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  • 1.
    Medical guidelines for fever clinic patients
    National Medical Quality Control Center for Infectious Diseases
    Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) 2023, 17 (06): 361-368. DOI: 10.3877/cma.j.issn.1674-1358.2023.06.001
    Abstract (118) HTML (0) PDF (812 KB) (21)

    发热门诊是发现急性传染病尤其是急性呼吸道传染病的哨点,是防止急性呼吸道传染病在医疗机构内暴发的第一道屏障,也在防止急性呼吸道传染病在社区进一步传播中发挥重要作用。为避免呼吸道传染病在医院内传播,发热门诊应当对常见急性呼吸道传染病开展筛查。筛查期间,发热门诊应当具备一定的抢救能力,对需要抢救的患者及时开展抢救,确保筛查患者的医疗安全。为落实国家卫生健康委员会发布的《全面提升医疗质量行动计划(2023-2025年)》,根据《中华人民共和国传染病防治法》、《医疗机构传染病预检分诊管理办法》、《医院感染管理办法》、《医院隔离技术规范》、《医疗机构消毒技术规范》、《发热门诊设置管理规范》等相关法规标准制定本指引。

  • 2.
    Diagnosis and treatment of mycoplasma pneumonia in children
    Yang Zhao
    Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) 2023, 17 (05): 359-360. DOI: 10.3877/cma.j.issn.1674-1358.2023.05.011
    Abstract (66) HTML (0) PDF (667 KB) (2)

    本视频重点介绍儿童支原体肺炎的定义、临床特征、影像学表现、实验室检查、诊断与鉴别诊断、常见肺内外并发症的早期识别和诊断、临床分型、重症和危重症早期预警指标、治疗原则以及住院指征等相关内容。

    一、定义

    1.肺炎支原体肺炎(MPP):指肺炎支原体(Mycoplasma pneumoniae,MP)感染引起的肺部炎症,可累及支气管、细支气管、肺泡和肺间质。

    2.难治性肺炎支原体肺炎(refractory mycoplasma pneumoniae pneumonia,RMPP):MPP患者使用大环内酯类抗菌药物正规治疗7 d及以上,仍持续发热、临床征象及肺部影像学所见加重、出现肺外并发症者。

    3.大环内酯类药物无反应性肺炎支原体肺炎(macrolide -unresponsive MPP,MUMPP):MPP患者经过大环内酯类抗菌药物正规治疗72 h,仍持续发热,临床征象及肺部影像学无改善或呈进一步加重的MPP。

    4.重症肺炎支原体肺炎(severe MPP,SMPP):MPP病情严重,符合重症判定标准。

    5.危重症肺炎支原体肺炎:指患者病情迅速进展、出现呼吸衰竭或危及生命的肺外并发症,需要进行生命支持治疗的少数SMPP。

    二、临床表现

    MPP多见于5岁及以上儿童,但5岁以下儿童也可发病。以发热和咳嗽为主要临床表现,可伴有头痛、流涕、咽痛、耳痛等。发热以中高热为主,持续高热者预示病情重。咳嗽较为剧烈,可类似百日咳样咳嗽。部分患儿有喘息表现,以婴幼儿多见。肺部早期体征可不明显,随病情进展可出现呼吸音降低和干、湿性啰音。

    重症肺炎支原体肺炎(SMPP)多发生于病程约为1周,伴有肺内和肺外并发症,可出现塑形性支气管炎(plastic bronchitis,PB)、中等-大量胸腔积液、大面积肺实变和坏死、肺栓塞(pulmonary embolism,PE)、气促或呼吸困难,发生肺栓塞的患儿还可出现胸痛和咯血。发生肺外并发症时可出现相应脏器损伤的临床表现:肺外并发症可发生于皮肤黏膜、神经系统、血液系统以及循环系统等,出现相应各系统受损的表现。

    少数MPP可发展为危重症,常以呼吸困难和呼吸衰竭为突出表现,急性呼吸窘迫综合征,如大气道发生塑形性支气管炎、弥漫性细支气管炎和严重肺栓塞等。个别病例以严重肺外并发症为主要表现。

    三、影像学表现

    影像学表现是临床判断病情严重程度和评估预后的主要依据之一,可见肺纹理增粗,支气管壁增厚,"树芽征",小叶间隙增厚,网格影,肺泡炎症改变,多形态,大小不等和密度不均的病灶可混合存在;部分MPP可表现为局限或弥漫性细支气管炎特征。

    四、实验室检查

    实验室检查包括病原学和血清学检查、一般检查和MP耐药性检测。

    五、诊断

    符合以上临床和影像学表现,结合以下任何1项或2项,即可诊断为MPP:①单份血清MP抗体滴度≥ 1︰160(PA法);病程中双份血清MP抗体滴度上升4倍及以上;②MP DNA或RNA阳性。

    六、鉴别诊断

    需要与病毒性肺炎鉴别:腺病毒肺炎、流感病毒肺炎和新型冠状病毒肺炎鉴别;与细菌性肺炎和肺结核鉴别。

    七、常见肺内外并发症的早期识别和诊断

    1.肺内并发症:塑形性支气管炎、肺栓塞、胸腔积液、坏死性肺炎、支气管哮喘急性发作和混合感染。

    2.肺外并发症:神经系统、循环系统、血液系统、皮肤黏膜损害和其他表现。

    八、临床分型

    临床分型分为轻型、重型和危重型。

    九、重症和危重症早期预警指标

    重症和危重症早期预警指标:治疗后72 h持续高热不退;存在感染中毒症状;病情和影像学进展迅速,多肺叶浸润;C-反应蛋白(C-reactionprotein,CRP)、乳酸脱氢酶(lactate dehydrogenase,LDH)、D-二聚体和丙氨酸氨基转移酶(alanine aminotransferase,ALT)水平显著升高,出现时间越早,病情越重;治疗后低氧血症和呼吸困难难以缓解或进展;存在基础疾病,包括哮喘和原发性免疫缺陷病等疾病;大环内酯类抗菌药物治疗延迟。

    九、治疗原则

    最佳治疗窗口期为发热后5~10 d以内,病程14 d以后仍持续发热,病情无好转者,常遗留后遗症。鉴于MPP临床表现的异质性,应根据分型制定个体化的治疗方案。轻症患儿除抗MP治疗外,不应常规使用全身性糖皮质激素治疗;重症患者应采取不同侧重的综合治疗(抗感染、糖皮质激素、支气管镜、抗凝等联合),既要关注混合感染,也要准确识别和治疗过强炎症反应及细胞因子风暴,若不及时控制,将可能导致混合感染和后遗症的发生率升高。

    十、支原体肺炎住院指征

    出现以下任意1条,需要考虑住院治疗:高热持续5 d;发热超过7 d;出现喘息或气促或呼吸困难;CRP > 40 mg/L;出现肺大叶实变;有肺外脏器症状如头疼、呕吐、精神不佳或皮疹或白细胞减少以及血小板减少等。

  • 3.
    Progress on diagnosis and treatment of post corona virus disease 2019 pulmonary fibrosis
    Anqi Li, Yilin Xu, Tianxin Xiang
    Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) 2023, 17 (05): 294-298. DOI: 10.3877/cma.j.issn.1674-1358.2023.05.002
    Abstract (59) HTML (7) PDF (801 KB) (10)

    Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused a large number of patients with corona virus disease 2019 (COVID-19) in the world, with the evolution of the disease, the problem of pulmonary fibrosis in some patients after the acute stage has become increasingly prominent. Currently, scholars call it post COVID-19 pulmonary fibrosis (PCPF). Due to the continuous mutation of the virus and different medical levels in different parts of the world, the incidence, diagnosis and treatment of PCPF vary slightly among different studies. The degree of fibrosis significantly affects the clinical manifestations of patients, prolonged symptoms of patients, the need for a large number of medical resources and long-term professional care. At present, the diagnosis of PCPF depends on clinical combination with CT and pulmonary function test (PFT), and the treatment depends on previous treatment experience of other pulmonary fibrosis diseases, and there is a lack of unified and standardized treatment plan. Although many scholars have carried out research for this, there is still no very effective treatment. During this review the pathogenesis and mechanism of PCPF are summarized, and the research progress of related diagnosis and treatment is reviewed.

  • 4.
    Risk factors related to pulmonary infection after thoracoscopic pulmonary nodules
    Jingxin Chen, Mei Li, Jieya Chen
    Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) 2023, 17 (04): 238-243. DOI: 10.3877/cma.j.issn.1674-1358.2023.04.004
    Abstract (51) HTML (0) PDF (727 KB) (8)
    Objective

    To investigate the risk factors for the development of pulmonary infections after thoracoscopic surgery for pulmonary nodules.

    Methods

    Total of 1 526 patients admitted to the Department of Thoracic Surgery of the First Affiliated Hospital of Guangzhou Medical University with confirmed diagnosis of thoracoscopic surgery for pulmonary nodules treatment from June 2020 to June 2021 were collected. According to whether pulmonary infection occurred after surgery, the patients were divided into pulmonary infection group and control group. The clinical baseline data and surgical data of patients in both groups were collected. The clinical and surgical influencing factors of patients with lung nodules after thoracoscopy were analyzed by single factor analysis, and the risk factors of pulmonary infection after thoracoscopy were analyzed by Logistic regression.

    Results

    Among the 1 526 patients, 700 patients (45.87%) occurred pulmonary infection (pulmonary infection group), while 826 patients (54.13%) did not develop pulmonary infection (control group). The proportion of male patients (61.86%), smoking history (66.43%), nodule size > 2 cm (66.57%), diabetes history (57.29%), resection area (56.43%), smoking index [ (538.01 ± 18.26) annual expenditure] and intraoperative blood loss [(121.53 ± 12.16) ml] of patients in pulmonary infection group were all significantly higher than those in control group (all P < 0.05). The operative time [(202.15 ± 77.83) min] in the pulmonary infection group were significantly longer than that of control group (all P < 0.05). Logistic regression analysis results showed that male (OR = 5.226, 95%CI: 2.600-10.501, P < 0.001), history of smoking (OR = 2.484, 95%CI: 1.137-5.427, P = 0.022), smoking index (OR = 3.304, 95%CI: 1.614-6.767, P = 0.001), history of diabetes (OR = 3.569, 95%CI: 1.684-7.564, P < 0.001), nodule size > 2 cm (OR = 6.157, 95%CI: 2.855-13.276, P < 0.001), intraoperative blood loss (OR = 7.572, 95%CI: 3.166-18.112, P < 0.001), operative time (OR = 10.180, 95%CI: 4.251-24.374, P < 0.001) and pulmonary segmental resection (OR = 9.485, 95%CI: 1.398-64.363, P = 0.021) were all risk factors for pulmonary infection in patients with thoracoscopic surgery for pulmonary nodules.

    Conclusions

    The factors of pulmonary infection in patients with pulmonary nodules after thoracoscopic surgery include male, smoking, nodule size, intraoperative blood loss, diabetes, operation time and pulmonary segmental resection, which should be prevented and controlled clinically to reduce the risk of infection in patients.

  • 5.
    Predictive effects of platelet count and red blood cell distribution width on the prognosis of patients with acute hepatitis E-induced liver failure
    Zhaoming Li, Ying Zhang, Xianjin Liu
    Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) 2023, 17 (05): 307-314. DOI: 10.3877/cma.j.issn.1674-1358.2023.05.004
    Abstract (50) HTML (0) PDF (826 KB) (8)
    Objective

    To investigate the value of platelet count (PLT) and red blood cell distribution width (RDW) in predicting the prognosis of acute hepatitis E-induced liver failure.

    Methods

    Total of 128 patients with acute hepatitis E-induced liver failure who were hospitalized in Nantong Third People’s Hospital, Affiliated Nantong Hospital 3 of Nantong University from January 2018 to December 2022 were selected. General data such as gender and age, liver and kidney function, blood routine, coagulation index, inflammation index and alpha-fetoprotein (AFP) of patients within one week after admission were collected, and the model of end-stage liver disease (MELD) score and model of end-stage liver disease combined serum sodium (MELD-Na) score were calculated. According to the survival status at 12 weeks after treatment, the enrolled patients were divided into survival group (104 cases) and death group (24 cases). The levels of total bilirubin (TBil), peripheral white blood cell count (WBC), red blood cell distribution width (RDW), MELD-Na score, serum glutamyltransferase (GGT), total cholesterol (TC), apolipoprotein A (ApoA), fibrinogen (FIB) and antithrombin-Ⅲ (AT-Ⅲ), platelet count (PLT), blood sodium (Na) and other indicators were compared between the two groups. Stata 14.0 software was used for statistical analysis. Logistic regression analysis was used to screen the risk factors affecting the prognosis of patients. The prognostic efficacy of these risk factors in hepatitis E-induced liver failure were evaluated by receiver operating characteristic curve (ROC).

    Results

    Among the 128 patients with acute hepatitis E-induced liver failure, 116 cases were males (90.62%) and 12 cases were females (9.38%), with an average age of (60.25 ± 9.96) years old. Among the 128 patients, 52 cases were complicated with infection, 12 cases were complicated with hepatic encephalopathy, and 55 cases were treated with artificial liver. In the death group, age (t =-0.35, P = 0.36), sex (χ2 = 0.04, P = 0.85), incidence of infection (χ2 = 1.97, P = 0.16), incidence of hepatic encephalopathy (χ2 = 1.85, P = 0.17) and treatment rate of artificial liver (χ2 = 3.16, P = 0.08). The difference was statistically significant compared with survival group. Serum TBil (t =-3.18, P < 0.001), WBC (t =-2.41, P = 0.01), RDW (Z =-2.40, P = 0.02) and MELD-Na score (t =-2.18, P = 0.02) of patients in death group were significantly higher than those of survival group, with significant differences. GGT (Z = 2.40, P = 0.02), TC (t = 2.03, P = 0.02), ApoA (Z = 3.27, P < 0.001), FIB (Z = 2.30, P = 0.02), AT-Ⅲ (t = 3.25, P < 0.001), PLT (t = 3.42, P < 0.001), Na (Z = 2.58, P = 0.01) levels were significantly lower than those of survival group, the differences were statistically significant. Multiple Logistic regression analysis indicated RDW (OR = 1.45, 95%CI: 1.04-2.12, P = 0.03) and PLT count (OR = 0.97, 95%CI: 0.95-0.99, P = 0.04) were all independent prognostic factors of patients with acute hepatitis E-induced liver failure at 12 weeks. Logistic regression analysis results obtained regression equation LogitP = 26.01-0.03 × PLT + 0.37 × RDW, according to a model including PLT and RDW which can be obtained and named PRM. Receiver operating characteristic (ROC) curves of PLT, RDW and PRW were plotted respectively, and the area under the curve (AUC) were calculated. The optimal Cut-off value of PLT for predicting 12-week prognosis of patients with acute hepatitis E-induced liver failure was 157.5, the sensitivity and specificity were 49% and 93%, respectively, and the AUC was 0.7303. The optimal Cut-off value of RDW for predicting prognosis was 16.75, the sensitivity and specificity were 53% and 92%, respectively, and the AUC was 0.6990. The optimal Cut-off value of PRM was 28.33, the sensitivity and specificity were 67% and 92%, respectively, and the AUC was 0.8369. The predictive value of PRM was significantly better than that of PLT (Z = 2.29, P = 0.02).

    Conclusions

    Blood RDW and blood PLT count are independent factors of 12-week prognosis in patients with acute hepatitis E-induced liver failure. PRM model consisting of PLT and RDW could be used as a simple and accurate prognostic indicator to evaluate the prognosis of acute hepatitis E-induced liver failure.

  • 6.
    Expert consensus on quality improvement of influenza diagnosis and treatment
    National Medical Quality Control Center for Infectious Diseases
    Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) 2023, 17 (06): 372-378. DOI: 10.3877/cma.j.issn.1674-1358.2023.06.003
    Abstract (48) HTML (1) PDF (854 KB) (8)

    流行性感冒在诊疗过程中存在流感样病例病原学检测率偏低、病原学确诊率偏低、抗病毒药物使用不及时、抗菌药物使用率高及重症病例救治能力不足等问题。为提高流行性感冒诊治质量,国家卫生健康委在2023年11月13日发布了《感染性疾病专业医疗质量控制指标(2023年版)》,包括抗流感病毒药物使用前流感病原学诊断阳性率、门诊流感患者抗菌药物使用率、住院流感患者抗菌药物使用率、住院流感重症患者病死率。为指导各级各类医疗机构应用上述质控指标,国家感染性疾病医疗质量控制中心组织专家制订本共识,对流行性感冒诊治关键质控环节、质控指标意义、质控指标信息化采集、医院和科室流行性感冒诊治质量持续改进提出了建议。

  • 7.
    Current situation and prospect of application of decision tree algorithm based on machine learning in prognosis prediction of bloodstream infection
    Shuaihua Fan, Wei Guo, Jun Guo
    Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) 2023, 17 (05): 289-293. DOI: 10.3877/cma.j.issn.1674-1358.2023.05.001
    Abstract (45) HTML (3) PDF (977 KB) (13)

    As a serious systemic infection, the prevalence of bloodstream infection has gradually increased in recent years, which is one of the main causes of poor prognosis of patients, so it is particularly important to identify high-risk patients with poor prognosis early and timely. However, the traditional statistical analysis of bloodstream infection prognosis prediction can not meet the clinical needs in terms of reliability and validity, and since machine learning algorithms have achieved good application results in the construction of prediction models for some clinical problems, showing their application prospects to improve the accuracy of clinical diagnosis and treatment, this paper mainly reviews the application status of decision tree algorithm in the prognosis prediction of bloodstream infection, and prospects its application in the prediction of bloodstream infection prognosis by comparing its advantages and disadvantages with traditional methods. This review aims to explore better predictive methods for early clinical identification of high-risk patients and minimize the mortality rate of bloodstream infections.

  • 8.
    Construction of a risk nomograph model for plastic bronchitis caused by refractory mycoplasma pneumoniae pneumonia in children
    Mei Yang, Chun Zhou, Aihong Zhao, Qin Wang
    Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) 2023, 17 (04): 274-281. DOI: 10.3877/cma.j.issn.1674-1358.2023.04.009
    Abstract (42) HTML (2) PDF (1326 KB) (3)
    Objective

    To investigate the incidence and main risk factors of plastic bronchitis (PB) caused by refractory Mycoplasma pneumoniae pneumonia (RMPP) in children, and to construct a quantitative risk nomograph model for guiding early clinical high-risk stratification.

    Methods

    The clinical data of 350 children diagnosed as RMPP admitted to Jianhu Clinical Medical College, Yangzhou University from February 2020 to February 2023 were analyzed, retrospectively, and were divided into modeling set (280 cases) and validation set (70 cases) by 4︰1, randomly. The model set was divided into PB group (120 cases) and no PB group (160 cases) according to bronchofiberscopy and histopathological findings. The clinical manifestations, blood biochemistry and chest CT signs of patients in different groups were compared, the most different indicators were screened by LASSO regression, the main risk factors were screened by multivariate Logistic regression, and the prediction model was drawn by histogram. The area under the curve (AUC) of plastic bronchitis was predicted by receiver operating curve (ROC) calculation model. The goodness of fit of the model was evaluated by Hosmer-Lemeshow test. The consistency and benefit of the model were evaluated by calibration curve and decision curve.

    Results

    The modeling set diagnosed 120 cases of PB (42.9%, 120/280) and the verification set diagnosed 25 cases of PB (35.7%, 25/70). The positive rates of PB and other general clinical data were comparable between the two groups (all P > 0.05). Single-factor comparison showed that peak body temperature (t = 3.659, P = 0.001), fever duration (t = 5.021, P < 0.001), hypoxemia (χ2 = 4.060, P = 0.044), glucocorticoid (χ2 = 7.154, P = 0.007), intravenous gamma globulin (χ2 = 16.169, P < 0.001), atelectasis (χ2 = 13.810, P < 0.001), pleural effusion (χ2 = 11.118, P < 0.001), neutrophil percentage (N%) (Z =1.659, P < 0.001), C-reactive protein (CRP) (Z =15.659, P < 0.001), procalcitonin (PCT) (Z = 9.654, P < 0.001), interleukin 6 (IL-6) (Z = 23.324, P < 0.001), alanine aminotransferase (ALT) (Z = 3.425, P < 0.001), lactate dehydrogenase (LDH) (Z = 123.325, P < 0.001) and D-dimer (Z = 5.246, P < 0.001) were significantly higher than those without PB, while platelet count (PLT) was significantly decreased (Z = 1.995, P < 0.001). Total of 6 non-collinear indexes were selected by LASSO regression, namely peak body temperature, atelectasis, pleural effusion, N%, IL-6 and LDH. Multivariate Logistic regression showed that peak body temperature (OR = 2.756, 95%CI: 2.03-3.567, P < 0.001), atelectasis (OR = 3.526, 95%CI: 2.869-4.123, P < 0.001), pleural effusion (OR = 2.032, 95%CI: 1.456-2.758, P < 0.001), N% (OR = 1.856, 95%CI: 1.235-2.632, P < 0.001), IL-6 (OR = 1.525, 95%CI: 1.124-2.201, P < 0.001), and LDH (OR = 1.302, 95%CI: 1.052-1.968, P < 0.001) were all the risk factors to PB caused by RMPP. The nomogram model was established by R software, with a total score of 500 points. The AUC of the model for predicting PB in model set and validation set were 0.902 (95%CI: 0.856-0.945, P < 0.001) and 0.866 (95%CI: 0.823-0.914, P < 0.001), respectively. Both the calibration curve and the decision curve showed that the model had good degree of coincidence and clinical net benefit ratio.

    Conclusions

    Children with RMPP have a high incidence of PB, peak body temperature, atelectasis, pleural effusion, N%, IL-6 and LDH are all main risk factors; a nomograph model was developed that has good potential for guiding clinical evaluation of high-risk PB and is worth promoting.

  • 9.
    Training and assessment scheme for fever clinic doctors
    National Medical Quality Control Center for Infectious Diseases
    Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) 2023, 17 (06): 369-371. DOI: 10.3877/cma.j.issn.1674-1358.2023.06.002
    Abstract (40) HTML (0) PDF (717 KB) (3)

    发热门诊是各级各类医疗机构发现急性呼吸道传染病的哨点,是防止急性呼吸道传染病在医疗机构内传播的第一道屏障,在防止急性呼吸道传染病在社区进一步传播中发挥重要作用。筛查期间,发热门诊医生应对常见传染病开展筛查,同时应当具备一定的抢救能力,对需要抢救的患者及时开展抢救,确保筛查患者的医疗安全。为进一步提升发热门诊医生对急性呼吸道传染病早发现、早诊断、早隔离、早报告和早治疗能力,切实保障就诊患者的医疗安全,国家感染性疾病医疗质量控制中心组织专家制定《发热门诊医生培训考核方案》,指导医疗机构规范开展相关工作。

  • 10.
    Expert consensus on quality improvement of infectious diarrhea diagnosis and treatment
    National Medical Quality Control Center for Infectious Diseases
    Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) 2023, 17 (06): 379-384. DOI: 10.3877/cma.j.issn.1674-1358.2023.06.004
    Abstract (38) HTML (0) PDF (850 KB) (2)

    由病原微生物感染导致的感染性腹泻在诊疗中存在病原学诊断阳性率低、口服补液盐使用率低,抗菌药物使用率高等问题。为提高感染性腹泻诊治质量,国家卫生健康委在2023年11月13日发布了《感染性疾病专业医疗质量控制指标(2023年版)》,包括感染性腹泻患者病原学诊断阳性率、抗菌药物使用率和口服补液盐使用率。为指导各级各类医疗机构应用上述质控指标,国家感染性疾病医疗质量控制中心组织专家制订本共识,对感染性腹泻诊治关键质控环节、质控指标意义、质控指标信息化采集、医院和科室感染性腹泻诊治质量持续改进提出了建议。

  • 11.
    Expert consensus on quality improvement of hepatitis C diagnosis and treatment
    National Medical Quality Control Center for Infectious Diseases
    Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) 2023, 17 (06): 385-389. DOI: 10.3877/cma.j.issn.1674-1358.2023.06.005
    Abstract (35) HTML (0) PDF (454 KB) (5)

    丙型病毒性肝炎诊疗中存在HCV感染高危人群筛查率低、诊断率及治疗率低、疾病认知度低和治疗随访不规范等问题。为提高丙型病毒性肝炎诊治质量,国家卫生健康委在2023年11月13日发布了《感染性疾病专业医疗质量控制指标(2023年版)》,包括抗-HCV阳性患者丙型肝炎病毒核酸(HCV RNA)检测率、HCV RNA阳性患者抗病毒治疗率。为指导各级各类医疗机构应用上述质控指标,国家感染性疾病专业医疗质量控制中心组织专家制订本共识,对丙型病毒性肝炎诊治关键质控环节、质控指标意义、质控指标信息化采集、医院和科室丙型病毒性肝炎诊治质量持续改进提出了建议。

  • 12.
    Clinical analysis of exudative pleural effusion caused by paragonimus infection in 6 patients
    Hansheng Wang, Xiao Chen, Hui You, Liu Yan, Tao Ren, Meifang Wang
    Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) 2023, 17 (05): 348-353. DOI: 10.3877/cma.j.issn.1674-1358.2023.05.009
    Abstract (34) HTML (2) PDF (2229 KB) (8)
    Objective

    To explore the clinical diagnosis experience of pleural effusion caused by paragonimus infection, so as to avoid misdiagnosis or delayed diagnosis.

    Methods

    The clinical data and treatment of 6 patients with exudative pleural effusion caused by paragonimus infection in the Department of Respiratory and Critical Care Medicine of Taihe Hospital of Shiyan City from May 2018 to December 2022 were analyzed, retrospectively. Data included the demographic characteristics, clinical symptoms, exposure history, laboratory results, pleural fluid cytology, pleural biopsy histopathology, intradermal test for paragonimus-specific antigen, outcome of antiparasitic treatment and follow-up results of 6 patients were collected, respectively.

    Results

    Three male and three female patients were enrolled, with a mean age of (46.5 ± 5.1) years old. The absolute count and percentage of eosinophils in peripheral blood elevated to varying degrees (12.6%-54.0%). Cytological examination of pleural fluid of four patients showed a small to large number of eosinophils. Four patients underwent thoracoscopic pleural biopsy, of which 3 patients showed extensive eosinophilic infiltration in the interstitium, 1 patient showed parasite eggs and 1 patient showed nonspecific inflammation. There were 4 cases among the 6 patients had a history of intaking fresh water crabs or stream water. Meanwhile, 6 patients were positive in intradermal test of paragonimus-specific antigen (IDTPA) and serum enzyme-linked immunosorbent assay (ELISA) for paragonimus antibody. Paragonimus infection in extrapulmonary organs was excluded and pleural effusion caused by paragonimus was confirmed. All the 6 patients received oral praziquantel treatment (25 mg/kg, 3 times a day, continuous 3 days as a course of treatment, intermittent 7 days and then the second course). Chest computed tomography (CT) showed reduced or disappeared pleural effusion after treatment.

    Conclusions

    In the diagnosis of unexplained pleural effusion, paragonimus infection should be highly suspected in patients with elevated eosinophils in peripheral blood, pleural fluid, or pleural tissue, and with a history of raw freshwater crab or stream water intaking, especially in patients from areas which paragonimus infection is endemic.

  • 13.
    Recent progress on novel immunotherapy in the treatment of chronic hepatitis B
    Guanmei Chen, Xuan Zuo, Baolin Liao
    Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) 2024, 18 (01): 7-10. DOI: 10.3877/cma.j.issn.1674-1358.2024.01.002
    Abstract (33) HTML (0) PDF (716 KB) (1)

    Chronic hepatitis B (CHB) is still a public healthy problem all over the world, its consistent development can cause liver cirrhosis, hepatocellular carcinoma (HCC) and even death. At present, antiviral drugs can repress the replication of hepatitis B virus (HBV) DNA, reduce liver inflammation, reverse liver fibrosis and decreased the risk of cirrhosis and HCC. But it is still difficult to completely cure CHB, and the recurrence of virus is common after termination of treatment. Immunotherapy can break the immune tolerance and restore their immune response to HBV in CHB patients, and effective strategies of immunotherapy combined with direct antiviral drugs are expected to achieve the cure of CHB.

  • 14.
    Genotype identification and drug resistance analysis of respiratory tract drug-resistant Haemophilus influenzae in children for the choice of antibiotic treatment
    Wei Li, Junqiao Mo
    Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) 2023, 17 (05): 315-323. DOI: 10.3877/cma.j.issn.1674-1358.2023.05.005
    Abstract (32) HTML (0) PDF (774 KB) (5)
    Objective

    To investigate the significance of genotype identification and drug resistance analysis of children’s respiratory drug-resistant Haemophilus influenzae (HI) for antibiotic treatment.

    Methods

    Total of 92 children with respiratory HI infection admitted to the Fifth People’s Hospital of Hainan Province from March 2018 to March 2022 were selected. Serotype, biotype, genotyping (TEM-1 and ROB-1), antibiotic sensitivity and β-lactamase expression were collected. The influence factors of positive HI β-lactamase in children’s respiratory tract were analyzed by Logistic regression analysis; A line map model of children’s respiratory tract with HI β-lactamase positive was constructed. The model was evaluated by receiver operating characteristic (ROC) curve, calibration curve and clinical decision curve, respectively.

    Results

    The 92 strains of HI were classified into 8 biotypes, which were Ⅰ, Ⅱ, Ⅲ, Ⅳ, Ⅴ, Ⅵ, Ⅶ and Ⅷ. Among these, types Ⅱ [35.87% (33/92)] and Ⅲ [28.26% (26/92)] were the most prevalent. The serological typing revealed that HIa accounted for the highest proportion [28.26% (26/92)]. The detection rates of TEM-1 and ROB-1 genes were 57.61% (53/92) and 21.74% (20/92), respectively. Sensitivity testing on the 8 biotypes of HI showed that types Ⅴ, Ⅵ, Ⅶ and Ⅷ exhibited no antibiotic resistance. Type Ⅳ HI demonstrated a relatively high resistance rate to ampicillin [57.14% (4/7)], while type Ⅱ HI exhibited a higher resistance rate to cefuroxime [39.39% (13/33)]. Among the 92 strains, 37 (40.22%) were β-lactamase positive and 55 (59.78%) were negative. β-lactamase positive strains showed significantly higher resistance rates to cefpodoxime and ampicillin [33 (89.19%) and 37 (100.00%), respectively] compared to β-lactamase negative strains [4 (6.35%) and 7 (11.11%), respectively], with statistically significant differences (χ2 = 68.628, 74.747, both P < 0.001). Multifactor Logistics regression analysis revealed that using antibiotics continuously for ≥ 5 days (OR = 163.464, 95%CI: 8.420-3 173.439, P < 0.001), having ≥ 2 courses of continuous medication (OR = 19.890, 95%CI: 2.300-171.977, P = 0.007), combining ≥ 2 types of drugs (OR = 32.468, 95%CI: 2.792-377.616, P = 0.005) and frequently changing medication ≥ 2 times (OR = 30.769, 95%CI: 3.358-281.921, P = 0.002) were independent risk factors for β-lactamase-positive HI in children’s respiratory tracts. Constructing a column chart model based on these risk factors exhibited high discrimination, accuracy and effectiveness in predicting β-lactamase-positive HI in children’s respiratory tracts without altering the structure.

    Conclusions

    Clinically, the separation and identification of respiratory HI and the monitoring of drug resistance should be strengthened; the resistance mechanism of HI should be analyzed correctly, the antimicrobial drugs should be rationally used.

  • 15.
    Effect of drug-resistant mutations in reverse transcriptase region of hepatitis B virus on the level of serum hepatitis B surface antigen
    Xiaoman Zhang, Xiaoqiu Ma, Zhengju Xu, Chunyu Zhang, Caiting He
    Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) 2023, 17 (05): 324-332. DOI: 10.3877/cma.j.issn.1674-1358.2023.05.006
    Abstract (30) HTML (0) PDF (1160 KB) (5)
    Objective

    To investigate the effect of drug-resistant mutations in the reverse transcriptase region (RT) of hepatitis B virus (HBV) on serum hepatitis B surface antigen (HBsAg) level.

    Methods

    HBV DNA RT region was sequenced from 402 patients with chronic hepatitis B (CHB) who received nucleos(t)ide analogues drug treatment in Infectious Diseases Department of the 910th Joint Logistic Support Unit of the People’s Liberation Army of China from January 2016 to December 2021 by direct sequencing. According to the resistance mutation in RT region, the patients were divided into HBV RT wild group (181 cases) and HBV RT resistant mutation group (221 cases, including 33 cases with A181 mutation, 15 cases with V191 mutation, 82 cases with L180 + M204V mutation and 91 cases with M204I mutation). The influence factors of serum HBsAg level and the impact of HBV RT region resistance mutations on serum HBsAg level were analyzed by non parametric rank sum test (Mann Whitney U). The correlation between serum HBsAg level and HBV DNA in HBV RT resistant mutation group was explored by Spearman correlation analysis.

    Results

    The levels of serum HBsAg, ALT, AST and HBV genotype B infected patients in HBV RT wild group were significantly higher than those in HBV RT resistant mutation group (Z = -3.426, P = 0.001; Z =-2.347, P = 0.019; Z =-2.532, P = 0.011; Z =-10.387, P = 0.001). Among patients with HBV RT resistant mutation, serum HBsAg level in A181 mutation group, V191 mutation group, L180 + M204V mutation group, and M204I mutation group were significantly lower than those in HBV RT wild group (Z = 2.475, P = 0.013; Z = 2.148, P = 0.032; Z = 2.115, P = 0.034; Z = 2.449, P = 0.014). There was no significant difference in HBV DNA level among the mutation groups (all P > 0.05). Serum HBsAg level were significantly positively correlated with HBV DNA load in A181 mutation group, L180M + M204V mutation group and M204I mutation group (r = 0.486, P = 0.004; r = 0.578, P < 0.001; r = 0.369, P < 0.001).

    Conclusion

    HBV RT region drug resistance mutation in site of A181, V191, L180 and M204V had negative effect on serum HBsAg level of patients with CHB.

  • 16.
    Risk factors of patients with bloodstream infection in cardiac surgery
    Yuanxing Wu, Jianwei Ren, Guangfa Zhu
    Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) 2023, 17 (04): 230-237. DOI: 10.3877/cma.j.issn.1674-1358.2023.04.003
    Abstract (29) HTML (0) PDF (731 KB) (3)
    Objective

    To investigate the risk factors of the occurrence of bloodstream infection, and to analyze the difference of clinical characteristics between multi-bacterial bloodstream infection and single negative bacteria, to provide evidence for the prevention and treatment of bloodstream infection in cardiac surgery.

    Methods

    Medical records of patients with bloodstream infection in Department of Cardiac surgery, Beijing Anzhen Hospital, Capital Medical University from January 2018 to October 2021 were selected to summarize the detection and distribution of pathogens. Non-infection patients were selected with 1︰1 according to the age and gender of patients in infection group during the same period. The clinical data of the bloodstream infection group (including the multi-bacterial infection and single infection of Gram-negative bacteria and Gram-positive bacteria) and the non-infection group were analyzed, respectively. The measurement data were analyzed by t test or non-parametric test, and the counting data was analyzed by χ2 test. The indicators that may affect bloodstream infection were analyzed by multivariate Logistic regression, the risk factors of bloodstream infection and mixed bloodstream infection were analyzed.

    Results

    During the same period, a total of 55 908 cardiac surgery patients were admitted, and 181 cases with bloodstream infection, with an infection rate of 0.3% (181/55 908). The results showed that CPB time (Z = 5.031, P = 0.001) and operation time (Z = 3.830, P = 0.001), usage of ECMO (χ2 = 11.569, P = 0.001), IABP (χ2 = 30.685, P = 0.001) and CRRT (χ2 = 24.761, P = 0.001), exposure to carbapenems (χ2 = 11.661, P = 0.001), quinolones (χ2 = 4.096, P = 0.043), vancomycin (χ2 = 4.096, P = 0.043) and combined antibiotics (χ2 = 13.286, P = 0.001) before infection were statistically different between infection group and non-infection group. Multivariate Logistic regression analysis showed that CPB time (OR = 5.031, 95%CI: 1.843-6.798, P < 0.001) and operation time (OR = 1.228, 95%CI: 1.056-1.427, P = 0.008), usage of ECMO (OR = 4.180, 95%CI: 1.863-9.377, P = 0.001), IABP (OR = 4.017, 95%CI: 1.572-10.267, P = 0.004), CRRT (OR = 8.586, 95%CI: 2.494-29.560, P = 0.001), exposure to carbapenems (OR = 15.742, 95%CI: 5.699-43.478, P < 0.001), quinolones (OR = 2.272, 95%CI: 1.057-4.886, P = 0.030) and vancomycin (OR = 4.297, 95%CI: 1.199-15.400, P = 0.025) and combined use of antibiotics (OR = 4.520, 95%CI: 2.154-9.484, P = 0.001) before infection were all risk factors of postoperative bloodstream infection, with statistically significant differences. The total hospital duration of patients in infection group was significantly longer than that of non-infection group, with significant difference (Z = 8.033, P = 0.001). There were 52 deaths (28.7%) in infection group and 17 deaths (9.3%) in non-infecteion group, the mortality rate of the two groups was significantly different (χ2 = 21.935, P = 0.001). Among bloodstream infection group, 37 patients (20.4%) were infected with single Gram-negative bacilli, 28 patients (15.5%) were infected with single Gram-positive cocci, 116 patients (64.1%) were infected with Gram-negative bacilli and Gram-positive cocci. Total of 234 Gram-negative bacillus strains were detected, Acinetobacter baumannii (64 strains, 27.3%) and Klebsiella pneumoniae (56 strains, 23.9%) were the most common pathogens. Total of 145 strains of Gram-positive cocci were detected, among which Staphylococcus epidermidis (69 strains, 47.6%) was the most common. The results showed that CPB time (t =-4.010, P = 0.001) and operation time (t =-8.532, P = 0.001), exposure to 3 kinds of invasive endovascular devices (χ2 = 11.723, P = 0.001) and more than 3 kinds of invasive endovascular devices (χ2 = 4.618, P = 0.032), exposure to carbapenems (χ2 = 11.661, P = 0.001), vancomycin (χ2 = 4.096, P = 0.043), linezolid (χ2 = 15.174, P = 0.001), polycolistin (χ2 = 6.353, P = 0.012) and combined antibiotics (χ2 = 13.286, P = 0.001) before infection were significantly different between multi-bacterial bloodstream infection and single negative bacteria group. Multivariate Logistic regression analysis showed that CPB time (OR = 4.851, 95%CI: 1.190-1.313, P = 0.015) and operation time (OR = 14.764, 95%CI: 1.363-17.264, P = 0.014), exposure to 3 (OR = 1.257, 95%CI: 1.046-1.510, P = 0.015) or more than 3 (OR = 1.006, 95%CI: 1.001-1.012, P = 0.032) invasive endovascular devices, usage of carbapenems (OR = 4.765, 95%CI: 1.770-12.828, P = 0.002), vancomycin (OR = 7.750, 95%CI: 1.277-4.203, P = 0.026), linezolid (OR = 3.925, 95%CI: 1.665-9.254, P = 0.002), polycolistin (OR = 1.987, 95%CI: 1.985-3.451, P = 0.020) and combined use of antibiotics (OR = 1.466, 95%CI: 1.012-1.976, P = 0.012) before infection were the risk factors of postoperative multi-bacterial bloodstream infection, and the differences were statistically significant. The length of hospital duration was significantly prolonged after multi-bacterial bloodstream infection, with significant difference (Z =-1.576, P = 0.001).

    Conclusions

    Bloodstream infection and mixed bloodstream infection of patients with cardiac surgery are mostly associated with invasive intravascular device implantation and antibiotic exposure, and can lead to prolonged hospitalization and increased mortality, which seriously affect the prognosis of patients. Therefore, it is necessary to pay attention to the surgical operation and the rational use of antibiotics to reduce the occurrence of blood flow infection in cardiac surgery.

  • 17.
    EB virus infection and liver injury
    Jinghang Xu
    Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) 2023, 17 (06): 431-432. DOI: 10.3877/cma.j.issn.1674-1358.2023.06.012
    Abstract (29) HTML (0) PDF (842 KB) (1)

    本视频重点介绍Epstein-Barr病毒(EBV)感染与肝损伤的密切关系,其临床特征多样,常表现为急性自限性肝炎,随年龄增长患者病情相对加重。EBV感染还可致淤胆型肝炎,伴不同程度黄疸。少数EBV感染严重者可出现肝衰竭,若不能及时治疗,病死率较高。此外,EBV感染与慢性肝炎、肝硬化、自身免疫性肝病等均有一定关联。

    EBV属人类疱疹病毒4型,嗜淋巴细胞病毒属成员,为双链DNA病毒,于1964年由Epstein和Barr在Burkitt淋巴瘤细胞中发现,1968年确定为传染性单核细胞增多症(infectious mononucleosis,IM)的病原体。EBV相关疾病有鼻咽癌、淋巴瘤、Burkitt淋巴瘤、IM、噬血细胞综合征、慢性活动性EBV感染。EBV并非嗜肝病毒,故其感染导致的肝损伤并不常见。有研究显示英国某地区1998至2011年1 995例黄疸和(或)肝炎患者,仅17例(0.85%)为EBV所致肝炎,但仍多于同期的甲型肝炎(11例)和急性乙型肝炎(16例)患者,故不能忽视。EBV感染与肝损伤密切相关,形式多样,以急性自限性肝炎最为常见,也可表现为淤胆型肝炎和肝衰竭,另外,慢性肝炎、肝硬化、自身免疫性肝病可能均与EBV有关。

    一、EBV感染所致急性自限性肝炎

    EBV感染所致急性自限性肝炎中最为常见的为EBV感染所致IM,该类患者肝损伤常见,多临床症状轻微,预后好;转氨酶轻中度升高为主,也可伴胆管酶升高;病程第2~3周出现,持续不超过3个月;少部分患者发生肝衰竭而死亡或行肝移植。

    EBV感染所致IM病情的影响因素如下:

    1.年龄:患者年龄越大,转氨酶升高率和黄疸发生率越高。研究显示,中老年EBV感染所致IM肝损伤更重,淋巴结肿大和典型IM三联征(发热+咽峡炎+颈淋巴结肿大)发生率却较低,但难以早期考虑EBV感染而确诊。尽管IM患者中> 40岁人群的构成比并不高,但在人口老龄化背景下这部分人群肝损伤不容忽视。

    以往研究中,EBV感染所致肝炎被认为是IM的并发症,仅少见EBV感染所致肝炎而无IM典型三联征患者;后续有研究显示,中老年人中不少患者无典型IM表现而以EBV肝炎为主。故推测IM三联征或EBV肝炎可能是不同人群感染EBV后的不同临床表现。

    2.EBV DNA:EBV DNA是否对肝损伤有影响现有研究尚存在争议。

    3.免疫指标:有研究显示CD8+ T细胞高为危险因素(OR = 1.37),CD4+ T细胞高为保护因素(OR = 0.66),CD4/CD8+ T比例高为保护因素(OR = 0.15),有研究显示肝功异常患者较肝功正常者CD4+ T细胞较低,CD8+ T细胞较高,CD4/CD8+ T比例较低。

    4.临床类型:IM、嗜血细胞综合征以及恶性肿瘤疾病等。

    二、EBV感染所致淤胆型肝炎

    20多年以来,陆续有研究报道EBV导致淤胆型肝炎,1998年美国《内科学年鉴》报道2例(22岁女性,37岁女性);1998年《胃肠病学和肝病学杂志》报道1例60岁男性;2003年报道1例29岁女性;2005年报道24例(中位年龄20岁):患者碱性磷酸酶(alkaline phosphatase,ALP)中位数为749 IU/L(最高3 105 IU/L),胆红素中位数为12.6 mg/dl(最高47.5 mg/dl),丙氨酸氨基转移酶(alanine aminotransferase,ALT)或天门冬氨酸氨基转移酶(aspartate aminotransferase,AST)中位数为179 IU/L(最高2 518 IU/L),咽炎或扁桃体炎发生率仅30%,多数预后良好,1例死亡;2007年报道2例(分别为73岁男性和59岁男性)。

    三、EBV感染所致急性肝衰竭

    1950年美国报道1例24岁男性IM反复发作导致肝硬化,临床表现为反复发热。伴有消化道症状、黄疸、嗜异凝集试验阳性,多次住院治疗;病程3年时行肝组织活检提示肝硬化,但该病例无法排除乙型肝炎或丙型肝炎,未测定病毒壳抗原IgM、EBV早期抗原-D-IgA抗体、EBV核心抗原抗体或EBV DNA;无肝组织EBV免疫组织化学结果。

    四、EBV感染所致肝硬化

    一项回顾性研究显示,97例肝硬化患者(乙型肝炎、丙型肝炎和酒精性肝炎等)检测EBV DNA,其中36例阳性,61例阴性;EBV感染者年龄更大,白蛋白水平更低,CTP评分更高,提示EBV感染可能会影响肝硬化预后。

    五、EBV与自身免疫性肝炎

    有研究显示,EBV与自身免疫性肝炎可能存在相关性。

    综上,EBV感染造成的肝损伤多数为急性、自限性的,可伴胆汁淤积和肝衰竭。

  • 18.
    Distribution and drug resistance of pathogenic bacteria in neonates from 2020 to 2022 in Xi’an Children’s Hospital
    Haijin Zhang, Zengguo Wang, Huijun Cai, Bingtong Zhao
    Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) 2023, 17 (04): 222-229. DOI: 10.3877/cma.j.issn.1674-1358.2023.04.002
    Abstract (28) HTML (0) PDF (735 KB) (3)
    Objective

    To investigate the characteristics of distribution and drug resistance of bacterial infection in neonates from 2020 to 2022 in Xi’an Children’s Hospital.

    Methods

    The specimens were collected from hospitalized neonates from January 2020 to December 2022 in Xi’an Children’s Hospital, and the distribution, composition and drug resistance of the specimens were analyzed, which were compared with the national children surveillance data by Pearson Chi-square test.

    Results

    Total of 496 strains of bacteria were isolated from 9 346 specimens; including 251 (50.60%) strains of Gram-negative bacteria and 231 (46.57%) strains of Gram-positive bacteria; 14 (2.83%) strains of fungi. The top-five bacteria were Escherichia coli (Eco) (90 strains, 18.15%), Coagulase negative Staphylococci (CNS) (71 strains, 14.31%), Klebsiella peneumoniae (Kpn) (69 strains, 13.91%), Staphylococcus aureus (Sau) (57 strains, 11.49%) and Enterococcus faecium (Efa) (41 strains, 8.27%). Total of 184 strains of multi-drug resistant bacteria were detected from 496 pathogenic bacteria (37.09%); 105 (57.07%) strains of Gram-negative bacteria and 79 (42.93%) strains of Gram-positive bacteria were detected among multiple drug resistant bacteria. The detection rates of Kpn, CNS, Sau, Eco, AB and Pa were 58 strains (84.06%), 56 strains (78.87%), 23 strains (40.35%), 36 strains (40.00%), 4 strains (36.36%) and 7 strains (33.33%). The strains were highly resistant to many kinds of antibiotics, some drug resistance rates were significantly different from the national surveillance levels. The resistance rate of CNS (97.2%) to penicillin were significantly higher than those of Sau (94.7%). The resistance rate of Sau and CNS against clindamycin were 68.4% and 59.2%, which were significantly higher than those of the national surveillance levels (36.7% and 42.3%) (χ2 = 24.431, P < 0.001; χ2 = 8.119, P = 0.004). The resistance rates of Eco to cephalosporins were different as the follows: 75.5% to cefazolin, 67.8% to cefuroxime, 65.5% to cefatriaxone, which were significantly higher than those of the national surveillance levels (58.8%, 47.5% and 46.6%) (χ2 = 10.329, P = 0.001; χ2 = 14.674, P < 0.001; χ2 = 12.841, P < 0.001). The resistance rates of Kpn to cephalosporins were as the follows: 76.81% to cefatriaxone, 68.1% to Cefazolin, 62.8% to ceftazidime, 62.3% to cefuroxime, which were significantly higher than those of the national surveillance levels (44.1%, 53.2%, 30.6% and 49.0%), with significant differences (χ2 = 29.240, P < 0.001; χ2 = 6.056, P = 0.014, χ2 = 34.583, P < 0.001; χ2 = 4.789, P = 0.029). The resistance rates to meropenem and imipenem were 39.1% and 40.6%, respectively, significantly higher than 14.8% and 11.7% of the national monitoring data, with significant differences (χ2 = 30.816, P < 0.001; χ2 = 52.243, P < 0.001).

    Conclusions

    The majority of hospitalized neonatal pathogens from 2020 to 2022 in our hospital were CNS, Eco and Kpn. The drug resistance rates of Sau and CNS to clindamycin; Eco to cefazolin, cefuroxime, and ceftriaxone, and Kpn to cephalosporins and carbapenems were significantly higher than the national surveillance data. Antibiotics should be used rationally according to the distribution of main pathogenic bacteria locally and the results of drug sensitivity.

  • 19.
    Progress on monocyte chemoattractant protein-1 in infectious diseases
    Kaiyue Yan, Huiling Deng, Yufeng Zhang, Miao Xi, Yuxin Li
    Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) 2023, 17 (04): 217-221. DOI: 10.3877/cma.j.issn.1674-1358.2023.04.001
    Abstract (28) HTML (1) PDF (711 KB) (5)

    Monocyte chemotactic protein-1 (MCP-1) is a chemokine in vivo, which is mainly produced by lymphocytes, monocyte macrophages and other cells in human body. It induces immune cells to participate in inflammatory response by acting on its related receptors. MCP-1 has a variety of biological functions. Early domestic and foreign studies have found that MCP-1 is associated with a variety of common clinical diseases, such as pneumonia, encephalitis, urinary tract infection, systemic lupus erythematosus, various cancers, etc. Recent studies have shown that MCP-1 is involved in the occurrence and development of a variety of infectious diseases. It has played important roles to the diagnosis, evaluation and prognosis of clinical diseases. This paper will briefly introduce the research progress of MCP-1 and multi-system infectious diseases. In particular, MCP-1 and infectious diseases in children will be described in detail, and the association between MCP-1 and common infectious diseases in children will be expounded. It provides new help and insight for the application of MCP-1 in the diagnosis and treatment of infectious diseases.

  • 20.
    Risk factors of liver injury in patients with hepatitis B virus infection and pulmonary tuberculosis and predictive model construction
    Yingying Wang, Ping Xie
    Chinese Journal of Experimental and Clinical Infectious Diseases(Electronic Edition) 2023, 17 (04): 267-273. DOI: 10.3877/cma.j.issn.1674-1358.2023.04.008
    Abstract (27) HTML (1) PDF (929 KB) (3)
    Objective

    To investigate the risk factors of liver damage in patients with hepatitis B virus (HBV) infection complicated with pulmonary tuberculosis, and to construct a nomogram prediction model.

    Methods

    Total of 192 patients with HBV infection combined with tuberculosis were selected from Songjiang District Central Hospital of Shanghai from January 2018 to December 2021 were collected. According to whether had liver injury or not, patients were grouped into control group (104 cases) and liver injury group (88 cases). Logistic regression analysis was used to screen the risk factors of liver damage in patients with hepatitis B virus infection complicated with pulmonary tuberculosis; The nomogram model for predicting liver damage in patients with HBV infection and pulmonary tuberculosis was constructed by R software, and the receiver operator characteristic curves (ROC) curve and calibration curve were used to verify the nomogram model.

    Results

    The comparison between patients of the two group in terms of education level (χ2 = 5.224, P = 0.022), albumin (χ2 = 15.147, P < 0.001), preventive antiviral therapy (χ2 = 10.831, P = 0.001), use of hepatoprotective drugs (χ2 = 6.159, P = 0.013), treatment type (χ2 = 13.135, P < 0.001) and history of liver disease (χ2 = 5.493, P = 0.019) were all significantly different. Logistic regression analysis showed that albumin < 35 g/L (OR = 4.062, 95%CI: 1.993-8.280, P < 0.001), no preventive antiviral therapy (OR = 2.586, 95%CI: 1.295-5.165, P = 0.007), no hepatoprotective drugs (OR = 2.327, 95%CI: 1.190-4.551, P = 0.014), treatment type of "retreatment" (OR = 2.701, 95%CI: 1.299-5.615, P = 0.008) and history of liver disease (OR = 3.024, 95%CI: 1.149-7.955, P = 0.025) were all independent risk factors for liver injury in patients with HBV infection complicated with pulmonary tuberculosis. The area under the ROC curve of nomogram model predicts HBV infection with tuberculosis was 0.766 (95%CI: 0.701-0.832). The slope of the constructed nomogram prediction model calibration curve is close to 1, and the H-L goodness-of-fit test showed good fitting degree (χ2 = 6.272, P = 0.617).

    Conclusions

    The nomogram prediction model constructed based on five risk factors including albumin < 35 g/L, no preventive antiviral treatment, no use of hepatoprotective drugs, treatment type of "retreatment", and history of liver disease can effectively predict liver damage in patients with HBV infection complicated with pulmonary tuberculosis.

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