ObjectiveTo explore the diagnostic value of endobronchial ultrasonography with a guide sheath (EBUS-GS) for pulmonary fungal disease.MethodsAll patients were collected from January 2015 to December 2018. They were diagnosed with pulmonary fungal disease by tissue biopsy, body fluid or blood test, and without other diseases such as pneumonia, lung cancer, lung abscess, tuberculosis, or organizing pneumonia, etc. After clinical anti-fungal treatment, clinical symptoms were relieved, chest CT lesions were absorbed, laboratory-related checks were turned negative in these patients. All patients underwent bronchoscopy, bronchoalveolar lavage fluid/brush examination, and blood galactomannan antigen test/latex agglutination test. They were divided into an EBUS-GS group and a non-EBUS-GS group according to whether EBUS-GS check was performed. Non-parametric test was used to analyze the diagnostic value of EBUS-GS in pulmonary fungal diseases.ResultsFifty-one patients were included and 20 patients in the EBUS-GS group and 31 patients in the non-EBUS-GS group. The EBUS-GS group had a higher positive rate of pulmonary fungal disease. The diagnostic rates of the EBUS-GS group and the non-EBUS-GS group were statistically different (90.0% vs. 48.4%, P<0.05).ConclusionEBUS-GS can improve the diagnosis rate of pulmonary fungal disease and provides further evidence for a clear diagnosis.
ObjectiveTo evaluate the diagnostic value of monitoring 1,3-beta-D-glucan (G test) in patients with autoimmune disease complicated with invasive fungal disease (IFD). MethodsA retrospective study was performed in hospitalized patients in the First Affiliated Hospital of Zhengzhou Universisty who were diagnosed as autoimmune disease with lung infection during the immunosuppressive therapy between January 2014 and January 2016. A total of 372 patients were enrolled in this study. All subjects were classified according to the 2006 diagnostic criteria and treatment of invasive pulmonaary fungal infection, with serum 1,3-β-D-glucan results not included in the diagnosis. There were 18 cases with proven IFD, 35 cases with probable IFD, and 70 ceses with possible IFD. Fifty-three patients with proven IFD or probable IFD were as a case group, and another 249 patients with no evidence for IFD were as a control group. The value of the G test for diagnosis of automimmune disease with IFD was analyzed by ROC curve. ResultsThe serum 1,3-β-D-glucan level was significantly higher in the case group when compared with the control group [median (interquartile range): 135.0 (63.1 to 319.0) pg/ml vs. 75.9 (41.2 to 88.1) pg/ml, P<0.05]. When the cut-off value of serum 1,3-β-D-glucan level was set at 93.8 pg/ml, the sensitivity, specificity, positive predictive value, and negative predictive value for diagnosis of autoimmune disease with IFD were 0.65 (95% CI 0.56 to 0.73), 0.87 (95% CI 0.83 to 0.92), 0.70 (95% CI 0.64 to 0.81), and 0.83 (95% CI 0.79 to 0.88), respectively. ConclusionThe 1,3-beta-D-glucan test is a valuable method for diagnosis of IFD in patients with autoimmune disease.
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.
【摘要】 目的 對季也蒙念珠菌感染患者的臨床及微生物學特征進行分析，為臨床診治提供參考。 方法 收集2006年1月-2008年12月病原菌培養為季也蒙念珠菌的10例住院患者資料進行回顧性分析。 結果 季也蒙念珠菌感染患者存在多種基礎疾病，大多數患者（8/10）有易感因素，其中7例使用廣譜抗菌藥物。10例中有8例為深部真菌感染。其臨床表現與感染部位有關，主要累及泌尿道、呼吸道和皮膚軟組織。多數深部感染患者（6/8）在感染前存在同部位細菌感染，部分患者（3/8）在相同部位還可分離出其他真菌。全部季也蒙念珠菌菌株對兩性霉素B敏感，大多數菌株（9/10）對氟康唑敏感。僅1例患者因肺部感染、呼吸衰竭死亡，其余患者經氟康唑、伊曲康唑或特比萘芬等抗真菌藥物治愈。 結論 季也蒙念珠菌感染多發生于有基礎疾病、存在真菌易感因素者，感染部位多為原細菌感染部位，常合并其他細菌或真菌感染。部分菌株對氟康唑和伊曲康唑中敏或耐藥，治療應根據藥敏進行選擇。【Abstract】 Objective To analyze the clinical and microbiologic characters of candida guilliermondii to improve the clinical diagnosis and treatment. Methods The clinical data of 10 patients with candida guilliermondii infection diagnosed in our hospital from January 2006 to December 2008 were retrospectively analyzed. Results All the patients had several underlying conditions; eight patients had predisposing factors and seven patients were prescribed with broad-spectrum antibacterials. Eight patients had deep mycoses, whose clinical manifestation was associated with the infectious sites, mainly involved in urinary tract, respiratory tract and skin-soft tissues. Most deep mycoses (6/8) had prior bacterial infection at the candida guilliermondii infection site; some patients (3/8) had other fungous infection at the same time. All the strains were sensitive to amphotericin B; most fungous strains (9/10) were sensitive to fluconazole. One patient died of pulmonary infection and respiratory failure, and the others were cured by fluconazole, itraconazole or terbinafine. Conclusion Candida guilliermondii infection mainly occurs in patients with underlying conditions and predisposing factors. The infectious sites have prior bacterial infection and bacterial infection or fungous infection at the same time. Since some candida guilliermondii strains were not sensitive to fluconazole and itraconzole, drug sensitive test should be consulted.
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.