1.Abnormal Ocular Movement in the Early Stage of Multiple-System Atrophy With Predominant Parkinsonism Distinct From Parkinson’s Disease
Hong ZHOU ; Luhua WEI ; Yanyan JIANG ; Xia WANG ; Yunchuang SUN ; Fan LI ; Jing CHEN ; Wei SUN ; Lin ZHANG ; Guiping ZHAO ; Zhaoxia WANG
Journal of Clinical Neurology 2024;20(1):37-45
Background:
and Purpose The eye-movement examination can be applied as a noninvasive method to identify multiple-system atrophy (MSA). Few studies have investigated eye movements during the early stage of MSA with predominant parkinsonism (MSA-P). We aimed to determine the characteristic oculomotor changes in the early stage of MSA-P.
Methods:
We retrospectively selected 17 patients with MSA-P and 40 with Parkinson’s disease (PD) with disease durations of less than 2 years, and 40 age-matched healthy controls (HCs).Oculomotor performance in the horizontal direction was measured in detail using videonystagmography.
Results:
We found that the proportions of patients with MSA-P and PD exhibiting abnormal eye movements were 82.4% and 77.5%, respectively, which were significantly higher than that in the HCs (47.5%, p<0.05). Compared with HCs, patients with MSA-P presented significantly higher abnormal proportions of fixation and gaze-holding (17.6% vs. 0%), without-fixation (47.1% vs. 0%), prolonged latency in reflexive saccades (29.4% vs. 5.0%), memory-guided saccades (93.3% vs. 10.0%), and catch-up saccades in smooth-pursuit movement (SPM, 41.2% vs. 0) (all p<0.05). Compared with those with PD, patients with MSA-P presented a significantly higher proportion of catch-up saccades in SPM (41.2% vs. 2.5%, p<0.001).
Conclusions
MSA-P presented the characteristic of catch-up saccades in SPM in the early stage, which may provide some value in differentiating MSA-P from PD.
2.Sleep status and influencing factors among higher vocational college students
Yong LI ; Xiaomei XIONG ; Fang HUANG ; Xia HUANG ; Xiu XU ; Zhaoxia HE ; Wenlong ZHANG ; Jiang ZHAO ; Xueli LIU ; Ru GAO
Sichuan Mental Health 2023;36(4):366-371
BackgroundSleep disorder can adversely affect human physical and mental health, with important implications for socioeconomic development. And higher vocational college students are subject to various pressures and stimuli exerted by academic studies, job seeking and family socioeconomic status, which may contribute to the onset insomnia symptom or sleep disorder. ObjectiveTo discuss the sleep status and influencing factors among higher vocational college students, and to provide references for improving their sleep status. MethodsIn January and February, 2022, a stratified random sampling method was utilized to enroll 3 300 students from five higher vocational colleges in Wenjiang district of Chengdu city. All the participants were assessed using Insomnia Severity Index (ISI), Patient Health Questionnaire Depression Scale-9 item (PHQ-9) and Generalized Anxiety Disorder Scale-7 (GAD-7). Pearson correlation analysis was conducted to test the correlation of ISI with PHQ-9 and GAD-7 scores, and the Logistic regression analysis was performed to identify the influencing factors of insomnia symptom in higher vocational college students. ResultInsomnia symptom was detected in 81.90% (2 497 / 3 300) of higher vocational college students. The detection rate of insomnia symptom among vocational college students yielded statistical difference in terms of gender, family socioeconomic status, being an only child or having siblings, degree of psychological pressure exerted by academic studies or job seeking, amount of hours spent on Internet per day, frequency of physical exercise, and the presence or absence of anxiety symptom and depression symptom (χ2=21.032, 22.172, 8.983, 75.939, 36.781, 32.350, 54.512, 86.561, P<0.01 or 0.05). Among higher vocational college students, ISI score was positively correlated with GAD-7 and PHQ-9 scores (r=0.620, 0.714, P<0.01), and GAD-7 score was positively correlated with PHQ-9 score (r=0.824, P<0.01). Gender, family socioeconomic status, degree of psychological pressure exerted by academic studies or job seeking, amount of hours spent on Internet per day, frequency of physical exercise, and the presence or absence of anxiety symptom and depression symptom were effective factors in predicting the insomnia symptom in higher vocational college students (P<0.01 or 0.05). ConclusionFemale gender, average and below average family socioeconomic status, moderate-to-severe degree of psychological pressure exerted by academic studies or job seeking, spending 2~5 h, 5~7 h or >7 h on Internet per day, inadequate physical exercise and presence of depressive symptom are the risk factors for insomnia symptom in higher vocational college students.[Funded by Sichuan Provincial Primary Health Development Research Center in 2022, North Sichuan Medical College (number, SWFZ22-C-89)]
3.Clinical practice and prognosis of emergent transcatheter aortic valve replacement
Dao ZHOU ; Xianbao LIU ; Jiaqi FAN ; Lihan WANG ; Po HU ; Jubo JIANG ; Zhaoxia PU ; Xinping LIN ; Huajun LI ; Hanyi DAI ; Gangjie ZHU ; Yeming XU ; Jian’an WANG
Chinese Journal of Emergency Medicine 2022;31(3):368-373
Objective:To evaluate the effectiveness and prognosis of emergent transcatheter aortic valve replacement (TAVR) and to provide standardized procedural suggestion for the development of emergent TAVR in China.Methods:From January 2020 to April 2021, 12 patients who underwent emergent or salvage TAVR in the Second Affiliated Hospital Zhejiang University School of Medicine were retrospectively enrolled from the TORCH registry (Transcatheter Aortic Valve Replacement Single Center Registry in Chinese Population, a prospective cohort study; NCT02803294). Baseline, periprocedural and 30-day follow up data were collected. Post-operative data were compared with pre-operative data using Paired-Samples test.Results:Patients’ median Society of Thoracic Surgeons score (STS score) was 15.432%. There was a significant decrease of mean gradient after emergent TAVR procedure (1.69 m/s vs. 4.90 m/s, P<0.01). During the 30-day follow up, there were 1 patient (8.3%) died and 2 patients received permanent pacemaker implantation. No disabling stroke, acute kidney injury, major vascular complication occurred during the first month after emergent TAVR. Among the survival patients, there was a significant releasing of heart failure symptoms to New York Heart Association function stage Ⅰ/Ⅱ in 81.8% patients at 30-day follow up. Left ventricular ejection fraction also improved significantly from (47.4±9.5)% to 58.8±8.0% ( P= 0.026). The mean gradient were (1.57±0.30) cm 2 and no patients had a moderate or severe paravalvular leakage. Besides, a significant decrease of pro-B-type natriuretic peptide (1 089.9 pg/mL vs. 12 215.5 pg/mL , P=0.001) and troponin T (0.020 ng/mL vs. 0.337 ng/mL, P=0.003) were found at 30 days after emergent TAVR. Conclusions:For patients with severe aortic stenosis and acute cardiac decompensated, emergent TAVR is a safe and effective rescue treatment.
4.Treatment of multiple adjacent gingival recessions with an acellular dermal matrix or a connective tissue graft: a Meta-analysis.
Zhaoxia CONG ; Yuan LIU ; Jin ZHAO
West China Journal of Stomatology 2022;40(6):690-697
OBJECTIVES:
To evaluate the effectiveness of an acellular dermal matrix or a connective tissue autograft in the treatment of multiple adjacent gingival recessions through Meta-analysis.
METHODS:
Randomized controlled trials were screened in four electronic databases in English according to the inclusion and exclusion criteria until April 20, 2022. The main outcome indicators were keratinized gingival tissue width, recession depth, probing depth, clinical attachment level, complete root coverage, and root coverage esthetic score.
RESULTS:
Seven randomized controlled trials were included. After 12 months, the connective tissue graft in the control group could increase the keratinized gingival tissue width [mean difference (MD)=-0.28 (-0.47, -0.08), P=0.006], reduce the gingival recession depth [MD=0.23 (0.12, 0.35), P<0.000 1], and improve the complete root coverage [risk ratio=0.80, 95% confidence interval (0.69, 0.93), P=0.003] compared with the acellular dermal matrix in the experimental group. No significant difference was found in probing depth, clinical attachment level, and root coverage esthetic score between groups.
CONCLUSIONS
Connective tissue grafts have advantages in increasing the keratinized gingival tissue width, reducing the gingival recession depth, and improving the complete root coverage in surgeries for treating multiple adjacent gingival recessions. Acellular dermal matrices also have some clinical value in terms of operation simplicity and similar effectiveness.
Humans
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Gingival Recession/surgery*
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Acellular Dermis
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Surgical Flaps
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Esthetics, Dental
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Connective Tissue/transplantation*
5.Prevalence and clinical characteristics of hepatitis D in Southwest of China
Huimin LIU ; Zhaoxia TAN ; Jing YANG ; Yan GUO ; Maoshi LI ; Huajie LYU ; Xi LI ; Jie XIA ; Li JIANG ; Qing MAO
Chinese Journal of Experimental and Clinical Virology 2022;36(1):85-91
Objective:To study the prevalence and clinical characteristics of hepatitis D patients.Methods:A total of 832 144 HBsAg positive persons who were from infectious department of Southwest Hospital Affiliated to Army Military Medical University were screened from January 1, 2010 to December 31, 2020. A total of 13 585 subjects completed relevant Hepatitis Delta virus (HDV) biomarker tests, 157 HDV patients were evaluated. The mean age was 53 ± 13 years, with a range of 22-85 years. The majority of these subjects were male. The prevalence, clinical characteristics, the outcome of 28 days follow-up and the influencing factors of the outcome were analyzed.Results:In recent 10 years, the screening rate related to hepatitis D was only 1.6% (13 585/832 144), and the screening rate was the highest in 2011, up to 4.13% (962/23 289); The positive rate of screening was only 1.17% (157/13 346). In 2012, the positive rate of screening was the highest, up to 3.56% (58/1627). In Southwest Hospital, the source of disease was 66.24% (104/157) in Chongqing, 22.93% (36/157) in Sichuan, 8.28% (13/157) in Guizhou, 1.27% (2/157) in Yunnan, and 0.64% (1/157) in each of Jiangxi and Tibet. Of 157 patients, 29 (18.47%) had non-cirrhotic with chronic low bilirubin hepatitis, 23.57% (37/157) was non-cirrhotic with chronic high bilirubin hepatitis, 28.66% (45/157) had acute-on-chronic liver failure (ACLF), 27.39% (42/157) had compensated cirrhosis or decompensated cirrhosis, and 1.91% (3/157) had primary hepatocellular carcinoma. The incidence of disease progression was 48.89% (22/48) of chronic-on-acute liver failure>33.33%(1/3) of primary hepatocellular carcinoma>25.58%(11/43) of compensated or decompensated cirrhosis>18.92%(7/37) of non-cirrhotic with chronic high bilirubin hepatitis>6.90%(2/29) of non-cirrhotic with chronic low bilirubin hepatitis ( P<0.05). Among them, 7.64%(12/157) had hepatic encephalopathy, and the rate of disease progression was 83.33%(10/12) ( P<0.05); 3.82% (6/157) of them had combined with other hepatophilic viruses including hepatitis C virus (HCV), Epstein-barr virus, (EBV), Cytomegalovirus (CMV) infections. Logistic regression analysis showed that old age, complication with hepatic encephalopathy, hyperbilirubinemia and prolonged coagulation time were independent risk factors affecting the outcome of hepatitis D. Conclusions:In recent 10 years, the screening rate of hepatitis D is low and the positive rate is not high. It should be noted that HDV infection can accelerate the progress of hepatitis and increase the risk of adverse liver outcomes.
6.Influence of peer support education on psychological adaptation of breast cancer patients
Liling JIANG ; Zhaoxia LIU ; Ying LIAO ; Jianning WANG ; Liqun LI
Chinese Journal of Practical Nursing 2021;37(18):1367-1372
Objective:To explore the influence of peer support education on psychosocial adaptation and psychological distress of breast cancer patients.Methods:Using non-simultaneous experimental research methods, a total of 51 breast cancer patients admitted to the department of breast surgery, the First Affiliated Hospital of Nanchang University from June to August 2019 were selected as the control group, and 53 breast cancer patients admitted from September to December 2019 were selected as the intervention group. The control group received routine education, while the intervention group received peer education on the basis of routine education. After 4 months of intervention, the differences of psychosocial adaptation and psychological pain were compared between the two groups.Results:After 4 months of intervention, 49 cases in the control group and 51 cases in the intervention group completed the study. In the psychosocial adaptation scale, the scores of anxiety/depression, self-esteem, self-acceptance, self-control and self-efficacy belonging in the intervention group were (29.43±2.83), (32.08±3.07), (28.10±2.62), (28.08±3.27), (31.53±3.73) points, which were higher than (27.67±3.96), (30.14±2.54), (25.94±2.91), (25.16±2.95), (30.02±2.70) points in the control group after the intervention, and difference statistically significant ( t values were -4.680 to -2.312, P<0.05). The score of psychological pain in the intervention group (2.37±1.15) points was significantly lower than that in the control group (3.57±0.98) points, and difference was statistically significant ( t value was 4.867, P<0.05). The number of patients with mild and moderate psychological pain in the intervention group was 51 cases accounting for 100% (51/51), which was higher than 48 cases accounting for 98% (48/49) in the control group, and difference was statistically significant ( χ2 value was 12.272, P<0.05). Conclusions:Peer education can effectively improve the psychosocial adaptability of breast cancer patients and reduce their pain level.
7.The phenotypes and genotypes in 314 patients with isolated methylmalonic acidemia
Lulu KANG ; Yupeng LIU ; Ming SHEN ; Zhehui CHEN ; Jinqing SONG ; Ruxuan HE ; Yi LIU ; Yao ZHANG ; Hui DONG ; Mengqiu LI ; Ying JIN ; Hong ZHENG ; Qiao WANG ; Yuan DING ; Xiyuan LI ; Dongxiao LI ; Haixia LI ; Xueqin LIU ; Huijie XIAO ; Yuwu JIANG ; Hui XIONG ; Chunyan ZHANG ; Zhaoxia WANG ; Yun YUAN ; Desheng LIANG ; Yaping TIAN ; Yanling YANG
Chinese Journal of Pediatrics 2020;58(6):468-475
Objectives:To summarize the clinical and genetic characteristics of the patients with isolated methylmalonic acidemia and investigate the strategies for the diagnosis, treatment and prevention.Methods:Three hundred and fourteen patients (180 males, 134 females) with isolated methylmalonic acidemia were ascertained from 26 provinces or cities across the mainland of China during January 1998 to March 2020. Genetic analysis was performed by Sanger sequencing, gene panel sequencing, whole exome sequencing, multiplex ligation-dependent probe amplification or quantitative PCR. According to the age of onset, the patients were divided to early-onset group (≤12 months of age) and the late-onset group (>12 months of age). They were treated by cobalamin, L-carnitine and (or) special diet and symptomatic treatment. Statistical analysis was done using Chi-square test.Results:Fifty-eight of 314 (18.5%) patients were detected by Newborn screening using liquid chromatography tandem mass spectrometry. Five cases (1.6%) had a postmortem diagnosis. Two hundred and fifty-one patients (79.9%) were clinically diagnosed with an age of onset ranged from 3 hours after birth to 18 years. One hundred and fifty-nine patients (71.0%) belonged to early-onset groups, 65 patients (29.0%) belonged to the late-onset group. The most common symptoms were metabolic crises, psychomotor retardation, epilepsy, anemia and multiple organ damage. Metabolic acidosis and anemia were more common in early-onset patients than that in late-onset patients (20.8%(33/159) vs. 9.2% (6/65), 34.6% (55/159) vs. 16.9% (11/165), χ 2=4.261, 6.930, P=0.039, 0.008). Genetic tests were performed for 236 patients (75.2%), 96.2%(227/236) had molecular confirmation. One hundred and twenty-seven variants were identified in seven genes (MMUT, MMAA, MMAB, MMADHC, SUCLG1, SUCLA2, and MCEE), of which 49 were novel. The mut type, caused by the deficiency of methylmalonyl-CoA mutase, was the most common ( n=211, 93%) cause of this condition. c.729_730insTT, c.1106G>A and c.914T>C were the three most frequent mutations in MMUT gene. The frequency of c.914T>C in early-onset patients was significantly higher than that in late-onset patients (8.3% (18/216) vs. 1.6% (1/64), χ 2=3.859, P=0.037). Metabolic crisis was more frequent in mut type than the other types (72.6% (114/157) vs. 3/13, χ 2=13.729, P=0.001),developmental delay and hypotonia were less frequent in mut type (38.2% (60/157) vs. 9/13, 25.5% (40/157) vs. 8/13, χ 2=4.789, 7.705, P=0.030, 0.006). Of the 58 patients identified by newborn screening, 44 patients (75.9%) who were treated from asymptomatic phase developed normally whereas 14 patients (24.1%) who received treatment after developing symptoms exhibited varying degrees of psychomotor retardation. Conclusions:The characteristics of phenotypes and genotypes among Chinese patients with isolated methylmalonic acidemia were analyzed. Expanded the mutation spectrum of the associated genes. Because of the complex clinical manifestations and severe early onset of isolated methylmalonic acidemia, Newborn screening is crucial for early diagnosis and improvement of prognosis. MMUT gene is recommended for carrier screening as an effort to move the test earlier as a part of the primary prevention of birth defects.
8.A triage strategy in advanced ovarian cancer management based on multiple predictive models for R0 resection: a prospective cohort study.
Zheng FENG ; Hao WEN ; Zhaoxia JIANG ; Shuai LIU ; Xingzhu JU ; Xiaojun CHEN ; Lingfang XIA ; Junyan XU ; Rui BI ; Xiaohua WU
Journal of Gynecologic Oncology 2018;29(5):e65-
OBJECTIVE: To present the surgical outcomes of advanced epithelial ovarian cancer (AEOC) since the implementation of a personalized approach and to validate multiple predictive models for R0 resection. METHODS: Personalized strategies included: 1) Non-invasive model: preoperative clinico-radiological assessment according to Suidan criteria with a predictive score for all individuals. Patients with a score 0–2 were recommended for primary debulking surgery (PDS, group A), or otherwise were counseled on the choices of PDS, neoadjuvant chemotherapy (NAC, group B) or staging laparoscopy (S-LPS). 2) Minimally invasive model: S-LPS with a predictive index value (PIV) according to Fagotti. Individuals with a PIV < 8 underwent PDS (group C) or otherwise received NAC (group D). Intraoperative assessment (with Eisenkop, peritoneal cancer index [PCI], and Aletti scores) and surgical results were prospectively collected. RESULTS: Between September 2015 and August 2017, 161 pathologically confirmed epithelial ovarian cancer patients were included. A total of 52 (32.3%) patients had a predictive score of 0–2, and 109 (67.7%) patients had a score ≥ 3. Among these individuals, 41 (25.5%) patients received S-LPS. Finally, 110 (68.3%) patients underwent PDS (A+C), and 51 (31.7%) patients received NAC (B+D). The R0 resection rates in PDS and NAC patients were 56.4% and 60.8%, respectively. The area under the curve (AUC) of Suidan criteria was 0.548 for group (A+C). The AUC of Fagotti score was 0.702 for group C. The AUC of Eisenkop, PCI, and Aletti scores were 0.808, 0.797, and 0.524, respectively. CONCLUSION: The Suidan criteria were not effective in these AEOC patients. S-LPS was helpful in decision-making for PDS and should be endorsed in the future.
Area Under Curve
;
Cohort Studies*
;
Drug Therapy
;
Humans
;
Laparoscopy
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Ovarian Neoplasms*
;
Prospective Studies*
;
Research Design
;
Triage*
9.Treatment experience and efficacy of precise surgery for hepatic caudate lobe involved lesions
Chuang PENG ; Shayong PENG ; Weimin YI ; Ou LI ; Pingzhou YANG ; Chao GUO ; Sulai LIU ; Zhaoxia TAN ; Jinshu WU ; Bo JIANG
Chinese Journal of Digestive Surgery 2018;17(12):1181-1186
Objective To explore the treatment experience and efficacy of precise surgery for hepatic caudate lobe involved lesions.Methods The retrospective cross-sectional study was conducted.The clinicopathological data of 127 patients with hepatic caudate lobe involved lesions who were admitted to Hunan Provincial People's Hospital between January 2012 and December 2016 were collected,including 71 of malignant tumors,52 of benign lesions and 4 of other diseases.Anatomical hepatectomy was performed in patients via left approach,right approach,anterior approach,left combined with right approach,left and right combined with anterior approach,left and right combined with para-liver hanging tape approach,anterior combined with left approach,retrograde approach according to their conditions.Observation indicators:(1) intraoperative and postoperative recovery situations;(2) follow-up and survival situations.Follow-up using outpatient examination and telephone interview was done to detect postoperative survival of patients up to February 2018.Measurement data with normal distribution were represented as (x)±s.Measurement data with skewed distribution were described as M (range).Kaplain-Meier method was used to calculate survival rate.Results (1) Intraoperative and postoperative recovery situations:all the 127 patients underwent successful operation without perioperative death,including 111 of open surgery and 16 of laparoscopic surgery.Of 127 patients,single total caudate lobectomy and partial caudate lobectomy were performed in 2 and 13 patients,single hepatic segmentectomy combined with total caudate lobectomy,double hepatic segmentectomy combined with total caudate lobectomy,hepatic trisegmentectomy combined with total caudate lobectomy,left hemitectomy combined with total caudate lobectomy,left hepatic trilobectomy combined with total caudate lobectomy,right hemitectomy combined with total caudate lobectomy,right hepatic trilobectomy combined with total caudate lobectomy were performed in 6,4,5,1,1,30,3 patients respectively,single hepatic segmentectomy combined with partial caudate lobectomy,double hepatic segmentectomy combined with partial caudate lobectomy,left hemitectomy combined with partial caudate lobectomy,left hepatic trilobectomy combined with partial caudate lobectomy,right hemitectomy combined with partial caudate lobectomy,right hepatic trilobectomy combined with partial caudate lobectomy were performed in 3,3,41,2,5,8 patients respectively,including 78 via left approach,29 via right approach,2 via anterior approach,7 via left combined with right approach,2 via left and right combined with anterior approach,6 via left and right combined with para-liver hanging tape approach,1 via anterior combined with left approach,2 via retrograde approach.The operation time,time of first hepatic hilum occlusion,volume of intraoperative blood loss and duration of postoperative hospital stay were 285 minutes (range,188-670 minutes),47 minutes(range,30-150 minutes),294 mL(range,20-2 500 mL) and 10 days (range,6-27 days) respectively.Thirty-four patients had postoperative complications,including 21 with abdominal ascites,20 with pleural effusion,6 with incisional infection,5 with hemorrhage,4 with bile leakage,2 with pulmonary infection (1 patient combined with multiple complications).One patient underwent reoperation after ineffective conservative treatment for hemorrhage within postoperative 24 hours and other 33 were cured by conservative treatment.(2) Follow-up and survival situations:of 127 patients,124 including 68 of malignant tumors and 56 of non-malignant tumors were followed up for 2-71 months with a median time of 33 months.During the follow-up,1-,3-,5-year overall survival rates were 83.1%,63.4%,22.5% in 68 patients with malignant tumors,89.3%,71.4%,57.1% in 28 patients with hilar cholangiocarcinoma and 76.9%,46.2%,23.1% in 26 with hepatocellular carcinoma.All the 56 patients with non-malignant tumors survived well.Conclusions Anatomical hepatectomy using precise surgery is safe and feasible.Preoperative precise evaluation and surgical procedure design,intraoperative vascular control and surgical plane mastering are keys to success.
10.Antimicrobial resistance profile of clinical isolates in hospitals across China: report from the CHINET Surveillance Program, 2017
Fupin HU ; Yan GUO ; Demei ZHU ; Fu WANG ; Xiaofei JIANG ; Yingchun XU ; Xiaojiang ZHANG ; Zhaoxia ZHANG ; Ping JI ; Yi XIE ; Mei KANG ; Chuanqing WANG ; Aimin WANG ; Yuanhong XU ; Jilu SHEN ; Ziyong SUN ; Zhongju CHEN ; Yuxing NI ; Jingyong SUN ; Yunzhuo CHU ; Sufei TIAN ; Zhidong HU ; Jin LI ; Yunsong YU ; Jie LIN ; Bin SHAN ; Yan DU ; Sufang GUO ; Lianhua WEI ; Fengmei ZOU ; Hong ZHANG ; Chun WANG ; Yunjian HU ; Xiaoman AI ; Chao ZHUO ; Danhong SU ; Ruizhong WANG ; Hua FANG ; Bixia YU ; Yong ZHAO ; Ping GONG ; Dawen GUO ; Jinying ZHAO ; Wenen LIU ; Yanming LI ; Yan JIN ; Chunhong SHAO ; Kaizhen WEN ; Yirong ZHANG ; Xuesong XU ; Chao YAN ; Hua YU ; Xiangning HUANG ; Shanmei WANG ; Yafei CHU ; Lixia ZHANG ; Juan MA ; Shuping ZHOU ; Yan ZHOU ; Lei ZHU ; Jinhua MENG ; Fang DONG ; Hongyan ZHENG ; Han SHEN ; Wanqing ZHOU ; Wei JIA ; Gang LI ; Jinsong WU ; Yuemei LU
Chinese Journal of Infection and Chemotherapy 2018;18(3):241-251
Objective To investigate the antimicrobial resistance profile of the clinical isolates collected from selected hospitals across China. Methods Twenty-nine general hospitals and five children's hospitals were involved in this program. Antimicrobial susceptibility testing was carried out according to a unified protocol using Kirby-Bauer method or automated systems. Results were interpreted according to CLSI 2017 breakpoints. Results A total of 190 610 clinical isolates were collected from January to December 2017, of which gram negative organisms accounted for 70.8% (134 951/190 610) and gram positive cocci 29.2% (55 649/190 610). The prevalence of methicillin-resistant strains was 35.3% in S. aureus (MRSA) and 80.3% in coagulase negative Staphylococcus (MRCNS) on average. MR strains showed much higher resistance rates to most of the other antimicrobial agents than MS strains. However, 91.6% of MRSA strains were still susceptible to trimethoprim-sulfamethoxazole, while 86.2% of MRCNS strains were susceptible to rifampin. No staphylococcal strains were found resistant to vancomycin. E. faecalis strains showed much lower resistance rates to most of the drugs tested (except chloramphenicol) than E. faecium. Vancomycin-resistant Enterococcus (VRE) was identified in both E. faecalis and E. faecium. The identified VRE strains were mainly vanA, vanB or vanM type based on phenotype or genotype. The proportion of PSSP or PRSP strains in the non-meningitis S.pneumoniae strains isolated from children decreased but the proportion of PISP strains increased when compared to the data of 2016. Enterobacteriaceae strains were still highly susceptible to carbapenems. Overall, less than 10% of these strains (excluding Klebsiella spp.) were resistant to carbapenems. The prevalence of imipenem-resistant K. pneumoniae increased from 3.0% in 2005 to 20.9% in 2017, and meropenem-resistant K. pneumoniae increased from 2.9% in 2005 to 24.0% in 2017, more than 8-fold increase. About 66.7% and 69.3% of Acinetobacter (A. baumannii accounts for 91.5%) strains were resistant to imipenem and meropenem, respectively. Compared with the data of year 2016, P. aeruginosa strains showed decreasing resistance rate to carbapenems. Conclusions Bacterial resistance is still on the rise. It is necessary to strengthen hospital infection control and stewardship of antimicrobial agents. The communication between laboratorians and clinicians should be further improved in addition to surveillance of bacterial resistance.

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