Cost-Effectiveness of Antibiotic Prophylaxis Strategies for Transrectal Prostate Biopsy in an Era of Increasing Antimicrobial Resistance

Objectives

To determine the optimal antibiotic prophylaxis strategy for transrectal prostate biopsy (TRPB) as a function of the local antibiotic resistance profile.

菌血症患儿血培养放射根瘤菌基因型与药敏分析

目的了解菌血症患儿血培养放射根瘤菌的基因型及药敏情况。方法收集2013年2月—2014年2月某2所医院全部菌血症患儿血培养的放射根瘤菌,应用聚合酶链反应(PCR)扩增其16S rDNA片段,采用脉冲场凝胶电泳(PFGE)鉴定细菌基因型,以及K-B法做药敏试验。结果 12例血培养阳性患儿共检出13株放射根瘤菌,包括3种基因型;其16S r DNA序列与放射根瘤菌IFM10623株同源性达99%。依据临床和实验室标准化协会(CLSI)2013铜绿假单胞菌药敏标准,13株菌对头孢他啶、哌拉西林、替卡西林、哌拉西林/他唑巴坦、替卡西林/克拉维酸、氨曲南与多粘菌素B耐药;而对头孢吡肟、多尼培南、亚胺培南、美罗培南、妥布霉素、奈替米星、环丙沙星、左氧氟沙星和诺氟沙星敏感。此外,13株菌对头孢噻肟和头孢曲松有较大的抑菌圈。结论临床需根据药敏试验结果,选择药物治疗放射根瘤菌感染;其中头孢噻肟和头孢曲松是治疗患儿放射根瘤菌感染的较好选择。     

Increasing antimicrobial resistance of Vibrio cholerae OI biotype E1 tor strains isolated in a tertiary-care centre in India

The antimicrobial susceptibility patterns are on constant change with the recent emergence of multidrug-resistant strains of most bacteria. Results of recent studies in India showed that most isolates of Vibrio cholerae O1 were resistant to the commonly-used antibiotics. The study was conducted to determine the antibiotic susceptibility patterns of V. cholerae O1 isolated during 2008-2010 at the hospital of the Jawaharlal Nehru Institute of Post Graduate Medical Education and Research, Puducherry, India. In total, 154 strains of V. cholerae O1 from 2,658 stool specimens were reported during January 2008-December 2010--34 in 2008, 2 in 2009, and 118 in 2010. The isolates of V. cholerae O1 were subjected to antimicrobial susceptibility testing using the Kirby-Bauer method. The antibiotic disks tested were tetracycline (30 microg), furazolidone (100 microg), ampicillin (10 microg), ceftriaxone (30 microg), and ciprofloxacin (5 microg). Escherichia coli ATCC 25922 was used as the control organism. The minimum inhibitory concentrations (MICs) of ceftriaxone, ciprofloxacin, and tetracycline were determined using the agar dilution method for all the strains. The E-test method was used for the strains which had either intermediate resistance or were resistant to the antibiotics by the agar dilution method. The results of the agar dilution corroborated the results of the E-test. The MIC of ceftriaxone in 151 strains was <2 microg/mL while it was 16 microg/mL in three strains; the latter three strains were resistant to ceftriaxone by the disc-diffusion test. The MIC of ciprofloxacin in 150 strains was <0.5 microg/mL while the MIC of tetracycline was <1 microg/mL. In the remaining four strains, the MIC of tetracycline was >32 microg/mL, and the MIC of ciprofloxacin was >8 microg/mL. These four strains were resistant to both tetracycline and ciprofloxacin by the disc-diffusion test and were exclusive of the three ceftriaxone-resistant strains. The majority of the isolates were obtained from children aged 0-5 year(s)-70.3% (83 of 118) and 41.2% (14 of 34) were reported in 2010 and 2008 respectively. Since treating severe cases of cholera with antibiotics is important, the continuing spread of resistance in V. cholerae to the most important agents of therapy is a matter of concern. Also, chemoprophylaxis with antimicrobial agents is likely to become even more difficult.     

427株黏质沙雷菌临床分布及耐药性

目的了解临床分离的黏质沙雷菌临床分布及耐药情况,为临床合理使用抗菌药物、预防和控制感染提供依据。方法对某院2012年1月1日—2015年12月31日临床分离的427株黏质沙雷菌进行分析,采用纸片扩散法检测其对常用抗菌药物的敏感性。结果427株黏质沙雷菌标本来源以呼吸道为主（70.26%）,主要为痰（64.87%）;科室分布主要为重症监护病房（ICU,19.44%）,其次为中西医结合科（15.46%）和康复科（13.58%）。黏质沙雷菌对头孢哌酮/舒巴坦、厄他培南、头孢吡肟、头孢他啶、阿米卡星、亚胺培南、左氧氟沙星和哌拉西林/他唑巴坦的耐药率均＜10%;对环丙沙星、庆大霉素、妥布霉素、头孢曲松、复方磺胺甲口恶唑和氨曲南的耐药率为10%~30%。4年间耐药率变化有统计学意义（P＜0.05）的有头孢哌酮/舒巴坦、环丙沙星、头孢曲松、阿米卡星、氨曲南和复方磺胺甲口恶唑;2012—2013年黏质沙雷菌对头孢哌酮/舒巴坦、环丙沙星、头孢曲松、氨曲南和复方磺胺甲口恶唑耐药率明显增加,之后耐药率趋于平稳;对头孢哌酮/舒巴坦则耐药性降低。结论黏质沙雷菌对大部分常用抗菌药物的敏感性较好,但耐药性有增加的趋势;其中厄他培南、头孢他啶、左氧氟沙星和哌拉西林/他唑巴坦敏感率高,可作为临床治疗相关感染的经验用药。     

女性泌尿生殖道感染解脲脲支原体的耐药现状

目的 探讨女性泌尿生殖道感染解脲脲支原体(Uu)的耐药现状,为临床医师抗感染治疗提供用药依据.方法 采用珠海迪尔生物工程有限公司生产的支原体培养药敏试剂盒对833例女性泌尿生殖道感染患者进行Uu培养和药敏试验.结果 Uu检测阳性率为52.9％;对Uu敏感率＞70.0％的抗菌药物有四环素、交沙霉素、多西环素、米诺环素、克拉霉素;面对氟喹诺酮类抗菌药物环丙沙星、氧氟沙星敏感率最低,分别为9.3％和15.6％.结论 临床医师应加强对Uu的耐药性监测,按照药敏试验结果合理选用抗菌药物,以提高Uu感染的临床治愈率.     

医院感染铜绿假单胞菌的耐药性变迁及临床对策

目的 探讨铜绿假单胞菌(PAE)医院感染的耐药性及其变迁,为临床合理用药提供依据.方法 对医院2008年1月-2010年12月住院患者各种标本中分离到的铜绿假单胞菌175株,采用13种抗菌药物进行药敏试验.结果 痰液中PAE检出率最高占65.7％,其次是脓液标本占17.1％,尿液标本占10.3％;PAE对头孢他啶、头孢吡肟、环丙沙星、左氧氟沙星耐药率均＜20.0％,对头孢噻肟、头孢曲松的耐药率均＞40.0％,最敏感的是阿米卡星、妥布霉素,对亚胺培南/西司他丁的耐药率为21.3％.结论 医院感染铜绿假单胞菌的临床检出率呈逐年上升趋势,且对多种抗菌药物具有耐药性,临床抗感染治疗应根据体外药敏试验结果选用抗菌药物.     

Prevalence of Neisseria Gonorrhea and Their Antimicrobial Susceptibility Patterns Among Symptomatic Women Attending Gynecology Outpatient Department in Hawassa Referral Hospital,Hawassa, Ethiopia

Background

gonorrhoeae, a sexually transmitted disease caused by Neisseria gonorrhea for which humans are the only natural host. The causative organism is highly adapted to the genital tract and often causing asymptomatic and undetected infection in females in which Acquisition of gonococcal infection late in pregnancy can adversely affect labor and delivery as well as the well-being of the fetus. The aims of this study were to determine the prevalence and drug susceptibility pattern of Neisseria gonorrhea among symptomatic women in Hawassa Referral Hospital.

Methods

A cross-sectional study was conducted from December 1 2010 to February 30, 2011 at Hawassa Referral Hospital. All women who visited gynecology outpatient department (OPD) with suspected gonococcal infection were included. Endocervical swab was collected by the attending physician. The presence of gonorrhea was confirmed by culture, gram staining and biochemical tests. Antimicrobial sensitivity test was performed using disc diffusion method and the result was interpreted accordingly.

Results

Of the total 215 cases examined, 11 (5.1%) were confirmed to have gonococcal infection. Although not statistically significant, most of the cases 5/11 (45.5%) were in age group of 20–24 years and the identified organism had low level susceptibility to quinolones (ciprofloxacin 55%, ofloxacin 64% & lomefloxacin 64%).

Conclusion

Despite low rates of gonorrhea infection, it is important to focus on high-risk populations (reproductive age group) because of the great physical and emotional costs of the disease. A high resistance for quinolones, the commonly used antibiotics was observed for this laboratory-based diagnosis is recommended.     

199株淋球菌对环丙沙星和头孢三嗪的敏感性测定

目的 了解南宁地区淋球菌对环丙沙星,头孢三嗪的敏感性。方法 采用琼脂稀释法分别测定环丙沙星、头孢三嗪对199株淋球菌的最小抑菌浓度。结果 环丙沙星MIC范围为0．002－2mg/L,其中1999年MIC范围为0．25－≥16mg/L;14．5％菌株对环丙沙星敏感,41．71％为低度敏感,43．72％为耐药,其中1999年有4株淋球菌MIC≥16mg/L。头孢三嗪MIC为0．02－1mg/L,MIC50为0．03mg/L,MIC90为0．5mg/L;55.28％菌株对头孢三嗪敏感,39.20%为低度敏感,5．53％为耐药。其中,1999年末发现耐药菌株。结论 南宁地区已经不能把环丙沙星作为治疗淋病患者的首选药物;头孢三嗪是否仍能作为治疗淋病的一线药物,尚需进一步研究。     

奇异变形菌医院感染的耐药性变迁及临床对策

目的 分析临床分离的奇异变形菌的耐药性及其变迁,为临床合理用药提供依据.方法 对医院2008年1月-2010年12月住院患者各种标本中分离到的奇异变形菌385株,采用17种抗菌药物进行药敏试验;并比较3年的变迁情况.结果 分离到的奇异变形菌对亚胺培南/西司他丁的敏感率最高为100.0％,对美罗培南、哌拉西林/他巴唑、氨曲南、头孢曲松、头孢匹美、头孢他啶、妥布霉素的敏感率均＞90.0％;对呋喃妥因、磺胺甲噁唑/甲氧苄啶的耐药率均＞50.0％,头孢哌酮/舒巴坦为0.3％,对氨苄西林/舒巴坦、环丙沙星、左氧氟沙星耐药率呈升高趋势.结论 医院感染奇异变形菌分离率较高,对多种抗菌药物具有较高敏感性,但对某些抗菌药物耐药率呈上升趋势,应加强监测,根据药敏试验合理选用抗菌药物.     

Increasing spectrum in antimicrobial resistance of Shigella isolates in Bangladesh: resistance to azithromycin and ceftriaxone and decreased susceptibility to ciprofloxacin

Antimicrobial resistance of Shigella isolates in Bangladesh, during 2001-2002, was studied and compared with that of 1991-1992 to identify the changes in resistance patterns and trends. A significant increase in resistance to trimethoprim-sulphamethoxazole (from 52% to 72%, p < 0.01) and nalidixic acid (from 19% to 51%, p < 0.01) was detected. High, but unchanged, resistance to tetracycline, ampicillin, and chloramphenicol, low resistance to mecillinam (resistance 3%, intermediate 3%), and to emergence of resistance to azithromycin (resistance 16%, intermediate 62%) and ceftriaxone/cefixime (2%) were detected in 2001-2002. Of 266 recent isolates, 63% were resistant to > or =3 anti-Shigella drugs (multidrug-resistant [MDR]) compared to 52% of 369 strains (p < 0.007) in 1991-1992. Of 154 isolates tested by E-test in 2001-2002, 71% were nalidixic acid-resistant (minimum inhibitory concentration [MIC] > or =32 microg/mL) and had 10-fold higher MIC90 (0.25 microg/mL) to ciprofloxacin than that of nalidixic acid-susceptible strains exhibiting decreased ciprofloxacin susceptibility, which were detected as ciprofloxacin-susceptible and nalidixic acid-resistant by the disc-diffusion method. These strains were frequently associated with MDR traits. High modal MICs were observed to azithromycin (MIC 6 microg/mL) and nalidixic acid (MIC 128 micdrog/mL) and low to ceftriaxone (MIC 0.023 microg/mL). Conjugative R-plasmids-encoded extended-spectrum beta-lactamase was responsible for resistance to ceftriaxone/cefixime. The growing antimicrobial resistance of Shigella is worrying and mandates monitoring of resistance. Pivmecillinam or ciprofloxacin might be considered for treating shigellosis with caution.     

老年患者肺部感染铜绿假单胞菌的耐药性探讨

目的 探讨老年患者肺部感染铜绿假单胞菌(PAE)的耐药性,为临床预防及控制感染提供科学依据.方法 细菌培养鉴定按照《全国临床检验操作规程》进行;药物敏感试验和结果判断采用CLSI推荐的K-B法进行.结果 142株老年肺部感染PAE,对常用抗菌药物产生了多药耐药性,甚至对碳青霉烯类抗菌药物亚胺培南和美罗培南产生了3.5％的耐药率;对氨曲南、头孢噻肟、左氧氟沙星、环丙沙星耐药率均＞50.0％,对庆大霉素、头孢吡肟、头孢曲松耐药率均＞40.0％;而对头孢哌酮/舒巴坦、哌拉西林/他唑巴坦、阿米卡星等抗菌药物敏感率较高为79.6％～86.6％.结论 医院老年患者肺部感染PAE耐药性已十分严峻,应采取综合性预防与控制措施,遏制PAE耐药性逐年上升的趋势.     

Factors Related to Increasing Prevalence of Resistance to Ciprofloxacin and Other Antimicrobial Drugs in Neisseria gonorrhoeae, United States

Using data from the Gonococcal Isolate Surveillance Project, we studied changes in ciprofloxacin resistance in Neisseria gonorrhoeae isolates in the United States during 2002-2007. Compared with prevalence in heterosexual men, prevalence of ciprofloxacin-resistant N. gonorrhoeae infections showed a more pronounced increase in men who have sex with men (MSM), particularly through an increase in prevalence of strains also resistant to tetracycline and penicillin. Moreover, that multidrug resistance profile among MSM was negatively associated with recent travel. Across the surveillance project sites, first appearance of ciprofloxacin resistance in heterosexual men was positively correlated with such resistance for MSM. The increase in prevalence of ciprofloxacin resistance may have been facilitated by use of fluoroquinolones for treating gonorrhea and other conditions. The prominence of multidrug resistance suggests that using other classes of antimicrobial drugs for purposes other than treating gonorrhea helped increase the prevalence of ciprofloxacin-resistant strains that are also resistant to those drugs.     

Emergence of multidrug-resistant Salmonella enterica serotype Typhi with decreased ciprofloxacin susceptibility in Bangladesh

During 1989-2002, we studied the antimicrobial resistance of 3928 blood culture isolates of Salmonella enterica serotype Typhi (S. Typhi) in Dhaka, Bangladesh. Overall 32% (1270) of the strains were multidrug-resistant (MDR, resistant to chloramphenicol, ampicillin and trimethoprim-sulphamethoxazole); first detected in 1990 (rate of 8%), increased in 1994 (44%), declined in 1996 (22%, P<0.01 compared to 1994) and re-emerged in 2001 (36%) and 2002 (42%, P<0.01 compared to 1996). An increased MIC of ciprofloxacin (0.25 microg/ml) indicating decreased susceptibility to ciprofloxacin was detected in 24 (18.2%) out of 132 randomly selected strains during 1990-2002; more frequently in MDR than susceptible strains (46.3% vs. 5.5%, P<0.001), and the proportion of them rose to 47% in 2002 from 8% in 2000 (P<0.01). Ciprofloxacin (5 microg) disk diffusion zone diameters of < or =24 mm as break-point had 98% sensitivity and 100% specificity when compared with a ciprofloxacin MIC of 0.25 microg/ml as break-point for decreased susceptibility; being a useful and easy screen test. All strains were susceptible to ceftriaxone. The emergence of MDR S. Typhi with decreased ciprofloxacin susceptibility will further complicate the therapy of typhoid fever because of the lack of optimum treatment guidelines.     

235株血流感染大肠埃希菌耐药性分析

目的分析某院血流感染患者标本分离的大肠埃希菌耐药性,为临床合理应用抗菌药物提供依据。方法采用BacT/Alert全自动血培养仪、VITEK2细菌鉴定仪对患者血标本进行培养、鉴定;K-B药敏纸片测定法进行药敏试验并筛选出产超广谱β-内酰胺酶(ESBLs)细菌。结果 2009—2011年共分离血流感染大肠埃希菌235株,ESBLs阳性90株,阳性率38.30%。产ESBLs菌株对氨苄西林、头孢噻肟、头孢曲松100%耐药;对亚胺培南/西司他丁、美罗培南敏感率均为100%,对头孢美唑、阿米卡星敏感率90%。非产ESBLs菌株耐药率最高的是氨苄西林,达70.63%;对亚胺培南/西司他丁、美罗培南敏感率均为100%,对阿米卡星、头孢噻肟、头孢美唑敏感率95%。产ESBLs菌株的耐药率均明显高于非产ESBLs菌株。在含有β-内酰胺酶抑制剂的复合抗菌药物中,只有头孢哌酮/舒巴坦对产ESBLs大肠埃希菌的敏感率90%,哌拉西林/他唑巴坦和替卡西林/克拉维酸的敏感率均未超过80%。结论血流感染大肠埃希菌产ESBLs株的耐药性较高,临床用药应根据患者感染菌的耐药情况制定合理的个体化治疗措施。     

Monitoring antimicrobial susceptibility of Neisseria gonorrhoeae isolated from Bangladesh during 1997-2006: emergence and pattern of drug-resistant isolates

Gonorrhoea is one of the most common sexually transmitted infections (STIs) in developing countries, and the emergence of resistance to antimicrobial agents in Neisseria gonorrhoeae is a major obstacle in the control of gonorrhoea. Periodical monitoring of antimicrobial susceptibility of N. gonorrhoeae is essential for the early detection of emergence of drug resistance. In total, 1,767 gonococcal strains isolated from males and females (general population and those with high-risk behaviour) from different parts of Bangladesh were studied during 1997-2006. Minimum inhibitory concentrations of penicillin, tetracycline, ciprofloxacin, ceftriaxone, spectinomycin, and azithromycin for the isolates were determined by the agar dilution method. Isolates resistant to three or more antimicrobial agents are considered multidrug-resistant. The prevalence of plasmid-mediated penicillinase-producing N. gonorrhoeae (PPNG) and plasmid-mediated tetracycline-resistant N. gonorrhoeae (TRNG) was determined. Nine percent of the isolates were resistant to ciprofloxacin in 1997 compared to 87% in 2006. Multidrug-resistant N. gonorrhoeae have emerged in 1997, and 44% of the strains (n = 66) isolated during 2006 were multidrug-resistant. Forty-two percent of the isolates in 2006 were both PPNG- and TRNG-positive compared to none in 1997. The rapidly-changing pattern of gonococcal antimicrobial susceptibility warrants the need for an antimicrobial susceptibility-monitoring programme, and periodical analysis and dissemination of susceptibility data are essential to guide clinicians and for successful STI/HIV intervention programmes.     

珠海地区淋球菌耐药性监测及耐药质粒分型

目的 监测珠海地区2015-2016年淋球菌临床分离株对常用抗菌药物的敏感性,了解质粒介导的TEM-1和tetM基因分子流行情况.方法 用琼脂稀释法测定淋球菌对7种抗菌药物(青霉素、四环素、环丙沙星、头孢克肟、大观霉素和阿奇霉素)的最低抑菌浓度(MIC).采用纸片酸度法测定产青霉素酶淋球菌(PPNG),PCR方法分别扩增TIEM-1和tetM耐药质粒基因片段,电泳分析其耐药质粒型别.结果 93株淋球菌中检出PPNG共26株(27.96％)、耐四环素淋球菌(TRNG)24株(25.81％).93株淋球菌对青霉素、四环素、环丙沙星、阿奇霉素的耐药率分别40.86％、75.27％、100.00％、7.53％,青霉素低敏率为51.61％;未发现对大观霉素、头孢曲松、头孢克肟耐药菌株,但对头孢克肟的低敏率达到30.11％.耐药质粒分型结果PPNG亚洲型15株(57.69％),非洲型11株(42.31％),未检出多伦多/里约型;TRNG荷兰型23株(95.83％),美国型1株(4.17％).结论 珠海地区淋球菌对四环素、环丙沙星、青霉素耐药率较高,但对头孢曲松和大观霉素敏感率高,可作为治疗淋病的首选药物;PPNG以亚洲型和非洲型为主,TRNG以荷兰型为主,偶见美国型.     

Antimicrobial susceptibility patterns of Salmonella enterica serotype typhi in eastern Nepal

The aim of the present study was to evaluate antimicrobial susceptibility patterns with special reference to multidrug resistance, susceptibility to ciprofloxacin, and bacteriophage typing of Salmonella enterica serotype Typhi isolated from blood sent for culture in a tertiary-care teaching hospital in eastern Nepal during January 2000-December 2004. In total, 132 strains of S. enterica Typhi, isolated from 2,568 blood culture samples collected from cases of suspected enteric fever, were tested for susceptibility to commonly-used antimicrobials by the disc-diffusion method. There were 35 multidrug-resistant strains. None of the isolates were resistant to ciprofloxacin. Of 52 isolates tested for minimum inhibitory concentration (MIC) of ciprofloxacin, 36 (69.23%) showed reduced susceptibility (MIC >0.25 mg/L). Of 112 strains tested for nalidixic acid susceptibility, 86 (76%) were resistant. Strains with reduced susceptibility to ciprofloxacin and resistance to nalidixic acid could be correlated. The commonest phage type was El. Nalidixic acid susceptibility could be a useful screening test for the detection of decreased susceptibility of S. Typhi to ciprofloxacin, a drug which is commonly used even for minor ailments in this area.     

Fluoroquinolone resistance in Neisseria gonorrhoeae.

Fluoroquinolones and broad-spectrum cephalosporins are the most effective antimicrobial agents for the treatment of gonorrhea. However, clinically significant resistance to fluoroquinolones has emerged in Neisseria gonorrhoeae. Fluoroquinolone-resistant strains account for approximately 10% of all gonococcal strains in Hong Kong and the Republic of the Philippines. As many as 50% of strains from some Far Eastern countries exhibit decreased susceptibility (intermediate resistance) to fluoroquinolones. Strains with intermediate resistance and clinically significant resistance are being isolated sporadically in North America, where resistant strains have been associated with an outbreak and with failure of infections to respond to treatment with doses of ciprofloxacin and ofloxacin recommended by the Centers for Disease Control and Prevention; strains exhibiting decreased susceptibility to these agents are endemic in at least one metropolitan area. Monitoring for fluoroquinolone resistance is now critical for ensuring adequate treatment of infections with resistant strains and for maximizing the time during which fluoroquinolones may be used to treat gonorrhea.     

儿童下呼吸道肺炎链球菌感染临床特征及耐药性

目的分析南京地区下呼吸道肺炎链球菌（SP）感染患儿的临床特征及耐药性。方法回顾性分析2013年7月—2014年6月南京某儿童医院经痰培养确诊为下呼吸道SP感染的患儿临床资料,对菌株进行药物敏感试验和最低抑菌浓度（MIC）检测。结果197例SP感染患儿,＜3岁者占72.59%,秋冬季发病者占63.96%,外周血白细胞升高者占57.87％,临床表现以咳嗽、发热多见,呼吸系统外并发症以消化系统和循环系统多见。SP对阿奇霉素、青霉素及红霉素耐药率分别为94.92%、92.89%、88.83%;对万古霉素、氯霉素、美罗培南、头孢曲松、氧氟沙星敏感率均＞90%,其中对万古霉素敏感率高达98.98%。结论下呼吸道SP感染患儿以3岁内婴幼儿所占比例高,秋冬季节发病多见,对阿奇霉素、青霉素和红霉素耐药率高,临床上应根据药敏结果选择用药。     

社区获得性耐甲氧西林金黄色葡萄球菌SCCmec基因分型及药敏结果

目的了解某院门诊和住院患者标本分离的社区获得性耐甲氧西林金黄色葡萄球菌（CA MRSA）盒式染色体基因（SCCmec）型别以及CA MRSA耐药性。方法收集该院2011年5月—2015年8月分离的MRSA及其相关病史资料,利用聚合酶链反应（PCR）方法进行MRSA的mecA基因和CA MRSA的SCCmec基因分型检测,对CA MRSA进行药物敏感性试验并进行统计分析。结果共收集MRSA 305株,其中mecA阳性296株。CA MRSA 88株,占29.73%（88/296）,其中48株为SCCmecⅣ型,36株为SCCmecⅤ型,4株未定型。药敏试验显示,CA MRSA对万古霉素、利奈唑胺、替加环素均100%敏感,对青霉素和苯唑西林100%耐药;SCCmecⅣ和Ⅴ型CA MRSA对左氧氟沙星、利福平、环丙沙星的耐药率比较,差异均有统计学意义（均P<0.05）。SCCmec Ⅳ、Ⅴ型CA MRSA对氨苄西林/舒巴坦、呋喃妥因、红霉素的耐药率均>58%。结论该院CA MRSA的SCCmec分型以Ⅳ和Ⅴ型为主,且耐药率较高,临床医生应对此高度重视,根据药敏结果合理应用抗菌药物。