1.Surveillance of bacterial resistance in Liuzhou Workers'Hospital,Guangxi from 2020 to 2022
Mengwei LI ; Liuhua WEI ; Guolan LUO ; Hongzhen ZHU ; Shengzhang LIN ; Likun CHEN ; Lijun JIANG ; Haixia WANG
Chinese Journal of Infection and Chemotherapy 2025;25(2):195-202
Objective To understand the changing profiles of antimicrobial susceptibility of the bacterial strains isolated from patients at Liuzhou Workers'Hospital in Guangxi from 2020 to 2022.Methods The bacteria were isolated,identified,and underwent antimicrobial susceptibility testing using VITEK 2 Compact,disk diffusion method,or E-test.The results were interpreted according to the breakpoints recommended by CLSI M100 32nd Edition in 2022.The data were analyzed using WHONET 5.6 software.Results A total of 26 254 nonduplicate strains were collected from 2020 to 2022,including Gram-positive bacteria(27.9%)and gram-negative bacteria(72.1%).The prevalence of methicillin-resistant strains was 20.0%in SS.aureus(MRSA),and 72.2%in coagulase-negative Staphylococcus(MRCNS).Methicillin-resistant staphylococcal strains were more resistant to most antimicrobial agents than methicillin-susceptible strains(MSSA and MSCNS).None of the staphylococcal strains was resistant to vancomycin,linezolid or tigecycline.Enterococcus faecium strains showed higher resistance rates to most antimicrobial agents than Enterococcus faecalis.None of enterococcal strains was resistant to vancomycin.A few enterococcal strains were resistant to linezolid.Overall,691 strains of the non-meningitis Streptococcus pneumoniae were isolated from children and 123 strains were isolated from adults.The prevalence of penicillin-resistant SS.pneumoniae(PRSP)was 0.4%in the strains from children and 1.6%in the strains from adults.None of S.pneumoniae strains was intermediate to penicillin.The prevalence of carbapenem-resistant Klebsiella pneumoniae(CRKpn)was 1.2%,1.2%,and 13.8%in 2020,2021,and 2022,respectively.The prevalence of carbapenem-resistant P.aeruginosa(CRPae)and carbapenem-resistant Acinetobacter baumannii(CRAba)was 10.7%and 68.4%in 2020,17.5%and 75.2%in 2021,14.3%and 77.3%in 2022,respectively.About 84.6%of the 1 269 strains of Haemophilus influenzae were isolated from children and 15.4%isolated from adults.The prevalence of beta-lactamase-producing strains was 39.4%in the isolates from children and 46.8%in the isolates from adults.The β-lactamase-producing H.influenzae was resistant to ampicillin.Furthermore,some β-lactamase-nonproducing ampicillin-resistant(BLNAR)H.influenzae strains(27.0%)were also identified.Conclusions Antimicrobial resistance is still serious in this hospital,especially high prevalence of carbapenem-resistant organisms(CRO).Hospital infection prevention and control measures,antibiotic stewardship,and proactive CRO screening should be strengthened.More clinical specimens should be collected for suspected infections.Antimicrobial treatment should be prescribed empirically in time and adjusted when the results of antimicrobial susceptibility testing are available.
2.Surveillance of bacterial resistance in Liuzhou Workers'Hospital,Guangxi from 2020 to 2022
Mengwei LI ; Liuhua WEI ; Guolan LUO ; Hongzhen ZHU ; Shengzhang LIN ; Likun CHEN ; Lijun JIANG ; Haixia WANG
Chinese Journal of Infection and Chemotherapy 2025;25(2):195-202
Objective To understand the changing profiles of antimicrobial susceptibility of the bacterial strains isolated from patients at Liuzhou Workers'Hospital in Guangxi from 2020 to 2022.Methods The bacteria were isolated,identified,and underwent antimicrobial susceptibility testing using VITEK 2 Compact,disk diffusion method,or E-test.The results were interpreted according to the breakpoints recommended by CLSI M100 32nd Edition in 2022.The data were analyzed using WHONET 5.6 software.Results A total of 26 254 nonduplicate strains were collected from 2020 to 2022,including Gram-positive bacteria(27.9%)and gram-negative bacteria(72.1%).The prevalence of methicillin-resistant strains was 20.0%in SS.aureus(MRSA),and 72.2%in coagulase-negative Staphylococcus(MRCNS).Methicillin-resistant staphylococcal strains were more resistant to most antimicrobial agents than methicillin-susceptible strains(MSSA and MSCNS).None of the staphylococcal strains was resistant to vancomycin,linezolid or tigecycline.Enterococcus faecium strains showed higher resistance rates to most antimicrobial agents than Enterococcus faecalis.None of enterococcal strains was resistant to vancomycin.A few enterococcal strains were resistant to linezolid.Overall,691 strains of the non-meningitis Streptococcus pneumoniae were isolated from children and 123 strains were isolated from adults.The prevalence of penicillin-resistant SS.pneumoniae(PRSP)was 0.4%in the strains from children and 1.6%in the strains from adults.None of S.pneumoniae strains was intermediate to penicillin.The prevalence of carbapenem-resistant Klebsiella pneumoniae(CRKpn)was 1.2%,1.2%,and 13.8%in 2020,2021,and 2022,respectively.The prevalence of carbapenem-resistant P.aeruginosa(CRPae)and carbapenem-resistant Acinetobacter baumannii(CRAba)was 10.7%and 68.4%in 2020,17.5%and 75.2%in 2021,14.3%and 77.3%in 2022,respectively.About 84.6%of the 1 269 strains of Haemophilus influenzae were isolated from children and 15.4%isolated from adults.The prevalence of beta-lactamase-producing strains was 39.4%in the isolates from children and 46.8%in the isolates from adults.The β-lactamase-producing H.influenzae was resistant to ampicillin.Furthermore,some β-lactamase-nonproducing ampicillin-resistant(BLNAR)H.influenzae strains(27.0%)were also identified.Conclusions Antimicrobial resistance is still serious in this hospital,especially high prevalence of carbapenem-resistant organisms(CRO).Hospital infection prevention and control measures,antibiotic stewardship,and proactive CRO screening should be strengthened.More clinical specimens should be collected for suspected infections.Antimicrobial treatment should be prescribed empirically in time and adjusted when the results of antimicrobial susceptibility testing are available.
3.Clinical Analysis of Liquid-based Cervical Cytology Examination in Cervical Cancer Screening in the South of GuiZhou
Shengzhang ZHU ; Liming WANG ; Tao WEI ; Qin HUANG ; Yuexin HU ; Shanshan LI
Journal of Kunming Medical University 2016;37(8):127-130
Objectives To enhance the diagnosis of cervical epithelial neoplasia and cervical cancer at the early stage and to prevent cervical invasive carcinoma by analyzing the cervical/vaginal cytology or histopathologic results of Atypical squamous cells of undetermined significance (ASCUS).Methods From January 2014 to June 2015,a total of 4579 cases were selected in the census of gynecological diseases in Qiannan Hospital.TBS classification (the bethesda system) showed that 164 cases of ASCUS or above were found using cervical/vaginal cytology with live tissue under colposcopy.Results Among 164 cases,75 was cervical intraepithelial neoplasia level 3 (CINⅢ) accounting for 54.7%.Sixty-three cases of ASCUS and 16 of CINⅡ or above were found among patients at the age of 39 or younger (25.4%).A hundred and one cases of ASCUS and 59 of CINⅡ or above were found among women older than 40 (58.41%).Among patients with liquid-based cervical cytology positive,those older than 40 had higher risk.Liquid-based cervical cytology examination was divided into 5 levels.Spearman rank correlation analysis was applied with correlation coefficient (r =1) and positive correlation was shown (P =0.000,P<0.01).The difference was statistically significant.The higher level of liquid-based cervical cytology examination level was required,the higher risk of cervical cancer was seen among women.Corclusion The use of liquid-based cervical cytology examination can help grassroots doctors improve CIN diagnosis rate and prevent cervical invasive carcinoma among women in the countryside.

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