BACKGROUND Invasive fungal infections,particularly candidemia,pose significant clinical challenges globally.Understanding local epidemiology,species distribution,and antifungal susceptibility patterns is crucial for e...BACKGROUND Invasive fungal infections,particularly candidemia,pose significant clinical challenges globally.Understanding local epidemiology,species distribution,and antifungal susceptibility patterns is crucial for effective management despite regional variations.AIM To investigate the epidemiology,species distribution,antifungal susceptibility patterns,and associated risk factors of candidemia among patients in Bahrain from 2021 to 2023.METHODS This retrospective study analyzed demographic data,Candida species distribution,antifungal susceptibility profiles,and risk factors among candidemia patients treated at a tertiary care hospital in Bahrain over three years.Data was collected from medical records and analyzed using descriptive statistics.RESULTS A total of 430 candidemia cases were identified.The mean age of patients was 65.7 years,with a mortality rate of 85.5%.Candida albicans(C.albicans)was the most common species,followed by Candida parapsilosis,Candida tropicalis(C.tropicalis),and emerging multidrug-resistant Candida auris(C.auris).Antifungal susceptibility varied across species,with declining susceptibility to azoles observed,particularly among C.albicans and C.tropicalis.Major risk factors included central venous catheters,broad-spectrum antibiotics,and surgical procedures.CONCLUSION This study highlights the substantial burden of candidemia among older adults in Bahrain,characterized by diverse Candida species.It also concerns levels of antifungal resistance,notably in C.auris.The findings underscore the importance of local epidemiological surveillance and tailored treatment strategies to improve outcomes and mitigate the spread of multidrug-resistant Candida species.Future research should focus on molecular resistance mechanisms and optimizing therapeutic approaches to address this growing public health concern.展开更多
Candidemia is defined as being a yeast infection confirmed by the presence of at least one positive Candida blood culture. It is a life threatening infection causing high mortality. The clinical signs are generally co...Candidemia is defined as being a yeast infection confirmed by the presence of at least one positive Candida blood culture. It is a life threatening infection causing high mortality. The clinical signs are generally compatible with the causative agent (whether there is a deep venous catheter or not). On the other hand and according to the 2012 Revised Chapel Hill Classification, granulomatosis with polyangiitis GPA is classified as a vasculitis associated with antineutrophil cytoplasmic antibodies ANCA. It is a systemic disease characterized by the anatomopathological aspect of granuloma. We report the case of a patient who presented an atypical and a very rare revealing mode of GPA which was a bronchopulmonary candidiasis complicated by candidemia. Despite its controversy, the combination in the acute phase of antifungal treatment based on intravenous voriconazole and glucocorticoid therapy has made it possible to control candidemia and calm vasculitis.展开更多
Objective:To evaluate the prevalence of Candida species in cancer patients with candidemia around the world,and to identify related risk factors and their antifungal resistance,with an emphasis on non-albicans Candida...Objective:To evaluate the prevalence of Candida species in cancer patients with candidemia around the world,and to identify related risk factors and their antifungal resistance,with an emphasis on non-albicans Candida species(NACs).Methods:The published papers related to the subject were systematically searched in databases of MEDLINE(including PubMed),Web of Science,Scopus,Science Direct,and Google Scholar between the 1st January 2000 and 21st April 2021.Results:Among the 4546 records,69 studies met the inclusion criteria.The pooled prevalence of NACs in cancer patients with candidemia was 62%(95%CI 58%-67%;I2=94.85%,P=0.00).Based on type of cancer,the pooled prevalence of NACs in hematologic and solid cancer patients were 68%(95%CI 65%-70%)and 52%(95%CI 49%-54%),respectively.Among NACs,Candida(C.)parapsilosis was the most frequently isolated organism followed by C.tropicalis and C.glabrata.In addition,the therapeutic usage of antibiotics was found as the most common risk factor,accounting for 85%(95%CI 81%-89%)and central venous catheter accounting for 69%(95%CI 62%-77%).Conclusions:The incidence of Candida bloodstream infections among cancer patients is a growing concern,especially when the etiologic agents of candidemia tend to shift towards NACs.展开更多
Micafungin is an efficacious and well-tolerated echinocandin with in vitro and in vivo activity against a broad range of Candida species. The objective of this randomized, double-blind study was to examine the pharmac...Micafungin is an efficacious and well-tolerated echinocandin with in vitro and in vivo activity against a broad range of Candida species. The objective of this randomized, double-blind study was to examine the pharmacokinetic parameters of micafungin and its metabolites in a subset of adult patients with invasive candidiasis or candidemia. The study was conducted at 27 sites in four countries, including eight in Europe. Micafungin 100 mg/day or liposomal amphotericin B 3 mg/kg/day were administered once daily as a 1-hour infusion in a blinded manner. The minimum duration of therapy was 14 days. To define plasma analyte (micafungin and metabolites) concentration-time profiles, serial blood samples were collected after the first dose (Day 1), and at the end of therapy (EOT). For patients who received treatment for longer than 2 weeks, an additional profile was obtained during Week 2. To determine plasma trough analyte concentrations, blood samples were collected immediately prior to dosing on Day 2, Week 2, and EOT. In 20 evaluable, micafungin-treated patients, plasma micafungin concentrations peaked at completion of the 1-hour infusion and then declined biexponentially. Plasma concentrations of the micafungin metabolites (M-1, M-2, and M-5) remained low (<1 μg/mL) throughout the study. The mean half-life and clearance of micafungin were largely unchanged with repeated dosing up to 28 days, and no evidence of micafungin accumulation was observed. These data provide further support for the predictability of micafungin pharmacokinetics in adult patients with invasive candidiasis and candidemia.展开更多
Candidemia is one of the four most common nosocomial blood infections and is the most common hospital-acquired fungemia in a recent multi-institutional study from the US. The mortality of Candidemia can be up to 50%. ...Candidemia is one of the four most common nosocomial blood infections and is the most common hospital-acquired fungemia in a recent multi-institutional study from the US. The mortality of Candidemia can be up to 50%. Fluconazole is a triazole derivative widely used for the treatment of invasive candidiasis. It was recommended as first-line drugs for the treatment and prevention of mycoses. In our study, we aimed to optimise the dosage of fluconazole with gender against Candida spp. based on pharmacokinetic/pharmacodynamics (PK/PD) analysis. We collected the published data about pharmacokinetic parameters of fluconazole and the MIC distribution of Candida spp. on fluconazole. We decided to evaluate the gender between males and females with the pharmacokinetics of fluconazole. Using probability of target attainment (PTA) and cumulative fraction of response (CFR) as indexes, crystal ball software 11.1.2.4 was used for Monte Carlo simulation of different dosage regimens of different males and females. For C. albicans, C. tropicalis and C. lusitaniae, when doses of regimen are 100 mg IV, 200 mg IV and MIC was lower than 1 g/ml, PTA was higher than 90%. For C. tropicalis, each dosing regimen and MIC was less than 2 g/ml. PTA was higher than 90%. As C. glabrata, C. parapsilosis, C. krusei, C. guilliermondii for PTA with more than 90%, MIC of fluconazole 200 mg were less than 32 g/ml, 64 g/ml and 64 g/ml, respectively. For the different dosage regimens 100 mg IV and 200 mg IV of fluconazole for Candida spp., it is desirable that fluconazole dosage regimens take into account both the gender of the patient.展开更多
Objective To investigate the clinical features and prognostic factors of nosocomially acquired candidemia.Methods A retrospective analysis was conducted for hospitalized patients with nosocomial candidemia between Jan...Objective To investigate the clinical features and prognostic factors of nosocomially acquired candidemia.Methods A retrospective analysis was conducted for hospitalized patients with nosocomial candidemia between January 2012 and December 2014 at the First Affiliated Hospital of Anhui Medical University.The univariate展开更多
目的研究念珠菌血症血培养报阳时间(time to positivity,TTP)对念珠菌菌种鉴别的价值。方法收集南京鼓楼医院2018年1月至2023年3月罹患念珠菌血症患者190例,回顾性分析患者基本信息及分离真菌菌种分布;对不同念珠菌的TTP进行统计学分析...目的研究念珠菌血症血培养报阳时间(time to positivity,TTP)对念珠菌菌种鉴别的价值。方法收集南京鼓楼医院2018年1月至2023年3月罹患念珠菌血症患者190例,回顾性分析患者基本信息及分离真菌菌种分布;对不同念珠菌的TTP进行统计学分析,并对热带念珠菌和光滑念珠菌的TTP进行受试者曲线分析。结果190例念珠菌血症患者中60岁以上占62.11%,男性占比高于女性,患者主要分布在重症监护室、心胸外科、普通外科、急诊。190份血液样本共检出白念珠菌79株、热带念珠菌37株、近平滑念珠菌34株、光滑念珠菌26株和其他念珠菌14株。各真菌TTP分别为白念珠菌(35.02±15.92)h、热带念珠菌(17.97±6.09)h、近平滑念珠菌(31.06±10.68)h、光滑念珠菌(56.70±24.92)h;其中,热带念珠菌的TTP<其他念珠菌,差异具有统计学意义(P<0.05);光滑念珠菌的TTP>其他念珠菌,差异具有统计学意义(P<0.0001)。受试者工作曲线显示,热带念珠菌曲线下面积0.9007,95%置信区间(0.8502~0.9513),cut-off值≤23.76 h时的灵敏度为94.59%,特异度为82.35%,阴性预测值和阳性预测值分别为98.44%和56.45%;光滑念珠菌曲线下面积0.8131,95%置信区间(0.7184~0.9078),cut-off值≥46.27 h时的灵敏度为61.54%,特异度为91.46%,阴性预测值和阳性预测值分别为93.75%和53.32%。结论念珠菌血症患者中热带念珠菌TTP<其他念珠菌,光滑念珠菌TTP>其他念珠菌,有助于热带念珠菌、光滑念珠菌与其他念珠菌的早期鉴别。展开更多
文摘BACKGROUND Invasive fungal infections,particularly candidemia,pose significant clinical challenges globally.Understanding local epidemiology,species distribution,and antifungal susceptibility patterns is crucial for effective management despite regional variations.AIM To investigate the epidemiology,species distribution,antifungal susceptibility patterns,and associated risk factors of candidemia among patients in Bahrain from 2021 to 2023.METHODS This retrospective study analyzed demographic data,Candida species distribution,antifungal susceptibility profiles,and risk factors among candidemia patients treated at a tertiary care hospital in Bahrain over three years.Data was collected from medical records and analyzed using descriptive statistics.RESULTS A total of 430 candidemia cases were identified.The mean age of patients was 65.7 years,with a mortality rate of 85.5%.Candida albicans(C.albicans)was the most common species,followed by Candida parapsilosis,Candida tropicalis(C.tropicalis),and emerging multidrug-resistant Candida auris(C.auris).Antifungal susceptibility varied across species,with declining susceptibility to azoles observed,particularly among C.albicans and C.tropicalis.Major risk factors included central venous catheters,broad-spectrum antibiotics,and surgical procedures.CONCLUSION This study highlights the substantial burden of candidemia among older adults in Bahrain,characterized by diverse Candida species.It also concerns levels of antifungal resistance,notably in C.auris.The findings underscore the importance of local epidemiological surveillance and tailored treatment strategies to improve outcomes and mitigate the spread of multidrug-resistant Candida species.Future research should focus on molecular resistance mechanisms and optimizing therapeutic approaches to address this growing public health concern.
文摘Candidemia is defined as being a yeast infection confirmed by the presence of at least one positive Candida blood culture. It is a life threatening infection causing high mortality. The clinical signs are generally compatible with the causative agent (whether there is a deep venous catheter or not). On the other hand and according to the 2012 Revised Chapel Hill Classification, granulomatosis with polyangiitis GPA is classified as a vasculitis associated with antineutrophil cytoplasmic antibodies ANCA. It is a systemic disease characterized by the anatomopathological aspect of granuloma. We report the case of a patient who presented an atypical and a very rare revealing mode of GPA which was a bronchopulmonary candidiasis complicated by candidemia. Despite its controversy, the combination in the acute phase of antifungal treatment based on intravenous voriconazole and glucocorticoid therapy has made it possible to control candidemia and calm vasculitis.
文摘Objective:To evaluate the prevalence of Candida species in cancer patients with candidemia around the world,and to identify related risk factors and their antifungal resistance,with an emphasis on non-albicans Candida species(NACs).Methods:The published papers related to the subject were systematically searched in databases of MEDLINE(including PubMed),Web of Science,Scopus,Science Direct,and Google Scholar between the 1st January 2000 and 21st April 2021.Results:Among the 4546 records,69 studies met the inclusion criteria.The pooled prevalence of NACs in cancer patients with candidemia was 62%(95%CI 58%-67%;I2=94.85%,P=0.00).Based on type of cancer,the pooled prevalence of NACs in hematologic and solid cancer patients were 68%(95%CI 65%-70%)and 52%(95%CI 49%-54%),respectively.Among NACs,Candida(C.)parapsilosis was the most frequently isolated organism followed by C.tropicalis and C.glabrata.In addition,the therapeutic usage of antibiotics was found as the most common risk factor,accounting for 85%(95%CI 81%-89%)and central venous catheter accounting for 69%(95%CI 62%-77%).Conclusions:The incidence of Candida bloodstream infections among cancer patients is a growing concern,especially when the etiologic agents of candidemia tend to shift towards NACs.
文摘Micafungin is an efficacious and well-tolerated echinocandin with in vitro and in vivo activity against a broad range of Candida species. The objective of this randomized, double-blind study was to examine the pharmacokinetic parameters of micafungin and its metabolites in a subset of adult patients with invasive candidiasis or candidemia. The study was conducted at 27 sites in four countries, including eight in Europe. Micafungin 100 mg/day or liposomal amphotericin B 3 mg/kg/day were administered once daily as a 1-hour infusion in a blinded manner. The minimum duration of therapy was 14 days. To define plasma analyte (micafungin and metabolites) concentration-time profiles, serial blood samples were collected after the first dose (Day 1), and at the end of therapy (EOT). For patients who received treatment for longer than 2 weeks, an additional profile was obtained during Week 2. To determine plasma trough analyte concentrations, blood samples were collected immediately prior to dosing on Day 2, Week 2, and EOT. In 20 evaluable, micafungin-treated patients, plasma micafungin concentrations peaked at completion of the 1-hour infusion and then declined biexponentially. Plasma concentrations of the micafungin metabolites (M-1, M-2, and M-5) remained low (<1 μg/mL) throughout the study. The mean half-life and clearance of micafungin were largely unchanged with repeated dosing up to 28 days, and no evidence of micafungin accumulation was observed. These data provide further support for the predictability of micafungin pharmacokinetics in adult patients with invasive candidiasis and candidemia.
文摘Candidemia is one of the four most common nosocomial blood infections and is the most common hospital-acquired fungemia in a recent multi-institutional study from the US. The mortality of Candidemia can be up to 50%. Fluconazole is a triazole derivative widely used for the treatment of invasive candidiasis. It was recommended as first-line drugs for the treatment and prevention of mycoses. In our study, we aimed to optimise the dosage of fluconazole with gender against Candida spp. based on pharmacokinetic/pharmacodynamics (PK/PD) analysis. We collected the published data about pharmacokinetic parameters of fluconazole and the MIC distribution of Candida spp. on fluconazole. We decided to evaluate the gender between males and females with the pharmacokinetics of fluconazole. Using probability of target attainment (PTA) and cumulative fraction of response (CFR) as indexes, crystal ball software 11.1.2.4 was used for Monte Carlo simulation of different dosage regimens of different males and females. For C. albicans, C. tropicalis and C. lusitaniae, when doses of regimen are 100 mg IV, 200 mg IV and MIC was lower than 1 g/ml, PTA was higher than 90%. For C. tropicalis, each dosing regimen and MIC was less than 2 g/ml. PTA was higher than 90%. As C. glabrata, C. parapsilosis, C. krusei, C. guilliermondii for PTA with more than 90%, MIC of fluconazole 200 mg were less than 32 g/ml, 64 g/ml and 64 g/ml, respectively. For the different dosage regimens 100 mg IV and 200 mg IV of fluconazole for Candida spp., it is desirable that fluconazole dosage regimens take into account both the gender of the patient.
文摘Objective To investigate the clinical features and prognostic factors of nosocomially acquired candidemia.Methods A retrospective analysis was conducted for hospitalized patients with nosocomial candidemia between January 2012 and December 2014 at the First Affiliated Hospital of Anhui Medical University.The univariate
文摘目的研究念珠菌血症血培养报阳时间(time to positivity,TTP)对念珠菌菌种鉴别的价值。方法收集南京鼓楼医院2018年1月至2023年3月罹患念珠菌血症患者190例,回顾性分析患者基本信息及分离真菌菌种分布;对不同念珠菌的TTP进行统计学分析,并对热带念珠菌和光滑念珠菌的TTP进行受试者曲线分析。结果190例念珠菌血症患者中60岁以上占62.11%,男性占比高于女性,患者主要分布在重症监护室、心胸外科、普通外科、急诊。190份血液样本共检出白念珠菌79株、热带念珠菌37株、近平滑念珠菌34株、光滑念珠菌26株和其他念珠菌14株。各真菌TTP分别为白念珠菌(35.02±15.92)h、热带念珠菌(17.97±6.09)h、近平滑念珠菌(31.06±10.68)h、光滑念珠菌(56.70±24.92)h;其中,热带念珠菌的TTP<其他念珠菌,差异具有统计学意义(P<0.05);光滑念珠菌的TTP>其他念珠菌,差异具有统计学意义(P<0.0001)。受试者工作曲线显示,热带念珠菌曲线下面积0.9007,95%置信区间(0.8502~0.9513),cut-off值≤23.76 h时的灵敏度为94.59%,特异度为82.35%,阴性预测值和阳性预测值分别为98.44%和56.45%;光滑念珠菌曲线下面积0.8131,95%置信区间(0.7184~0.9078),cut-off值≥46.27 h时的灵敏度为61.54%,特异度为91.46%,阴性预测值和阳性预测值分别为93.75%和53.32%。结论念珠菌血症患者中热带念珠菌TTP<其他念珠菌,光滑念珠菌TTP>其他念珠菌,有助于热带念珠菌、光滑念珠菌与其他念珠菌的早期鉴别。
