1.Expert Consensus on Clinical Application of Pingxuan Capsules
Yuer HU ; Yanming XIE ; Yaming LIN ; Yuanqi ZHAO ; Yihuai ZOU ; Mingquan LI ; Xiaoming SHEN ; Wei PENG ; Changkuan FU ; Yuanyuan LI
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(1):201-210
As a patented characteristic medicine of Yi ethnic minority, Pingxuan capsules have the effects of nourishing the liver and kidney, pacifying the liver, and subduing Yang. With the main indications of dizziness, headache, palpitations, tinnitus, insomnia, dreaminess, waist and knee soreness caused by liver-kidney deficiency and liver Yang upward disturbance, Pingxuan capsules are widely used in the treatment of posterior circulation ischemic vertigo, vestibular migraine, benign paroxysmal positional vertigo. However, the current knowledge is limited regarding the efficacy, syndrome differentiation, and safety of this medicine. On the basis of summarizing the experience of clinicians and the existing evidence, this study invites clinical experts of traditional Chinese and Western medicine, pharmaceutical experts, and methodological experts from relevant fields across China to conduct evidence-based evaluation of Pingxuan capsules. The evaluation follows the Specifications for the Development of Clinical Expert Consensus on Chinese Patent Medicines issued by the Standardization Office of the China Association of Chinese Medicine, and reaches 5 recommendations and 16 consensus suggestions. The consensus clarifies the clinical applications, efficacy, dose, course of treatment, combination of medicines, precautions, and contraindications of Pingxuan capsules in the treatment of vertigo and explains the safety of clinical application. This consensus is applicable to clinicians (traditional Chinese medicine, Western medicine, and integrated traditional Chinese and Western medicine) and pharmacists in tertiary hospitals, secondary hospitals, and community-level medical and health institutions across China, providing a reference for the rational use of Pingxuan capsules in the treatment of vertigo. It is hoped that the promotion of this consensus can facilitate the rational use of drugs in clinical practice, reduce the risk of drug use, and give full play to the advantages of Pingxuan capsules in the treatment of vertigo diseases. This consensus has been reviewed and published by the China Association of Chinese Medicine, with the number GS/CACM330-2023.
2.Analysis of national external quality assessment results for transfusion compatibility test, 2018 to 2023
Junhua HU ; Peng ZHANG ; Jiali LIU ; Zhiguo WANG ; Yanming LIU ; Shengchen TIAN ; Wanru MA ; Xiang LI ; Xuebin ZHAO ; Feng XUE ; Yuntian WANG ; Dong LIN ; Zheng SUN ; Jiwu GONG ; Lin ZHOU
Chinese Journal of Blood Transfusion 2025;38(12):1720-1727
Objective: To analyze the results of national external quality assessment (EQA) for transfusion compatibility test from 2018 to 2023, with the aim of providing references for improving laboratory testing quality and ensuring the safety of clinical blood transfusion. Methods: Three EQA programs were conducted annually, each distributing 22 quality assessment samples. Participating transfusion laboratories were required to complete testing within specified deadlines and to submit results along with documentation of testing methodologies, reagents, and equipment used. National Center for Clinical Laboratories (NCCL) conducted statistical analysis of laboratory results, evaluated testing outcomes and related circumstances, and provided feedback to participating laboratories. EQA data from transfusion laboratories across China from 2018 to 2023 were collected and systematically analyzed. Results: From 2018 to 2023, the qualification rates for all five items (ABO forward typing, ABO reverse typing, Rh blood group typing, antibody screening, and cross-matching) were 67.59%, 77.11%, 77.38%, 72.78%, 79.96%, and 85.16%, respectively. The mean qualification rates for ABO forward typing, ABO reverse typing, RhD blood group typing, antibody screening, and cross-matching over the past six years were 96.25%±0.59%, 90.45%±4.52%, 96.05%±0.71%, 90.88%±2.86%, and 88.34%±3.48%, respectively. The qualification rates in 2019, 2020, 2022, and 2023 all showed a stable trend of "blood stations>tertiary hospitals>secondary hospitals". The mean qualification rate of laboratories in secondary hospitals from 2018 to 2023 was significantly lower than those of laboratories in tertiary hospitals and blood stations (P<0.05), while no significant difference was observed between laboratories in tertiary hospitals and blood stations (P>0.05). The micro column agglutination method was the most widely used in all five tests. In the four test items, namely ABO forward typing, ABO reverse typing, antibody screening, and cross-matching, there was a statistically significant difference in the qualification rate of micro column agglutination method compared to other methods (P<0.05). There was a statistical difference in the qualification rate between manual and automated detection using micro column agglutination method in the cross-matching tests (P<0.05), whereas no significant difference was noted for the other test items (P>0.05). Conclusion: From 2018 to 2023, the number of laboratories participating in EQA activities has been increasing year by year, and the qualification rate has shown an overall upward trend. The type of laboratory is a key factor affecting the qualification rate, and the testing capabilities of some laboratories still need to be improved. The micro column agglutination method is widely used in transfusion compatibility tests. The established EQA program effectively monitors quality issues in laboratories, drives continuous improvement, and ensures sustained enhancement of testing standards to safeguard clinical blood safety.
3.Comprehensive Clinical Evaluation of Duliang Soft Capsules in Treatment of Migraine with Wind-cold Blood Stasis Syndrome
Xiaoxiao ZHAO ; Xuming ZHANG ; Junyu XI ; Zhenkai LU ; Fumei LIU ; Lianxin WANG ; Yuanyuan LI ; Yanming XIE
Chinese Journal of Experimental Traditional Medical Formulae 2024;30(8):223-232
ObjectiveTo comprehensively assess the clinical value of Duliang soft capsules in the treatment of migraine with wind-cold blood stasis syndrome, and to provide guidance for national medical decision-making, clinical drug promotion, and pharmaceutical services. MethodThe evaluation of Duliang soft capsules' clinical value was conducted in accordance with the Guidelines for the Management of Comprehensive Clinical Evaluation of Drugs (Trial Version, 2021) using a combination of qualitative and quantitative methods. Utilizing the CSC v2.0 software, this study conducted a comprehensive clinical evaluation of Duliang soft capsules across the "6+1" dimensions, including safety pre- and post-market launch, effectiveness in treating migraine, economy (cost-effectiveness), and innovation, suitability, accessibility, and traditional Chinese medicine (TCM) characteristics in both its technology and clinical applications. ResultSafety: Duliang soft capsules were found to have good safety based on evidence from known adverse reactions (spontaneous reporting system (SRS) data, literature data, etc.), pre-marketing toxicological research, and post-marketing drug monitoring. Effectiveness: A meta-analysis indicated that the combination of Duliang soft capsules and western medicine was more effective than Western medicine alone in the treatment of migraine. The product's effectiveness was rated as "Best" based on the quality and value of the evidence. Economy: Duliang soft capsules are moderately priced and categorized as a Type B medical insurance product. Economic research indicated that the combination of Western medicine and Duliang soft capsules was more cost-effective than Western medicine alone. The product's economy was rated as "Better". Innovation: Duliang soft capsules, with Angelicae Dahuricae Radix and Chuanxiong Rhizoma as the main components, hold one invention patent and have been awarded the China Patent Excellence Award. The pharmaceutical company has introduced innovative extraction (CO2 supercritical extraction technology) and formulation (soft capsule) processes. The product's innovation was rated as "Better". Suitability: A questionnaire survey on Duliang soft capsules showed that it was well-suited for both patients and healthcare professionals. The product received a comprehensive assessment of suitability through the "Evaluation of Chinese Patent Medicine Information Services". The product's suitability was rated as "Best". Accessibility: Duliang soft capsules are moderately priced, making them accessible and affordable. The product's accessibility was rated as "Good" based on evidence from these three aspects. TCM characteristics: The formulation of Duliang soft capsules can be traced back to WANG Qiu's Selected Formulas from the Praiseworthy Studio (Shi Zhai Bai Yi Xuan Fang) from the Song Dynasty, and it was documented in ZHANG Jiebin's The Complete Works of Zhang Jing-yue (Jing Yue Quan Shu) as "Duliangwan". The product has been extensively studied with over 2000 clinical cases since its market launch, and its TCM characteristics were rated as outstanding with sufficient evidence. ConclusionThe comprehensive clinical value evaluation of Duliang soft capsules demonstrated its high effectiveness, suitability, and accessibility, and outstanding TCM characteristics. The product's safety, economy, and innovation received good ratings. In summary, Duliang soft capsules exhibited significant clinical value and outstanding TCM characteristics, the evidence was sufficient, and the result was confirmed, providing crucial references for clinical decision-making and pharmaceutical management.
4.Study on the compatibility between pharmaceutical excipient polyethylene glycol 6000 and antiepileptic active pharmaceutical ingredients levetiracetam
Yun JIANG ; Ying ZHOU ; Yong ZHAO ; Jinfeng ZHENG ; Yanming LIU
China Pharmacist 2024;27(1):57-65
Objective To investigate the compatibility between antiepileptic active pharmaceutical ingredient(API)levetiracetam and binder polyethylene glycol 6000,and provide a basis for evaluating and ensuring the safety of drugs.Methods Levetiracetam and polyethylene glycol 6000 from different producers were mixed in a certain proportion,and placed under different conditions according to the test method of stability influencing factors.The compatibility of levetiracetam and polyethylene glycol 6000 was analyzed by differential scanning calorimetry and HPLC,respectively,and the thermal variations,changes of levetiracetam appearance and related substances were investigated.Results After being placed under high humidity(relative humidity of 90%)and light(4 500 Lx)for 10 days,the compatibility between API and pharmaceutical excipients was proved good,while under the conditions of high temperature of 50℃ and 60℃,polyethylene glycol 6000 interacted with levetiracetam,resulting in the growth of levetiracetam related substances including impurity A and total amount of impurities,along with the production of two unknown impurities.Polyethylene glycol 6000 from different producers and different batches had different effects on the related substances of levetiracetam.Conclusion There is a risk of compatibility between levetiracetam and polyethylene glycol 6000 under elevated temperatures,and it is recommended that preparation producers optimize product prescriptions and improve the quality and safety of drugs.
5.Research Progress in TCM Regulating Exosomes in Diabetic Kidney Disease
Ming ZHAO ; Yanming HE ; Zeng ZHANG ; Zheng YAO
Chinese Journal of Information on Traditional Chinese Medicine 2024;31(4):183-186
Diabetic kidney disease(DKD)is a common microvascular complication of diabetes mellitus.Exosomes play a key role in mesangial cell proliferation,podocyte apoptosis,and epithelial mesenchymal transformation induced by renal tubular epithelial cells,which are important links in the pathogenesis of DKD.Based on the correlation of abnormal function of exosomes of DKD with theory of"disperse essence by spleen qi"and the theory of"kidney collaterals stasis"in TCM,this article reviewed the research progress and regulation mechanism of TCM in regulating exosomes to intervene in diabetic kidney disease,providing reference for related research.
6.Investigation and analysis of the current status of transjugular intrahepatic portosystemic shunt treatment for portal hypertension in China
Haozhuo GUO ; Meng NIU ; Haibo SHAO ; Xinwei HAN ; Jianbo ZHAO ; Junhui SUN ; Zhuting FANG ; Bin XIONG ; Xiaoli ZHU ; Weixin REN ; Min YUAN ; Shiping YU ; Weifu LYU ; Xueqiang ZHANG ; Chunqing ZHANG ; Lei LI ; Xuefeng LUO ; Yusheng SONG ; Yilong MA ; Tong DANG ; Hua XIANG ; Yun JIN ; Hui XUE ; Guiyun JIN ; Xiao LI ; Jiarui LI ; Shi ZHOU ; Changlu YU ; Song HE ; Lei YU ; Hongmei ZU ; Jun MA ; Yanming LEI ; Ke XU ; Xiaolong QI
Chinese Journal of Radiology 2024;58(4):437-443
Objective:To investigate the current situation of the use of transjugular intrahepatic portosystemic shunt (TIPS) for portal hypertension, which should aid the development of TIPS in China.Methods:The China Portal Hypertension Alliance (CHESS) initiated this study that comprehensively investigated the basic situation of TIPS for portal hypertension in China through network research. The survey included the following: the number of surgical cases, main indications, the development of Early-TIPS, TIPS for portal vein cavernous transformation, collateral circulation embolization, intraoperative portal pressure gradient measurement, commonly used stent types, conventional anticoagulation and time, postoperative follow-up, obstacles, and the application of domestic instruments.Results:According to the survey, a total of 13 527 TIPS operations were carried out in 545 hospitals participating in the survey in 2021, and 94.1% of the hospital had the habit of routine follow-up after TIPS. Most hospitals believed that the main indications of TIPS were the control of acute bleeding (42.6%) and the prevention of rebleeding (40.7%). 48.1% of the teams carried out early or priority TIPS, 53.0% of the teams carried out TIPS for the cavernous transformation of the portal vein, and 81.0% chose routine embolization of collateral circulation during operation. Most of them used coils and biological glue as embolic materials, and 78.5% of the team routinely performed intraoperative portal pressure gradient measurements. In selecting TIPS stents, 57.1% of the hospitals woulel choose Viator-specific stents, 57.2% woulel choose conventional anticoagulation after TIPS, and the duration of anticoagulation was between 3-6 months (55.4%). The limitation of TIPS surgery was mainly due to cost (72.3%) and insufficient understanding of doctors in related departments (77.4%). Most teams accepted the domestic instruments used in TIPS (92.7%).Conclusions:This survey shows that TIPS treatment is an essential part of treating portal hypertension in China. The total number of TIPS cases is far from that of patients with portal hypertension. In the future, it is still necessary to popularize TIPS technology and further standardize surgical indications, routine operations, and instrument application.
7.Study on neurological monitoring with cortical electrodes in thyroidectomy
Xiaoyan WANG ; Qi ZHONG ; Hongzhi MA ; Wei GUO ; Shuo DING ; Yanming ZHAO ; Yurong HE ; Qijia LI
Journal of Xi'an Jiaotong University(Medical Sciences) 2024;45(1):94-99
Objective To compare the synergies between the transcutaneous needle electrodes and the ETT surface electrodes used for neurological surveillance in thyroidology,and explore how to identify and protect recurrent laryngeal nerve and vagus nerve when the patient is not suitable for oral plug or surface electrodes are failure.Methods To collect and analyze the clinical data of 32 patients undergoing surgical treatment for thyroid disease,a total of 40 neurons of the recurrent laryngeal nerves and vagus nerves were monitored,and the amplitude and latency were recorded using ETT surface electrodes and transcutaneous needle electrodes for nerve monitoring,respectively.SPSS 26.0 software was used for statistical analysis,paired t-tests were used to analyze and compare the latency periods,and the rank sum test was used to analyze whether there is a difference in the amplitude obtained from stimulation of transcutaneous needle electrodes and ETT surface electrodes.Results When the transcutaneous needle electrodes were used in thyroid surgery,we identified all the nerves,obtained two-phase electrical signals similar to the latency and amplitude of the ETT surface electrodes,and could effectively identify the recurrent laryngeal nerve and vagus nerve[(3.22±0.50)ms vs.(3.85±1.00)ms,P<0.05]through the incapacity period,with no obvious difference in the monitoring effect from the ETT surface electrodes[(3.04±0.58)ms vs.(3.89±1.07)ms,P<0.05].At the same time,the visualization and safety of transcutaneous needle electrodes were higher,with great advantages.Conclusion Transcutaneous needle electrodes can effectively assist in identifying and protecting the recurrent laryngeal nerve and vagus nerve,and thus are an important supplement to ETT surface electrodes.
8.A study on the correlation between childhood trauma,resilience and non-suicidal self-injury in adolescents
Yuanyuan GAO ; Ran WANG ; Na LI ; Lan WANG ; Tianyu ZHAO ; Xiaochuan ZHAO ; Wenting LU ; Yanming JIAO ; Congmin ZHANG ; Ning LI ; Jincheng WANG ; Xueyi WANG
Chinese Journal of Nervous and Mental Diseases 2024;50(8):483-488
Objective To explore association between childhood trauma,resilience and non-suicidal self-injury in adolescents.Methods One hundred and fifty-eight first-episode adolescent patients with mood disorders were selected and divided into NSSI group(n=94)and non-NSSI group(n=64)based on presence or absence of NSSI.The Hamilton depression scale(HAMD),Hamilton anxiety scale(HAMA),childhood trauma questionnaire(CTQ-SF)and Connor-Davidson resilience scale(CD-RISC)were used to evaluate the depression and anxiety symptoms,childhood trauma and resilience.Results There were more cases of younger age(16.17±1.67 vs.16.73±1.37),lower education level(30.9% vs.15.6% ),left behind experience(48.9% vs.29.7% ),school bullying(46.8% vs.25.0% ),suicide ideation(85.1% vs.37.5% )and history of attempted suicide(29.8% vs.6.3% )in the group with NSSI compared to those without NSSI.The HAMD score(27.99±5.94 vs.24.19±5.19),HAMA score(18.02±5.94 vs.15.45±4.99),CTQ total score(48.43±15.40 vs.41.97±9.75),emotional abuse score(12.77±6.06 vs.10.19±4.06),and emotional neglect score(11.40±5.34 vs.9.14±3.55)were higher in the group with NSSI,and the differences between the two groups were significant(P<0.05).The total scores of psychological resilience(39.83±10.27 vs.28.66±12.75),resilience(19.59±4.92 vs.12.28±6.47),strength(12.03±3.98 vs.9.99±4.67),and optimism(8.98±2.97 vs.6.47±3.73)in the group without NSSI were higher than those in the group with NSSI(P<0.05).Logistic regression analysis showed that left behind experience(OR=4.494,95% CI:1.192-16.940),school bullying(OR=5.983,95% CI:1.329-26.945),suicidal ideation(OR=13.225,95% CI:2.908-60.146),history of attempted suicide(OR=16.769,95% CI:1.845-152.379),HAMD(OR=1.264,95% CI:1.046-1.626),emotional abuse(OR=1.327,95% CI:1.093-1.612),and resilience(OR=0.468,95% CI:0.266-0.823)were significantly associated with adolescent mood disorders with NSSI(P<0.05).Conclusion Left behind experience,campus bullying,suicidal ideation and attempted suicide,emotional abuse,degree of depression,and psychological resilience may be associated with NSSI behavior in adolescents with mood disorders.
9.Application of HPV semi-quantitative detection in swab of head and neck mucosal lesions
Qijia LI ; Xiaoyan WANG ; Yurong HE ; Rongjia LI ; Xiaoyu SHI ; Shuo DING ; Wei GUO ; Yanming ZHAO ; Jugao FANG ; Qi ZHONG
Chinese Archives of Otolaryngology-Head and Neck Surgery 2024;31(6):341-345
OBJECTIVE To compare the consistency between the semi-quantitative detection of HPV E6/E7 mRNA and the detection of p16 IHC and E6/E7RNA ISH in the tissues,and the feasibility of detecting high-risk HPV in head and neck mucosal lesions by HPV E6/E7 mRNA detection in the swabs was discussed.METHODS A total of 100 cases of head and neck mucosal lesions treated by the Department of Head and Neck Surgery,Beijing Tongren Hospital Affiliated to Capital Medical University from September 2022 to August 2023 were collected.Semi-quantitative detection of HPV E6/E7 mRNA was performed in oropharynx,lesion surface swab and lesion tissue specimen,and p16 immunohistochemical staining(IHC)and E6/E7 mRNA in situ hybridization(ISH)were detected in lesion tissue,and the consistency and difference of different detection results were studied.RESULTS Among the 100 patients,83 met the inclusion criteria and were divided into 21 papilloma cases,10 polyps/chronic inflammation cases,19 laryngeal cancer cases,13 oropharyngeal cancer cases,and 20 hypopharyngeal cancer cases according to pathological diagnosis.The HPV E6/E7 mRNA semi-quantitative results of oropharyngeal swab and lesion surface swab showed moderate or near high consistency with p16 IHC results.The results of HPV E6/E7 mRNA semi-quantitative in diseased tissue were highly consistent with those of p16 IHC(Kappa=0.780).In the diagnostic efficacy analysis,both swabs showed high consistency with HPV E6/E7 mRNA ISH(Kappa=0.690 and 0.708).CONCLUSION In the head and neck mucosal lesions,the HPV semi-quantitative detection results of oropharyngeal and lesion surface swab showed good consistency compared with classical p16 IHC and gold standard HPV E6/E7 mRNA ISH.It is a simple and reliable method for clinical high-risk HPV detection,which is helpful for the screening and individualized precise prevention and control of HPV infection in head and neck mucosal lesions.
10.Surveillance of bacterial resistance in tertiary hospitals across China:results of CHINET Antimicrobial Resistance Surveillance Program in 2022
Yan GUO ; Fupin HU ; Demei ZHU ; Fu WANG ; Xiaofei JIANG ; Yingchun XU ; Xiaojiang ZHANG ; Fengbo ZHANG ; Ping JI ; Yi XIE ; Yuling XIAO ; Chuanqing WANG ; Pan FU ; Yuanhong XU ; Ying HUANG ; Ziyong SUN ; Zhongju CHEN ; Jingyong SUN ; Qing CHEN ; Yunzhuo CHU ; Sufei TIAN ; Zhidong HU ; Jin LI ; Yunsong YU ; Jie LIN ; Bin SHAN ; Yunmin XU ; Sufang GUO ; Yanyan WANG ; Lianhua WEI ; Keke LI ; Hong ZHANG ; Fen PAN ; Yunjian HU ; Xiaoman AI ; Chao ZHUO ; Danhong SU ; Dawen GUO ; Jinying ZHAO ; Hua YU ; Xiangning HUANG ; Wen'en LIU ; Yanming LI ; Yan JIN ; Chunhong SHAO ; Xuesong XU ; Wei LI ; Shanmei WANG ; Yafei CHU ; Lixia ZHANG ; Juan MA ; Shuping ZHOU ; Yan ZHOU ; Lei ZHU ; Jinhua MENG ; Fang DONG ; Zhiyong LÜ ; Fangfang HU ; Han SHEN ; Wanqing ZHOU ; Wei JIA ; Gang LI ; Jinsong WU ; Yuemei LU ; Jihong LI ; Qian SUN ; Jinju DUAN ; Jianbang KANG ; Xiaobo MA ; Yanqing ZHENG ; Ruyi GUO ; Yan ZHU ; Yunsheng CHEN ; Qing MENG ; Shifu WANG ; Xuefei HU ; Wenhui HUANG ; Juan LI ; Quangui SHI ; Juan YANG ; Abulimiti REZIWAGULI ; Lili HUANG ; Xuejun SHAO ; Xiaoyan REN ; Dong LI ; Qun ZHANG ; Xue CHEN ; Rihai LI ; Jieli XU ; Kaijie GAO ; Lu XU ; Lin LIN ; Zhuo ZHANG ; Jianlong LIU ; Min FU ; Yinghui GUO ; Wenchao ZHANG ; Zengguo WANG ; Kai JIA ; Yun XIA ; Shan SUN ; Huimin YANG ; Yan MIAO ; Mingming ZHOU ; Shihai ZHANG ; Hongjuan LIU ; Nan CHEN ; Chan LI ; Jilu SHEN ; Wanqi MEN ; Peng WANG ; Xiaowei ZHANG ; Yanyan LIU ; Yong AN
Chinese Journal of Infection and Chemotherapy 2024;24(3):277-286
Objective To monitor the susceptibility of clinical isolates to antimicrobial agents in tertiary hospitals in major regions of China in 2022.Methods Clinical isolates from 58 hospitals in China were tested for antimicrobial susceptibility using a unified protocol based on disc diffusion method or automated testing systems.Results were interpreted using the 2022 Clinical &Laboratory Standards Institute(CLSI)breakpoints.Results A total of 318 013 clinical isolates were collected from January 1,2022 to December 31,2022,of which 29.5%were gram-positive and 70.5%were gram-negative.The prevalence of methicillin-resistant strains in Staphylococcus aureus,Staphylococcus epidermidis and other coagulase-negative Staphylococcus species(excluding Staphylococcus pseudintermedius and Staphylococcus schleiferi)was 28.3%,76.7%and 77.9%,respectively.Overall,94.0%of MRSA strains were susceptible to trimethoprim-sulfamethoxazole and 90.8%of MRSE strains were susceptible to rifampicin.No vancomycin-resistant strains were found.Enterococcus faecalis showed significantly lower resistance rates to most antimicrobial agents tested than Enterococcus faecium.A few vancomycin-resistant strains were identified in both E.faecalis and E.faecium.The prevalence of penicillin-susceptible Streptococcus pneumoniae was 94.2%in the isolates from children and 95.7%in the isolates from adults.The resistance rate to carbapenems was lower than 13.1%in most Enterobacterales species except for Klebsiella,21.7%-23.1%of which were resistant to carbapenems.Most Enterobacterales isolates were highly susceptible to tigecycline,colistin and polymyxin B,with resistance rates ranging from 0.1%to 13.3%.The prevalence of meropenem-resistant strains decreased from 23.5%in 2019 to 18.0%in 2022 in Pseudomonas aeruginosa,and decreased from 79.0%in 2019 to 72.5%in 2022 in Acinetobacter baumannii.Conclusions The resistance of clinical isolates to the commonly used antimicrobial agents is still increasing in tertiary hospitals.However,the prevalence of important carbapenem-resistant organisms such as carbapenem-resistant K.pneumoniae,P.aeruginosa,and A.baumannii showed a downward trend in recent years.This finding suggests that the strategy of combining antimicrobial resistance surveillance with multidisciplinary concerted action works well in curbing the spread of resistant bacteria.

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