1.Evaluation of asymptomatic ocular surface disorders in hospitalized patients with primary pterygium before surgery
Chengfang ZHU ; Zhirong LIN ; Xie FANG ; Xianwen XIAO ; Zhiwen XIE ; Shunrong LUO ; Bin LIU ; Xumin SHANG ; Nuo DONG ; Huping WU
International Eye Science 2024;24(1):131-135
AIM: To investigate the preoperative ocular symptoms and the characteristics of asymptomatic ocular surface abnormalities in hospitalized patients with primary pterygium.METHODS: Cross-sectional study. Hospitalized patients diagnosed with primary pterygium and scheduled to receive pterygium excision surgery at the Xiamen Eye Center of Xiamen University from August 2022 to October 2022 were enrolled. Ocular surface disease index questionnaire(OSDI), six examinations including non-invasive tear film break-up time, Schirmer I test, tear meniscus height, lid margin abnormality, meibomian gland dropout and tear film lipid layer thickness, and anterior segment optical coherence tomography(AS-OCT)were performed and statistically analyzed.RESULTS: A total of 178 cases(178 eyes), with a mean age of 54.39±10.75 years old, were recruited, including 75 males(42.1%)and 103 females(57.9%). The average values of ocular surface parameters in these patients included OSDI: 11.47±9.69, tear film break-up time: 7.10±3.86 s; tear meniscus height: 0.16±0.07 mm, Schirmer I test values: 14.39±7.29 mm/5 min, and pterygium thickness: 504.74±175.87 μm. Totally 161 eyes(90.4%)presented with abnormal lid margin, 44 eyes(24.7%)presented with meibomian gland dropout score ≥4, 52 eyes(29.2%)presented with low lipid layer thickness. In the 6 objective examinations, abnormalities in at least 4 of these tests were found in 85.4% of eyes. Pterygium morphology was classified into four grades: 10 eyes(5.6%)of grade Ⅰ, 93 eyes(52.2%)of grade Ⅱ, 60 eyes(33.7%)of grade Ⅲ, and 15 eyes(8.4%)of grade Ⅳ. In patients with a higher grade of pterygium, the tear film break-up time was lower, and the proportion of abnormal lid margin was also significantly higher(P<0.05). The patients were further divided into two subgroups, including 121 eyes(68.0%)with normal OSDI <13 in the normal group and 57 eyes(32.0%)with OSDI ≥13 in the abnormal group. No significant difference was found in the proportion of meibomian gland dysfunction between the two groups of patients(71.9% vs. 71.9%, P=0.872). In addition, there were differences in the number of abnormal objective examinations(4.11±0.85 vs. 4.91±0.99, P<0.001).CONCLUSIONS: Asymptomatic ocular surface abnormalities were present preoperatively in patients hospitalized for primary pterygium. A comparable high incidence of structural or functional meibomian gland dysfunction existed in pterygium patients with or without apparent ocular discomfort. More attention should be paid to the ocular surface abnormalities in those asymptomatic patients before primary pterygium surgery.
2.Clinical Study on Dingxuan Decoction Combined with Vestibular Function Rehabilitation Training in the Treatment of Meniere's Disease
Yu-Fang ZHANG ; Yan-Fang SONG ; Ying-Zhe CHEN ; Xiang-Dong WU ; Jing-Jing HAI ; Wen-Qing SUN
Journal of Guangzhou University of Traditional Chinese Medicine 2024;41(3):646-652
Objective To investigate the efficacy of Dingxuan Decoction combined with vestibular function rehabilitation training in the treatment of Meniere's disease and to observe its effect on clinical symptoms and blood flow of vertebral artery.Methods A total of 100 patients with Meniere's disease of liver-kidney yin deficiency complicated with wind-water upward stirring type were randomly divided into an observation group and a control group,with 50 patients in each group.The control group was given conventional treatment and vestibular function rehabilitation training,and the observation group was treated with Dingxuan Decoction on the basis of treatment for the control group.The two groups were treated for 4 weeks and then were followed up for 6 months.The changes of traditional Chinese medicine(TCM)syndrome score,Dizziness Handicap Inventory(DHI)score,Tinnitus Handicap Inventory(THI)score,hearing visual analogue scale(VAS)score and vertebral artery blood flow in the two groups were observed before and after the treatment.After treatment,the TCM syndrome efficacy,hearing improvement and follow-up results were compared between the two groups.Results(1)After 4 weeks of treatment,the total effective rate for TCM syndrome efficacy of the observation group was 86.00%(43/50),and that of the control group was 62.00%(31/50),and the intergroup comparison showed that the TCM syndrome efficacy in the observation group was significantly superior to that in the control group(P<0.01).(2)After 4 weeks of treatment,the hearing of patients in both groups was improved,and the total effective rate for the efficacy of hearing improvement in the observation group was 76.00%(38/50),while that in the control group was 46.00%(23/50).The intergroup comparison showed that the efficacy of hearing improvement in the observation group was significantly superior to that in the control group(P<0.01).(3)After treatment,the TCM syndrome scores,DHI score,THI score and hearing VAS scores in the two groups were all decreased compared with those before treatment(P<0.05 or P<0.01),and the decrease in the observation group was significantly superior to that in the control group(P<0.01).(4)After treatment,the average blood flow velocity of the left vertebral artery(LVA)and the right vertebral artery(RVA)in the two groups were both increased compared with those before treatment(P<0.05),and the increase in the observation group was significantly superior to that in the control group(P<0.05 or P<0.01).(5)The results of 6-month follow-up after treatment showed that the incidence of Meniere's disease and the frequency of attack in the observation group were significantly reduced compared with those in the control group,and the episode duration in the observation group was significantly shorter than that in the control group,the differences being all statistically significant(P<0.05 or P<0.01).Conclusion Dingxuan Decoction combined with vestibular function rehabilitation training exert certain effect in treating patients with Meniere's disease of liver-kidney yin deficiency complicated with wind-water upward stirring type,and the therapy is effective on improving patients'clinical symptoms and vertebral artery blood flow,reducing the risk of recurrence and improving the quality of life of the patients.
3.Real-world research on Panlongqi tablets in the treatment of fractures
Shiyuan FANG ; Jian QIN ; Liyong ZHANG ; Zerong WU ; Tuanmao GUO ; Ting DONG ; Wei XU ; Jiazhao YANG ; Lei CHEN ; Bin LIU
China Pharmacy 2024;35(24):3046-3051
OBJECTIVE To evaluate the effectiveness and safety of Panlongqi tablets in the treatment of fractures based on real-world research. METHODS From September 2021 to September 2023, fracture patients admitted to 33 medical institutions were collected retrospectively. Patients who received conventional treatment were divided into control group (n=3 750), and patients who received combination of Panlongqi tablets on the basis of conventional treatment were divided into observation group (n= 3 706). Self-reported indicators of patients were collected through telephone follow-up at 0, 4, 7 and 14 days after treatment. The improvement values of pain score, swelling score and health utility value, as well as effective rate and adverse drug reactions were compared between 2 groups. The propensity matching score (PSM) method was adopted to perform baseline matching on patient’s age, gender, fracture site, fracture severity, surgical type, type of hospital, and other indicators. Statistical analysis was performed on each therapeutic effect indicator. RESULTS After PSM, a total of 6 425 patients were included, of which 3 055 were in the observation group and 3 370 were in the control group. After 14 days of treatment, the observation group showed significant improvement in pain score (4.768 vs. 4.353), swelling fangshiyuan2008@126.com grading score (2.979 vs. 2.391), and life quality utility value (0.430 vs. 0.363), as well as effective rate (87.20% vs.75.99%) compared to the control group (P<0.05). The results of subgroup analyses conducted by gender, age, hospital type, and fracture site were consistent with the aforementioned results. In terms of safety, the observation group had no serious adverse reactions, with a total of 29 cases of mild adverse reactions such as dizziness, stomach pain, and allergies, with an incidence rate of 0.78%. CONCLUSIONS Panlongqi tablets combined with conventional treatment are significantly better than conventional treatment in improving pain, swelling, quality of life, and effective rate in patients with fractures, and have good safety.
4.Clinical trial of Morinda officinalis oligosaccharides in the continuation treatment of adults with mild and moderate depression
Shu-Zhe ZHOU ; Zu-Cheng HAN ; Xiu-Zhen WANG ; Yan-Qing CHEN ; Ya-Ling HU ; Xue-Qin YU ; Bin-Hong WANG ; Guo-Zhen FAN ; Hong SANG ; Ying HAI ; Zhi-Jie JIA ; Zhan-Min WANG ; Yan WEI ; Jian-Guo ZHU ; Xue-Qin SONG ; Zhi-Dong LIU ; Li KUANG ; Hong-Ming WANG ; Feng TIAN ; Yu-Xin LI ; Ling ZHANG ; Hai LIN ; Bin WU ; Chao-Ying WANG ; Chang LIU ; Jia-Fan SUN ; Shao-Xiao YAN ; Jun LIU ; Shou-Fu XIE ; Mao-Sheng FANG ; Wei-Feng MI ; Hong-Yan ZHANG
The Chinese Journal of Clinical Pharmacology 2024;40(6):815-819
Objective To observe the efficacy and safety of Morinda officinalis oligosaccharides in the continuation treatment of mild and moderate depression.Methods An open,single-arm,multi-center design was adopted in our study.Adult patients with mild and moderate depression who had received acute treatment of Morinda officinalis oligosaccharides were enrolled and continue to receive Morinda officinalis oligosaccharides capsules for 24 weeks,the dose remained unchanged during continuation treatment.The remission rate,recurrence rate,recurrence time,and the change from baseline to endpoint of Hamilton Depression Scale(HAMD),Hamilton Anxiety Scale(HAMA),Clinical Global Impression-Severity(CGI-S)and Arizona Sexual Experience Scale(ASEX)were evaluated.The incidence of treatment-related adverse events was reported.Results The scores of HAMD-17 at baseline and after treatment were 6.60±1.87 and 5.85±4.18,scores of HAMA were 6.36±3.02 and 4.93±3.09,scores of CGI-S were 1.49±0.56 and 1.29±0.81,scores of ASEX were 15.92±4.72 and 15.57±5.26,with significant difference(P<0.05).After continuation treatment,the remission rate was 54.59%(202 cases/370 cases),and the recurrence rate was 6.49%(24 cases/370 cases),the recurrence time was(64.67±42.47)days.The incidence of treatment-related adverse events was 15.35%(64 cases/417 cases).Conclusion Morinda officinalis oligosaccharides capsules can be effectively used for the continuation treatment of mild and moderate depression,and are well tolerated and safe.
5.Effects of Angelica Sinensis and Astragalus capsules on myocardial autophagy in rats with heart failure
Xue WU ; Xin-Fang LÜ ; Xiao-Dong ZHI ; Xin-Ke ZHAO ; Ying-Dong LI
The Chinese Journal of Clinical Pharmacology 2024;40(10):1453-1457
Objective To investigate whether Angelica Sinensis and Astragalus capsules(AAC)regulates myocardial autophagy in heart failure rats via the phosphatidylinositol 3 kinase(PI3K)/protein kinase(Akt)/mammalian target of sirolimus(mTOR)signaling pathway.Methods A rat model of heart failure was constructed by intraperitoneal 2.5 mg·kg-1 doxorubicin,and another 8 rats served as the control group.The modeling rats were randomly divided into model group,control group and experimental-L,-M,-H groups.Control group was given 30 mg·kg-1 3-methyladenine by intraperitoneal injection;experimental-L,-M,-H groups were given 150,300 and 450 mg·kg-1 AAC by gavage,respectively;blank and model groups were given the same quantity of sterile distilled water.Six groups were administered once daily for 6 weeks.The cardiac function was measured by ultrasound,and the expression levels of PI3K,Akt,mTOR,sequestosome 1(P62)and microtubule-associated light chain protein 3-Ⅱ/Ⅰ(LC3 Ⅱ/Ⅰ)in myocardial tissue were measured by Western blot.Results In the blank,model,control and experimental-H groups,the left ventricular ejection fraction values were(85.00±3.63)%,(56.75±4.83)%,(75.63±3.70)%and(72.75±4.23)%;the relative expression levels of PI3K were 1.00±0,0.28±0.05,0.64±0.08 and 0.74±0.16;phosphorylated Akt/Akt were 1.00±0,0.49±0.06,0.90±0.16 and 0.95±0.10;phosphorylated mTOR/mTOR values were 1.00±0,0.42±0.09,0.73±0.13 and 0.83±0.08;the relative expression levels of P62 proteins were 1.00±0,0.24±0.12,0.57±0.09 and 0.96±0.10;the relative expression levels of LC3 Ⅱ/Ⅰ proteins were 1.00±0,4.31±0.75,2.20±0.76 and 1.59±0.24,respectively.Compared to the model group,statistical significant were identified in the experimental-H and control groups(all P<0.05).Conclusion AAC can regulate PI3K/Akt/mTOR pathway,inhibit myocardial autophagy and improve cardiac function in rats with heart failure.
6.Expert consensus on surgical treatment of oropharyngeal cancer
China Anti-Cancer Association Head and Neck Oncology Committee ; China Anti-Cancer Association Holistic Integrative Oral Cancer on Preventing and Screen-ing Committee ; Min RUAN ; Nannan HAN ; Changming AN ; Chao CHEN ; Chuanjun CHEN ; Minjun DONG ; Wei HAN ; Jinsong HOU ; Jun HOU ; Zhiquan HUANG ; Chao LI ; Siyi LI ; Bing LIU ; Fayu LIU ; Xiaozhi LV ; Zheng-Hua LV ; Guoxin REN ; Xiaofeng SHAN ; Zhengjun SHANG ; Shuyang SUN ; Tong JI ; Chuanzheng SUN ; Guowen SUN ; Hao TIAN ; Yuanyin WANG ; Yueping WANG ; Shuxin WEN ; Wei WU ; Jinhai YE ; Di YU ; Chunye ZHANG ; Kai ZHANG ; Ming ZHANG ; Sheng ZHANG ; Jiawei ZHENG ; Xuan ZHOU ; Yu ZHOU ; Guopei ZHU ; Ling ZHU ; Susheng MIAO ; Yue HE ; Jugao FANG ; Chenping ZHANG ; Zhiyuan ZHANG
Journal of Prevention and Treatment for Stomatological Diseases 2024;32(11):821-833
With the increasing proportion of human papilloma virus(HPV)infection in the pathogenic factors of oro-pharyngeal cancer,a series of changes have occurred in the surgical treatment.While the treatment mode has been im-proved,there are still many problems,including the inconsistency between diagnosis and treatment modes,the lack of popularization of reconstruction technology,the imperfect post-treatment rehabilitation system,and the lack of effective preventive measures.Especially in terms of treatment mode for early oropharyngeal cancer,there is no unified conclu-sion whether it is surgery alone or radiotherapy alone,and whether robotic minimally invasive surgery has better func-tional protection than radiotherapy.For advanced oropharyngeal cancer,there is greater controversy over the treatment mode.It is still unclear whether to adopt a non-surgical treatment mode of synchronous chemoradiotherapy or induction chemotherapy combined with synchronous chemoradiotherapy,or a treatment mode of surgery combined with postopera-tive chemoradiotherapy.In order to standardize the surgical treatment of oropharyngeal cancer in China and clarify the indications for surgical treatment of oropharyngeal cancer,this expert consensus,based on the characteristics and treat-ment status of oropharyngeal cancer in China and combined with the international latest theories and practices,forms consensus opinions in multiple aspects of preoperative evaluation,surgical indication determination,primary tumor re-section,neck lymph node dissection,postoperative defect repair,postoperative complication management prognosis and follow-up of oropharyngeal cancer patients.The key points include:① Before the treatment of oropharyngeal cancer,the expression of P16 protein should be detected to clarify HPV status;② Perform enhanced magnetic resonance imaging of the maxillofacial region before surgery to evaluate the invasion of oropharyngeal cancer and guide precise surgical resec-tion of oropharyngeal cancer.Evaluating mouth opening and airway status is crucial for surgical approach decisions and postoperative risk prediction;③ For oropharyngeal cancer patients who have to undergo major surgery and cannot eat for one to two months,it is recommended to undergo percutaneous endoscopic gastrostomy before surgery to effectively improve their nutritional intake during treatment;④ Early-stage oropharyngeal cancer patients may opt for either sur-gery alone or radiation therapy alone.For intermediate and advanced stages,HPV-related oropharyngeal cancer general-ly prioritizes radiation therapy,with concurrent chemotherapy considered based on tumor staging.Surgical treatment is recommended as the first choice for HPV unrelated oropharyngeal squamous cell carcinoma(including primary and re-current)and recurrent HPV related oropharyngeal squamous cell carcinoma after radiotherapy and chemotherapy;⑤ For primary exogenous T1-2 oropharyngeal cancer,direct surgery through the oral approach or da Vinci robotic sur-gery is preferred.For T3-4 patients with advanced oropharyngeal cancer,it is recommended to use temporary mandibu-lectomy approach and lateral pharyngotomy approach for surgery as appropriate;⑥ For cT1-2N0 oropharyngeal cancer patients with tumor invasion depth>3 mm and cT3-4N0 HPV unrelated oropharyngeal cancer patients,selective neck dissection of levels ⅠB to Ⅳ is recommended.For cN+HPV unrelated oropharyngeal cancer patients,therapeutic neck dissection in regions Ⅰ-Ⅴ is advised;⑦ If PET-CT scan at 12 or more weeks after completion of radiation shows intense FDG uptake in any node,or imaging suggests continuous enlargement of lymph nodes,the patient should undergo neck dissection;⑧ For patients with suspected extracapsular invasion preoperatively,lymph node dissection should include removal of surrounding muscle and adipose connective tissue;⑨ The reconstruction of oropharyngeal cancer defects should follow the principle of reconstruction steps,with priority given to adjacent flaps,followed by distal pedicled flaps,and finally free flaps.The anterolateral thigh flap with abundant tissue can be used as the preferred flap for large-scale postoperative defects.
7.Network meta-analysis of first-line treatments for metastatic urothelial carcinoma
Xuejia QIU ; Bingnan REN ; Lingzhi FANG ; Yufei LIAN ; Yupei WU ; Zhanjun DONG
China Pharmacy 2024;35(22):2815-2821
OBJECTIVE To systematically evaluate the effectiveness of different treatment regimens as first-line treatment for metastatic urothelial carcinoma (UC) using a network meta-analysis (NMA) approach. METHODS Electronic databases including PubMed, the Cochrane Library, Embase, Wanfang Data, CNKI, and VIP were searched for randomized controlled clinical trials (RCTs) on first-line treatment for metastatic UC from January 1, 2010 to January 31, 2024. After literature screening and data extraction, a risk of bias assessment of included studies was conducted. R software (version 4.3.2) was used to perform the NMA. RESULTS A total of 11 RCTs involving 14 treatment interventions were included. No significant differences were noted in objective response rate among groups, with the combination of pembrolizumab, gemcitabine and cisplatin having the highest probability of ranking first. Regarding progression-free survival (PFS) and overall survival (OS), no significant differences were observed among groups, while enfortumab vedotin combined with pembrolizumab showed a trend towards better PFS extension compared to gemcitabine combined with cisplatin [HR=0.45, 95%CI(0.20,1.06), P=0.049], and it had the highest probability of ranking first in both PFS and OS. CONCLUSIONS The combination of enfortumab vedotin and pembrolizumab may have an advantage in prolonging survival in the first-line treatments for metastatic UC.
8.TSHR Variant Screening and Phenotype Analysis in 367 Chinese Patients With Congenital Hypothyroidism
Hai-Yang ZHANG ; Feng-Yao WU ; Xue-Song LI ; Ping-Hui TU ; Cao-Xu ZHANG ; Rui-Meng YANG ; Ren-Jie CUI ; Chen-Yang WU ; Ya FANG ; Liu YANG ; Huai-Dong SONG ; Shuang-Xia ZHAO
Annals of Laboratory Medicine 2024;44(4):343-353
Background:
Genetic defects in the human thyroid-stimulating hormone (TSH) receptor (TSHR) gene can cause congenital hypothyroidism (CH). However, the biological functions and comprehensive genotype–phenotype relationships for most TSHR variants associated with CH remain unexplored. We aimed to identify TSHR variants in Chinese patients with CH, analyze the functions of the variants, and explore the relationships between TSHR genotypes and clinical phenotypes.
Methods:
In total, 367 patients with CH were recruited for TSHR variant screening using whole-exome sequencing. The effects of the variants were evaluated by in-silico programs such as SIFT and polyphen2. Furthermore, these variants were transfected into 293T cells to detect their Gs/cyclic AMP and Gq/11 signaling activity.
Results:
Among the 367 patients with CH, 17 TSHR variants, including three novel variants, were identified in 45 patients, and 18 patients carried biallelic TSHR variants. In vitro experiments showed that 10 variants were associated with Gs/cyclic AMP and Gq/11 signaling pathway impairment to varying degrees. Patients with TSHR biallelic variants had lower serum TSH levels and higher free triiodothyronine and thyroxine levels at diagnosis than those with DUOX2 biallelic variants.
Conclusions
We found a high frequency of TSHR variants in Chinese patients with CH (12.3%), and 4.9% of cases were caused by TSHR biallelic variants. Ten variants were identified as loss-of-function variants. The data suggest that the clinical phenotype of CH patients caused by TSHR biallelic variants is relatively mild. Our study expands the TSHR variant spectrum and provides further evidence for the elucidation of the genetic etiology of CH.
9.Value of colorectal double contrast-enhanced ultrasonography of large intestine for diagnosing colorectal lesions
Dong-Li DENG ; Wen-Fang WU ; Yuan-Yuan LU ; Qin-Yuan LI ; Qian YUAN ; Er-Qiu LIU ; Zhou LI ; Xiao-Hong XU
Chinese Medical Equipment Journal 2024;45(7):62-66
Objective To investigate the clinical application value of colorectal double contrast-enhanced ultrasonography in diagnosing colorectal lesions and TN staging of colorectal cancer.Methods The clinical data of 479 patients with positive colorectal doulble contrast-enhanced ultrasonography results admitted to some hospital from November 2019 to December 2022 were selected retrospectively.The distributions of colorectal lesions and TN stages of colorectal cancer diagnosed by colorectal double contrast-enhanced ultrasonography were counted using the pathological results as the gold standard.The clinical diagnostic efficacy of colorectal double contrast-enhanced ultrasonography for TN staging of colorectal cancer was analyzed,and the ROC curves of the T and N staging models for diagnosing colorectal cancer were plotted by applying the 1VSRest strategy.SAS 9.4 statistical software was used to analyze the data.Results Among the 479 patients included,there were 462 cases in which the pathological diagnosis and ultrasound diagnosis were consistent with each other,with a compliance rate of 96.5%;there were 427 cases of colorectal cancer,accounting for 89.1%.Colorectal double contrast-enhanced ultrasonography had the accuracies being 96%,82%,63%,79%and 97%respectively for T1,T2,T3,T4a and T4b stages of colorectal cancer,with the micro-mean value of the accuracy being 83%.The accuracies were 62%,68%and 80%for NO,N1 and N2 stages of colorectal cancer,with the micro-mean value of the accuracy being 70%.The micro-mean value for T staing model to diagnose colorectal cancer was 0.92,and the macro-mean value was 0.84;the micro-mean value for N staing model to diagnose colorectal cancer was 0.88,and the macro-mean value was 0.85.Conclusion Colorectal doube contrast-enhanced ultrasonography is effective for diagnosing colorectal lesions,and provides references for TN staging of colorectal cancer.[Chinese Medical Equipment Journal,2024,45(7):62-66]
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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