Candida auris is an emerging multidrug-resistant fungus that has become a significant global public health threat due to its strong resistance to antifungal agents and its ability to spread within healthcare facilities. This paper reviews the global epidemiological trends of Candida auris and the current status of existing prevention and control systems, focusing specifically on pathogen epidemiological characteristics, domestic and international epidemic situations, current prevention and control frameworks, and the construction of prevention networks. In response to the challenges posed by the international spread of Candida auris , China’s fungal disease prevention system should advance towards a more systematic and scientific direction. By integrating resources from medical institutions, disease control agencies, and research institutes, and combining multidisciplinary knowledge and technologies, China should establish a multi-level coordinated prevention and control mechanism to improve its monitoring, prevention, and treatment systems. In the future, China’s fungal disease prevention and control system needs to further strengthen talent cultivation, improve surveillance networks, promote technological innovation, and build a comprehensive, multi-level modern prevention and control system.
Objective To investigate the risk factors for end-stage liver disease (ESLD) complicated with fungal esophagitis (FE). Methods The clinical data of ESLD patients who underwent gastroscopy during their hospitalization in the Second Affiliated Hospital of Chongqing Medical University between January 1, 2017 and December 31, 2023 were retrospectively analyzed. The ESLD patients with FE were selected as the study group, and the ESLD patients without FE during the same period were included as the control group by 1∶2 propensity score matching method. Multivariate logistic regression model was used to analyze the risk factors of ESLD complicated with FE. Results A total of 75 ESLD patients with FE and 150 ESLD patients without FE were enrolled. There was no significant difference in age, gender, decompensated cirrhosis, liver cancer, diabetes mellitus, or etiology of ESLD between the two groups (P>0.05). Multivariate logistic regression analysis showed that longer hospital stay [odds ratio (OR)=1.115, 95% confidence interval (CI) (1.069, 1.164)], with invasive procedures [OR=10.820, 95%CI (4.393, 26.647)], and higher total bilirubin [OR=1.015, 95%CI (1.005, 1.024)] were risk factors for ESLD complicated with FE (P<0.05). In the study group, 41 patients were treated with antifungal drugs, and 4 of them developed invasive fungal infection. Among the 34 patients who did not receive antifungal drugs, 10 developed invasive fungal infection. Conclusions ESLD patients with longer hospital stay, worse liver function, and invasive procedures are more likely to develop FE, and regular gastroscopy should be performed. Once FE is found, active antifungal treatment should be taken to reduce the occurrence of invasive fungal infection and improve the prognosis of patients.
【摘要】 目的 探讨老年慢性阻塞性肺疾病(COPD)患者院内肺部真菌感染的可能易患因素、感染时间、临床特征、感染常见真菌与预后。 方法 回顾性分析36例65岁以上COPD 院内肺部真菌感染患者与同期40例65岁以上COPD院内肺部非真菌感染患者的临床资料。 结果 老年COPD患者院内肺部真菌感染的可能易患因素与长期使用广谱抗生素、糖皮质激素,低蛋白血症、粒细胞减少相关;吸烟时间较长及每年住院次数增多也是老年COPD患者发生院内肺部真菌感染的可能易感因素;约1/3患者肺部真菌发生在入院1~2周,临床特征无特异性;病原菌主要为白色念珠菌(8055%),胸部X线表现以支气管肺炎及团块影改变为主,预后较差。 结论 老年COPD患者若长期使用广谱抗生素和(或)糖皮质激素,有低蛋白血症或粒细胞减少,可能会并发院内肺部真菌感染,预后较差,长期吸烟及多次住院患者也应提高警惕,重视可能易患因素并尽早采取预防与治疗措施,减少死亡的发生。【Abstract】 Objective To investigate the possible risk factors of nosocomial pulmonary fungal infection, infection time, the clinical features, common infection fungal and prognosis of elderly patients with chronic obstructive pulmonary disease (COPD). Methods The clinical data of 36 patient of COPD complicated with nosocomial pulmonary fungal infection over 65 years old and 40 patients without nosocomial pulmonary fungal infection were retrospectively analyzed. Results Longterm use of broadspectrum antibiotics and (or) glucocorticoid, hypoalbuminemia, neutropenia, smoking for a long time, and hospitalizations were risk factors for nosocomial pulmonary fungal infection in elderly COPD patients. In about 1/3 of patients, nosocomial pulmonary fungal infection occurred within one to two weeks of hospitalization. The clinical features were nonspecific. Pathogens were mainly Candida albicans (8055%). Bronchial pneumonia and group block were the main findings in Chest Xray. The prognosis was poor. Conclusion Elderly patients with COPD are prone to nosocomial pulmonary fungal infection if they have hypoproteinemia, neutropenia or use longterm broadspectrum antibiotics and (or) glucocorticoids.
Objective To investigate whether de-escalation antibacterial therapy would be helpful to antifungal treatment in patients with invasive pulmonary fungal infection( IPFI) .Methods A prospective study was conducted in 174 IPFI patients( male 106, female 68) in the Second Hospital of Hebei Medical University from January 2008 to July 2010. The clinical data was collected including symptoms, physical signs,microbiological results, treatment and prognosis, etc. The therapeutic results were compared between the patients who received or did not receive de-escalation antibacterial therapy. Results The predominant pathogenic fungus was Candida albicans, which accounted for 59. 7% of IPFI. The effect of antifungal therapy showed statistically significant difference between the patients who received de-escalation antibacterial therapy and the patients who did not ( 60. 0% vs. 34. 5% , P =0. 001) . Conclusion The deescalation use of antibacterial therapy would be helpful to antifungal efficacy.
Fungal infection is an important clinical problem for patients with immune deficiency or immunosuppression. With deadly fungus infection case increasing, the development of antifungal vaccine attracts the attention of researchers. Dendritic cell (DC) is the unique antigen presenting cell (APC) to trigger the antifungal immune reaction, and recent studies indicate that the targeted vaccination strategy based on DC have prospective antifungal potentials. In this paper, we review the antifungal immunity mechanism and recent development of the targeted DC antifungal strategy.
Objective To investigate the risk factors for secondary pulmonary fungal infection in patients with acute exacerbation of chronic obstructive pulmonary disease (AECOPD). And a visual tool using nomogram was developed and validated to assist in the clinical prediction of the probability of pulmonary fungal infection occurrence in AECOPD patients. Methods A retrospective cohort study method was used to collect AECOPD patients hospitalized in the Department of Respiratory, The First Affiliated Hospital of Chengdu Medical College from January 2021 to December 2021 as a training set. And AECOPD patients between January 2020 and December 2020 were collected as a validation set. Independent risk factors were determined through univariate, Lasso regression analyses. and multivariable logistic, A nomogram prediction model was constructed with these independent risk factors, and the nomogram was evaluated by receiver operating characteristic area under the curve (AUC), calibration curve, and decision curve analysis (DCA). Results The use of glucocorticoid, combined use of antibiotics, duration of antibiotic use and hypoalbuminemia were independent risk factors for secondary pulmonary fungal infection in AECOPD patients (all P<0.05). The training set and validation set of the constructed prediction model had an AUC value of 0.915 [95%CI: 0.891 - 0.940] and 0.830 [95%CI: 0.790 - 0.871], respectively. The calibration curve showed that the predicted probability was in good agreement with the actual observed probability of pulmonary fungal infection in AECOPD patients. The corresponding decision curve analysis (DCA) indicated the nomogram had relatively ideal clinical utility. Conclusions The result showed that the use of glucocorticoid, combined use of antibiotics, prolonged antibiotic therapy and hypoalbuminemia was independent risk factors for pulmonary fungal infection in AECOPD patients. The clinical prediction model for secondary pulmonary fungal infection in AECOPD patients constructed in this study has strong predictive power and clinical practicability.
In recent years, due to the extensive usage of immunosuppressant and the rise of patients with cancers and organ transplantation, the incidence rate of invasive fungal infection, especially invasive pulmonary fungal infection, has increased. Besides the clinical manifestations, medical history and imaging, the diagnosis of pulmonary mycosis mainly depends on pathogen detection methods in clinical microbiology laboratory. However, due to the difficulty in fungi culturing and the low sensitivity of smear microscopy, better molecular biology methods are needed. To date, the emergence of metagenomic next-generation sequencing (mNGS) has improved the identification rate of pulmonary fungal infections. mNGS is significantly superior to traditional detection methods in rapid, accurate, and comprehensive determination of fungi from various clinical specimens, especially atypical fungi. However, some problems in mNGS method have to be addressed including sample collection, report interpretation, and its combination with traditional microbiology methods. With the in-depth discussion and solution of the above problems, mNGS will be indispensable to the etiological diagnosis of pulmonary invasive fungal infection.
Objective To summarize the clinical features, predisposing factors, diagnosis, therapeutic outcome, and prognosis of invasive pulmonary fungal infection( IPFI) . Methods 90 cases with pathologically proved IPFI, admitted in non-intensive care unit in Xiangya Hospital from January 2005 to February 2012, were retrospectively analyzed. Results The pathogenic examination revealed Aspergillosis in 56 cases( 62. 2% ) , Cryptococcus in 18 cases( 20. 0% ) , Mucormycosis in 6 cases( 6. 7% ) , and Histoplasma in 6 cases( 6. 7% ) , etc. The underlying diseases were reported in 87 cases, and mainly included COPD, pulmonary tuberculosis, and diabetes mellitus. Cough and expectoration were the common clinical symptoms. 49 patients ( 54. 4% ) received long-term and broad-spectrum antibiotic therapy. The CT results revealed masses type in 25 cases( 27. 8%) , nodule lesions type in 15 cases( 16. 7% ) , lung consolidation type in 22 cases( 24. 4% ) , cavity type in 22 cases( 24. 4% ) , aspergilloma type in 6 cases( 6. 7% ) . 47 patients were clinical diagnosed with IPFI before biopsy with preliminary diagnosis accordance rate of 52. 2% . 31 cases ( 34. 4% ) underwent surgical resection of pulmonary lesions, and no recurrence was detected over two-year follow up. 56 cases ( 62. 2% ) received systemic anti-fugal therapy, and 43 cases( 76. 8% ) were cured or significantly improved. 3 cases ( 3. 3% ) refused any therapy. Conclusions The most frequently isolated pathogen of IPFI is Aspergillosis. The mainly underlying diseases are COPD, pulmonary tuberculosis, and diabetes mellitus. Long-termand broad-spectrum antibiotic therapy may be the major risk factor. Pathological examination is needed for final diagnosis. Surgical procedure can achieve optimal prognosis.
Objective To explore the risk factors of invasive fungal infection ( IFI) in respiratory ward. Methods A multi-center, retrospective, case-control study was carried out. Patients from five general hospitals in Chongqing city, diagnosed as fungal infection, or whose respiratory specimens were fungal positive, were retrospectively screened for IFI. Patients with respiratory infection and colonization of nonfungal cases in the same period of hospitalization were enrolled as control. Results Thirty-four patients diagnosed with IFI and 50 patients diagnosed with bacterial infection were analyzed for the risk factors of IFI. The demographic characteristics of patients including age and gender were not different( P gt; 0. 05) , but hospitalization days, carbapenem antibiotic use, chemotherapy, deep venous catheterization, total parenteralnutrition( TPN) , neutropenia, and renal disfunction were different significantly between the IFI group and the control group. Multiple logistic regression analysis showed that carbapenem antibiotic use ( OR = 6. 753) ,central venous catheterization ( OR = 5. 021) and TPN ( OR = 3. 199) were main risk factors of invasive fungal infection. Conclusion The carbapenem antibiotic use, central venous catheterization and TPN are risk factors for IFI in respiratory ward.