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1，3-β-D葡聚糖檢測對尿路插管所致真菌感染的診斷價值

【摘要】 目的 探討尿路插管所致真菌感染患者的血漿和尿液中1，3-β-D葡聚糖檢測的臨床意義。 方法 將2009年1-5月47例尿路插管所致真菌感染患者設為試驗組，50例正常健康體檢者設為對照組，分別檢測其血漿和尿液中1，3-β-D葡聚糖的水平。 結果 試驗組與對照組比較，血漿及尿液中1，3-β-D葡聚糖含量差異有統計學意義（Plt;0.001）；試驗組的尿液和血漿中1，3-β-D葡聚糖含量比較，有統計學意義（Plt;0.05），尿液中的1，3-β-D葡聚糖含量高于血漿。 結論 血漿和尿液1，3-β-D葡聚糖水平檢測可作為診斷泌尿系統真菌感染的可靠指標，且尿液樣本的診斷價值高于血漿。

Clinical Analysis of Elderly Patients with Chronic Obstructive Pulmonary Disease with Nosocomial Pulmonary Fungal Infection

【摘要】 目的 探討老年慢性阻塞性肺疾病(COPD)患者院內肺部真菌感染的可能易患因素、感染時間、臨床特征、感染常見真菌與預后。 方法 回顧性分析36例65歲以上COPD 院內肺部真菌感染患者與同期40例65歲以上COPD院內肺部非真菌感染患者的臨床資料。 結果 老年COPD患者院內肺部真菌感染的可能易患因素與長期使用廣譜抗生素、糖皮質激素,低蛋白血癥、粒細胞減少相關;吸煙時間較長及每年住院次數增多也是老年COPD患者發生院內肺部真菌感染的可能易感因素;約1/3患者肺部真菌發生在入院1~2周,臨床特征無特異性;病原菌主要為白色念珠菌(8055%),胸部X線表現以支氣管肺炎及團塊影改變為主,預后較差。 結論 老年COPD患者若長期使用廣譜抗生素和(或)糖皮質激素,有低蛋白血癥或粒細胞減少,可能會并發院內肺部真菌感染,預后較差,長期吸煙及多次住院患者也應提高警惕,重視可能易患因素并盡早采取預防與治療措施,減少死亡的發生。【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 Longterm use of broadspectrum 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 nonspecific. Pathogens were mainly Candida albicans (8055%). Bronchial pneumonia and group block were the main findings in Chest Xray. The prognosis was poor. Conclusion Elderly patients with COPD are prone to nosocomial pulmonary fungal infection if they have hypoproteinemia, neutropenia or use longterm broadspectrum antibiotics and (or) glucocorticoids.

Influence of De-escalation Antibacterial Therapy on Invasive Pulmonary Fungal Infection

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.

The Interpretation of ATS Guideline of Treatment of Fungal Infections in Adult Pulmonary and Critical Care Patients in 2011

Clinical characteristics and pathogen distribution of patients with community-acquired pneumonia and type 2 diabetes mellitus

Objective To investigate the clinical characteristics and pathogen distribution of community-acquired pneumonia (CAP) combined with type 2 diabetes mellitus (T2DM), based on bronchoalveolar lavage fluid (BALF) metagenomic next-generation sequencing (mNGS) test. Methods In this cross-sectional study, CAP patients with BALF mNGS test were screened from April 2023 to April 2024. The patients were divided into a single CAP group (CAP group) and a CAP combine with T2DM group (CAP+T2DM group). The data of demographics, underlying diseases, complications, and laboratory tests including blood routine, inflammatory parameters, liver and renal functions, random blood glucose (RGB), hemoglobin A1C (HbA1c), and BALF mNGS tests were collected and compared between the two groups. Results Ultimately, 86 patients were included, with 45 in the CAP group and 41 in the CAP+T2DM group. Compared with the CAP group, the CAP+T2DM group had higher platelet count [(272.44±128.57)×109/L vs. (215.00±100.06)×109/L], erythrocyte sedimentation rate [(75.63±35.19) vs. (59.69±34.47) mm/h], RGB [10.8 (9.1, 13.5) vs. 6.5 (5.8, 7.8) mmol/L], HbA1c [8.2% (7.3%, 8.5%) vs. 5.7% (5.5%, 6.1%)], and fungi infection rate (65.9% vs. 40.0%), and the differences were statistically significant between the two groups (P<0.05). Conclusion CAP patients with T2DM have increased levels of platelet and erythrocyte sedimentation rate, and are at higher risk for fungi infection, which potentially leads to worse outcome.

A nomogram for predicting secondary pulmonary fungal infection in patients with acute exacerbations of chronic obstructive pulmonary disease

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.

Low Dose MSCT Diagnosis of Pulmonary Fungal Infection

Objective To explore the diagnosis value of the low dose multi-slice spiral computed tomography (MSCT) imaging in pulmonary fungal infection in order to improve its diagnosis level. Methods CT manifestations of 106 cases of pulmonary fungal infection confirmed by operation, pathology, mycetes cultivation and follow-ups of clinical therapy were retrospectively analyzed. All cases underwent low dose MSCT examinations including CARE dose 4D and sinogram affirmed iterative reconstruction technology, and 6 cases underwent contrast-enhanced CT scanning. Results Among the basic MSCT findings of pulmonary fungal infection, they showed patch-nodular type in 54 cases, solid variant in 38 cases, and tumor type in 14 cases. In all cases, 91 cases displayed as mulifocality, 83 cases as polymorphism and 78 cases as polytropy. Among the 106 cases with comparative distinctive MSCT manifestations, bud of branch sign were showed in 39 cases, halo sign in 32 cases, wedge shape consolidation in 19 cases, ice needle sign in 15 cases, crescentic sign in 11 cases, air ring sign in 6 cases, and contra-halo sign in 4 cases. The nodules in the cavities were not enhanced in enhanced scan in 5 cases. Conclusions There are some distinctive MSCT findings in patients with pulmonary fungal infection. Pulmonary fungal infection can be diagnosed with typical MSCT findings in close combination with the clinical information.

Evaluation on APACHEⅡ Score for Deep Fungal Infection in Patients with Severe Acute Pancreatitis at Admission

Objective　To evaluate the predicted value of APACHEⅡ score at admission for deep fungal infection（DFI） in patients with severe acute pancreatitis （SAP）.Methods　The clinical data of 132 patients with SAP from January 2006 to June 2011 in our hospital were analyzed retrospectively. The receiver operating characteristic curve （ROC） was used for evaluating the predicted value.Results　Thirty-nine patients with SAP infected DFI （29.5%）,of which 36 patients （92.3%） infected with Candida albicans,2 patients （5.1%） with Candida tropicalis,1 patient （2.6%） with pearl bacteria.And,among these 39 patients,27 patients （69.2%） infected at single site,12 patients （30.8%） infected at multi-site. The APACHEⅡ score in 39 patients with DFI was higher than that of 93 patients without DFI （17.1±3.8 versus 9.7±2.1, t=14.316,P=0.000）.The ROC for APACHEⅡ score predicting DFI was 0.745（P=0.000）, 95%CI was 0.641－0.849.When the cut off point was 15,it showed the best forecast performance,with specificity 0.81, sensitivity 0.72,Youden index 0.53. Conclusions　The APACHEⅡ score at admission can preferably predict DFI in patients with SAP； when the APACHEⅡ score is greater than 15,it prompts highly possible of DFI,so preventive anti-fungal treatment may be necessary.

類風濕關節炎合并毛霉菌肺部感染一例

Risk Factors of Invasive Fungal Infection in Respiratory Ward: A Retrospective Case Control Study

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.