星、左氧氟沙星耐药率较高(均50%)。结论支气管扩张合并感染患者纤维支气管镜下分泌物培养病原菌以革兰阴性杆菌为主,其药敏试验结果显示对妥布霉素、阿米卡星敏感率较高,对环丙沙星、左氧氟沙星耐药率较高。研究对治疗支气管扩张合并感染患者具有重要指导意义。  相似文献   

3.
小儿下呼吸道感染的病原菌及耐药性调查   总被引:15,自引:0,他引:15  
目的 调查温州地区小儿下呼吸道感染的病原菌及其耐药性。方法 标本经分离培养,做菌株鉴定和药敏试验。结果 1763份下呼吸道感染患儿的痰液培养共分离出病原菌715株,总阳性率为40.6%。其中革兰阴性菌448株,占62.7%;革兰阳性菌148株。占20.7%;真菌119株。占16.6%。革兰阴性菌以肺炎克雷伯菌、大肠埃希菌、铜绿假单胞菌和鲍曼不动杆菌为主。肺炎克雷伯菌和大肠埃希菌产超广谱β-内酰胺酶(ESBLs)的百分率分别为49.3%和46.5%。较敏感的抗生素为弧胺培南、丁胺卡那霉素、环丙沙星、哌拉西林/他唑巴坦和头孢哌酮/舒巴坦;除铜绿假单胞菌对复方新诺明的耐药率为100%外,铜绿假单胞菌和鲍曼不动杆菌对各种抗生素的耐药性均较低。革兰阳性菌中以肺炎链球菌和金黄色葡萄球菌为主。肺炎链球菌对青霉素的耐药率达到71.1%,对环丙沙星和万占霉素敏感,耐药率为0%。金黄色葡萄球菌中MRSA占18.0%,对环丙沙星、左旋氧氟沙星和万占霉素敏感。结论 小儿下呼吸道感染的病原菌以革兰阴性荫为主。肺炎克雷伯菌、大肠埃希菌、铜绿假单胞菌、鲍曼不动杆菌、肺炎链球菌、金黄色葡萄球菌为主要病原菌。对抗生素的耐药性较强,临床上应注意对这些菌株的检测,积极防治。  相似文献   

4.
目的监测我院医院感染病原菌分布及耐药状况,为指导临床合理用药及控制医院感染提供依据。方法采用全自动细菌鉴定及药敏分析仪,对本医院住院患者的各类标本分离细菌进行鉴定和耐药性分析。结果共分离出病原菌4978株,其中革兰阴性杆菌917株,革兰阳性球菌547株,其余为其他菌株。革兰阴性杆菌以大肠埃希菌、铜绿假单胞菌、肺炎克雷伯菌、鲍曼不动杆菌、阴沟肠杆菌为主,革兰阳性球菌以表皮葡萄球菌、粪肠球菌、金黄色葡萄球菌为主。大肠埃希菌、铜绿假单胞菌对头孢吡肟耐药率分别为48.6%和56.4%,其他革兰阴性杆菌对亚胺培南和美洛培南耐药率<6%。革兰阳性球菌对呋喃妥因和万古霉素均比较敏感,金黄色葡萄球菌对莫西沙星耐药率高达76%。结论医院感染病原菌以革兰阴性杆菌和革兰阳性球菌为主,这些致病菌对常用抗生素耐药率较高,必须加强耐药性监测和药敏试验,指导合理使用抗生素。  相似文献   

5.
目的分析儿童化脓性脑膜炎病原菌的分布特点及其耐药性。方法选取2015年5月至2018年5月化脓性脑膜炎患儿68例,均采集血液、脑脊液标本行细菌培养,统计脑脊液病原菌检出率及年龄段分布情况。结果 68例化脓性脑膜炎患儿共检出12种病原菌68株,革兰阳性菌检出6种41株(60.29%),前3位依次是肺炎链球菌22株(32.35%),金黄色葡萄球菌10株(14.71%),溶血葡萄球菌4株(5.88%);革兰阴性菌检出6种27株(39.71%),其中大肠埃希菌10株(14.71%)。0~1岁、1~5岁、5~10岁年龄段主要检出病原菌分别为肺炎克雷伯菌8株(40.00%)、肺炎链球菌16株(48.48%)、肺炎链球菌4株(26.67%)。结论化脓性脑膜炎多发于5岁以下幼儿,病原菌各年龄段分布不同,大肠埃希菌为新生儿化脓性脑膜炎的常见病原菌,大肠埃希菌、肺炎克雷伯菌、肺炎链球菌、金黄色葡萄球菌均对万古霉素敏感,大部分病原菌对氨苄西林、红霉素、氯霉素耐药或完全耐药。  相似文献   

6.
目的 研究儿童和成人下呼吸道感染病原菌分布及耐药性,比较两者差异,为临床合理用药提供依据,减缓耐药病原菌的产生。方法 采集2014年1月至2015年10月儿童和成人下呼吸道感染患者的痰标本和支气管肺泡灌洗液,进行细菌鉴定及药敏试验,比较两者差异。结果 儿童和成人患者分离的病原菌均以革兰阴性杆菌为主,分别占62.4%和89.7%,革兰阳性球菌分别占37.6%和10.3%。儿童患者分离的革兰阴性杆菌排名依次为流感嗜血杆菌、大肠埃希菌、肺炎克雷伯菌、鲍曼不动杆菌、卡他莫拉菌、阴沟肠杆菌、铜绿假单胞菌;分离的革兰阳性球菌排名依次为金黄色葡萄球菌、肺炎链球菌。成人分离的革兰阴性杆菌排名依次为肺炎克雷伯菌、鲍曼不动杆菌、铜绿假单胞菌、嗜麦芽窄食单胞菌、黏质沙雷菌、大肠埃希菌、阴沟肠杆菌;分离的革兰阳性球菌排名依次为金黄色葡萄球菌、无乳链球菌、肺炎链球菌。儿童和成人患者耐甲氧西林金黄色葡萄球菌分别为12.8%和53.9%。儿童分离的革兰阴性杆菌对碳青霉烯类药耐药率较低,小于5.0%;成人对碳青霉烯类药耐药率较高,尤其是鲍曼不动杆菌,其对碳青霉烯类药耐药率大于50.0%。结论 儿童和成人病原菌株分布和耐药性差异较显著,临床用药应充分考虑,为患者早期治疗提供依据,同时尽快进行药敏试验,科学合理用药。  相似文献   

7.
目的 了解重症监护病房患者感染病原菌的分布特点及耐药性,对临床合理选用抗菌药物提供指导。方法 对医院重症监护病房2012~2013年送检的652份病原学标本进行细菌学检查,采用全自动细菌鉴定系统进行菌种鉴定和K-B纸片扩散法进行药敏试验。结果 652份送检的ICU标本共分离出致病菌339株,其中革兰阴性杆菌217株,革兰阳性球菌108株。位于前5位革兰阴性致病菌依次为铜绿假单胞菌、肺炎克雷伯菌、大肠埃希菌、鲍曼不动杆菌、嗜麦芽假单胞菌。位于前3位革兰阳性致病菌依次为化脓性链球菌、金黄色葡萄球菌和肺炎链球菌。药敏试验提示大多数致病菌均呈多重耐药。结论 重症监护病房感染以革兰阴性杆菌菌为主,对常用抗菌药物耐药率较高,多重耐药现象普遍。  相似文献   

8.
目的:研究分析新生儿血流感染的病原菌分布及其耐药情况,为临床合理使用抗菌药物提供参考。方法:回顾分析上海市第一妇婴保健院(以下简称我院)2014年至2017年新生儿血培养阳性的菌株分布及其耐药情况。结果:2014年至2017年共计送检5 001份新生儿血培养样本,共检出新生儿血流感染153例,菌株155株,其中革兰阳性菌88株,以凝固酶阴性葡萄球菌(coagulase-negative Staphylococcus, CNS)为主(38株),其次为无乳链球菌(20株)、金黄色葡萄球菌(18株);革兰阴性菌57株,以大肠埃希菌(18株)和肺炎克雷伯菌(17株)为主;真菌10株。检出新生儿早发型血流感染54例,病原菌以无乳链球菌(27.27%)、大肠埃希菌(21.82%)为主,晚发型检出血流感染99例,病原菌以CNS(25.00%)、金黄色葡萄球菌(17.00%)、肺炎克雷伯菌(15.00%)为主。56株葡萄球菌中38株为耐甲氧西林葡萄球菌;无乳链球菌对克林霉素、红霉素和四环素的耐药率较高,分别为95.00%、85.00%、95.00%。大肠埃希菌和肺炎克雷伯菌对氨苄西林、哌拉西林、头孢唑林等多种β-内酰胺类和头孢类抗菌药物的耐药率较高,分别为88.57%、62.86%、62.86%,其中产超广谱β-内酰胺酶(extended-spectrum β-lactamases, ESBLs)菌株检出率为60.00%。结论:无乳链球菌和大肠埃希菌为新生儿早发型血流感染的主要病原菌,而CNS、金黄色葡萄球菌和肺炎克雷伯菌为新生儿晚发型血流感染的主要病原菌,晚发型血流感染病原菌的耐药率较高。  相似文献   

9.
目的 调查郴州市儿童感染患者中革兰阳性菌的耐药情况,为临床合理用药提供参考.方法 常规分离培养并鉴定菌种,对鉴定出的病原菌做抗生素敏感试验,以分析其耐药性.结果 从郴州市儿童感染患者中检出的革兰阳性菌1 639株,其中金黄色葡萄球菌649株,凝固酶阴性葡萄球菌530株,肺炎链球菌390株,粪肠球菌51株,屎肠球菌19株.检出的革兰阳性菌对罗红霉素、阿奇霉素的耐药率大于50%,对氯霉素、利福霉素的耐药率小于30%,对万古霉素的耐药率小于5%.肺炎链球菌对罗红霉素、阿奇霉素、克林霉素的耐药率大于50%,对其他抗菌药物大部分敏感.结论 检出的革兰阳性菌对头孢菌素和大环内酯类药物等儿童常用抗生素的耐药率较高,对氟喹诺酮类、氨基糖苷类、氯霉素等儿童禁用药的耐药率较低.因此,在儿童感染患者中合理使用抗生素,以减少耐药菌株的产生非常重要.  相似文献   

10.
目的分析南京部分社区成年健康人群鼻咽部5种主要机会致病菌(凝固酶阴性葡萄球菌、金黄色葡萄球菌、肺炎链球菌、流感嗜血杆菌和肺炎克雷伯菌)的耐药情况。方法将2009年7月至2010年7月分离自社区成年健康人群鼻咽部的5种主要机会致病菌分别进行纸片扩散法药敏试验和琼脂稀释法。按CLSI 2010年标准判定结果,用WHONET 5.4软件进行数据分析。结果 1019例社区成年健康受检者鼻咽部标本中分离出凝固酶阴性葡萄球菌404株,其中甲氧西林耐药凝固酶阴性葡萄球菌(MRCNS)162株(占40.10%);金黄色葡萄球菌109株中甲氧西林耐药金黄色葡萄球菌(MRSA)19株(17.43%);两种葡萄球菌对青霉素均表现出高度耐药,对万古霉素100%敏感,MRSA和MRCNS对多种临床常用抗菌药物均显示高度耐药。肺炎克雷伯菌32株,除对阿莫西林/克拉维酸耐药率稍偏高(39.20%),对其他常用抗菌药物敏感性皆较高,ESBLs阳性率为25.00%。49株肺炎链球菌中大部分对红霉素、克林霉素和青霉素表现出较高的耐药率,分别为71.20%、76.90%和74.40%。流感嗜血杆菌74株,对复方新诺明耐药率最高,为44.4%,但对其他常用的抗菌药物敏感性均较高。结论南京部分社区健康成年人鼻咽部所携带的主要机会致病菌中,MRSA和MRCNS对多种临床常用抗菌药物均显示高度耐药,未发现对万古霉素耐药的葡萄球菌。肺炎链球菌对常用的红霉素、克林霉素和青霉素显示了高耐药。甲氧西林敏感金黄色葡萄球菌(MSSA)、甲氧西林敏感凝固酶阴性葡萄球菌(MSCNS)、流感嗜血杆菌和肺炎克雷伯菌对多数常用的抗菌药物敏感性均较高。加强细菌耐药监测,防止耐药菌在社区的扩散尤为重要。  相似文献   

11.
This is a new method for the determination of creatine kinase isoenzyme MB activity in serum. The method uses direct activity measurement of creatine kinase B subunit activity after blocking of CK-M subunit activity by inhibiting antibodies. The test takes no longer than 15 min. The method yields an intra-serial C.V. of 2.0-12.9%, and a C.V. from day to day of 5.5%. The detection limit is 3.4 U/l creatine kinase MB. In the 95 cases with proven myocardial infarction several types of creatine kinase MB activity kinetics could be determined. The percentage of creatine kinase MB of peak CK-total is 6-25%, with a mean of 11.1%. The amount of creatine kinase MB with respect to total CK activity after reinfarction is higher than the amount after initial infarction.  相似文献   

12.
目的 探讨俯卧位通气对高海拔地区肺复张术(RM)治疗无效急性呼吸窘迫综合征(ARDS)患者的治疗作用.方法 从海拔2260m的地区医院筛选RM治疗无效的41例ARDS患者[平均氧合指数( PaO2/FiO2)较RM前升高<20%视为RM无效],依不同病因分为肺内源性ARDS组(ARDSp组)和肺外源性ARDS组(ARDSexp组),每组再按信封法随机分为俯卧位组和仰卧位组,即ARDSp俯卧位组(11例)、ARDSp仰卧位组(9例)、ARDSexp俯卧位组(10例)、ARDSexp仰卧位组(11例).在通气前及通气1、2、3、4h监测动脉血氧分压( PaO2)、PaO2/FiO2、静态顺应性(Cst)、气道阻力(Raw)的变化.结果 通气lh时,ARDSexp俯卧位组PaO2/FiO2( mm Hg,l mm Hg=0.133 kPa)即较通气前显著升高(157.4±40.6比129.3±48.7,P<0.05),并随通气时间延长呈持续增高趋势,4h达峰值(219.1 ±41.1);且ARDSexp俯卧位组通气3h内PaO2/FiO2较其他3组显著增高,另3组间则差异无统计学意义.ARDSp俯卧位组、ARDSexp俯卧位组通气4h时PaO2/FiO2均较相应仰卧位组显著增高(208.8±39.7比127.4±47.1,219.1±41.1比124.9±50.8,均P<0.05).4组通气前后Cst无显著改变,各组间差异也无统计学意义.ARDSp俯卧位组通气4h时Raw(cmH2O·L-1·s-1)较通气前显著降低(6.8±1.7比10.7±1.8,P<0.05),且明显低于其他3组;其他3组各时间点Raw组内及组间比较差异均无统计学意义.结论 俯卧位通气作为ARDS机械通气重要策略之一,可以改善RM无效高原ARDS患者的氧合,为抢救患者赢得宝贵的时间.  相似文献   

13.
The Department of Veterans Affairs (VA) in the USA operates a network of 172 medical centres which all utilize a hospital information system (HIS) which has been developed and is currently maintained by the VA. During the past several years, an image management and communication module has been developed, installed and clinically utilized at the Washington DC and Maryland VA Medical Centres. This image management and communication system, referred to as the decentralized hospital computer program (DHCP) imaging system, is fully integrated with a commercial picture archiving and communication system (PACS). The system is utilized to capture, archive, and display all images generated within the hospital including radiology, nuclear medicine, pathology, endoscopy, bronchoscopy, and dermatology, intraoperative photographs, ECG data, and a limited number of paper documents. The ultimate goal of the project is to have all patient text and image data available at any clinical workstation to any authorized user anywhere within the network of medical centres. Clinical requirements for an imaging workstation include ease of use, rapid and reliable access to the complete set of patient information, and images which are of acceptable quality to meet the requirements of the user and the subspecialty. Patient confidentiality and data security must be safeguarded at all times. Integration of the images with the remainder of the patient's database was found to be critical to the success of the project. The experience at the Washington and Maryland facilities suggests that an imaging system that is successfully integrated with a hospital information system can provide substantial clinical and economic benefits both within and among medical centres. Clinical acceptance and utilization of the system has been excellent, particularly in diagnostic radiology where DHCP Imaging has been interfaced to a commercial PAC system. Based upon this initial experience, the VA has begun to deploy the system throughout its large network of medical centres.  相似文献   

14.
15.
Myocardial elastography is a novel method for noninvasively assessing regional myocardial function, with the advantages of high spatial and temporal resolution and high signal-to-noise ratio (SNR). In this paper, in-vivo experiments were performed in anesthetized normal and infarcted mice (one day after left anterior descending coronary artery [LAD] ligation) using a high-resolution (30 MHz) ultrasound system (Vevo 770, VisualSonics Inc., Toronto, ON, Canada). Radiofrequency (RF) signals of the left ventricle (LV) in longitudinal (long-axis) view and the associated electrocardiogram (ECG) were simultaneously acquired. Using a retrospective ECG gating technique, 2-D full field-of-view RF frames were acquired at an extremely high frame rate (8 kHz) that resulted in high-quality incremental displacement and strain estimation of the myocardium. The incremental results were further accumulated to obtain the cumulative displacements and strains. Two-dimensional and M-mode displacement images and strain images (elastograms), as well as displacement and strain profiles as a function of time, were compared between normal and infarcted mice. Incremental results clearly depicted cardiac events including LV contraction, LV relaxation and isovolumetric phases in both normal and infarcted mice, and also evidently indicated reduced motion and deformation in the infarcted myocardium. The elastograms indicated that the infarcted regions underwent thinning during systole rather than thickening, as in the normal case. The cumulative elastograms were found to have higher elastographic SNR (SNR(e)) than the incremental elastograms (e.g., 10.6 vs. 4.7 in a normal myocardium, and 6.0 vs. 2.4 in an infarcted myocardium). Finally, preliminary statistical results from nine normal (m = 9) and seven infarcted (n = 7) mice indicated the capability of the cumulative strain in differentiating infracted from normal myocardia. In conclusion, myocardial elastography could provide regional strain information at simultaneously high temporal (>/=0.125 ms) and spatial ( approximately 55 microm) resolution as well as high precision ( approximately 0.05 microm displacement). This technique was thus capable of accurately characterizing normal myocardial function throughout an entire cardiac cycle, at the same high resolution, and detecting and localizing myocardial infarction in vivo.  相似文献   

16.
17.
Morphine, the most widely used mu-opioid analgesic for acute and chronic pain, is the standard against which new analgesics are measured. A thorough understanding of the pharmacokinetics of morphine is required in order to safely and effectively use this analgesic in a wide variety of patients with different levels of organ function. A MEDLINE search was conducted to identify literature published between 1966 and January 2002 relevant to the pharmacokinetics of morphine. These publications were reviewed and the literature summarized regarding unique and clinically important elements of morphine disposition relative to its parenteral administration (including intravenous, intramuscular, subcutaneous, epidural and intrathecal administration), absorption profile (immediate release, controlled release, and sublingual/buccal, and rectal administration), distribution, and its metabolism/ excretion. Special populations, including infants, elderly, and those with renal/liver failure, have a unique morphine pharmacokinetic profile that must be taken into account in order to maximize analgesic efficacy and reduce the risk of adverse events.  相似文献   

18.
ABSTRACT

The Cochrane Library of Systematic Reviews is published quarterly. Issue 4 for 2009 contains 4027 complete reviews, 1906 protocols for reviews in production, and 11447 one-page summaries of systematic reviews published in the general medical literature. In addition, there are citations of 600,000 randomized controlled trials, and 12,200 cited papers in the Cochrane methodology register. The health technology assessment database contains over 7500 citations. This edition of the Library contains 90 new reviews, of which 19 have potential relevance for practitioners in pain and palliative medicine.  相似文献   

19.
Molecular characterization of virulence and antimicrobial resistance profiles were determined for Shigella species isolated from children with diarrhea in Fortaleza, Brazil. Fecal specimens were collected along with socioeconomic and clinical data from children with moderate to severe diarrhea requiring emergency care. Shigella spp. were isolated by standard microbiological techniques, and we developed 4 multiplex polymerase chain reaction assays to detect 16 virulence-related genes (VRGs). Antimicrobial susceptibility tests were performed using disk diffusion assays. S. flexneri and S. sonnei were the predominant serogroups. S. flexneri was associated with low monthly incomes; more severe disease; higher number of VRGs; and presence of pic, set, and sepA genes. The SepA gene was associated with more intense abdominal pain. S. flexneri was correlated with resistance to ampicillin and chloramphenicol, whereas S. sonnei was associated with resistance to azithromycin. Strains harboring higher numbers of VRGs were associated with resistance to more antimicrobials. We highlight the correlation between presence of S. flexneri and sepA, and increased virulence and suggest a link to socioeconomic change in northeastern Brazil. Additionally, antimicrobial resistance was associated with serogroup specificity in Shigella spp. and increased bacterial VRGs.  相似文献   

20.
目的研究护理干预对面部中重度寻常型痤疮的临床疗效影响。方法选取本院在2014年4月~2016年7月诊治的136例面部中重度寻常型痤疮患者,随机分为研究组与对照组,每组68例;所有患者均依据其情况给予对应的治疗,其中对照组在治疗期间给予常规护理,研究组在对照组的基础上再给予综合性护理干预,比较两组的治疗效果及护理满意度情况等。结果患者在接受治疗和护理后,研究组中度与重度患者的治疗效果较对照组均明显提高(P0.05),研究组护理满意度较对照组明显增高(P0.05)。结论对面部中重度寻常型痤疮患者在其治疗期间给予综合性护理干预,具有良好的效果。  相似文献   

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