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Baker J, Denning DW. The SSS revolution in fungal diagnostics: speed, simplicity and sensitivity. Br Med Bull 2023; 147:62-78. [PMID: 37328942 PMCID: PMC10502448 DOI: 10.1093/bmb/ldad011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 04/24/2023] [Accepted: 05/29/2023] [Indexed: 06/18/2023]
Abstract
INTRODUCTION Fungal disease has historically presented a diagnostic challenge due to its often non-specific clinical presentations, relative infrequency and reliance on insensitive and time-intensive fungal culture. SOURCES OF DATA We present the recent developments in fungal diagnostics in the fields of serological and molecular diagnosis for the most clinically relevant pathogens; developments that have the potential to revolutionize fungal diagnosis through improvements in speed, simplicity and sensitivity. We have drawn on a body of evidence including recent studies and reviews demonstrating the effectiveness of antigen and antibody detection and polymerase chain reaction (PCR) in patients with and without concurrent human immunodeficiency virus infection. AREAS OF AGREEMENT This includes recently developed fungal lateral flow assays, which have a low cost and operator skill requirement that give them great applicability to low-resource settings. Antigen detection for Cryptococcus, Histoplasma and Aspergillus spp. are much more sensitive than culture. PCR for Candida spp., Aspergillus spp., Mucorales and Pneumocystis jirovecii is more sensitive than culture and usually faster. AREAS OF CONTROVERSY Effort must be made to utilize recent developments in fungal diagnostics in clinical settings outside of specialist centres and integrate their use into standard medical practice. Given the clinical similarities of the conditions and frequent co-infection, further study is required into the use of serological and molecular fungal tests, particularly in patients being treated for tuberculosis. GROWING POINTS Further study is needed to clarify the utility of these tests in low-resource settings confounded by a high prevalence of tuberculosis. AREAS TIMELY FOR DEVELOPING RESEARCH The diagnostic utility of these tests may require revision of laboratory work flows, care pathways and clinical and lab coordination, especially for any facility caring for the immunosuppressed, critically ill or those with chronic chest conditions, in whom fungal disease is common and underappreciated.
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Affiliation(s)
- Jacob Baker
- Department of Medicine, Shrewsbury and Telford Hospitals Trust, Mytton Oak Rd, Shrewsbury SY3 8XQ, UK
| | - David W Denning
- Manchester Fungal Infection Group, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
- Global Action For Fungal Infections (GAFFI), Rue Le Corbusier 1208 Geneva, Switzerland
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Comparison of Three β-Glucan Tests for the Diagnosis of Invasive Candidiasis in Intensive Care Units. J Clin Microbiol 2023; 61:e0169122. [PMID: 36700626 PMCID: PMC9945570 DOI: 10.1128/jcm.01691-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
The (1→3)-β-d-glucan (BDG) is a marker of invasive fungal infection that can be detected in serum by different commercial kits. In this study, we compared the performance of the Fungitell assay (FA), the Fungitell STAT assay (STAT), and the Wako β-glucan test (WA) for the diagnosis of invasive candidiasis (IC) in the intensive care unit (ICU). Patients for whom at least one BDG testing was required for a clinical suspicion of IC were retrospectively enrolled. A total of 85 serum samples from 56 patients were tested by the three BDG tests. The rate of IC was 23% (13/56) with a predominance of noncandidemic (intra-abdominal) IC. STAT and WA results exhibited overall good correlation with those obtained by FA (Spearman's coefficient R = 0.90 and R = 0.89, respectively). For the recommended cutoffs of positivity, sensitivity and specificity for IC diagnosis were 77%/51% (FA, 80 pg/mL), 69%/53% (STAT, ratio 1.2), and 54%/65% (WA, 7 pg/mL), respectively. Optimal performance was obtained at 50 pg/mL (FA), ratio 1.3 (STAT), and 3.3 pg/mL (WA) with sensitivity/specificity of 85%/51%, 69%/57%, and 77%/58%, respectively. Overall, the three BDG tests showed comparable but limited performance in this setting with positive and negative predictive values for an estimated IC prevalence of 20% that were in the range of 30 to 35% and 85 to 95%, respectively.
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The Changing Landscape of Invasive Fungal Infections in ICUs: A Need for Risk Stratification to Better Target Antifungal Drugs and the Threat of Resistance. J Fungi (Basel) 2022; 8:jof8090946. [PMID: 36135671 PMCID: PMC9500670 DOI: 10.3390/jof8090946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 09/02/2022] [Accepted: 09/03/2022] [Indexed: 12/02/2022] Open
Abstract
The landscape of invasive candidiasis and invasive aspergillosis has changed dramatically in intensive care units over the past two decades. Today, we are faced with new risk factors such as the emergence of resistance, but are also equipped with new therapeutic strategies and diagnostic tools which are changing epidemiological data and diagnostic algorithms. Some common points need to be addressed: (i) the best way to use microbiological tools and to integrate their results in decisional algorithms; (ii) the need to find the optimum balance between under-diagnosis and overtreatment; (iii) and the need to decipher pathophysiology. In this short review, we will try to illustrate these points.
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Giacobbe DR, Asperges E, Cortegiani A, Grecchi C, Rebuffi C, Zuccaro V, Scudeller L, Bassetti M. Performance of existing clinical scores and laboratory tests for the diagnosis of invasive candidiasis in critically ill, nonneutropenic, adult patients: a systematic review with qualitative evidence synthesis. Mycoses 2022; 65:1073-1111. [PMID: 35938455 DOI: 10.1111/myc.13515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 08/03/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND The Fungal Infections Definitions in Intensive Care Unit (ICU) patients (FUNDICU) project aims to provide standard sets of definitions for invasive fungal diseases in critically ill, adult patients. OBJECTIVES To summarize the available evidence on the diagnostic performance of clinical scores and laboratory tests for invasive candidiasis (IC) in nonneutropenic, adult critically ill patients. METHODS A systematic review was performed to evaluate studies assessing the diagnostic performance for IC of clinical scores and/or laboratory tests vs. a reference standard or a reference definition in critically ill, nonneutropenic, adult patients in ICU. RESULTS Clinical scores, despite the heterogeneity of study populations and IC prevalences, constantly showed a high negative predictive value (NPV) and a low positive predictive value (PPV) for the diagnosis of IC in the target population. Fungal antigen-based biomarkers (with most studies assessing serum beta-D-glucan) retained a high NPV similar to that of clinical scores, with a higher PPV, although the latter showed important heterogeneity across studies, possibly reflecting the targeted or untargeted use of these tests in patients with a consistent clinical picture and risk factors for IC. CONCLUSIONS Both clinical scores and laboratory tests showed high NPV for the diagnosis of IC in nonneutropenic critically ill patients. The PPV of laboratory tests varies significantly according to the baseline patients' risk of IC. This qualitative synthesis will provide the FUNDICU panel with baseline evidence to be considered during the development of definitions of IC in critically ill, nonneutropenic adult patients in ICU.
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Affiliation(s)
- Daniele Roberto Giacobbe
- Department of Health Sciences, University of Genoa, Genoa, Italy.,Clinica Malattie Infettive, Ospedale Policlinico San Martino - IRCCS, Genoa, Italy
| | - Erika Asperges
- Infectious Diseases Unit, IRCCS San Matteo, Pavia, Italy
| | - Andrea Cortegiani
- Department of Surgical, Oncological and Oral Science (Di.Chir.On.S.), University of Palermo, Palermo, Italy.,Department of Anesthesia, Intensive Care and Emergency, Policlinico Paolo Giaccone, Palermo, Italy
| | | | - Chiara Rebuffi
- Scientific Direction, IRCCS Istituto Giannina Gaslini, Scientific Direction, Italy
| | | | - Luigia Scudeller
- Research and Innovation Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Matteo Bassetti
- Department of Health Sciences, University of Genoa, Genoa, Italy.,Clinica Malattie Infettive, Ospedale Policlinico San Martino - IRCCS, Genoa, Italy
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Barantsevich N, Barantsevich E. Diagnosis and Treatment of Invasive Candidiasis. Antibiotics (Basel) 2022; 11:antibiotics11060718. [PMID: 35740125 PMCID: PMC9219674 DOI: 10.3390/antibiotics11060718] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/14/2022] [Accepted: 05/18/2022] [Indexed: 02/06/2023] Open
Abstract
Candida species, belonging to commensal microbial communities in humans, cause opportunistic infections in individuals with impaired immunity. Pathogens encountered in more than 90% cases of invasive candidiasis include C. albicans, C. glabrata, C. krusei, C. tropicalis, and C. parapsilosis. The most frequently diagnosed invasive infection is candidemia. About 50% of candidemia cases result in deep-seated infection due to hematogenous spread. The sensitivity of blood cultures in autopsy-proven invasive candidiasis ranges from 21% to 71%. Non-cultural methods (beta-D-glucan, T2Candida assays), especially beta-D-glucan in combination with procalcitonin, appear promising in the exclusion of invasive candidiasis with high sensitivity (98%) and negative predictive value (95%). There is currently a clear deficiency in approved sensitive and precise diagnostic techniques. Omics technologies seem promising, though require further development and study. Therapeutic options for invasive candidiasis are generally limited to four classes of systemic antifungals (polyenes, antimetabolite 5-fluorocytosine, azoles, echinocandins) with the two latter being highly effective and well-tolerated and hence the most widely used. Principles and methods of treatment are discussed in this review. The emergence of pan-drug-resistant C. auris strains indicates an insufficient choice of available medications. Further surveillance, alongside the development of diagnostic and therapeutic methods, is essential.
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Hamilton DO, Lambe T, Howard A, Crossey P, Hughes J, Duarte R, Welters ID. Can Beta-D-Glucan testing as part of the diagnostic pathway for Invasive Fungal Infection reduce anti-fungal treatment costs? Med Mycol 2022; 60:6588046. [PMID: 35583234 DOI: 10.1093/mmy/myac034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 05/02/2022] [Accepted: 05/19/2022] [Indexed: 11/13/2022] Open
Abstract
We performed a cost comparison of the current diagnostic and treatment pathway for invasive fungal infection (IFI) versus a proposed pathway that incorporates Beta-D-Glucan (BDG) testing from the NHS perspective. A fungal pathogen was identified in 58/107 (54.2%) patients treated with systemic anti-fungals in the Critical Care Department. Mean therapy duration was 23 days (standard deviation [SD] = 22 days), and cost was £5590 (SD = £7410) per patient. Implementation of BDG tests in the diagnostic and treatment pathway of patients with suspected IFI could result in a mean saving of £1643 per patient should a result be returned within two days.
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Affiliation(s)
- David O Hamilton
- Critical Care Department, Royal Liverpool University Hospital, Liverpool University Hospitals NHS Foundation Trust, Liverpool, United Kingdom.,Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, United Kingdom
| | - Tosin Lambe
- Liverpool Reviews and Implementation Group, Department of Health Data Science, University of Liverpool, Liverpool, United Kingdom
| | - Alexander Howard
- Microbiology Department, Royal Liverpool University Hospital, Liverpool University Hospitals NHS Foundation Trust, Liverpool, United Kingdom
| | - Patricia Crossey
- Critical Care Department, Royal Liverpool University Hospital, Liverpool University Hospitals NHS Foundation Trust, Liverpool, United Kingdom
| | - Jennifer Hughes
- Critical Care Department, Royal Liverpool University Hospital, Liverpool University Hospitals NHS Foundation Trust, Liverpool, United Kingdom
| | - Rui Duarte
- Liverpool Reviews and Implementation Group, Department of Health Data Science, University of Liverpool, Liverpool, United Kingdom
| | - Ingeborg D Welters
- Critical Care Department, Royal Liverpool University Hospital, Liverpool University Hospitals NHS Foundation Trust, Liverpool, United Kingdom.,Institute of Life Course and Medical Sciences, University of Liverpool, Liverpool, United Kingdom
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Lin J, Zhou M, Chen J, Zhang L, Lu M, Liu Z. De-escalation from Echinocandins to Azole Treatment in Critically Ill Patients with Candidemia. Int J Infect Dis 2022; 121:69-74. [PMID: 35472525 DOI: 10.1016/j.ijid.2022.04.044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 04/18/2022] [Accepted: 04/20/2022] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVES This study aims to further explore the duration of echinocandins and analyze the de-escalation (DE) strategy in patients with candidemia. METHODS Multivariable logistic regression was used to evaluate the association between the duration of echinocandins (≤ 5-day group vs > 5-day group) and in-hospital mortality. RESULTS Of the 357 cases of candidemia, 200 patients (56.02%) were identified in the ≤5-day group. The ≤5-day group did not have a higher in-hospital mortality than the >5-day group in the multivariable model (odds ratio [OR] 1.536, 95% confidence interval (CI) 0.837-2.819, P-value = 0.166), and the finding was validated by the propensity score matching and inverse probability of treatment weighting models. Subgroup analyses showed that patients in the ≤5-day group without DE may have a poor prognosis (OR 4.223, 95% CI 1.773-10.055, P-value = 0.001). The patients in the ≤5-day group, with a sequential organ failure assessment (SOFA) score of ≥3 evaluated at the time of stopping echinocandins, may have a poor prognosis (OR 2.164, 95% CI 1.009-4.641, P-value = 0.047). CONCLUSION In critically ill adult patients with candidemia, the ≤5-day group with DE was feasible. However, the SOFA score was recommended when stopping echinocandins to ensure the safety of DE therapy.
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Affiliation(s)
- Jing Lin
- Department of Infectious Disease, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China; Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Menglan Zhou
- Department of Clinical Laboratory, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China; Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, China
| | - Jialong Chen
- Graduate School, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China; Department of Respiratory and Critical Care Medicine, Peking Hospital, Beijing, China
| | - Li Zhang
- Department of Infectious Disease, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Minya Lu
- Department of Clinical Laboratory, State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China; Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, China
| | - Zhengyin Liu
- Department of Infectious Disease, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China.
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8
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Zakhem AE, Istambouli R, Jabbour JF, Hindy JR, Gharamti A, Kanj SS. Diagnosis and Management of Invasive Candida Infections in Critically Ill Patients. Semin Respir Crit Care Med 2022; 43:46-59. [PMID: 35172358 DOI: 10.1055/s-0041-1741009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Invasive candidiasis (IC) has become a serious problem in the intensive care unit patients with an attributable mortality rate that can reach up to 51%. Multiple global surveillance studies have shown an increasing incidence of candidemia. Despite their limited sensitivity (21-71%), cultures remain the gold standard for the diagnosis of IC associated with candidemia. Many adjunct laboratory tests exist to support or rule out the diagnosis, each with its indications and limitations, including procalcitonin, 1,3-β-D-glucan, mannan and anti-mannan antibodies, and Candida albicans germ tube antibody. In addition, polymerase chain reaction-based methods could expedite species identification in positive blood cultures, helping in guiding early empirical antifungal therapy. The management of IC in critically ill patients can be classified into prophylactic, preemptive, empiric, and directed/targeted therapy of a documented infection. There is no consensus concerning the benefit of prophylactic therapy in critically ill patients. While early initiation of appropriate therapy in confirmed IC is an important determinant of survival, the selection of candidates and drug of choice for empirical systemic antifungal therapy is more controversial. The choice of antifungal agents is determined by many factors, including the host, the site of infection, the species of the isolated Candida, and its susceptibility profile. Echinocandins are considered initial first-line therapy agents. Due to the conflicting results of the various studies on the benefit of preemptive therapy for critically ill patients and the lack of robust evidence, the Infectious Diseases Society of America (IDSA) omitted this category from its updated guidelines and the European Society of Intensive Care Medicine (ESICM) and the Critically Ill Patients Study Group of the European Society of Clinical Microbiology and Infectious Diseases (ESCMID) do not recommend it.
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Affiliation(s)
- Aline El Zakhem
- Division of Infectious Diseases, American University of Beirut Medical Center, Beirut, Lebanon
| | - Rachid Istambouli
- Leeds and York Partnership NHS Foundation Trust, Leeds, United Kingdom
| | - Jean-Francois Jabbour
- Department of Internal Medicine, Saint George Hospital University Medical Center, University of Balamand, Beirut, Lebanon
| | - Joya-Rita Hindy
- Division of Infectious Diseases, Department of Internal Medicine, Mayo Clinic College of Medicine, Rochester, Minnesota
| | - Amal Gharamti
- Department of Internal Medicine, Yale School of Medicine, Waterbury Hospital, Waterbury, Connecticut
| | - Souha S Kanj
- Division of Infectious Diseases, American University of Beirut Medical Center, Beirut, Lebanon
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Kollef MH, Shorr AF, Bassetti M, Timsit JF, Micek ST, Michelson AP, Garnacho-Montero J. Timing of antibiotic therapy in the ICU. Crit Care 2021; 25:360. [PMID: 34654462 PMCID: PMC8518273 DOI: 10.1186/s13054-021-03787-z] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Accepted: 10/06/2021] [Indexed: 12/15/2022] Open
Abstract
Severe or life threatening infections are common among patients in the intensive care unit (ICU). Most infections in the ICU are bacterial or fungal in origin and require antimicrobial therapy for clinical resolution. Antibiotics are the cornerstone of therapy for infected critically ill patients. However, antibiotics are often not optimally administered resulting in less favorable patient outcomes including greater mortality. The timing of antibiotics in patients with life threatening infections including sepsis and septic shock is now recognized as one of the most important determinants of survival for this population. Individuals who have a delay in the administration of antibiotic therapy for serious infections can have a doubling or more in their mortality. Additionally, the timing of an appropriate antibiotic regimen, one that is active against the offending pathogens based on in vitro susceptibility, also influences survival. Thus not only is early empiric antibiotic administration important but the selection of those agents is crucial as well. The duration of antibiotic infusions, especially for β-lactams, can also influence antibiotic efficacy by increasing antimicrobial drug exposure for the offending pathogen. However, due to mounting antibiotic resistance, aggressive antimicrobial de-escalation based on microbiology results is necessary to counterbalance the pressures of early broad-spectrum antibiotic therapy. In this review, we examine time related variables impacting antibiotic optimization as it relates to the treatment of life threatening infections in the ICU. In addition to highlighting the importance of antibiotic timing in the ICU we hope to provide an approach to antimicrobials that also minimizes the unnecessary use of these agents. Such approaches will increasingly be linked to advances in molecular microbiology testing and artificial intelligence/machine learning. Such advances should help identify patients needing empiric antibiotic therapy at an earlier time point as well as the specific antibiotics required in order to avoid unnecessary administration of broad-spectrum antibiotics.
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Affiliation(s)
- Marin H Kollef
- Division of Pulmonary and Critical Care Medicine, Washington University School of Medicine, 660 South Euclid Avenue, MSC 8052-43-14, St. Louis, MO, 63110, USA.
| | - Andrew F Shorr
- Pulmonary and Critical Care Medicine, Medstar Washington Hospital, Washington, DC, USA
| | - Matteo Bassetti
- Infectious Diseases Unit, Department of Health Sciences, San Martino Policlinico Hospital - IRCCS, University of Genoa, Genoa, Italy
| | - Jean-Francois Timsit
- AP-HP, Bichat Claude Bernard Hospital, Medical and Infectious Diseases ICU (MI2), IAME, INSERM, Université de Paris, Paris, France
| | - Scott T Micek
- Department of Pharmacy Practice, University of Health Sciences and Pharmacy, St. Louis, MO, USA
| | - Andrew P Michelson
- Division of Pulmonary and Critical Care Medicine, Washington University School of Medicine, 660 South Euclid Avenue, MSC 8052-43-14, St. Louis, MO, 63110, USA
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Murri R, Lardo S, De Luca A, Posteraro B, Torelli R, De Angelis G, Giovannenze F, Taccari F, Pavan L, Parroni L, Sanguinetti M, Fantoni M. Post-Prescription Audit Plus Beta-D-Glucan Assessment Decrease Echinocandin Use in People with Suspected Invasive Candidiasis. MEDICINA (KAUNAS, LITHUANIA) 2021; 57:medicina57070656. [PMID: 34206911 PMCID: PMC8306264 DOI: 10.3390/medicina57070656] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/13/2021] [Accepted: 06/23/2021] [Indexed: 01/08/2023]
Abstract
Background and Objectives: Overtreatment with antifungal drugs is often observed. Antifungal stewardship (AFS) focuses on optimizing the treatment for invasive fungal diseases. The objective of the present study was to evaluate the utility of a post-prescription audit plus beta-D-glucan (BDG) assessment on reducing echinocandin use in persons with suspected invasive candidiasis. Materials and Methods: This is a prospective, pre-post quasi-experimental study of people starting echinocandins for suspected invasive candidiasis. The intervention of the study included review of each echinocandin prescription and discontinuation of treatment if a very low probability of fungal disease or a negative BDG value were found. Pre-intervention data were compared with the intervention phase. The primary outcome of the study was the duration of echinocandin therapy. Secondary outcomes were length of hospital stay and mortality. Results: Ninety-two echinocandin prescriptions were reviewed, 49 (53.3%) in the pre-intervention phase and 43 (46.7%) in the intervention phase. Discontinuation of antifungal therapy was possible in 21 of the 43 patients in the intervention phase (48.8%). The duration of echinocandin therapy was 7.4 (SD 4.7) in the pre-intervention phase, 4.1 days (SD 2.9) in persons undergoing the intervention, and 8.6 (SD 7.3) in persons in whom the intervention was not feasible (p at ANOVA = 0.016). Length of stay and mortality did not differ between pre-intervention and intervention phases. Conclusions: An intervention based on pre-prescription restriction and post-prescription audit when combined with BDG measurement is effective in optimizing antifungal therapy by significantly reducing excessive treatment duration.
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Affiliation(s)
- Rita Murri
- Department of Laboratory and Infectious Diseases Sciences, A. Gemelli University Hospital Foundation IRCCS, 00168 Rome, Italy; (B.P.); (R.T.); (G.D.A.); (F.G.); (F.T.); (M.S.); (M.F.)
- Infectious Diseases Section, Department of Safety and Bioethics, Catholic University of the Sacred Heart, 00168 Rome, Italy
- Correspondence: ; Tel.: +39-333-456-2124
| | - Sara Lardo
- A. Gemelli University Hospital Foundation IRCCS, 00168 Rome, Italy;
| | - Alessio De Luca
- Pharmacy Complex Operative Unit, A. Gemelli University Hospital Foundation IRCCS, 00168 Rome, Italy; (A.D.L.); (L.P.); (L.P.)
| | - Brunella Posteraro
- Department of Laboratory and Infectious Diseases Sciences, A. Gemelli University Hospital Foundation IRCCS, 00168 Rome, Italy; (B.P.); (R.T.); (G.D.A.); (F.G.); (F.T.); (M.S.); (M.F.)
- Department of Basic Biotechnology, Clinical Intensive Care and Perioperative Sciences, Catholic University of the Sacred Heart, 00168 Rome, Italy
| | - Riccardo Torelli
- Department of Laboratory and Infectious Diseases Sciences, A. Gemelli University Hospital Foundation IRCCS, 00168 Rome, Italy; (B.P.); (R.T.); (G.D.A.); (F.G.); (F.T.); (M.S.); (M.F.)
- Department of Basic Biotechnology, Clinical Intensive Care and Perioperative Sciences, Catholic University of the Sacred Heart, 00168 Rome, Italy
| | - Giulia De Angelis
- Department of Laboratory and Infectious Diseases Sciences, A. Gemelli University Hospital Foundation IRCCS, 00168 Rome, Italy; (B.P.); (R.T.); (G.D.A.); (F.G.); (F.T.); (M.S.); (M.F.)
- Department of Basic Biotechnology, Clinical Intensive Care and Perioperative Sciences, Catholic University of the Sacred Heart, 00168 Rome, Italy
| | - Francesca Giovannenze
- Department of Laboratory and Infectious Diseases Sciences, A. Gemelli University Hospital Foundation IRCCS, 00168 Rome, Italy; (B.P.); (R.T.); (G.D.A.); (F.G.); (F.T.); (M.S.); (M.F.)
- Infectious Diseases Section, Department of Safety and Bioethics, Catholic University of the Sacred Heart, 00168 Rome, Italy
| | - Francesco Taccari
- Department of Laboratory and Infectious Diseases Sciences, A. Gemelli University Hospital Foundation IRCCS, 00168 Rome, Italy; (B.P.); (R.T.); (G.D.A.); (F.G.); (F.T.); (M.S.); (M.F.)
| | - Lucia Pavan
- Pharmacy Complex Operative Unit, A. Gemelli University Hospital Foundation IRCCS, 00168 Rome, Italy; (A.D.L.); (L.P.); (L.P.)
| | - Lucia Parroni
- Pharmacy Complex Operative Unit, A. Gemelli University Hospital Foundation IRCCS, 00168 Rome, Italy; (A.D.L.); (L.P.); (L.P.)
| | - Maurizio Sanguinetti
- Department of Laboratory and Infectious Diseases Sciences, A. Gemelli University Hospital Foundation IRCCS, 00168 Rome, Italy; (B.P.); (R.T.); (G.D.A.); (F.G.); (F.T.); (M.S.); (M.F.)
- Department of Basic Biotechnology, Clinical Intensive Care and Perioperative Sciences, Catholic University of the Sacred Heart, 00168 Rome, Italy
| | - Massimo Fantoni
- Department of Laboratory and Infectious Diseases Sciences, A. Gemelli University Hospital Foundation IRCCS, 00168 Rome, Italy; (B.P.); (R.T.); (G.D.A.); (F.G.); (F.T.); (M.S.); (M.F.)
- Infectious Diseases Section, Department of Safety and Bioethics, Catholic University of the Sacred Heart, 00168 Rome, Italy
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11
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Fortún J, Buitrago MJ, Gioia F, Gómez-Gª de la Pedrosa E, Alvarez ME, Martín-Dávila P, Pintado V, Cobeta P, Martinez-Castro N, Soriano C, Moreno I, Corral S, Muñoz P, Moreno-Jimenez G, Cuenca-Estrella M, Moreno-Guillen S. Roles of the multiplex real-time PCR assay and β-D-glucan in a high-risk population for intra-abdominal candidiasis (IAC). Med Mycol 2021; 58:789-796. [PMID: 31811285 DOI: 10.1093/mmy/myz123] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 11/14/2019] [Accepted: 11/23/2019] [Indexed: 01/05/2023] Open
Abstract
Multiplex quantitative real-time PCR (MRT-PCR) using blood can improve the diagnosis of intra-abdominal candidiasis (IAC). We prospectively studied 39 patients with suspected IAC in the absence of previous antifungal therapy. Blood cultures, MRT-PCR, and β-D-glucan (BDG) in serum were performed in all patients. IAC was defined according to the 2013 European Consensus criteria. For MRT-PCR, the probes targeted the ITS1 or ITS2 regions of ribosomal DNA. Candidaemia was confirmed only in four patients (10%), and IAC criteria were present in 17 patients (43.6%). The sensitivity of MRT-PCR was 25% but increased to 63.6% (P = .06) in plasma obtained prior to volume overload and transfusion; specificity was above 85% in all cases. BDG performance was improved using a cutoff > 260 pg/ml, and improvement was not observed in samples obtained before transfusion. In this cohort of high risk of IAC and low rate of bloodstream infection, the performance of non-culture-based methods (MRT-PCR or BDG) was moderate but may be a complementary tool given the limitations of diagnostic methods available in clinical practice. Volume overload requirements, in combination with other factors, decrease the accuracy of MRT-PCR in patients with IAC.
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Affiliation(s)
- J Fortún
- Infectious Diseases Department; Hospital Ramón y Cajal, Madrid
| | - M J Buitrago
- Reference Laboratory in Mycology; Centro Nacional Microbiología, Majadahonda
| | - F Gioia
- Infectious Diseases Department; Hospital Ramón y Cajal, Madrid
| | | | - M E Alvarez
- Infectious Diseases Department; Hospital Ramón y Cajal, Madrid
| | - P Martín-Dávila
- Infectious Diseases Department; Hospital Ramón y Cajal, Madrid
| | - V Pintado
- Infectious Diseases Department; Hospital Ramón y Cajal, Madrid
| | - P Cobeta
- Anaesthetic Department and Surgical Intensive Care Unit; Hospital Ramón y Cajal, Madrid
| | - N Martinez-Castro
- Anaesthetic Department and Surgical Intensive Care Unit; Hospital Ramón y Cajal, Madrid
| | - C Soriano
- Intensive Medicine Department and Medical Intensive Care Unit; Hospital Ramón y Cajal, Madrid
| | - I Moreno
- Surgey Department; Hospital Ramón y Cajal, Madrid
| | - S Corral
- Surgey Department; Hospital Ramón y Cajal, Madrid
| | - P Muñoz
- Clinical Microbiology and Infectious Diseases Department; Hospital Gregorio Marañon, Madrid
| | - G Moreno-Jimenez
- Hematology Department; Blood Bank Unit. Hospital Ramón y Cajal, Madrid
| | - M Cuenca-Estrella
- Reference Laboratory in Mycology; Centro Nacional Microbiología, Majadahonda
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Andrade JC, Kumar S, Kumar A, Černáková L, Rodrigues CF. Application of probiotics in candidiasis management. Crit Rev Food Sci Nutr 2021; 62:8249-8264. [PMID: 34024191 DOI: 10.1080/10408398.2021.1926905] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Candidiasis (e.g., oral, gastrointestinal, vaginal, urinary tract, systemic) is a worldwide growing problem, since antifungal resistance and immunosuppression states are rising. To address this problem, very few drugs are available for the treatment of Candida spp. infections. Therefore, novel therapeutic strategies are urgently required. Probiotics have been proposed for the prevention and treatment of bacterial infections due to their safety record and efficacy, however, little is still known about their potential role regarding fungal infections. The purpose of this review is to present an updated summary of the evidence of the antifungal effects of probiotics along with a discussion of their potential use as an alternative/complementary therapy against Candida spp. infections. Thus, we performed a literature search using appropriate keywords ("Probiotic + Candida", "Candidiasis treatment", and "Probiotic + candidiasis") to retrieve relevant studies (both preclinical and clinical) with special emphasis on the works published in the last 5 years. An increasing amount of evidence has shown the potential usefulness of probiotics in the management of oral and vulvovaginal candidiasis in recent years. Among other results, we found that, as for bacterial infections, Lactobacillus, Bifidobacterium, and Saccharomyces are the most studied and effective genus for this purpose. However, in other areas, particularly in skincandidiaisis, studies are low or lacking. Thus, further investigation is necessary including in vitro and in vivo studies to establish the usefulness of probiotics in the management of candidiasis.
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Affiliation(s)
- José Carlos Andrade
- CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Rua Central de Gandra, Gandra PRD, Portugal
| | - Sunil Kumar
- Faculty of Biosciences, Institute of Biosciences and Technology, Shri Ramswaroop Memorial University, Barabanki, Uttar Pradesh, India
| | - Awanish Kumar
- Department of Biotechnology, National Institute of Technology, Raipur, Chhattisgarh, India
| | - Lucia Černáková
- Department of Microbiology and Virology, Faculty of Natural Sciences, Comenius University in Bratislava, Bratislava, Slovakia
| | - Célia F Rodrigues
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Porto, Portugal
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Lamoth F, Akan H, Andes D, Cruciani M, Marchetti O, Ostrosky-Zeichner L, Racil Z, Clancy CJ. Assessment of the Role of 1,3-β-d-Glucan Testing for the Diagnosis of Invasive Fungal Infections in Adults. Clin Infect Dis 2021; 72:S102-S108. [PMID: 33709130 DOI: 10.1093/cid/ciaa1943] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Detection of 1,3-β-d-glucan (BDG) in serum has been evaluated for its inclusion as a mycological criterion of invasive fungal infections (IFI) according to EORTC and Mycoses Study Group (MSG) definitions. BDG testing may be useful for the diagnosis of both invasive aspergillosis and invasive candidiasis, when interpreted in conjunction with other clinical/radiological signs and microbiological markers of IFI. However, its performance and utility vary according to patient population (hematologic cancer patients, solid-organ transplant recipients, intensive care unit patients) and pretest likelihood of IFI. The objectives of this article are to provide a systematic review of the performance of BDG testing and to assess recommendations for its use and interpretation in different clinical settings.
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Affiliation(s)
- F Lamoth
- Infectious Diseases Service, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
- Institute of Microbiology, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - H Akan
- Ankara University, Faculty of Medicine, Cebeci Campus, Hematology Clinical Research Unit, Ankara, Turkey
| | - D Andes
- Department of Medicine and Microbiology and Immunology, University of Wisconsin, Madison, Wisconsin, USA
| | - M Cruciani
- Infectious Diseases Unit, G. Fracastoro Hospital, San Bonifacio, Verona, Italy
| | - O Marchetti
- Infectious Diseases Service, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
- Department of Medicine, Ensemble Hospitalier de La Côte, Morges, Switzerland
| | - L Ostrosky-Zeichner
- Division of Infectious Diseases, McGovern Medical School, Houston, Texas, USA
| | - Z Racil
- Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - C J Clancy
- Division of Infectious Diseases, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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14
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Machado M, Chamorro de Vega E, Martínez-Jiménez MDC, Rodríguez-González CG, Vena A, Navarro R, Zamora-Cintas MI, Agnelli C, Olmedo M, Galar A, Guinea J, Fernández-Cruz A, Alonso R, Bouza E, Muñoz P, Valerio M. Utility of 1,3 β-d-Glucan Assay for Guidance in Antifungal Stewardship Programs for Oncologic Patients and Solid Organ Transplant Recipients. J Fungi (Basel) 2021; 7:59. [PMID: 33477250 PMCID: PMC7830184 DOI: 10.3390/jof7010059] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/25/2020] [Accepted: 01/11/2021] [Indexed: 11/29/2022] Open
Abstract
The implementation of 1,3 β-d-glucan (BDG) has been proposed as a diagnostic tool in antifungal stewardship programs (ASPs). We aimed to analyze the influence of serum BDG in an ASP for oncologic patients and solid organ transplant (SOT) recipients. We conducted a pre-post study. In the initial period (PRE), the ASP was based on bedside advice, and this was complemented with BDG in the post-period (POST). Performance parameters of the BDG assay were determined. Antifungal (AF) use adequacy was evaluated using a point score. Clinical outcomes and AF costs were also compared before and after the intervention. Overall, 85 patients were included in the PRE-period and 112 in the POST-period. Probable or proven fungal infections were similar in both groups (54.1% vs. 57.1%; p = 0.67). The determination of BDG contributed to improved management in 75 of 112 patients (66.9%). The AF adequacy score improved in the POST-period (mean 7.75 vs. 9.29; p < 0.001). Median days of empiric AF treatment was reduced in the POST-period (9 vs. 5 days, p = 0.04). All-cause mortality (44.7% vs. 34.8%; p = 0.16) was similar in both periods. The cost of AF treatments was reduced in the POST-period with a difference of 779.6 €/patient. Our data suggest that the use of BDG was a cost-effective strategy that contributed to safely improving the results of an ASP for SOT and oncologic patients.
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Affiliation(s)
- Marina Machado
- Clinical Microbiology and Infectious Diseases Department, Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (M.d.C.M.-J.); (A.V.); (R.N.); (M.I.Z.-C.); (C.A.); (M.O.); (A.G.); (J.G.); (A.F.-C.); (R.A.); (E.B.); (P.M.)
- Instituto de Investigación Sanitaria Gregorio Marañón, 28007 Madrid, Spain; (E.C.d.V.); (C.G.R.-G.)
- Fundación Mutua Madrileña Research Fellowship, 28046 Madrid, Spain
| | - Esther Chamorro de Vega
- Instituto de Investigación Sanitaria Gregorio Marañón, 28007 Madrid, Spain; (E.C.d.V.); (C.G.R.-G.)
- Pharmacy Department, Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain
| | - María del Carmen Martínez-Jiménez
- Clinical Microbiology and Infectious Diseases Department, Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (M.d.C.M.-J.); (A.V.); (R.N.); (M.I.Z.-C.); (C.A.); (M.O.); (A.G.); (J.G.); (A.F.-C.); (R.A.); (E.B.); (P.M.)
- Fundación Mutua Madrileña Research Fellowship, 28046 Madrid, Spain
| | - Carmen Guadalupe Rodríguez-González
- Instituto de Investigación Sanitaria Gregorio Marañón, 28007 Madrid, Spain; (E.C.d.V.); (C.G.R.-G.)
- Pharmacy Department, Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain
| | - Antonio Vena
- Clinical Microbiology and Infectious Diseases Department, Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (M.d.C.M.-J.); (A.V.); (R.N.); (M.I.Z.-C.); (C.A.); (M.O.); (A.G.); (J.G.); (A.F.-C.); (R.A.); (E.B.); (P.M.)
| | - Raquel Navarro
- Clinical Microbiology and Infectious Diseases Department, Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (M.d.C.M.-J.); (A.V.); (R.N.); (M.I.Z.-C.); (C.A.); (M.O.); (A.G.); (J.G.); (A.F.-C.); (R.A.); (E.B.); (P.M.)
| | - María Isabel Zamora-Cintas
- Clinical Microbiology and Infectious Diseases Department, Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (M.d.C.M.-J.); (A.V.); (R.N.); (M.I.Z.-C.); (C.A.); (M.O.); (A.G.); (J.G.); (A.F.-C.); (R.A.); (E.B.); (P.M.)
| | - Caroline Agnelli
- Clinical Microbiology and Infectious Diseases Department, Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (M.d.C.M.-J.); (A.V.); (R.N.); (M.I.Z.-C.); (C.A.); (M.O.); (A.G.); (J.G.); (A.F.-C.); (R.A.); (E.B.); (P.M.)
| | - María Olmedo
- Clinical Microbiology and Infectious Diseases Department, Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (M.d.C.M.-J.); (A.V.); (R.N.); (M.I.Z.-C.); (C.A.); (M.O.); (A.G.); (J.G.); (A.F.-C.); (R.A.); (E.B.); (P.M.)
- Instituto de Investigación Sanitaria Gregorio Marañón, 28007 Madrid, Spain; (E.C.d.V.); (C.G.R.-G.)
| | - Alicia Galar
- Clinical Microbiology and Infectious Diseases Department, Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (M.d.C.M.-J.); (A.V.); (R.N.); (M.I.Z.-C.); (C.A.); (M.O.); (A.G.); (J.G.); (A.F.-C.); (R.A.); (E.B.); (P.M.)
- Instituto de Investigación Sanitaria Gregorio Marañón, 28007 Madrid, Spain; (E.C.d.V.); (C.G.R.-G.)
| | - Jesús Guinea
- Clinical Microbiology and Infectious Diseases Department, Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (M.d.C.M.-J.); (A.V.); (R.N.); (M.I.Z.-C.); (C.A.); (M.O.); (A.G.); (J.G.); (A.F.-C.); (R.A.); (E.B.); (P.M.)
- Instituto de Investigación Sanitaria Gregorio Marañón, 28007 Madrid, Spain; (E.C.d.V.); (C.G.R.-G.)
- CIBER Enfermedades Respiratorias, CIBERES (CB06/06/0058), 28029 Madrid, Spain
| | - Ana Fernández-Cruz
- Clinical Microbiology and Infectious Diseases Department, Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (M.d.C.M.-J.); (A.V.); (R.N.); (M.I.Z.-C.); (C.A.); (M.O.); (A.G.); (J.G.); (A.F.-C.); (R.A.); (E.B.); (P.M.)
| | - Roberto Alonso
- Clinical Microbiology and Infectious Diseases Department, Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (M.d.C.M.-J.); (A.V.); (R.N.); (M.I.Z.-C.); (C.A.); (M.O.); (A.G.); (J.G.); (A.F.-C.); (R.A.); (E.B.); (P.M.)
- Departamento de Medicina, Facultad de Medicina, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Emilio Bouza
- Clinical Microbiology and Infectious Diseases Department, Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (M.d.C.M.-J.); (A.V.); (R.N.); (M.I.Z.-C.); (C.A.); (M.O.); (A.G.); (J.G.); (A.F.-C.); (R.A.); (E.B.); (P.M.)
- Instituto de Investigación Sanitaria Gregorio Marañón, 28007 Madrid, Spain; (E.C.d.V.); (C.G.R.-G.)
- CIBER Enfermedades Respiratorias, CIBERES (CB06/06/0058), 28029 Madrid, Spain
- Departamento de Medicina, Facultad de Medicina, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Patricia Muñoz
- Clinical Microbiology and Infectious Diseases Department, Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (M.d.C.M.-J.); (A.V.); (R.N.); (M.I.Z.-C.); (C.A.); (M.O.); (A.G.); (J.G.); (A.F.-C.); (R.A.); (E.B.); (P.M.)
- Instituto de Investigación Sanitaria Gregorio Marañón, 28007 Madrid, Spain; (E.C.d.V.); (C.G.R.-G.)
- CIBER Enfermedades Respiratorias, CIBERES (CB06/06/0058), 28029 Madrid, Spain
- Departamento de Medicina, Facultad de Medicina, Universidad Complutense de Madrid, 28040 Madrid, Spain
| | - Maricela Valerio
- Clinical Microbiology and Infectious Diseases Department, Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (M.d.C.M.-J.); (A.V.); (R.N.); (M.I.Z.-C.); (C.A.); (M.O.); (A.G.); (J.G.); (A.F.-C.); (R.A.); (E.B.); (P.M.)
- Instituto de Investigación Sanitaria Gregorio Marañón, 28007 Madrid, Spain; (E.C.d.V.); (C.G.R.-G.)
- Fundación Mutua Madrileña Research Fellowship, 28046 Madrid, Spain
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15
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Adequate duration of therapy in severe fungal infections. Curr Opin Crit Care 2021; 26:466-472. [PMID: 32773617 DOI: 10.1097/mcc.0000000000000758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
PURPOSE OF REVIEW To highlight recent findings on the adequate duration of antifungal therapy in patients with invasive fungal disease (IFD). RECENT FINDINGS Plenty of published data available suggest that there is no additional clinical benefit at a certain point after initiation of antifungal treatment in patients with confirmed IFD. Moreover, the prolonged antifungal exposure can be associated with an increased risk of side effects and toxicity as well as striking risk for developing antifungal resistance or rising unnecessary healthcare costs. Recent data suggest that, in the presence of an adequate initial antifungal therapy and adequate source control of the infection, new stratified approaches integrating clinical judgment, biomarkers and microbiological eradication, should be considered as an alternative to the 'one-size-fits-all' treatment duration currently used worldwide. SUMMARY The optimal duration of antifungal therapy is still an unresolved issue that depends by many key elements including the host; the pathogen and its microbiological eradication, the adequateness of initial antifungal therapy and the promptness of source control of the infection. In general, many patients with invasive candidiasis can be treated with a 2 weeks course of antifungal therapy. Longer antifungal course (6 weeks or more) is generally required for patients with invasive aspergilosis.
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Agnelli C, Bouza E, Del Carmen Martínez-Jiménez M, Navarro R, Valerio M, Machado M, Guinea J, Sánchez-Carrillo C, Alonso R, Muñoz P. Clinical Relevance and Prognostic Value of Persistently Negative (1,3)-β-D-Glucan in Adults With Candidemia: A 5-year Experience in a Tertiary Hospital. Clin Infect Dis 2021; 70:1925-1932. [PMID: 31680136 DOI: 10.1093/cid/ciz555] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 06/25/2019] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND The clinical relevance and the potential prognostic role of persistently negative (1,3)-β-D-glucan (BDG) in adults with proven candidemia is unknown. METHODS This retrospective study included all adults diagnosed with candidemia our tertiary university hospital from 2012-2017 who had at least 2 serum BDG determinations throughout the episode of fungemia (Fungitell Assay; positive cut-off ≥80pg/mL). Epidemiology and clinical outcomes were compared between patients with all negative versus any positive BDG tests. Poor clinical outcomes included complications due to candidemia or 30-day all-cause mortality. RESULTS Overall, 26/148 (17.6%) candidemic adults had persistently negative BDG tests. These patients were less likely to present Candida growth in all 3 sets of blood cultures (15.4% vs 45.1%; P = .005) and had less severe clinical presentations (median Pitt score, 0 [interquartile range {IQR} 0-1] vs 1 [IQR 0-2] in patients with any positive BDG test; P = .039). Although adequate treatment was equally provided to both groups (96.2% in persistently negative group vs 93.4 in positive group; P = .599), the persistently negative group had a higher rate of microbiological clearance in the first follow-up blood cultures (92.3% vs 69.7% in positive group; P = .005), fewer complications due to candidemia (7.7% vs 33.6% in positive group; P = .008), a lower 30-day mortality rate (3.8% vs 23.8% in positive group; P = .004), and a shorter in-hospital stay (34 days [IQR 18-55] vs 51 days [IQR 35-91] in positive group; P = .003). In the multivariate analysis, persistently negative BDG tests were independently associated with better prognoses (odds ratio 0.12, 95% confidence interval 0.03-0.49; P = .003). CONCLUSIONS Candidemic patients with persistently negative BDG tests present a better prognosis than the comparative group, probably due to a lower systemic fungal burden. In this context, the appropriate use of persistently negative BDG results could be an aid to individualize therapeutic management in the near future.
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Affiliation(s)
- Caroline Agnelli
- Department of Clinical Microbiology and Infectious Diseases, Hospital General Universitario Gregorio Marañón.,Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.,Department of Medicine, Division of Infectious Diseases, Escola Paulista de Medicina, Universidade Federal de São Paulo, Brazil
| | - Emilio Bouza
- Department of Clinical Microbiology and Infectious Diseases, Hospital General Universitario Gregorio Marañón.,Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CB06/06/0058), Spain.,Department of Medicine, School of Medicine, Universidad Complutense de Madrid, Spain
| | - María Del Carmen Martínez-Jiménez
- Department of Clinical Microbiology and Infectious Diseases, Hospital General Universitario Gregorio Marañón.,Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Raquel Navarro
- Department of Clinical Microbiology and Infectious Diseases, Hospital General Universitario Gregorio Marañón.,Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Maricela Valerio
- Department of Clinical Microbiology and Infectious Diseases, Hospital General Universitario Gregorio Marañón.,Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Marina Machado
- Department of Clinical Microbiology and Infectious Diseases, Hospital General Universitario Gregorio Marañón.,Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.,Department of Medicine, School of Medicine, Universidad Complutense de Madrid, Spain
| | - Jesús Guinea
- Department of Clinical Microbiology and Infectious Diseases, Hospital General Universitario Gregorio Marañón.,Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CB06/06/0058), Spain.,Department of Medicine, School of Medicine, Universidad Complutense de Madrid, Spain
| | - Carlos Sánchez-Carrillo
- Department of Clinical Microbiology and Infectious Diseases, Hospital General Universitario Gregorio Marañón
| | - Roberto Alonso
- Department of Clinical Microbiology and Infectious Diseases, Hospital General Universitario Gregorio Marañón.,Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.,Department of Medicine, School of Medicine, Universidad Complutense de Madrid, Spain
| | - Patricia Muñoz
- Department of Clinical Microbiology and Infectious Diseases, Hospital General Universitario Gregorio Marañón.,Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.,Centro de Investigación Biomédica en Red de Enfermedades Respiratorias (CB06/06/0058), Spain.,Department of Medicine, School of Medicine, Universidad Complutense de Madrid, Spain
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17
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Cutaneous Fungal Infections in Left Ventricular Assist Device Recipients. CURRENT FUNGAL INFECTION REPORTS 2020. [DOI: 10.1007/s12281-020-00396-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Impact of the Beta-Glucan Test on Management of Intensive Care Unit Patients at Risk for Invasive Candidiasis. J Clin Microbiol 2020; 58:JCM.01996-19. [PMID: 32238435 DOI: 10.1128/jcm.01996-19] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 03/10/2020] [Indexed: 11/20/2022] Open
Abstract
The 1,3-beta-d-glucan (BDG) test is used for the diagnosis of invasive candidiasis (IC) in intensive care units (ICUs). However, its utility for patient management is unclear. This study assessed the impact of BDG test results on therapeutic decisions. This was a single-center observational study conducted in an ICU over two 6-month periods. All BDG test requests for the diagnosis of IC were analyzed. Before the second period, the ICU physicians received a pocket card instruction (algorithm) for targeted BDG testing in high-risk patients. The performance of the BDG test for IC diagnosis was assessed, as well as its impact on antifungal (AF) prescription. Overall, 72 patients had ≥1 BDG test, and 14 (19%) patients had an IC diagnosis. The BDG test results influenced therapeutic decisions in 41 (57%) cases. The impact of the BDG test was positive in 30 (73%) of them, as follows: AF abstention/interruption following a negative BDG result (n = 27), and AF initiation/continuation triggered by a positive BDG test result and subsequently confirmed IC (n = 3). In 10 (24%) cases, a positive BDG test result resulted in AF initiation/continuation with no further evidence of IC. A negative BDG result and AF abstention with subsequent IC diagnosis were observed in one case. The positive predictive value (PPV) of BDG was improved if testing was restricted to the algorithm's indications (80% versus 36%, respectively). However, adherence to the algorithm was low (26%), and no benefit of the intervention was observed. The BDG result had an impact on therapeutic decisions in more than half of the cases, which consisted mainly of safe AF interruption/abstention. Targeted BDG testing in high-risk patients improves PPV but is difficult to achieve in ICU.
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19
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Bouza E, Almirante B, García Rodríguez J, Garnacho-Montero J, Salavert M, Muñoz P, Sanguinetti M. Biomarkers of fungal infection: Expert opinion on the current situation. REVISTA ESPANOLA DE QUIMIOTERAPIA 2019. [PMID: 31729203 PMCID: PMC6987620 DOI: 10.37201/req/2260.2019] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The introduction of non-culture-based diagnostic techniques is revolutionizing the world of microbiological diagnosis and infection assessment. Fungi are no exception, and the introduction of biomarkers has opened up enormous expectations for better management of these entities. Biomarkers are diverse, their targets are also diverse and their evaluation has been done preferably in an individualized use and with deficient designs. Less is known about the value of the combined use of biomarkers and the impact of the negativity of two or more biomarkers on antifungal treatment decisions has been poorly studied. Given the paucity of prospective, randomized and definitive studies, we have convened experts from different fields, with an interest in invasive fungal infections, to answer some questions about the current relevant use of fungal biomarkers. This document summarizes the answers of these experts to the different questions.
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Affiliation(s)
- E Bouza
- Emilio Bouza, Instituto de Investigación Sanitaria Gregorio Marañón, Servicio de Microbiología Clínica y E. Infecciosas, C/ Dr. Esquerdo, 46, 28007 Madrid, Spain.
| | | | | | | | | | - P Muñoz
- Patricia Muñoz, Servicio de Microbiología Clínica y Enfermedades Infecciosas, Hospital General Universitario Gregorio Marañón, C/ Dr. Esquerdo, 46, 28007 Madrid, Spain.
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20
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Abstract
PURPOSE OF REVIEW To outline key drivers and components of antifungal stewardship (AFS) programmes, the evidence for specific interventions, and methods to assess performance of programmes. RECENT FINDINGS Recent developments in antifungal resistance and breakthrough invasive fungal diseases have increased the urgency for effective AFS. In practice, however, few hospitals have dedicated AFS programmes. To date, AFS programmes have centred around the provision of expert bedside reviews and have reduced costs and consumption of antifungal agents. Incorporating tools such as fungal diagnostics and therapeutic drug monitoring into AFS programme models is recommended. However, the application and impact of these tools in this context have not been adequately assessed. The effectiveness of AFS programmes has been measured in multiple ways but a standardized method of evaluation remains elusive. Few studies have explored the impact of AFS interventions on patient outcomes. SUMMARY The uptake of formal AFS programmes has been slow. New initiatives integrating AFS tools in programmes, and measuring the impacts on patient outcomes are required given such data are not readily available. A comprehensive approach to evaluate AFS programmes by correlating the quantity and quality of antifungal prescribing with impacts on patient outcomes is needed. Consensus definitions for core AFS metrics are required to benchmark performance and are essential to the resourcing and sustainability of these programmes.
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21
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Bassetti M, Giacobbe DR, Vena A, Brink A. Challenges and research priorities to progress the impact of antimicrobial stewardship. Drugs Context 2019; 8:212600. [PMID: 31516534 PMCID: PMC6726362 DOI: 10.7573/dic.212600] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 07/16/2019] [Accepted: 07/19/2019] [Indexed: 02/06/2023] Open
Abstract
Antimicrobial stewardship programmes have been playing an important role in patient care and hospital policies. These programmes are now recognised as formal strategies for curbing the upward trend in antibiotic resistance and for improving the appropriate antimicrobial and antifungal use. The role of such programs in the era of antimicrobial resistance presents several unique challenges and opportunities, most notably in the diagnostic and therapeutic setting. Controversies remain regarding the most effective interventions and the appropriate design to evaluate their impact. In this review, based on rounds of discussion, we explain the most important challenges faced by antibiotic stewardship and antifungal stewardship programmes. We also try to suggest areas for further research.
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Affiliation(s)
- Matteo Bassetti
- Infectious Diseases Clinic, Department of Medicine, University of Udine, Italy.,Infectious Diseases Unit, Ospedale Policlinico San Martino - IRCCS per l'Oncologia, University of Genoa, Largo R. Benzi, 10, 16132, Genoa, Italy.,Department of Health Sciences, DISSAL, University of Genoa, Genoa, Italy
| | - Daniele Roberto Giacobbe
- Infectious Diseases Unit, Ospedale Policlinico San Martino - IRCCS per l'Oncologia, University of Genoa, Largo R. Benzi, 10, 16132, Genoa, Italy.,Department of Health Sciences, DISSAL, University of Genoa, Genoa, Italy
| | - Antonio Vena
- Infectious Diseases Clinic, Department of Medicine, University of Udine, Italy
| | - Adrian Brink
- Division of Medical Microbiology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
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Martin-Loeches I, Antonelli M, Cuenca-Estrella M, Dimopoulos G, Einav S, De Waele JJ, Garnacho-Montero J, Kanj SS, Machado FR, Montravers P, Sakr Y, Sanguinetti M, Timsit JF, Bassetti M. ESICM/ESCMID task force on practical management of invasive candidiasis in critically ill patients. Intensive Care Med 2019; 45:789-805. [PMID: 30911804 DOI: 10.1007/s00134-019-05599-w] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Accepted: 03/09/2019] [Indexed: 12/21/2022]
Abstract
INTRODUCTION The term invasive candidiasis (IC) refers to both bloodstream and deep-seated invasive infections, such as peritonitis, caused by Candida species. Several guidelines on the management of candidemia and invasive infection due to Candida species have recently been published, but none of them focuses specifically on critically ill patients admitted to intensive care units (ICUs). MATERIAL AND METHODS In the absence of available scientific evidence, the resulting recommendations are based solely on epidemiological and clinical evidence in conjunction with expert opinion. The task force used the GRADE (Grading of Recommendations Assessment, Development, and Evaluation) approach to evaluate the recommendations and assign levels of evidence. The recommendations and their strength were decided by consensus and, if necessary, by vote (modified Delphi process). Descriptive statistics were used to analyze the results of the Delphi process. Statements obtaining > 80% agreement were considered to have achieved consensus. CONCLUSIONS The heterogeneity of this patient population necessitated the creation of a mixed working group comprising experts in clinical microbiology, infectious diseases and intensive care medicine, all chosen on the basis of their expertise in the management of IC and/or research methodology. The working group's main goal was to provide clinicians with clear and practical recommendations to optimize microbiological diagnosis and treatment of IC. The Systemic Inflammation and Sepsis and Infection sections of the European Society of Intensive Care Medicine (ESICM) and the Critically Ill Patients Study Group of the European Society of Clinical Microbiology and Infectious Diseases (ESCMID) therefore decided to develop a set of recommendations for application in non-immunocompromised critically ill patients.
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Affiliation(s)
- Ignacio Martin-Loeches
- Multidisciplinary Intensive Care Research Organization (MICRO), St. James's Hospital, Dublin, Ireland. .,Hospital Clinic, Universidad de Barcelona, CIBERes, Barcelona, Spain.
| | - Massimo Antonelli
- Department of Anesthesiology and Intensive Care Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | | | - George Dimopoulos
- Department of Critical Care, University Hospital ATTIKON, National and Kapodistrian University of Athens, Athens, Greece
| | - Sharon Einav
- General Intensive Care Unit, Shaare Zedek Medical Centre and the Hebrew University Faculty of Medicine, Jerusalem, Israel
| | - Jan J De Waele
- Department of Critical Care Medicine, Ghent University Hospital, Ghent, Belgium
| | - Jose Garnacho-Montero
- Intensive Care Clinical Unit, Hospital Universitario Virgen Macarena, Seville, Spain.,Instituto de Biomedicina de Sevilla (IBIS), Seville, Spain
| | - Souha S Kanj
- Division of Infectious Diseases, American University of Beirut Medical Center, Beirut, Lebanon
| | - Flavia R Machado
- Anesthesiology, Pain and Intensive Care Department, Federal University of Sao Paulo, Sao Paulo, Brazil
| | - Philippe Montravers
- Paris Diderot, Sorbonne Cite University, and Anaesthesiology and Critical Care Medicine, Bichat-Claude Bernard University Hospital, HUPNSV, AP-HP, INSERM, UMR 1152, Paris, France
| | - Yasser Sakr
- Department of Anesthesiology and Intensive Care, Uniklinikum Jena, Jena, Germany
| | - Maurizio Sanguinetti
- Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Institute of Microbiology, Rome, Italy
| | - Jean-Francois Timsit
- UMR 1137, IAME Inserm/University Paris Diderot, Paris, France.,APHP, Bichat Hospital, Intensive Care Unit, Paris, France
| | - Matteo Bassetti
- Infectious Diseases Clinic, Department of Medicine University of Udine and Azienda Sanitaria Universitaria Integrata di Udine, Udine, Italy
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Arendrup MC, Andersen JS, Holten MK, Krarup KB, Reiter N, Schierbeck J, Helleberg M. Diagnostic Performance of T2Candida Among ICU Patients With Risk Factors for Invasive Candidiasis. Open Forum Infect Dis 2019; 6:ofz136. [PMID: 31069244 PMCID: PMC6501878 DOI: 10.1093/ofid/ofz136] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 03/22/2019] [Indexed: 01/08/2023] Open
Abstract
Background Invasive candidiasis (IC) comprises candidemia and deep-seated candidiasis. Blood culture (BC) is the gold standard test, but sensitivity is low. T2Candida is a new diagnostic test. We investigated the performance of T2Candida, BC, and Candida mannan antigen (MAg) for detection of IC in a high-risk intensive care unit (ICU) population. Methods One-hundred twenty-six ICU patients at high risk of IC with sepsis despite 3 days of broad-spectrum antibiotics were included. Paired BC, T2Candida, and MAg were obtained twice weekly (334 sets). Patients were classified into proven, likely, possible, or unlikely IC based on patient record review. Results At enrollment, 92 (77%) patients were receiving antifungal therapy (mainly fluconazole 66%). Fifteen (11.9%) patients were positive by BC (n = 4), T2Candida (n = 11), or MAg (n = 10). The T2Candida species distribution at inclusion (Candida albicans/Candida tropicalis: 8/11 [72.3%] and Candida glabrata/Candida krusei: 3/11 [27.3%]) was supported by the identification of BC or colonizing isolates in 10/11 cases. Patients were classified with proven (11), likely (6), possible (11), and unlikely (98) IC. Defining IC as proven/proven&likely/proven&likely&possible, respectively, the sensitivity was as follows: T2Candida (55%/59%/39%), BC (45%/29%/ 8%), and MAg (36%/41%/32%). The negative predictive value was similar across the tests for proven vs others and proven/likely vs others (94%–96% and 90%–95%, respectively). For test combinations including T2Candida, the sensitivity increased to 64%–65%, without hampering the positive predictive value. Conclusions In conclusion, although the diagnostic performance was modest for all the tests, the combination of T2Candida and BC seemed to have the best diagnostic performance, and thus implementation of T2Candida may improve the diagnosis of IC.
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Affiliation(s)
- Maiken Cavling Arendrup
- Unit of Mycology, Statens Serum Institut, Copenhagen, Denmark.,Department of Clinical Microbiology, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark.,Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Jakob S Andersen
- Department of Intensive Care Medicine, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Mads Kristian Holten
- Department of Intensive Care Medicine, Odense University Hospital, Odense, Denmark
| | - Kenneth B Krarup
- Department of Intensive Care Medicine, Odense University Hospital, Odense, Denmark
| | - Nanna Reiter
- Department of Intensive Care Medicine, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Jens Schierbeck
- Department of Intensive Care Medicine, Odense University Hospital, Odense, Denmark
| | - Marie Helleberg
- Department of Infectious Diseases, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
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Performance of Candida albicans germ tube antibodies (CAGTA) and its association with (1 → 3)-β-D-glucan (BDG) for diagnosis daof invasive candidiasis (IC). Diagn Microbiol Infect Dis 2019; 93:39-43. [DOI: 10.1016/j.diagmicrobio.2018.07.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 07/05/2018] [Accepted: 07/06/2018] [Indexed: 01/01/2023]
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25
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Murri R, Camici M, Posteraro B, Giovannenze F, Taccari F, Ventura G, Scoppettuolo G, Sanguinetti M, Cauda R, Fantoni M. Performance evaluation of the (1,3)-β-D-glucan detection assay in non-intensive care unit adult patients. Infect Drug Resist 2018; 12:19-24. [PMID: 30588044 PMCID: PMC6304239 DOI: 10.2147/idr.s181489] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Objectives To assess the performance of the (1,3)-β-D-glucan (BDG) detection assay in a large cohort of patients with suspected candidemia who were admitted to non-intensive care unit hospital wards. Methods This observational, retrospective cohort study was conducted in a 1,100-bed university hospital in Rome, where an infectious disease consultation team has been operational. Two groups of patients were included in the analysis: Group 1, patients with Candida bloodstream infection (BSI) who had at least one BDG test performed ±48 hours from the first positive blood culture (Candida BSI Group) and Group 2, patients with risk factors for candidemia who had at least one BDG test but had negative blood cultures (Control Group). Both Group 1 and Group 2 did not receive prior antifungal therapy. Different BDG cutoff values were considered: 80, 200, 300, 400, and ≥500 pg/mL. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and area under the receiver operating characteristic curve were calculated. Results A total of 1,296 patients were studied. Of them, 100 patients (candidemic) were in Group 1 and the remaining 1,196 patients (controls) were in Group 2. There were no differences in demographic characteristics between patients of the two groups. According to the above cutoff values, sensitivity (%) and specificity (%) of the BDG assay ranged from 91 to 60.7 and 87.7 to 97.8, respectively, whereas the PPV (%) and NPV (%) ranged from 38.2 to 68.3 and 99.1 to 97.0, respectively. Conclusion Serum BDG has a very high NPV in a population witĥ10% prevalence of candidemia. This NPV may support decisions to discontinue antifungal therapy in those patients who were empirically treated because of the suspect of candidemia.
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Affiliation(s)
- Rita Murri
- Institute of Infectious Diseases, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy,
| | - Marta Camici
- Institute of Infectious Diseases, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy,
| | - Brunella Posteraro
- Institute of Medical Pathology and Semeiotics, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Francesca Giovannenze
- Institute of Infectious Diseases, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy,
| | - Francesco Taccari
- Institute of Infectious Diseases, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy,
| | - Giulio Ventura
- Institute of Infectious Diseases, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy,
| | - Giancarlo Scoppettuolo
- Institute of Infectious Diseases, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy,
| | - Maurizio Sanguinetti
- Institute of Microbiology, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Roberto Cauda
- Institute of Infectious Diseases, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy,
| | - Massimo Fantoni
- Institute of Infectious Diseases, Fondazione Policlinico Universitario A. Gemelli IRCCS, Università Cattolica del Sacro Cuore, Rome, Italy,
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Alves J, Palma P, Azevedo D, Rello J. Candidemia in the patient with malignancy. Hosp Pract (1995) 2018; 46:246-252. [PMID: 30079788 DOI: 10.1080/21548331.2018.1508290] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 08/02/2018] [Indexed: 06/08/2023]
Abstract
Invasive fungal infections are a common life-threatening disease and a major cause of morbidity, particularly in patients with malignancies, and Candida spp. is the most common isolated fungi in bloodstream. Candidemia is the focus of this review, which covers an approach to diagnosis and treatment, with an emphasis on patients with malignancies. Acute leukemia, lymphoma, or myelodysplastic syndrome are the most common hematological malignancies associated with candidemia, while among solid tumors, gastrointestinal cancer has the majority of fungemia cases. Epidemiologic trends show there is a discrepancy between malignancies, where there is an important prevalence of non-albicans Candida in hematological malignancy patients. Diagnosis is challenging, and a high index of suspicion is required to select at-risk patients for early empiric therapy with the goal of reducing mortality. There is an increased effort to improve understanding of individualized approaches to the patient based on precision medicine and to improve diagnosis in the future. The basis of treatment is prompt therapy with echinocandins and target therapy based on susceptibility and minimum inhibitory concentrations (MICs).
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Affiliation(s)
- Joana Alves
- a Infectious Diseases Department , Centro Hospitalar São João , Porto , Portugal
- b Faculty of Medicine of University of Porto , Porto , Portugal
| | - Pedro Palma
- a Infectious Diseases Department , Centro Hospitalar São João , Porto , Portugal
- b Faculty of Medicine of University of Porto , Porto , Portugal
| | - Daniela Azevedo
- c Oncology Department , Centro Hospitalar Trás-os-Montes e Alto Douro , Vila Real , Portugal
| | - Jordi Rello
- d CIBER de Enfermedades Respiratorias , CIBERES , Barcelona , Spain
- e Clinical Research/Innovation in Pneumonia & Sepsis (CRIPS) , Vall d'Hebron Institut of Research (VHIR) , Barcelona , Spain
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Increased presepsin levels are associated with the severity of fungal bloodstream infections. PLoS One 2018; 13:e0206089. [PMID: 30379880 PMCID: PMC6209217 DOI: 10.1371/journal.pone.0206089] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 10/05/2018] [Indexed: 12/12/2022] Open
Abstract
Background Presepsin is a widely recognized biomarker for sepsis. However, little is known about the usefulness of presepsin in invasive fungal infection. The aim of this study was to determine the plasma levels of presepsin in fungal bloodstream infections and to investigate whether it reflects the disease severity, similar to its utility in bacterial infections. Methods We prospectively measured presepsin in plasma samples from participants with fungemia from April 2016 to December 2017. The associations of C-reactive protein, procalcitonin, and presepsin concentrations with the severity of fungemia were statistically analyzed. In vitro assay was performed by incubating Escherichia coli, Candida albicans, and lipopolysaccharide to whole blood cells collected from healthy subjects; after 3 h, the presepsin concentration was measured in the supernatant and was compared among the bacteria, fungi, and LPS groups. Results Presepsin was increased in 11 patients with fungal bloodstream infections. Serial measurement of presepsin levels demonstrated a prompt decrease in 7 patients in whom treatment was effective, but no decrease or further increase in the patients with poor improvement. Additionally, presepsin concentrations were significantly correlated with the Sequential Organ Failure Assessment score (r = 0.89, p < 0.001). In vitro assay with co-incubation of C. albicans and human whole blood cells indicated that the viable cells of C. albicans caused an increase in presepsin, as seen with E. coli. Conclusions Plasma presepsin levels increased in patients with fungal bloodstream infection, with positive association with the disease severity. Presepsin could be a useful biomarker of sepsis secondary to fungal infections.
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Bouza E, Muñoz P, Burillo A. Role of the Clinical Microbiology Laboratory in Antimicrobial Stewardship. Med Clin North Am 2018; 102:883-898. [PMID: 30126578 DOI: 10.1016/j.mcna.2018.05.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
For adequate antimicrobial stewardship, microbiology needs to move from the laboratory to become physically and verbally amenable to the caregivers of an institution. Herein, we describe the contributions of our microbiology department to the antimicrobial stewardship program of a large teaching hospital as 10 main points ranging from the selection of patients deemed likely to benefit from a fast track approach, to their clinical samples, or the rapid reporting of results via a microbiology hotline, to rapid searches for pathogens and susceptibility testing. These points should serve as guidelines for similar programs designed to decrease the unnecessary use of antimicrobials.
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Affiliation(s)
- Emilio Bouza
- Medicine Department, School of Medicine, Universidad Complutense de Madrid (UCM), Plaza Ramón y Cajal s/n, Madrid 28040, Spain; Instituto de Investigación Sanitaria Gregorio Marañón, Doctor Esquerdo, 46, Madrid 28007, Spain; Department of Clinical Microbiology and Infectious Diseases, Hospital General Universitario Gregorio Marañón, Doctor Esquerdo 46, Madrid 28007, Spain; CIBER de Enfermedades Respiratorias (CIBERES CB06/06/0058), Doctor Esquerdo 46, Madrid 28007, Spain.
| | - Patricia Muñoz
- Medicine Department, School of Medicine, Universidad Complutense de Madrid (UCM), Plaza Ramón y Cajal s/n, Madrid 28040, Spain; Instituto de Investigación Sanitaria Gregorio Marañón, Doctor Esquerdo, 46, Madrid 28007, Spain; Department of Clinical Microbiology and Infectious Diseases, Hospital General Universitario Gregorio Marañón, Doctor Esquerdo 46, Madrid 28007, Spain; CIBER de Enfermedades Respiratorias (CIBERES CB06/06/0058), Doctor Esquerdo 46, Madrid 28007, Spain
| | - Almudena Burillo
- Medicine Department, School of Medicine, Universidad Complutense de Madrid (UCM), Plaza Ramón y Cajal s/n, Madrid 28040, Spain; Instituto de Investigación Sanitaria Gregorio Marañón, Doctor Esquerdo, 46, Madrid 28007, Spain; Department of Clinical Microbiology and Infectious Diseases, Hospital General Universitario Gregorio Marañón, Doctor Esquerdo 46, Madrid 28007, Spain
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Abstract
Invasive candidiasis is an important health-care-associated fungal infection that can be caused by several Candida spp.; the most common species is Candida albicans, but the prevalence of these organisms varies considerably depending on geographical location. The spectrum of disease of invasive candidiasis ranges from minimally symptomatic candidaemia to fulminant sepsis with an associated mortality exceeding 70%. Candida spp. are common commensal organisms in the skin and gut microbiota, and disruptions in the cutaneous and gastrointestinal barriers (for example, owing to gastrointestinal perforation) promote invasive disease. A deeper understanding of specific Candida spp. virulence factors, host immune response and host susceptibility at the genetic level has led to key insights into the development of early intervention strategies and vaccine candidates. The early diagnosis of invasive candidiasis is challenging but key to the effective management, and the development of rapid molecular diagnostics could improve the ability to intervene rapidly and potentially reduce mortality. First-line drugs, including echinocandins and azoles, are effective, but the emergence of antifungal resistance, especially among Candida glabrata, is a matter of concern and underscores the need to administer antifungal medications in a judicious manner, avoiding overuse when possible. A newly described pathogen, Candida auris, is an emerging multidrug-resistant organism that poses a global threat.
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Affiliation(s)
- Peter G Pappas
- Division of Infectious Diseases, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Michail S Lionakis
- Fungal Pathogenesis Section, Laboratory of Clinical Immunology & Microbiology, National Institutes of Allergy and Infectious Diseases, NIH, Bethesda, MD, USA
| | - Maiken Cavling Arendrup
- Unit for Mycology, Statens Serum Institute, Copenhagen, Denmark
- Department of Clinical Microbiology, Rigshospitalet, Copenhagen, Denmark
- Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Luis Ostrosky-Zeichner
- Division of Infectious Diseases, University of Texas Health Science Center, Houston, TX, USA
| | - Bart Jan Kullberg
- Department of Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands
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30
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Candida albicans - Biology, molecular characterization, pathogenicity, and advances in diagnosis and control – An update. Microb Pathog 2018; 117:128-138. [DOI: 10.1016/j.micpath.2018.02.028] [Citation(s) in RCA: 141] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 02/04/2018] [Accepted: 02/13/2018] [Indexed: 12/16/2022]
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31
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Clancy CJ, Nguyen MH. Non-Culture Diagnostics for Invasive Candidiasis: Promise and Unintended Consequences. J Fungi (Basel) 2018; 4:jof4010027. [PMID: 29463043 PMCID: PMC5872330 DOI: 10.3390/jof4010027] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 02/15/2018] [Accepted: 02/18/2018] [Indexed: 01/14/2023] Open
Abstract
Blood cultures are positive for Candida species in < 50% and < 20% of hematogenously disseminated and intra-abdominal candidiasis, respectively. Non-culture tests such as mannan, anti-mannan antibody, Candida albicans germ tube antibody (CAGTA), 1,3-β-d-glucan (BDG), the T2Candida nanodiagnostic panel, and polymerase chain reaction (PCR) are available for clinical use, but their roles in patient care are uncertain. Sensitivity/specificity of combined mannan/anti-mannan, BDG, T2Candida and PCR for candidemia are ~80%/80%, ~80%/80%, ~90%/98%, and ~90%/90%, respectively. Limited data for intra-abdominal candidiasis suggest CAGTA, BDG sensitivity/specificity of ~65%/75% and PCR sensitivity of ~85–90%. PCR specificity has varied widely for intra-abdominal candidiasis (33–97%), and T2Candida data are lacking. Tests will be useful if restricted to cases in which positive and negative predictive values (PPVs, NPVs) differ in a clinically meaningful way from the pre-test likelihood of invasive candidiasis. In some patients, PPVs are sufficient to justify antifungal treatment, even if blood cultures are negative. In most patients, NPVs of each test are excellent, which may support decisions to withhold antifungal therapy. If test results are not interpreted judiciously, non-culture diagnostics may have unintended consequences for stewardship and infection prevention programs. In particular, discrepant non-culture test-positive/culture-negative results may promote inappropriate antifungal treatment of patients who are unlikely to have candidiasis, and lead to spurious reporting of hospital-acquired infections. In conclusion, non-culture Candida diagnostics have potential to advance patient care, but this promise will be realized only if users understand tests’ strengths and limitations, and plan proactively for how best to employ them at their hospitals.
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Affiliation(s)
- Cornelius J Clancy
- Division of Infectious Diseases, University of Pittsburgh, Scaife Hall 867, 3550 Terrace St., Pittsburgh, PA 15261, USA.
| | - M Hong Nguyen
- Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15261, USA.
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32
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Stover KR, Kenney RM, King ST, Gross AE. Evaluation of the Use of Novel Biomarkers to Augment Antimicrobial Stewardship Program Activities. Pharmacotherapy 2018; 38:271-283. [PMID: 29245184 DOI: 10.1002/phar.2069] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
As antimicrobial stewardship increasingly receives worldwide attention for improving patient care by optimizing antimicrobial therapy, programs are evaluating new tools that may augment antimicrobial stewardship activities. Biomarkers are objective, accurate, and reproducible measures that provide information about medical conditions. A systematic literature search using PubMed/MEDLINE databases was performed to evaluate the use of novel biomarkers as additions to the antimicrobial stewardship armamentarium. Procalcitonin may help clinicians discriminate between bacterial and viral infections, help with antimicrobial discontinuation decisions, and predict mortality. β-d-glucan, Candida albicans germ tube antibody, and galactomannan are useful in suspected fungal infections and may reduce inappropriate antifungal use. Adrenomedullin and soluble triggering receptor on myeloid cells-1 may be useful for mortality prediction and the determination of a need for empiric antibacterials. Although studies evaluating these biomarkers are promising, these biomarkers are not without limitations and should be used in combination with clinical signs, symptoms, or other biomarkers. For successful implementation of biomarker use, stewardship programs should consider the populations most likely to benefit, without using them indiscriminately in all patients. Antimicrobial stewardship programs should facilitate education of clinicians through institutional guidelines to ensure the appropriate use and interpretation of these biomarkers.
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Affiliation(s)
- Kayla R Stover
- Department of Pharmacy Practice, University of Mississippi School of Pharmacy, Jackson, Mississippi.,Department of Medicine-Infectious Diseases, University of Mississippi Medical Center, Jackson, Mississippi
| | - Rachel M Kenney
- Department of Pharmacy, Henry Ford Hospital, Detroit, Michigan
| | - Samuel Travis King
- Department of Pharmacy Practice, University of Mississippi School of Pharmacy, Jackson, Mississippi.,Department of Medicine-Infectious Diseases, University of Mississippi Medical Center, Jackson, Mississippi
| | - Alan E Gross
- Department of Pharmacy Practice, University of Illinois at Chicago College of Pharmacy, Chicago, Illinois.,Department of Pharmacy, University of Illinois Hospital and Health Sciences System, Chicago, Illinois
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Bassetti M, Righi E, Montravers P, Cornely OA. What has changed in the treatment of invasive candidiasis? A look at the past 10 years and ahead. J Antimicrob Chemother 2018; 73:i14-i25. [PMID: 29304208 PMCID: PMC5890781 DOI: 10.1093/jac/dkx445] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The treatment of invasive candidiasis has changed greatly in the past decade and must continue to evolve if we are to improve outcomes in this serious infection. A review of recent history may provide insights for the future. The morbidity and mortality of invasive candidiasis remain difficult to measure despite an obvious clinical burden. Current treatment guidelines now recommend echinocandins as first-line empirical treatment, with fluconazole as an acceptable alternative for selected patients, reflecting the efficacy demonstrated by echinocandins and increasing resistance observed with fluconazole. The selection of antifungal therapy now must consider not only resistance but also the shift in predominance from Candida albicans to non-albicans species, notably Candida glabrata. The recent emergence of Candida auris has been met with great interest, although the longer-term implications of this phenomenon remain unclear. The broad goal of treatment continues to be administration of safe, efficacious antifungal therapy as soon as possible. Diagnostic methods beyond traditional blood culture present an opportunity to shorten the time to an accurate diagnosis, and earlier treatment initiation based on prophylactic and empirical or pre-emptive strategies seeks to ensure timely therapeutic intervention. In addition, there are novel agents in the antifungal pipeline. These developments, as well as ongoing studies of dosing, toxicity and resistance development, are important items on the current research agenda and may play a role in future changes to the treatment of invasive candidiasis.
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Affiliation(s)
- Matteo Bassetti
- Infectious Diseases Clinic, Department of Medicine University of Udine and Azienda Sanitaria Universitaria Integrata, Presidio Ospedaliero Universitario Santa Maria della Misericordia, Udine, Italy
| | - Elda Righi
- Infectious Diseases Clinic, Department of Medicine University of Udine and Azienda Sanitaria Universitaria Integrata, Presidio Ospedaliero Universitario Santa Maria della Misericordia, Udine, Italy
| | - Philippe Montravers
- Paris Diderot Sorbonne Cite University, and Anesthesiology and Critical Care Medicine, Bichat-Claude Bernard University Hospital, HUPNSV, AP-HP, INSERM UMR 1152, Paris, France
| | - Oliver A Cornely
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), Department I of Internal Medicine, Clinical Trials Centre Cologne (ZKS Köln), University of Cologne, Cologne, Germany
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Giacobbe DR, Del Bono V, Viscoli C, Mikulska M. Use of 1,3-β-D-glucan in invasive fungal diseases in hematology patients. Expert Rev Anti Infect Ther 2017; 15:1101-1112. [PMID: 29125373 DOI: 10.1080/14787210.2017.1401467] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
INTRODUCTION Invasive fungal diseases (IFD) remain a leading cause of morbidity and mortality in hematology patients. Within a diagnostic-driven approach, the use of the serum (1,3)-ß-D-glucan (BDG) test represents a valid tool for the early diagnosis and treatment of IFD. Areas covered: The available literature on the use of BDG in hematology patients was systematically retrieved. Then, it was reviewed and discussed, to identify key issues pertaining to a clinically-oriented narrative presentation of the topic. Expert commentary: The use of BDG in hematology patients at risk for invasive aspergillosis (IA) is secondary to the use of galactomannan. However, since BDG is not specific for IA, it offers an advantage of diagnosing also other IFD, such as candidiasis and pneumocystosis. The limitations of BDG include high costs and lower sensitivity in hematology patients compared to other cohorts. The risk of false positive results is possibly lower in real life than in theory, since glucan-free equipment is available and modern dialysis membranes and blood products usually do not release BDG. Thus, in experienced hands and selected clinical situations, BDG is a useful diagnostic tool, particularly due to short turnover time to results and versatility in diagnosing different IFD.
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Affiliation(s)
- Daniele Roberto Giacobbe
- a Infectious Diseases Unit, Ospedale Policlinico San Martino, IRCCS per l'Oncologia, University of Genoa, DISSAL , Genoa , Italy
| | - Valerio Del Bono
- a Infectious Diseases Unit, Ospedale Policlinico San Martino, IRCCS per l'Oncologia, University of Genoa, DISSAL , Genoa , Italy
| | - Claudio Viscoli
- a Infectious Diseases Unit, Ospedale Policlinico San Martino, IRCCS per l'Oncologia, University of Genoa, DISSAL , Genoa , Italy
| | - Malgorzata Mikulska
- a Infectious Diseases Unit, Ospedale Policlinico San Martino, IRCCS per l'Oncologia, University of Genoa, DISSAL , Genoa , Italy
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Rouzé A, Loridant S, Poissy J, Dervaux B, Sendid B, Cornu M, Nseir S. Biomarker-based strategy for early discontinuation of empirical antifungal treatment in critically ill patients: a randomized controlled trial. Intensive Care Med 2017; 43:1668-1677. [PMID: 28936678 DOI: 10.1007/s00134-017-4932-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 09/04/2017] [Indexed: 12/18/2022]
Abstract
PURPOSE The aim of this study was to determine the impact of a biomarker-based strategy on early discontinuation of empirical antifungal treatment. METHODS Prospective randomized controlled single-center unblinded study, performed in a mixed ICU. A total of 110 patients were randomly assigned to a strategy in which empirical antifungal treatment duration was determined by (1,3)-β-D-glucan, mannan, and anti-mannan serum assays, performed on day 0 and day 4; or to a routine care strategy, based on international guidelines, which recommend 14 days of treatment. In the biomarker group, early stop recommendation was determined using an algorithm based on the results of biomarkers. The primary outcome was the percentage of survivors discontinuing empirical antifungal treatment early, defined as a discontinuation strictly before day 7. RESULTS A total of 109 patients were analyzed (one patient withdraw consent). Empirical antifungal treatment was discontinued early in 29 out of 54 patients in the biomarker strategy group, compared with one patient out of 55 in the routine strategy group [54% vs 2%, p < 0.001, OR (95% CI) 62.6 (8.1-486)]. Total duration of antifungal treatment was significantly shorter in the biomarker strategy compared with routine strategy [median (IQR) 6 (4-13) vs 13 (12-14) days, p < 0.0001). No significant difference was found in the percentage of patients with subsequent proven invasive Candida infection, mechanical ventilation-free days, length of ICU stay, cost, and ICU mortality between the two study groups. CONCLUSIONS The use of a biomarker-based strategy increased the percentage of early discontinuation of empirical antifungal treatment among critically ill patients with suspected invasive Candida infection. These results confirm previous findings suggesting that early discontinuation of empirical antifungal treatment had no negative impact on outcome. However, further studies are needed to confirm the safety of this strategy. This trial was registered at ClinicalTrials.gov, NCT02154178.
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Affiliation(s)
- Anahita Rouzé
- U995-LIRIC-Lille Inflammation Research International Center, Univ. Lille, 59000, Lille, France
- U995, Inserm, 59000, Lille, France
- Critical Care Center, CHU Lille, 59000, Lille, France
| | - Séverine Loridant
- U995-LIRIC-Lille Inflammation Research International Center, Univ. Lille, 59000, Lille, France
- U995, Inserm, 59000, Lille, France
- Laboratory of Mycology and Parasitology, CHU Lille, 59000, Lille, France
| | - Julien Poissy
- U995-LIRIC-Lille Inflammation Research International Center, Univ. Lille, 59000, Lille, France
- U995, Inserm, 59000, Lille, France
- Critical Care Center, CHU Lille, 59000, Lille, France
| | - Benoit Dervaux
- UMR 8179, CNRS, 59000, Lille, France
- Public Health and Epidemiology Department, CHU Lille, 59000, Lille, France
| | - Boualem Sendid
- U995-LIRIC-Lille Inflammation Research International Center, Univ. Lille, 59000, Lille, France
- U995, Inserm, 59000, Lille, France
- Laboratory of Mycology and Parasitology, CHU Lille, 59000, Lille, France
| | - Marjorie Cornu
- U995-LIRIC-Lille Inflammation Research International Center, Univ. Lille, 59000, Lille, France
- U995, Inserm, 59000, Lille, France
- Laboratory of Mycology and Parasitology, CHU Lille, 59000, Lille, France
| | - Saad Nseir
- U995-LIRIC-Lille Inflammation Research International Center, Univ. Lille, 59000, Lille, France.
- U995, Inserm, 59000, Lille, France.
- Critical Care Center, CHU Lille, 59000, Lille, France.
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Agrawal S, Barnes R, Brüggemann RJ, Rautemaa-Richardson R, Warris A. The role of the multidisciplinary team in antifungal stewardship. J Antimicrob Chemother 2017; 71:ii37-ii42. [PMID: 27880668 DOI: 10.1093/jac/dkw395] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
There are a variety of challenges faced in the management of invasive fungal diseases (IFD), including high case-fatality rates, high cost of antifungal drugs and development of antifungal resistance. The diagnostic challenges and poor outcomes associated with IFD have resulted in excessive empirical use of antifungals in various hospital settings, exposing many patients without IFD to potential drug toxicities as well as causing spiralling antifungal drug costs. Further complexity arises as different patient groups show marked variation in their risk for IFD, fungal epidemiology, sensitivity and specificity of diagnostic tests and the pharmacokinetics and pharmacodynamics of antifungal drugs. To address these issues and to ensure optimal management of IFD, specialist knowledge and experience from a range of backgrounds is required, which extends beyond the remit of most antibiotic stewardship programmes. The first step in the development of any antifungal stewardship (AFS) programme is to build a multidisciplinary team encompassing the necessary expertise in the management of IFD to develop and implement the AFS programme. The specific roles of the key individuals within the AFS team and the importance of collaboration are discussed in this article.
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Affiliation(s)
- Samir Agrawal
- Division of Haemato-Oncology, St Bartholomew's Hospital and Blizard Institute, Queen Mary University, London, UK
| | - Rosemary Barnes
- Department of Medical Microbiology and Infectious Diseases, Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK
| | - Roger J Brüggemann
- Department of Pharmacy and Radboud Institute for Health Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Riina Rautemaa-Richardson
- Manchester Academic Health Science Centre, Institute of Inflammation and Repair, University of Manchester, Manchester, UK.,University Hospital of South Manchester, Wythenshawe Hospital, Manchester, UK
| | - Adilia Warris
- Aberdeen Fungal Group, MRC Centre for Medical Mycology, Institute of Medical Sciences, University of Aberdeen, Aberdeen, UK
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Denning DW, Perlin DS, Muldoon EG, Colombo AL, Chakrabarti A, Richardson MD, Sorrell TC. Delivering on Antimicrobial Resistance Agenda Not Possible without Improving Fungal Diagnostic Capabilities. Emerg Infect Dis 2017; 23:177-183. [PMID: 27997332 PMCID: PMC5324810 DOI: 10.3201/eid2302.152042] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Antimicrobial resistance, a major public health concern, largely arises from excess use of antibiotic and antifungal drugs. Lack of routine diagnostic testing for fungal diseases exacerbates the problem of antimicrobial drug empiricism, both antibiotic and antifungal. In support of this contention, we cite 4 common clinical situations that illustrate this problem: 1) inaccurate diagnosis of fungal sepsis in hospitals and intensive care units, resulting in inappropriate use of broad-spectrum antibacterial drugs in patients with invasive candidiasis; 2) failure to diagnose chronic pulmonary aspergillosis in patients with smear-negative pulmonary tuberculosis; 3) misdiagnosis of fungal asthma, resulting in unnecessary treatment with antibacterial drugs instead of antifungal drugs and missed diagnoses of life-threatening invasive aspergillosis in patients with chronic obstructive pulmonary disease; and 4) overtreatment and undertreatment of Pneumocystis pneumonia in HIV-positive patients. All communities should have access to nonculture fungal diagnostics, which can substantially benefit clinical outcome, antimicrobial stewardship, and control of antimicrobial resistance.
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Bretonnière C, Lakhal K, Lepoivre T, Boutoille D, Morio F. What is the role of empirical treatment for suspected invasive candidiasis in non-neutropenic non transplanted patients in the intensive care unit?-Empiricus strikes back! J Thorac Dis 2016; 8:E1719-E1722. [PMID: 28149623 DOI: 10.21037/jtd.2016.12.99] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Cédric Bretonnière
- CHU Nantes, PHU3, Medical Intensive Care Unit, place A. Ricordeau, Nantes, F-44093, France; ; Nantes University, UPRES EA 3826, Laboratory of clinical and experimental therapeutics of infections, IRS2-Nantes Biotech, F-44200, France
| | - Karim Lakhal
- CHU Nantes, PHU3, General Surgical Intensive Care Unit, Anesthesiology Department, Laënnec Hospital, place A. Ricordeau, Nantes, F-44093, France
| | - Thierry Lepoivre
- CHU Nantes, PHU3, Cardiac Surgery Intensive Care Unit, Anesthesiology Department, Laënnec Hospital, place A. Ricordeau, Nantes, F-44093, France
| | - David Boutoille
- Nantes University, UPRES EA 3826, Laboratory of clinical and experimental therapeutics of infections, IRS2-Nantes Biotech, F-44200, France; ; CHU Nantes, PHU3, Infectious Diseases, place A. Ricordeau, Nantes, F-44093, France
| | - Florent Morio
- CHU Nantes, PHU7, Laboratory of Parasitology and Medical Mycologie, Nantes, F-44093, France; ; Parasitology and Medical Mycology Department, Nantes University, Nantes Atlantique University, EA1155-IICiMed, IRS2-Nantes Biotech, Nantes, F-44200, France
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Muñoz P, Bouza E. The current treatment landscape: the need for antifungal stewardship programmes. J Antimicrob Chemother 2016; 71:ii5-ii12. [DOI: 10.1093/jac/dkw391] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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40
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Lagunes L, Rey-Pérez A, Martín-Gómez MT, Vena A, de Egea V, Muñoz P, Bouza E, Díaz-Martín A, Palacios-García I, Garnacho-Montero J, Campins M, Bassetti M, Rello J. Association between source control and mortality in 258 patients with intra-abdominal candidiasis: a retrospective multi-centric analysis comparing intensive care versus surgical wards in Spain. Eur J Clin Microbiol Infect Dis 2016; 36:95-104. [PMID: 27649699 DOI: 10.1007/s10096-016-2775-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Accepted: 08/29/2016] [Indexed: 10/21/2022]
Abstract
Early empiric therapy and adequate resuscitation have been identified as main predictors of outcome in patients with candidemia or bacteremia. Moreover, source control is a major determinant in infectious sites when feasible, as a main technique to reduce microbiological burden. A retrospective, multicenter, cohort study was performed at surgical wards and intensive care units (ICU) of three University Hospitals in Spain between 2010 and 2014, with the aim of improving understanding of the interaction between source control, early antifungal therapy, and use of vasoactives in patients with intra-abdominal candidiasis (IAC). Source control was defined as all physical actions taken to control a focus of infection and reduce the favorable conditions that promote microorganism growth or that maintain the impairment of host defenses. Two hundred and fifty-eight patients with IAC were identified. Sixty-one patients were at ICU for diagnosis. Mortality was higher in the ICU group compared to what was documented for the non-ICU group (35 % vs 19.5 %, p = 0011). Adequate source control within 48 h of diagnosis was achieved in 60 % of the cohort. In multivariate analysis, inadequate source control was identified as the only common risk factor for 30-day mortality in both groups (ICU group OR: 13.78 (95% CI: 2.60-72.9, p = 0.002) and non-ICU group OR: 6.53 (95% CI: 2.56-16.61, p = <0.001). The population receiving both adequate source control and adequate antifungal treatment was the one associated with a higher survival rate, in both the ICU and surgical groups. Source control remains a key element in IAC, inside and outside the intensive care unit. Early antifungal treatment among ICU patients was associated with lower mortality.
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Affiliation(s)
- L Lagunes
- Critical Care Department, Vall d'Hebron University Hospital, Ps Vall d'Hebron 119-129, 08035, Barcelona, Spain. .,Medicine Department, Universitat Autónoma de Barcelona, (UAB), Barcelona, Spain.
| | - A Rey-Pérez
- Neurocritical and Burns Intensive Care Department, Vall d'Hebron University Hospital, Barcelona, Spain
| | - M T Martín-Gómez
- Microbiology Department, Vall d'Hebron University Hospital, Barcelona, Spain
| | - A Vena
- Microbiology and Infectious Diseases Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - V de Egea
- Microbiology and Infectious Diseases Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - P Muñoz
- Microbiology and Infectious Diseases Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain.,Department of Medicine, Universidad Complutense (UCM), Madrid, Spain.,CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III (CIBERES), Madrid, Spain
| | - E Bouza
- Microbiology and Infectious Diseases Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - A Díaz-Martín
- Critical Care Department, Virgen Rocío University Hospital, Sevilla, Spain
| | - I Palacios-García
- Critical Care Department, Virgen Rocío University Hospital, Sevilla, Spain
| | - J Garnacho-Montero
- Critical Care Department, Virgen Rocío University Hospital, Sevilla, Spain
| | - M Campins
- Preventive Medicine and Epidemiology Department, Vall d'Hebron University Hospital, Barcelona, Spain
| | - M Bassetti
- IAC Study Coordinator, Infectious Diseases Division, Santa Maria Misericordia University Hospital, Udine, Italy
| | - J Rello
- Medicine Department, Universitat Autónoma de Barcelona, (UAB), Barcelona, Spain.,CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III (CIBERES), Madrid, Spain
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Lagunes L, Borgatta B, Martín-Gomez MT, Rey-Pérez A, Antonelli M, Righi E, Merelli M, Brugnaro P, Dimopoulos G, Garnacho-Montero J, Colombo AL, Luzzati R, Menichetti F, Muñoz P, Nucci M, Scotton G, Viscoli C, Tumbarello M, Bassetti M, Rello J. Predictors of choice of initial antifungal treatment in intraabdominal candidiasis. Clin Microbiol Infect 2016; 22:719-24. [PMID: 27432766 DOI: 10.1016/j.cmi.2016.06.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2016] [Revised: 06/08/2016] [Accepted: 06/11/2016] [Indexed: 12/29/2022]
Abstract
Intraabdominal candidiasis (IAC) is the second most frequent form of invasive candidiasis, and is associated with high mortality rates. This study aims to identify current practices in initial antifungal treatment (IAT) in a real-world scenario and to define the predictors of the choice of echinocandins or azoles in IAC episodes. Secondary analysis was performed of a multinational retrospective cohort at 13 teaching hospitals in four countries (Italy, Greece, Spain and Brazil), over a 3-year period (2011-2013). IAC was identified in 481 patients, 323 of whom received antifungal therapy (classified as the treatment group). After excluding 13 patients given amphotericin B, the treatment group was further divided into the echinocandin group (209 patients; 64.7%) and the azole group (101 patients; 32.3%). Median APACHE II scores were significantly higher in the echinocandin group (p 0.013), but IAT did not differ significantly with regard to the Candida species involved. Logistic multivariate stepwise regression analysis, adjusted for centre effect, identified septic shock (adjusted OR (aOR) 1.54), APACHE II >15 (aOR 1.16) and presence in surgical ward at diagnosis (aOR 1.16) as the top three independent variables associated with an empirical echinocandin regimen. No differences in 30-day mortality were observed between groups. Echinocandin regimen was the first choice for IAT in patients with IAC. No statistical differences in mortality were observed between regimens, but echinocandins were administered to patients with more severe disease. Some disagreements were identified between current clinical guidelines and prescription of antifungals for IAC at the bedside, so further educational measures are required to optimize therapies.
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Affiliation(s)
- L Lagunes
- Critical Care Department, Vall d'Hebron University Hospital, Barcelona, Spain; Medicine Department, Universitat Autónoma de Barcelona, Spain.
| | - B Borgatta
- Critical Care Department, Vall d'Hebron University Hospital, Barcelona, Spain
| | - M T Martín-Gomez
- Microbiology Department, Vall d'Hebron University Hospital, Barcelona, Spain
| | - A Rey-Pérez
- Critical Care Department, Vall d'Hebron University Hospital, Barcelona, Spain
| | - M Antonelli
- Department of Anesthesiology and Intensive Care Medicine, Catholic University of Rome, A. Gemelli Hospital, Rome, Italy
| | - E Righi
- IAC Study Coordinator, Santa Maria Misericordia University Hospital, Infectious Diseases Division, Udine, Italy
| | - M Merelli
- IAC Study Coordinator, Santa Maria Misericordia University Hospital, Infectious Diseases Division, Udine, Italy
| | - P Brugnaro
- Venezia Hospital, Infectious Diseases Division, Venice, Italy
| | - G Dimopoulos
- Attikon University Hospital, Critical Care Department, Athens, Greece
| | - J Garnacho-Montero
- Unidad Clínica de Cuidados Intensivos, Hospital Universitario Virgen Macarena Instituto de Biomedicina de Sevilla, Seville, Spain
| | - A L Colombo
- Escola Paulista de Medicina UNIFESP, Sao Paulo, Brazil
| | - R Luzzati
- University Hospital of Trieste, Trieste, Italy
| | - F Menichetti
- Azienda Ospedaliera Universitaria Pisana, Pisa, Italy
| | - P Muñoz
- CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III, Madrid, Spain; Microbiology and Infectious Diseases Department, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Department of Medicine, Universidad Complutense, Madrid, Spain
| | - M Nucci
- University Hospital, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - C Viscoli
- Azienda Ospedaliera Universitaria, Genoa, Italy
| | - M Tumbarello
- Sacro Cuore Catholic University Hospital, Rome, Italy
| | - M Bassetti
- IAC Study Coordinator, Santa Maria Misericordia University Hospital, Infectious Diseases Division, Udine, Italy
| | - J Rello
- Medicine Department, Universitat Autónoma de Barcelona, Spain; University Hospital of Trieste, Trieste, Italy
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Maseda E, Rodríguez AH, Aguilar G, Pemán J, Zaragoza R, Ferrer R, Llinares P, Grau S. EPICO 3.0. Recommendations on invasive candidiasis in patients with complicated intra-abdominal infection and surgical patients with ICU extended stay. Rev Iberoam Micol 2016; 33:196-205. [PMID: 27422492 DOI: 10.1016/j.riam.2016.02.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 02/12/2016] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Although in the last decade the management of invasive fungal infections has improved, a number of controversies persist regarding the management of complicated intra-abdominal infection and surgical extended length-of-stay (LOS) patients in intensive care unit (ICU). AIMS To identify the essential clinical knowledge and elaborate a set of recommendations, with a high level of consensus, necessary for the management of postsurgical patients with complicated intra-abdominal infection and surgical patients with ICU extended stay. METHODS A Spanish prospective questionnaire, which measures consensus through the Delphi technique, was anonymously answered and e-mailed by 30 multidisciplinary national experts, all of them specialists in fungal invasive infections from six scientific national societies; these experts were intensivists, anesthesiologists, microbiologists, pharmacologists and specialists in infectious diseases. They answered 11 questions drafted by the coordination group after conducting a thorough review of the literature published in the last few years. For a category to be selected, the level of agreement among the experts in each should be equal to or greater than 70%. In a second round, 73 specialists attended a face-to-face meeting which was held after extracting recommendations from the chosen topics and in which they validated the pre-selected recommendations and derived algorithm. RESULTS After the second Delphi round, the following 11 recommendations with high degree of consensus were validated. For "surgical patients" seven recommendations were validated: (1) risk factors for invasive candidiasis (IC), (2) usefulness of blood culture and direct examination of abdominal fluid to start empirical treatment; (3) PCR for treatment discontinuation; (4) start antifungal treatment in patients with anastomotic leaks; (5) usefulness of Candida score (CS) but not (6) the Dupont score for initiating antifungal therapy in the event of anastomotic leakage or tertiary peritonitis, and (7) the administration of echinocandins as first line treatment in this special population. For "surgical ICU extended LOS patients" four recommendations were validated: (1) risk factors for IC, (2) presence of multi-colonization by Candida as a required variable of the CS, (3) starting antifungal treatment with CS≥4, and (4) to perform non-culture-based microbiological techniques in stable septic patients without evident focus. CONCLUSIONS The diagnosis and management of IC in ICU surgical patients requires the application of a broad range of knowledge and skills that we summarize in our recommendations. These recommendations, based on the DELPHI methodology, may help to identify potential patients, standardize their global management and improve their outcomes.
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Affiliation(s)
- Emilio Maseda
- Servicio de Anestesiología, Hospital Universitario La Paz, Madrid, Spain.
| | - Alejandro H Rodríguez
- Servicio de Medicina Intensiva, Hospital Universitario de Tarragona Joan XXIII/URV/IISPV/CIBERES, Spain
| | - Gerardo Aguilar
- Servicio de Anestesia y Reanimación, Hospital Clínico Universitario de Valencia, Spain
| | - Javier Pemán
- Servicio de Microbiología, Hospital Universitario La Fe de Valencia, Spain
| | - Rafael Zaragoza
- Servicio de Medicina Intensiva, Hospital Universitario Vall D'Hebron, Spain
| | - Ricard Ferrer
- Servicio de Medicina Intensiva, Hospital Universitario Mútua de Terrassa, Spain
| | - Pedro Llinares
- Unidad de Enfermedades Infecciosas, Complejo Hospitalario Universitario A Coruña, Spain
| | - Santiago Grau
- Servicio de Farmacia, Hospital del Mar, Barcelona, Spain
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Nucci M, Nouér SA, Esteves P, Guimarães T, Breda G, de Miranda BG, Queiroz-Telles F, Colombo AL. Discontinuation of empirical antifungal therapy in ICU patients using 1,3-β-d-glucan. J Antimicrob Chemother 2016; 71:2628-33. [DOI: 10.1093/jac/dkw188] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Accepted: 04/25/2016] [Indexed: 01/09/2023] Open
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León C, Ruiz-Santana S, Saavedra P, Castro C, Loza A, Zakariya I, Úbeda A, Parra M, Macías D, Tomás JI, Rezusta A, Rodríguez A, Gómez F, Martín-Mazuelos E. Contribution of Candida biomarkers and DNA detection for the diagnosis of invasive candidiasis in ICU patients with severe abdominal conditions. Crit Care 2016; 20:149. [PMID: 27181045 PMCID: PMC4867537 DOI: 10.1186/s13054-016-1324-3] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 04/26/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND To assess the performance of Candida albicans germ tube antibody (CAGTA), (1 → 3)-ß-D-glucan (BDG), mannan antigen (mannan-Ag), anti-mannan antibodies (mannan-Ab), and Candida DNA for diagnosing invasive candidiasis (IC) in ICU patients with severe abdominal conditions (SAC). METHODS A prospective study of 233 non-neutropenic patients with SAC on ICU admission and expected stay ≥ 7 days. CAGTA (cutoff positivity ≥ 1/160), BDG (≥80, 100 and 200 pg/mL), mannan-Ag (≥60 pg/mL), mannan-Ab (≥10 UA/mL) were measured twice a week, and Candida DNA only in patients treated with systemic antifungals. IC diagnosis required positivities of two biomarkers in a single sample or positivities of any biomarker in two consecutive samples. Patients were classified as neither colonized nor infected (n = 48), Candida spp. colonization (n = 154) (low-grade, n = 130; high-grade, n = 24), and IC (n = 31) (intra-abdominal candidiasis, n = 20; candidemia, n = 11). RESULTS The combination of CAGTA and BDG positivities in a single sample or at least one of the two biomarkers positive in two consecutive samples showed 90.3 % (95 % CI 74.2-98.0) sensitivity, 42.1 % (95 % CI 35.2-98.8) specificity, and 96.6 % (95 % CI 90.5-98.8) negative predictive value. BDG positivities in two consecutive samples had 76.7 % (95 % CI 57.7-90.1) sensitivity and 57.2 % (95 % CI 49.9-64.3) specificity. Mannan-Ag, mannan-Ab, and Candida DNA individually or combined showed a low discriminating capacity. CONCLUSIONS Positive Candida albicans germ tube antibody and (1 → 3)-ß-D-glucan in a single blood sample or (1 → 3)-ß-D-glucan positivity in two consecutive blood samples allowed discriminating invasive candidiasis from Candida spp. colonization in critically ill patients with severe abdominal conditions. These findings may be helpful to tailor empirical antifungal therapy in this patient population.
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Affiliation(s)
- Cristóbal León
- Intensive Care Unit, Hospital Universitario de Valme, Universidad de Sevilla, Avenida Bellavista s/n, 41014, Sevilla, Spain.
| | - Sergio Ruiz-Santana
- Intensive Care Unit, Hospital Universitario Dr. Negrín, Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Pedro Saavedra
- Mathematics Department, Universidad de las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
| | - Carmen Castro
- Clinical Unit of Microbiology and Infectious Diseases, Hospital Universitario de Valme, Universidad de Sevilla, Sevilla, Spain
| | - Ana Loza
- Intensive Care Unit, Hospital Universitario de Valme, Universidad de Sevilla, Avenida Bellavista s/n, 41014, Sevilla, Spain
| | - Ismail Zakariya
- Clinical Unit of Microbiology and Infectious Diseases, Hospital Universitario de Valme, Universidad de Sevilla, Sevilla, Spain
| | - Alejandro Úbeda
- Intensive Care Unit, Hospital Punta de Europa, Algeciras, Cádiz, Spain
| | - Manuel Parra
- Clinical Unit of Microbiology and Infectious Diseases, Hospital Universitario de Valme, Universidad de Sevilla, Sevilla, Spain
| | - Desirée Macías
- Intensive Care Unit, Hospital Universitario de Valme, Universidad de Sevilla, Avenida Bellavista s/n, 41014, Sevilla, Spain
| | - José Ignacio Tomás
- Intensive Care Unit, Hospital Universitario Miguel Servet, Zaragoza, Spain
| | - Antonio Rezusta
- Service of Microbiology, Hospital Universitario Miguel Servet, Zaragoza, Spain
| | - Alejandro Rodríguez
- Critical Care Department, Hospital Universitari Joan XXIII, Tarragona, Spain
| | - Frederic Gómez
- Service of Microbiology, Hospital Universitari Joan XXIII, Tarragona, Spain
| | - Estrella Martín-Mazuelos
- Clinical Unit of Microbiology and Infectious Diseases, Hospital Universitario de Valme, Universidad de Sevilla, Sevilla, Spain
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Lagunes L, Rello J. Invasive candidiasis: from mycobiome to infection, therapy, and prevention. Eur J Clin Microbiol Infect Dis 2016; 35:1221-6. [PMID: 27146877 DOI: 10.1007/s10096-016-2658-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Accepted: 04/06/2016] [Indexed: 12/30/2022]
Abstract
Candida spp. are commonly found in humans, colonizing most healthy individuals. A high prevalence of invasive candidiasis has been reported in recent years. Here, we assess the relation between Candida spp. as part of the human mycobiome, the host defense mechanisms, and the pathophysiology of invasive disease in critically ill patients. Many hypotheses have been proposed to explain the different immune responses to the process where Candida goes through healthy mycobiome to colonization to invasion; the involvement of other microbiota inhabitants, changes in temperature, low nitrogen levels, and the caspase system activation have been described. Patients admitted to an intensive care unit (ICU) are at the highest risk for invasive candidiasis, mostly due to the severity of their disease, immune-suppressive states, prolonged length of stay, broad-spectrum antibiotics, septic shock, and Candida colonization. The first approach should be using predictive scores as screening, followed by the determination of biomarkers (when available), and, in the near future, probably immune-genomics and analysis of the clinical background in order to initiate prompt and correct treatment. Regarding treatment, the initiation with an echinocandin is strongly recommended in critically ill patients. In conclusion, prompt treatment and adequate source control in the more severe patients remains the ultimate goal, as well as restoration of a healthy microbiota.
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Affiliation(s)
- L Lagunes
- Critical Care Department, Vall d'Hebron University Hospital, Ps Vall d'Hebron 119-129, 08035, Barcelona, Spain.
| | - J Rello
- Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain.,CIBER de Enfermedades Respiratorias, Instituto de Salud Carlos III (CIBERES), Madrid, Spain
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Sanguinetti M, Posteraro B. Diagnostic of Fungal Infections Related to Biofilms. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2016; 931:63-82. [PMID: 27300347 DOI: 10.1007/5584_2016_9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Fungal biofilm-related infections, most notably those caused by the Candida and Aspergillus genera, need to be diagnosed accurately and rapidly to avoid often unfavorable outcomes. Despite diagnosis of these infections is still based on the traditional histopathology and culture, the use of newer, rapid methods has enormously enhanced the diagnostic capability of a modern clinical mycology laboratory. Thus, while accurate species-level identification of fungal isolates can be achieved with turnaround times considerably shortened, nucleic acid-based or antigen-based detection methods can be considered useful adjuncts for the diagnosis of invasive forms of candidiasis and aspergillosis. Furthermore, simple, reproducible, and fast methods have been developed to quantify biofilm production by fungal isolates in vitro. In this end, isolates can be categorized as low, moderate, or high biofilm-forming, and this categorization may reflect their differential response to the conventional antifungal therapy. By means of drug susceptibility testing performed on fungal biofilm-growing isolates, it is now possible to evaluate not only the activity of conventional antifungal agents, but also of novel anti-biofilm agents. Despite this, future diagnostic methods need to target specific biofilm components/molecules, in order to provide a direct proof of the presence of this growth phenotype on the site of infection. In the meantime, our knowledge of the processes underlying the adaptive drug resistance within the biofilm has put into evidence biofilm-specific molecules that could be potentially helpful as therapeutic targets. Surely, the successful management of clinically relevant fungal biofilms will rely upon the advancement and/or refinement of these approaches.
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Affiliation(s)
| | - Brunella Posteraro
- Institute of Public Health (Section of Hygiene), Università Cattolica del Sacro Cuore, Rome, Italy
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