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Van Praet JT, Huysman A, De Knijf E, De Buyser S, Snauwaert S, Van Droogenbroeck J, Lodewyck T, Schauwvlieghe A, Selleslag D, Reynders M. Epidemiological characteristics and outcome of viral respiratory tract infections in the first year after allogeneic hematopoietic cell transplantation. J Infect Dis 2024:jiae108. [PMID: 38427774 DOI: 10.1093/infdis/jiae108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 02/16/2024] [Accepted: 02/26/2024] [Indexed: 03/03/2024] Open
Abstract
Adverse outcomes of viral respiratory tract infections (RTI) have been reported in recipients of allogeneic hematopoietic cell transplantation. Using a laboratory-developed multiparameter PCR in a consecutive series of 242 patients, we found the highest incidence of viral RTI in the pre-engraftment phase. The occurrence of multiple episodes of viral RTI or viral pneumonia was significantly associated with a higher hazard of non-relapse mortality in the first year after transplantation. We observed a 90-day mortality of 19.7% after viral RTI, which was significantly different between patient groups stratified according to the ISI score.
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Affiliation(s)
- Jens T Van Praet
- Department of Nephrology and Infectious diseases, AZ Sint-Jan Brugge AV, Brugge, Belgium
- Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Andreas Huysman
- Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Eline De Knijf
- Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Stefanie De Buyser
- Biostatistics Unit, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Sylvia Snauwaert
- Department of Hematology, AZ Sint-Jan Brugge AV, Brugge, Belgium
| | | | - Tom Lodewyck
- Department of Hematology, AZ Sint-Jan Brugge AV, Brugge, Belgium
| | | | | | - Marijke Reynders
- Department of Medical Microbiology, AZ Sint-Jan Brugge AV, Brugge, Belgium
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Janssens E, Huygens S, Moors I, Delie A, Kerre T, Vande Weygaerde Y, Van Braeckel E, Boelens J, Morbée L, Schauwvlieghe A. Baseline chest computed tomography for diagnosis of invasive aspergillosis in patients with acute myeloid leukaemia treated with intensive chemotherapy: A retrospective single-centre cohort study. Mycoses 2024; 67:e13715. [PMID: 38477367 DOI: 10.1111/myc.13715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 12/11/2023] [Accepted: 03/01/2024] [Indexed: 03/14/2024]
Abstract
BACKGROUND Invasive pulmonary aspergillosis (IPA) is a relatively common infection in patients with acute myeloid leukaemia (AML), and is associated with high mortality rates. Optimising early detection is key to reduce the burden of IPA in this population. In this retrospective cohort study, we evaluated the added value of baseline chest CT before start of classical induction chemotherapy. METHODS Adult patients receiving first-line intensive chemotherapy for AML were included if a baseline chest CT scan was available (±7 days). Data were collected from the electronic health record. IPA was classified using the EORTC/MSGERC 2020 consensus definitions. RESULTS Between 2015 and 2019, 99 patients were included. During first-line treatment, 29/99 (30%) patients developed a probable IPA. Baseline chest CT was abnormal in 61/99 (62%) and 14/61 (23%) patients had typical radiological signs for IPA. An abnormal scan showed a trend towards higher risk for IPA (hazard ratio (HR): 2.12; 95% CI 0.95-4.84). Ground glass opacities were a strong predictor for developing IPA (HR 3.35: 95% CI 1.61-7.00). No probable/proven IPA was diagnosed at baseline; however, a bronchoalveolar lavage (BAL) at baseline was only performed in seven patients. Twelve-week mortality was higher in patients with IPA (7/26, 27% vs. 5/59, 8%; p = .024). CONCLUSION Baseline chest CT scan could be an asset in the early diagnosis of IPA and contribute to risk estimation for IPA. In patients with an abnormal baseline CT, performing a BAL should be considered more frequently, and not only in patients with radiological findings typical for IPA.
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Affiliation(s)
- Emilie Janssens
- Department of Hematology, Ghent University Hospital, Ghent, Belgium
| | - Sammy Huygens
- Department of Hematology, Ghent University Hospital, Ghent, Belgium
- Department of Internal Medicine, Section of Infectious Diseases and Department of Medical Microbiology and Infectious Diseases, Erasmus MC, University Medical Center, Rotterdam, The Netherlands
| | - Ine Moors
- Department of Hematology, Ghent University Hospital, Ghent, Belgium
| | - Anke Delie
- Department of Hematology, Ghent University Hospital, Ghent, Belgium
| | - Tessa Kerre
- Department of Hematology, Ghent University Hospital, Ghent, Belgium
| | | | - Eva Van Braeckel
- Department of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium
- Respiratory Infection and Defense lab (RIDL), Department of Internal Medicine and Paediatrics, Ghent University, Ghent, Belgium
| | - Jerina Boelens
- Department of Laboratory Medicine, Ghent University Hospital, Ghent, Belgium
- Department of Diagnostic Sciences, Ghent University, Ghent, Belgium
| | - Lieve Morbée
- Department of Radiology, Ghent University Hospital, Ghent, Belgium
| | - Alexander Schauwvlieghe
- Department of Hematology, Ghent University Hospital, Ghent, Belgium
- Department of Hematology, AZ Sint-Jan, Bruges, Belgium
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Buil JB, Huygens S, Dunbar A, Schauwvlieghe A, Reynders M, Langerak D, van Dijk K, Bruns A, Haas PJ, Postma DF, Biemond B, Delma FZ, de Kort E, Melchers WJG, Verweij PE, Rijnders B. Retrospective Multicenter Evaluation of the VirClia Galactomannan Antigen Assay for the Diagnosis of Pulmonary Aspergillosis with Bronchoalveolar Lavage Fluid Samples from Patients with Hematological Disease. J Clin Microbiol 2023; 61:e0004423. [PMID: 37097150 PMCID: PMC10204623 DOI: 10.1128/jcm.00044-23] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 04/04/2023] [Indexed: 04/26/2023] Open
Abstract
Galactomannan (GM) testing of bronchoalveolar lavage (BAL) fluid samples has become an essential tool to diagnose invasive pulmonary aspergillosis (IPA) and is part of diagnostic guidelines. Enzyme-linked immunosorbent assays (ELISAs) (enzyme immunoassays [EIAs]) are commonly used, but they have a long turnaround time. In this study, we evaluated the performance of an automated chemiluminescence immunoassay (CLIA) with BAL fluid samples. This was a multicenter retrospective study in the Netherlands and Belgium. BAL fluid samples were collected from patients with underlying hematological diseases with a suspected invasive fungal infection. Diagnosis of IPA was based on the 2020 European Organisation for Research and Treatment of Cancer (EORTC)/Mycoses Study Group Education and Research Consortium (MSGERC) consensus definitions. GM results were reported as optical density index (ODI) values. ODI cutoff values for positive results that were evaluated were 0.5, 0.8, and 1.0 for the EIA and 0.16, 0.18, and 0.20 for the CLIA. Probable IPA cases were compared with two control groups, one with no evidence of IPA and another with no IPA or possible IPA. Qualitative agreement was analyzed using Cohen's κ, and quantitative agreement was analyzed by Spearman's correlation. We analyzed 141 BAL fluid samples from 141 patients; 66 patients (47%) had probable IPA, and 56 cases remained probable IPA when the EIA GM result was excluded as a criterion, because they also had positive culture and/or duplicate positive PCR results. Sixty-three patients (45%) had possible IPA and 12 (8%) had no IPA. The sensitivity and specificity of the two tests were quite comparable, and the overall qualitative agreement between EIA and CLIA results was 81 to 89%. The correlation of the actual CLIA and EIA values was strong at 0.72 (95% confidence interval, 0.63 to 0.80). CLIA has similar performance, compared to the gold-standard EIA, with the benefits of faster turnaround because batching is not required. Therefore, CLIA can be used as an alternative GM assay for BAL fluid samples.
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Affiliation(s)
- Jochem B. Buil
- Department of Medical Microbiology, Radboud University Medical Center, Nijmegen, The Netherlands
- Radboud University Medical Center-Canisius Wilhelmina Hospital, Center of Expertise for Mycology, Nijmegen, The Netherlands
| | - Sammy Huygens
- Department of Internal Medicine, Section of Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Albert Dunbar
- Department of Internal Medicine, Section of Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
| | | | - Marijke Reynders
- Unit of Molecular Microbiology, Medical Microbiology, Department of Laboratory Medicine, AZ Sint-Jan Brugge AV, Bruges, Belgium
| | - Diana Langerak
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Karin van Dijk
- Department of Medical Microbiology, Amsterdam University Medical Centers, Vrije Universiteit University Medical Center, Amsterdam, The Netherlands
| | - Anke Bruns
- Department of Internal Medicine, Infectious Diseases, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Pieter-Jan Haas
- Department of Medical Microbiology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Douwe F. Postma
- Department of Internal Medicine and Infectious Diseases, University Medical Center Groningen, Groningen, The Netherlands
| | - Bart Biemond
- Department of Hematology, Amsterdam University Medical Centers, Academic Medical Center, Amsterdam, The Netherlands
| | - Fatima Zohra Delma
- Department of Medical Microbiology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Elizabeth de Kort
- Radboud University Medical Center-Canisius Wilhelmina Hospital, Center of Expertise for Mycology, Nijmegen, The Netherlands
- Department of Hematology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Willem J. G. Melchers
- Department of Medical Microbiology, Radboud University Medical Center, Nijmegen, The Netherlands
- Radboud University Medical Center-Canisius Wilhelmina Hospital, Center of Expertise for Mycology, Nijmegen, The Netherlands
| | - Paul E. Verweij
- Department of Medical Microbiology, Radboud University Medical Center, Nijmegen, The Netherlands
- Radboud University Medical Center-Canisius Wilhelmina Hospital, Center of Expertise for Mycology, Nijmegen, The Netherlands
| | - Bart Rijnders
- Department of Internal Medicine, Section of Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
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Callens R, Colman S, Delie A, Schauwvlieghe A, Lodewyck T, Selleslag D, Reynders M, Kerre T, Padalko E. Immunological monitoring after allogeneic stem cell transplantation: T-SPOT.CMV and QuantiFERON-CMV, are they the same? Transplant Cell Ther 2023:S2666-6367(23)01177-6. [PMID: 36963722 DOI: 10.1016/j.jtct.2023.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 03/14/2023] [Accepted: 03/15/2023] [Indexed: 03/26/2023]
Abstract
BACKGROUND CMV-reactivation and -disease is still a major concern after allogeneic stem cell transplantation [allo-HSCT], despite prophylactic and pre-emptive strategies. In recent years, immunologic monitoring using CMV-IGRA has gained interest to better risk stratify immunocompromised patients or to guide prophylactic therapies. CMV-IGRA can quantify CMV cell-mediated immunity by measuring the interferon-gamma that is released by CD4+ and CD8+ T-lymphocytes in the presence of CMV-antigens. However, the two most widely used CMV-IGRAs, T-SPOT.CMV and QuantiFERON-CMV, have not yet been compared in the setting of an allo-HSCT. OBJECTIVE To perform a method comparison between the T-SPOT.CMV and QuantiFERON-CMV 28 and 100 days after allo-HSCT, and to assess predictive values of both tests for CMV-reactivation. STUDY DESIGN In a bicentric prospective trial, 27 patients were included. Samples were taken on day +28 and day +100 after allo-HSCT. Patients' clinical information was collected up to 270 days after the transplant. Method comparison was performed using Cohen's kappa. RESULTS On day +28 (n=26) after allo-HSCT T-SPOT.CMV gave three positive test results, and QuantiFERON-CMV only two. On day +100 (n=24) T-SPOT.CMV gave seven positive test results, and QuantiFERON-CMV nine. One discordant result was obtained at day +28 (n=26), while six results were discordant at day +100 (n=24). Method comparison showed a strong agreement on day +28 (κ = 0.780 [95% CI: 0.366-1.000]), but only a moderate agreement on day +100 (κ = 0.442 [95% CI: 0.070-0.814]) and on pooled data from both time points (κ = 0.578 [95% CI: 0.300-0.856]). Four clinically significant CMV infections, (CS-CMVi) were observed, all occurring after discontinuation of letermovir-prophylaxis. None of those four patients had a positive result with either test at day +100 (or day +28). Negative predictive values (NPV) and sensitivity are therefore very high at 100% (for both tests, for NPV and sensitivity, measured at day +100). At day+100, positive predictive values (PPV) and specificity were considerably lower (T-SPOT.CMV: PPV 23.5% and specificity 35% - QuantiFERON-CMV: PPV 26.7% and specificity 45%). CONCLUSION T-SPOT.CMV and QuantiFERON-CMV only have a moderate agreement (at day +100) after allo-HSCT. Although these IGRAs are very promising, as shown by their very high negative predictive values for protection against CS-CMVi, they are not interchangeable. Future research should stipulate which IGRA was used, and future guidelines should preferably be assay-specific. As the QuantiFERON-CMV to date still lacks a large validation study after allo-HSCT, the moderate agreement with the T-SPOT.CMV poses a significant hurdle in the routine implementation of this test.
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Affiliation(s)
- Rutger Callens
- Department of Hematology, Ghent University Hospital, Ghent, Belgium; Department of Hematology, AZ Delta, Roeselare, Belgium
| | - Sofie Colman
- Department of Laboratory Medicine, O.L.V. van Lourdes Hospital, Waregem, Belgium
| | - Anke Delie
- Department of Hematology, Ghent University Hospital, Ghent, Belgium
| | | | - Tom Lodewyck
- Department of Hematology, AZ Sint-Jan Hospital, Bruges, Belgium
| | | | - Marijke Reynders
- Department of Laboratory Medicine, AZ Sint-Jan Hospital, Bruges, Belgium
| | - Tessa Kerre
- Department of Hematology, Ghent University Hospital, Ghent, Belgium; Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Elizaveta Padalko
- Department of Medical Microbiology, Ghent University Hospital, Ghent, Belgium; Department of Diagnostic Sciences, Ghent University, Ghent, Belgium.
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5
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Van Praet JT, Huysman A, De Knijf E, De Buyser S, Snauwaert S, Van Droogenbroeck J, Lodewyck T, Schauwvlieghe A, Selleslag D, Reynders M. Infectious diarrhea after allogeneic hematopoietic cell transplantation assessed by a multiplex polymerase chain reaction assay. Int J Infect Dis 2023; 127:17-22. [PMID: 36481487 DOI: 10.1016/j.ijid.2022.11.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 11/26/2022] [Accepted: 11/30/2022] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES To determine the incidence of infectious diarrhea after allogeneic hematopoietic cell transplantation (HCT) using a multiplex polymerase chain reaction assay and assess risk factors for developing infectious diarrhea. METHODS This was a single-center retrospective study of 140 consecutive allogeneic HCT recipients. Infectious diarrhea was assessed using a laboratory-developed multiplex polymerase chain reaction the first year after transplantation. RESULTS The incidence rate of infectious diarrhea episodes was 47 per 100 person-years, with the highest rate observed in the pre-engraftment phase. Most episodes were seen as nosocomial infections (38%) and most affected patients (82%) had only one episode of infectious diarrhea. The cumulative incidence of at least one episode of infectious diarrhea was 32% after 1 year. Nonrelapse mortality was higher in transplant recipients with at least one episode of infectious diarrhea (hazard ratio (HR) 2.02, 95% CI = 1.07-3.80). The most frequently observed pathogens were Clostridium difficile, adenovirus, Enteropathogenic Escherichia coli, and Campylobacter jejuni. Patients with acute lower gastrointestinal graft-vs-host disease stage 3 or 4 (HR 3.68, 95% CI = 1.57-8.63) conferred a higher risk for a first infectious diarrhea episode. CONCLUSION Infectious diarrhea after allogeneic HCT was seen in about one-third of the patients, mostly as nosocomial infection in the pre-engraftment phase.
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Affiliation(s)
- Jens T Van Praet
- Department of Nephrology and Infectious diseases, AZ Sint-Jan Brugge-Oostende AV, Brugge, Belgium; Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium.
| | - Andreas Huysman
- Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Eline De Knijf
- Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Stefanie De Buyser
- Biostatistics Unit, Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | - Sylvia Snauwaert
- Department of Hematology, AZ Sint-Jan Brugge-Oostende AV, Brugge, Belgium
| | | | - Tom Lodewyck
- Department of Hematology, AZ Sint-Jan Brugge-Oostende AV, Brugge, Belgium
| | | | - Dominik Selleslag
- Department of Hematology, AZ Sint-Jan Brugge-Oostende AV, Brugge, Belgium
| | - Marijke Reynders
- Department of Medical Microbiology, AZ Sint-Jan Brugge-Oostende AV, Brugge, Belgium
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De Smet MAJ, Bogaert S, Schauwvlieghe A, Dendooven A, Depuydt P, Druwé P. Case report: Hemorrhagic fever with renal syndrome presenting as hemophagocytic lymphohistiocytosis. Front Med (Lausanne) 2022; 9:1096900. [PMID: 36579154 PMCID: PMC9790895 DOI: 10.3389/fmed.2022.1096900] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 11/28/2022] [Indexed: 12/14/2022] Open
Abstract
Hemophagocytic lymphohistiocytosis may occur in patients with genetic predisposition and in sporadic cases due to malignancy or infection. We describe a 49-year old man with hemorrhagic fever, type 1 respiratory insufficiency and acute kidney injury. Diagnostic work up showed a hyperinflammatory syndrome, hypertriglyceridemia, hemophagocytosis, very high ferritin and significantly elevated sCD25. The findings were compatible with hemophagocytic lymphohistiocytosis based on the HLH-2004 criteria. Serological testing indentified Puumala virus as the causal pathogen. The patient was successfully treated with pulse corticosteroids, intravenous immunoglobins and supportive therapy.
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Affiliation(s)
- Maarten A. J. De Smet
- Department of Intensive Care Medicine, Ghent University Hospital, Ghent, Belgium,*Correspondence: Maarten A. J. De Smet,
| | - Simon Bogaert
- Department of Intensive Care Medicine, Ghent University Hospital, Ghent, Belgium
| | | | - Amélie Dendooven
- Department of Pathology, Ghent University Hospital, Ghent, Belgium
| | - Pieter Depuydt
- Department of Intensive Care Medicine, Ghent University Hospital, Ghent, Belgium
| | - Patrick Druwé
- Department of Intensive Care Medicine, Ghent University Hospital, Ghent, Belgium
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Aerts R, Bevers S, Beuselinck K, Schauwvlieghe A, Lagrou K, Maertens J. Blood Mucorales PCR to track down Aspergillus and Mucorales co-infections in at-risk hematology patients: A case-control study. Front Cell Infect Microbiol 2022; 12:1080921. [PMID: 36569194 PMCID: PMC9774025 DOI: 10.3389/fcimb.2022.1080921] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Accepted: 11/21/2022] [Indexed: 12/13/2022] Open
Abstract
Introduction Serum Mucorales PCR can precede the final diagnosis of invasive mucormycosis by several days or weeks and could therefore be useful as a non-invasive screening tool. Methods We assessed the performance of a commercial Mucorales PCR assay (MucorGenius®, PathoNostics, Maastricht, The Netherlands) on prospectively collected banked sera from hematology patients at risk for invasive mould infections. We evaluated if there is an underestimated incidence of missed Mucorales co-infections in patients with invasive aspergillosis (IA). We tested Mucorales PCR on the sera of all patients with a diagnosis of at least possible IA (EORTC-MSGERC consensus criteria) before the start of any antifungal therapy, and in a control group of similar high-risk hematology patients without IA (in a 1:4 ratio). When a positive Mucorales PCR was observed, at least 5 serum samples taken before and after the positive one were selected. Results Mucorales PCR was performed in 46 diagnostic serum samples of cases and in 184 controls. Serum Mucorales PCR was positive in 4 cases of IA (8.7%; 12.9% of probable cases) and in 1 control case (0.5%) (p=0.0061, OR=17.43 (1.90-159.96). Post-mortem cultures of the positive control became positive for Rhizopus arrhizus. Mortality of IA cases with and without a positive Mucorales PCR was not significantly different. Only in the PCR positive control case, serial serum samples before and after the diagnostic sample were also positive. Discussion It is not entirely clear what a positive Mucorales PCR in these cases implies since the 4 Mucorales PCR positive cases were treated with antifungals with activity against Mucorales. In addition, PCR was positive only once. This study does not provide enough evidence to implement Mucorales PCR screening. However, our findings emphasize once more the importance of considering the possibility of dual mould infections, even in patients with a positive galactomannan detection.
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Affiliation(s)
- Robina Aerts
- Department of Internal Medicine, University Hospitals Leuven, Leuven, Belgium,Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium,*Correspondence: Robina Aerts,
| | - Sien Bevers
- Department of Haematology, University Hospitals Leuven, Leuven, Belgium
| | - Kurt Beuselinck
- Department of Laboratory Medicine, University Hospitals Leuven, Leuven, Belgium
| | | | - Katrien Lagrou
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium,Department of Laboratory Medicine, University Hospitals Leuven, Leuven, Belgium
| | - Johan Maertens
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium,Department of Haematology, University Hospitals Leuven, Leuven, Belgium
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Huygens S, Dunbar A, Buijl J, Maertens J, Verweij P, Klaassen C, Lagrou K, Van Dijk K, Mercier T, Schauwvlieghe A, Rijnders B. P474 The value of PCR-based azole resistance detection in invasive aspergillosis: A prospective multicenter study. Med Mycol 2022. [PMCID: PMC9516266 DOI: 10.1093/mmy/myac072.p474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Poster session 1, September 21, 2022, 12:30 PM - 1:30 PM
Objectives
Prompt detection of azole-resistant Aspergillus fumigatus will result in the timely start of active treatment and may improve the survival of invasive aspergillosis (IA). The use of a multiplex polymerase chain reaction (PCR) targeting Aspergillus species and fumigatus DNA as well as the two most prevalent azole resistance- associated mutations (RAMs) in the cyp51A gen (TR34/L98H and TR46/Y121F/T289A) could shorten the time to detect azole-resistant IA.
Methods
In a prospective study in 12 Dutch and Belgian centers, we evaluated the clinical value of the multiplex AsperGenius®PCR in hematology patients with a pulmonary infiltrate undergoing bronchoalveolar lavage (BALf) sampling. The primary endpoint was antifungal treatment failure in the 6 weeks after antifungal treatment initiation in the patients in which azole-resistant IA was detected. Treatment failure was defined as death or a switch to an antifungal agent from another class after at least 5 days of first-line therapy. Patients with a mixed azole-susceptible/resistant infection were excluded from this analysis to ascertain that the infection was indeed caused by the resistant strain.
Results
Of 323 patients enrolled, sufficient BALf for PCR testing remained in 299. Probable fungal disease was diagnosed in 95 (34%), Aspergillus cultured in 24 (8%), Aspergillus DNA detected in 118 (39%), and A. fumigatus DNA in 88 (29%) patients. The resistance PCR was conclusive in 54/88 (61%) and RAMs were detected in 8 (15%), Table 1. All 8 had probable IA but 2 had a mixed infection and were excluded. In the 6 remaining patients, treatment failure was observed in one. Compared with the GM negative patients and despite antifungal therapy, a positive GM test was associated with a 13% higher 6-week overall mortality (P = .01), Table 2. Surprisingly, the 6-week mortality in the 65 patients who had a positive Aspergillus PCR but a negative GM and culture was not increased compared to those with a negative PCR (PCR + 14% vs. PCR- 16% mortality, P = .68).
Conclusions
In patients with an underlying hematological disease and a pulmonary infiltrate, the detection of Aspergillus DNA by PCR on BALf was not associated with increased mortality. The exact place of the Aspergillus PCR in the EORTC-MSGERC invasive fungal infection criteria is therefore uncertain. In 15% of the patients in whom A. fumigatus DNA was present, azole RAMs were detected by PCR. In only 1/6 probable cases of IA with RAMs detected, antifungal treatment failure was observed. Basing the choice of antifungal therapy on the result of a cyp51a resistance PCR may help to reduce the impact of azole resistance on mortality.
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Dekeyser C, Naesens L, Offner F, De Vriendt C, Schauwvlieghe A, Kerre T, Laureys G. A unique phenotype of longitudinal extensive transverse myelitis in autoimmune lymphoproliferative syndrome. J Neuroimmunol 2022; 367:577866. [DOI: 10.1016/j.jneuroim.2022.577866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 04/01/2022] [Accepted: 04/09/2022] [Indexed: 11/17/2022]
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De Bruyne S, Van Landeghem S, Schauwvlieghe A, Noens L. Life-threatening autoimmune hemolytic anemia following mRNA COVID-19 vaccination: don’t be too prudent with the red gold. Clin Chem Lab Med 2022; 60:e125-e128. [DOI: 10.1515/cclm-2022-0118] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 03/04/2022] [Indexed: 12/14/2022]
Affiliation(s)
- Sander De Bruyne
- Department of Laboratory Medicine , Ghent University Hospital , Ghent , Belgium
- Department of Transfusion Medicine , Ghent University Hospital , Ghent , Belgium
| | | | | | - Lucien Noens
- Department of Transfusion Medicine , Ghent University Hospital , Ghent , Belgium
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11
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Devos T, Van Thillo Q, Compernolle V, Najdovski T, Romano M, Dauby N, Jadot L, Leys M, Maillart E, Loof S, Seyler L, Moonen M, Moutschen M, Van Regenmortel N, Ariën KK, Barbezange C, Betrains A, Garigliany M, Engelen MM, Gyselinck I, Maes P, Schauwvlieghe A, Liesenborghs L, Belmans A, Verhamme P, Meyfroidt G. Early high antibody-titre convalescent plasma for hospitalised COVID-19 patients: DAWn-plasma. Eur Respir J 2021; 59:13993003.01724-2021. [PMID: 34446469 PMCID: PMC8576805 DOI: 10.1183/13993003.01724-2021] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 07/24/2021] [Indexed: 12/15/2022]
Abstract
Background Several randomised clinical trials have studied convalescent plasma for coronavirus disease 2019 (COVID-19) using different protocols, with different severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) neutralising antibody titres, at different time-points and severities of illness. Methods In the prospective multicentre DAWn-plasma trial, adult patients hospitalised with COVID-19 were randomised to 4 units of open-label convalescent plasma combined with standard of care (intervention group) or standard of care alone (control group). Plasma from donors with neutralising antibody titres (50% neutralisation titre (NT50)) ≥1/320 was the product of choice for the study. Results Between 2 May 2020 and 26 January 2021, 320 patients were randomised to convalescent plasma and 163 patients to the control group according to a 2:1 allocation scheme. A median (interquartile range) volume of 884 (806–906) mL) convalescent plasma was administered and 80.68% of the units came from donors with neutralising antibody titres (NT50) ≥1/320. Median time from onset of symptoms to randomisation was 7 days. The proportion of patients alive and free of mechanical ventilation on day 15 was not different between both groups (convalescent plasma 83.74% (n=267) versus control 84.05% (n=137)) (OR 0.99, 95% CI 0.59–1.66; p=0.9772). The intervention did not change the natural course of antibody titres. The number of serious or severe adverse events was similar in both study arms and transfusion-related side-effects were reported in 19 out of 320 patients in the intervention group (5.94%). Conclusions Transfusion of 4 units of convalescent plasma with high neutralising antibody titres early in hospitalised COVID-19 patients did not result in a significant improvement of clinical status or reduced mortality. Early transfusion of 4 units of high neutralising antibody titre convalescent plasma in hospitalised COVID-19 patients does not reduce mortality or the need for mechanical ventilationhttps://bit.ly/3fiRY2I
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Affiliation(s)
- Timothy Devos
- Department of Hematology, University Hospitals Leuven and Department of Microbiology and Immunology, Laboratory of Molecular Immunology (Rega Institute), KU Leuven, Leuven, Belgium
| | - Quentin Van Thillo
- Center for Cancer Biology, Vlaams Instituut voor Biotechnologie (VIB), Leuven and Center for Human Genetics, KU Leuven, Leuven, Belgium
| | - Veerle Compernolle
- Belgian Red Cross, Blood Services, Mechelen, Belgium. Faculty of Medicine and Health Sciences, Ghent University, Ghent, Belgium
| | | | - Marta Romano
- Immune Response Service; Infectious Diseases in Humans Scientific Directorate, Sciensano, Brussels, Belgium
| | - Nicolas Dauby
- Department of Infectious Diseases, CHU Saint-Pierre, Universite Libre de Bruxelles (ULB), School of Public Health, Universite Libre de Bruxelles (ULB), Institute for Medical Immunology, Universite Libre de Bruxelles (ULB), Belgium
| | - Laurent Jadot
- Department of Anesthesiology and Intensive Care Medicine, and Department of Infectious diseases, CHC Mont Legia, Liege, Belgium
| | - Mathias Leys
- Department of Pulmonary Medicine, AZ Groeninge, Kortrijk, Belgium
| | - Evelyne Maillart
- Department of Infectious Diseases, Brugmann University Hospital, Brussels, Belgium
| | - Sarah Loof
- Department of Respiratory Medicine, AZ Maria Middelares Gent, Ghent, Belgium. Department of Respiratory Medicine, AZ Sint-Vincentius Deinze, Deinze, Belgium
| | - Lucie Seyler
- Department of Infectious Diseases and Internal Medicine, UZ Brussel Hospital, Brussels, Belgium
| | - Martial Moonen
- Department of Internal Medicine and Infectious Diseases, Centre Hospitalier Regional (CHR), Liege, Belgium
| | - Michel Moutschen
- Infectious Diseases and General Internal Medicine, CHU de Liege, ULiege, Belgium
| | - Niels Van Regenmortel
- Department of Intensive Care Medicine, Ziekenhuis Netwerk Antwerpen Campus Stuivenberg, Antwerp, Belgium
| | - Kevin K Ariën
- Virology Unit, Institute of Tropical Medicine Antwerp, Antwerp and Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | | | - Albrecht Betrains
- Department of General Internal Medicine, University Hospitals Leuven, Leuven and Department of Microbiology, Immunology, and Transplantation, KU Leuven, Leuven, Belgium
| | - Mutien Garigliany
- University of Liege, Faculty of Veterinary Medicine, Animal Pathology, Liege, Belgium
| | | | - Iwein Gyselinck
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Department CHROMETA, KU Leuven, Respiratory Diseases UZ Leuven, Leuven, Belgium
| | - Piet Maes
- KU Leuven, Rega Institute for Medical Research, Clinical and Epidemiological Virology, Leuven, Belgium
| | | | - Laurens Liesenborghs
- Laboratory of Virology and Chemotherapy, Department of Microbiology, Immunology and Transplantation, Rega Institute for Medical Research, KU Leuven, Leuven, Belgium
| | - Ann Belmans
- I-BioStat, KU Leuven, Leuven, Belgium and University Hasselt, Hasselt, Belgium
| | - Peter Verhamme
- Department of Cardiovascular Sciences, UZ and KU Leuven, Belgium
| | - Geert Meyfroidt
- Department of Intensive Care Medicine, University Hospitals Leuven, and Department of Cellular and Molecular Medicine, Laboratory of Intensive Care Medicine, KU Leuven, Leuven, Belgium
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12
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Van Daele R, Bekkers B, Lindfors M, Broman LM, Schauwvlieghe A, Rijnders B, Hunfeld NGM, Juffermans NP, Taccone FS, Coimbra Sousa CA, Jacquet LM, Laterre PF, Nulens E, Grootaert V, Lyster H, Reed A, Patel B, Meersseman P, Debaveye Y, Wauters J, Vandenbriele C, Spriet I. A Large Retrospective Assessment of Voriconazole Exposure in Patients Treated with Extracorporeal Membrane Oxygenation. Microorganisms 2021; 9:microorganisms9071543. [PMID: 34361978 PMCID: PMC8303158 DOI: 10.3390/microorganisms9071543] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/12/2021] [Accepted: 07/14/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Voriconazole is one of the first-line therapies for invasive pulmonary aspergillosis. Drug concentrations might be significantly influenced by the use of extracorporeal membrane oxygenation (ECMO). We aimed to assess the effect of ECMO on voriconazole exposure in a large patient population. METHODS Critically ill patients from eight centers in four countries treated with voriconazole during ECMO support were included in this retrospective study. Voriconazole concentrations were collected in a period on ECMO and before/after ECMO treatment. Multivariate analyses were performed to evaluate the effect of ECMO on voriconazole exposure and to assess the impact of possible saturation of the circuit's binding sites over time. RESULTS Sixty-nine patients and 337 samples (190 during and 147 before/after ECMO) were analyzed. Subtherapeutic concentrations (<2 mg/L) were observed in 56% of the samples during ECMO and 39% without ECMO (p = 0.80). The median trough concentration, for a similar daily dose, was 2.4 (1.2-4.7) mg/L under ECMO and 2.5 (1.4-3.9) mg/L without ECMO (p = 0.58). Extensive inter-and intrasubject variability were observed. Neither ECMO nor squared day of ECMO (saturation) were retained as significant covariates on voriconazole exposure. CONCLUSIONS No significant ECMO-effect was observed on voriconazole exposure. A large proportion of patients had voriconazole subtherapeutic concentrations.
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Affiliation(s)
- Ruth Van Daele
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, 3000 Leuven, Belgium;
- Pharmacy Department, University Hospitals Leuven, 3000 Leuven, Belgium;
- Correspondence:
| | - Britt Bekkers
- Pharmacy Department, University Hospitals Leuven, 3000 Leuven, Belgium;
| | - Mattias Lindfors
- ECMO Centre Karolinska, Department of Pediatric Perioperative Medicine and Intensive Care, Karolinska University Hospital, 17177 Stockholm, Sweden; (M.L.); (L.M.B.)
- Department of Physiology and Pharmacology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Lars Mikael Broman
- ECMO Centre Karolinska, Department of Pediatric Perioperative Medicine and Intensive Care, Karolinska University Hospital, 17177 Stockholm, Sweden; (M.L.); (L.M.B.)
- Department of Physiology and Pharmacology, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Alexander Schauwvlieghe
- Department of Hematology, Ghent University Hospital, 9000 Ghent, Belgium;
- Department of Internal Medicine, Section of Infectious Diseases, Erasmus University Medical Center, 3015 CP Rotterdam, The Netherlands;
| | - Bart Rijnders
- Department of Internal Medicine, Section of Infectious Diseases, Erasmus University Medical Center, 3015 CP Rotterdam, The Netherlands;
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Center, 3015 CP Rotterdam, The Netherlands
| | - Nicole G. M. Hunfeld
- Department of Intensive Care and Department of Hospital Pharmacy, Erasmus University Medical Center, 3015 CP Rotterdam, The Netherlands;
| | - Nicole P. Juffermans
- Department of Intensive Care, Amsterdam University Medical Center, 1105 AZ Amsterdam, The Netherlands;
| | - Fabio Silvio Taccone
- Department of Intensive Care, Hôpital Erasme, Université Libre de Bruxelles (ULB), 1050 Brussels, Belgium; (F.S.T.); (C.A.C.S.)
| | - Carlos Antônio Coimbra Sousa
- Department of Intensive Care, Hôpital Erasme, Université Libre de Bruxelles (ULB), 1050 Brussels, Belgium; (F.S.T.); (C.A.C.S.)
| | - Luc-Marie Jacquet
- Cardiovascular Intensive Care, Cliniques Universitaires Saint-Luc, 1050 Brussels, Belgium;
| | - Pierre-François Laterre
- Department of Intensive Care, Cliniques Universitaires St-Luc, Université Catholique de Louvain, 1050 Brussels, Belgium;
| | - Eric Nulens
- Laboratory Medicine, Medical Microbiology, Algemeen Ziekenhuis Sint-Jan, Brugge-Oostende, 8000 Brugge, Belgium;
| | - Veerle Grootaert
- Pharmacy Department, Algemeen Ziekenhuis Sint-Jan Brugge-Oostende AV, 8000 Brugge, Belgium;
| | - Haifa Lyster
- Pharmacy Department, Royal Brompton & Harefield Hospitals, London SW3 6NP, UK;
- Cardiothoracic Transplant Unit, Royal Brompton & Harefield Hospitals, London SW3 6NP, UK;
| | - Anna Reed
- Cardiothoracic Transplant Unit, Royal Brompton & Harefield Hospitals, London SW3 6NP, UK;
- Imperial College London, London SW3 6NP, UK
| | - Brijesh Patel
- Division of Anaesthetics, Pain Medicine & Intensive Care, Department of Surgery & Cancer, Faculty of Medicine, Imperial College, London SW3 6NP, UK;
- Department of Adult Intensive Care, The Royal Brompton and Harefield Hospitals, London SW3 6NP, UK;
| | - Philippe Meersseman
- Department of General Internal Medicine, Medical Intensive Care Unit, University Hospitals Leuven, 3000 Leuven, Belgium;
| | - Yves Debaveye
- Department of Cellular and Molecular Medicine, KU Leuven, 3000 Leuven, Belgium;
- Intensive Care Unit, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Joost Wauters
- Department of Microbiology and Immunology, KU Leuven, 3000 Leuven, Belgium;
- Medical Intensive Care Unit, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Christophe Vandenbriele
- Department of Adult Intensive Care, The Royal Brompton and Harefield Hospitals, London SW3 6NP, UK;
- Department of Cardiovascular Sciences, KU Leuven, 3000 Leuven, Belgium
- Department of Cardiovascular Diseases, University Hospitals Leuven, 3000 Leuven, Belgium
| | - Isabel Spriet
- Department of Pharmaceutical and Pharmacological Sciences, KU Leuven, 3000 Leuven, Belgium;
- Pharmacy Department, University Hospitals Leuven, 3000 Leuven, Belgium;
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13
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van de Peppel RJ, Schauwvlieghe A, Van Daele R, Spriet I, Van't Wout JW, Brüggemann RJ, Rijnders BJA, Hendriks BJC, de Boer MGJ. Outpatient parenteral antifungal therapy (OPAT) for invasive fungal infections with intermittent dosing of liposomal amphotericin B. Med Mycol 2021; 58:874-880. [PMID: 31965178 PMCID: PMC7527269 DOI: 10.1093/mmy/myz134] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 12/10/2019] [Accepted: 12/20/2019] [Indexed: 12/27/2022] Open
Abstract
Triazole resistant A. fumigatus has been documented in many parts of the world. In the Netherlands, incidence is now above 10% and results in the need for long-term parenteral therapy with liposomal amphotericin B (LAmB). The long terminal half-life of LAmB suggests that intermittent dosing could be effective, making the application of outpatient antifungal therapy (OPAT) possible. Here, we report our experience with the use of OPAT for Invasive Fungal Infections (IFI). All adult patients treated with LAmB with a 2 or 3 times weekly administration via the outpatient departments in four academic tertiary care centers in the Netherlands and Belgium since January 2010 were included in our analysis. Patient characteristics were collected, as well as information about diagnostics, therapy dose and duration, toxicity, treatment history and outcome of the IFI. In total, 18 patients were included. The most frequently used regimen (67%) was 5 mg/kg 3 times weekly. A partial response to the daily treatment prior to discharge was confirmed by CT-scan in 17 (94%) of patients. A favorable outcome was achieved in 13 (72%) patients. Decrease in renal function occurred in 10 (56%) cases but was reversible in all and was treatment limiting in one patient only. The 100-day mortality and 1-year mortality after initiation of OPAT were 0% and 6%, respectively. In a selected population, and after confirmation of initial response to treatment, our data support the use of OPAT with LAmB for treatment of IFI in an intermittent dosing regimen.
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Affiliation(s)
- Robert J van de Peppel
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands.,Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, The Netherlands
| | - Alexander Schauwvlieghe
- Department of Internal Medicine, Section of Infectious Diseases, Erasmus MC, University Medical Center Rotterdam
| | - Ruth Van Daele
- Pharmacy Department, University Hospitals Leuven and Department of Pharmaceutical and Pharmacological Sciences, Clinical Pharmacology and Pharmacotherapy, KU Leuven, Belgium
| | - Isabel Spriet
- Pharmacy Department, University Hospitals Leuven and Department of Pharmaceutical and Pharmacological Sciences, Clinical Pharmacology and Pharmacotherapy, KU Leuven, Belgium
| | - Jan W Van't Wout
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
| | - Roger J Brüggemann
- Department of Pharmacy and Radboud Institute for Health Sciences, Radboud University Medical Center; Center of Expertise in Mycology Radboud / CWZ, Radboud University Medical Center Nijmegen, The Netherlands
| | - Bart J A Rijnders
- Department of Internal Medicine, Section of Infectious Diseases, Erasmus MC, University Medical Center Rotterdam
| | - Bart J C Hendriks
- Department of Clinical Pharmacy and Toxicology, Leiden University Medical Center
| | - Mark G J de Boer
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, The Netherlands
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14
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Schauwvlieghe A, Dunbar A, Storme E, Vlak A, Aerts R, Maertens J, Sciot B, Van Der Wel T, Papageorgiou G, Moors I, Cornelissen J, Rijnders B, Mercier T. Stopping antibiotic therapy after 72 h in patients with febrile neutropenia following intensive chemotherapy for AML/MDS (safe study): A retrospective comparative cohort study. EClinicalMedicine 2021; 35:100855. [PMID: 33997746 PMCID: PMC8099620 DOI: 10.1016/j.eclinm.2021.100855] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 03/29/2021] [Accepted: 03/31/2021] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Induction chemotherapy for acute myeloid leukemia (AML) or myelodysplastic syndrome (MDS) is almost universally complicated by febrile neutropenia(FN). Empirical broad-spectrum antibiotic therapy (EBAT) strategies advocated by guidelines result in long periods of broad-spectrum antibiotic therapy. We compared the outcome of AML/MDS patients treated with a 3-day versus a prolonged (until neutrophil recovery) regimen. METHODS This is a retrospective comparative cohort study in AML or MDS patients undergoing remission-induction chemotherapy from 2011 to 2019, comparing 2 tertiary care hospitals with different strategies regarding antibiotic treatment for FN. At Erasmus University medical center(EMC), EBAT was stopped after 3 days of FN, in absence of a clinically or microbiologically documented infection. In the University Hospitals Leuven(UZL), a prolonged strategy was used, where EBAT was given until neutrophil recovery. The primary endpoint was a serious medical complication(SMC) defined as death or ICU admission in the 30 days after the start of chemotherapy. FINDINGS 305 and 270 AML or MDS patients received chemotherapy at EMC and UZL, respectively. Broad-spectrum antibiotic treatment was given for a median of 19 days (IQR13-25) at UZL versus 9 days at EMC (IQR5-13) (p <0·001). With the 3-day EBAT strategy, an SMC was observed in 12·5% versus 8·9% with the prolonged strategy (p = 0·17). The hazard ratio for an SMC was not significantly higher with the 3-day strategy (HR 1·357,95%CI 0·765-2·409). INTERPRETATION This study suggests that during remission induction chemotherapy it is safe to stop antibiotics after 3 days of FN in absence of infection. A comparison of both strategies in a prospective trial should be pursued.
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Affiliation(s)
- A. Schauwvlieghe
- Department of hematology, Ghent University Hospital, Gent, Belgium
- Internal Medicine, Infectious Diseases, Erasmus University Medical Center, Rotterdam, Netherlands
- Department of Hematology, Universitaire Ziekenhuizen Leuven, KU Leuven, Belgium
- Department of Hematology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, Netherlands
- Corresponding author at: Department of hematology, Ghent University Hospital, Gent, Belgium.
| | - A. Dunbar
- Internal Medicine, Infectious Diseases, Erasmus University Medical Center, Rotterdam, Netherlands
| | - E. Storme
- Department of Hematology, Universitaire Ziekenhuizen Leuven, KU Leuven, Belgium
| | - A. Vlak
- Internal Medicine, Infectious Diseases, Erasmus University Medical Center, Rotterdam, Netherlands
| | - R. Aerts
- Department of Hematology, Universitaire Ziekenhuizen Leuven, KU Leuven, Belgium
- Department of Microbiology, Immunology and Transplantation, Katholieke Universiteit Leuven, Leuven 3000, Belgium
| | - J. Maertens
- Department of Hematology, Universitaire Ziekenhuizen Leuven, KU Leuven, Belgium
| | - B. Sciot
- Department of Hematology, Universitaire Ziekenhuizen Leuven, KU Leuven, Belgium
| | - T. Van Der Wel
- Internal Medicine, Infectious Diseases, Erasmus University Medical Center, Rotterdam, Netherlands
| | - G. Papageorgiou
- Department of Biostatistics, Erasmus University Medical Centre, Rotterdam, Netherlands
| | - I. Moors
- Department of hematology, Ghent University Hospital, Gent, Belgium
| | - J.J. Cornelissen
- Department of Hematology, Erasmus MC Cancer Institute, Erasmus University Medical Center, Rotterdam, Netherlands
| | - B.J.A. Rijnders
- Internal Medicine, Infectious Diseases, Erasmus University Medical Center, Rotterdam, Netherlands
| | - T. Mercier
- Department of Hematology, Universitaire Ziekenhuizen Leuven, KU Leuven, Belgium
- Department of Microbiology, Immunology and Transplantation, Katholieke Universiteit Leuven, Leuven 3000, Belgium
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15
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Mercier T, Dunbar A, de Kort E, Schauwvlieghe A, Reynders M, Guldentops E, Blijlevens NMA, Vonk AG, Rijnders B, Verweij PE, Lagrou K, Maertens J. Lateral flow assays for diagnosing invasive pulmonary aspergillosis in adult hematology patients: A comparative multicenter study. Med Mycol 2021; 58:444-452. [PMID: 31290552 DOI: 10.1093/mmy/myz079] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 06/18/2019] [Accepted: 06/24/2019] [Indexed: 01/18/2023] Open
Abstract
Fast diagnosis of invasive pulmonary aspergillosis (IPA) is essential as early adequate therapy improves survival. However, current microbiological methods suffer from a low sensitivity or a long turnaround time, often as a result of batching. Recently, two lateral flow assays for diagnosing IPA have been CE (Conformité Européenne)-marked and commercialized. These assays can be used for fast single sample testing. However, clinical validation and comparative studies are lacking. We therefore sought to evaluate and compare these assays in adult hematology patients. We retrospectively tested 235 bronchoalveolar lavage fluid (BALf) samples of adult hematology patients from four centers using the AspLFD (OLM Diagnostics) and the sōna Aspergillus galactomannan LFA (IMMY). Both tests were read out independently by two researchers and by a digital reader. We included 11 patients with proven IPA, 64 with probable IPA, 43 with possible fungal disease, and 117 controls with no signs of IPA. In cases of proven IPA, the performance of both assays was similar. In cases of proven and probable IPA, we found an identical specificity for both assays, but a higher sensitivity (0.83 vs 0.69, P = .008) and a better negative predictive value (0.89 vs 0.82, P = .009) for the LFA. Digital readout improved the diagnostic performance of both tests. In conclusion, both assays showed a good performance for the diagnosis of IPA in BALf from adult hematology patients. Results were further improved by using a digital reader, especially for weakly positive results.
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Affiliation(s)
- Toine Mercier
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium.,Department of Hematology, University Hospitals Leuven, Leuven, Belgium
| | - Albert Dunbar
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Elizabeth de Kort
- Department of Hematology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Alexander Schauwvlieghe
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Marijke Reynders
- Department of Laboratory Medicine, Medical Microbiology, AZ St Jan Bruges, Bruges, Belgium
| | - Ellen Guldentops
- Department of Hematology, University Hospitals Leuven, Leuven, Belgium
| | - Nicole M A Blijlevens
- Department of Hematology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Alieke G Vonk
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Bart Rijnders
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Paul E Verweij
- Department of Medical Microbiology, Radboud University Medical Center, Nijmegen, The Netherlands.,Center of Expertise in Mycology Radboudumc/CWZ, Nijmegen, The Netherlands
| | - Katrien Lagrou
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium.,Department of Laboratory Medicine and National Reference Centre for Mycosis, University Hospitals Leuven, Leuven, Belgium
| | - Johan Maertens
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium.,Department of Hematology, University Hospitals Leuven, Leuven, Belgium
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16
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Devos T, Geukens T, Schauwvlieghe A, Ariën KK, Barbezange C, Cleeren M, Compernolle V, Dauby N, Desmecht D, Grimaldi D, Lambrecht BN, Luyten A, Maes P, Moutschen M, Romano M, Seyler L, Nevessignsky MT, Vandenberghe K, van Griensven J, Verbeke G, Vlieghe E, Yombi JC, Liesenborghs L, Verhamme P, Meyfroidt G. Correction to: A randomized, multicentre, open-label phase II proof-of-concept trial investigating the clinical efficacy and safety of the addition of convalescent plasma to the standard of care in patients hospitalized with COVID-19: the Donated Antibodies Working against nCoV (DAWn-Plasma) trial. Trials 2020; 21:1024. [PMID: 33317581 PMCID: PMC7734912 DOI: 10.1186/s13063-020-04947-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Affiliation(s)
- Timothy Devos
- University Hospitals Leuven (UZ Leuven), Leuven, Belgium. .,Catholic University of Leuven (KU Leuven), Leuven, Belgium.
| | - Tatjana Geukens
- University Hospitals Leuven (UZ Leuven), Leuven, Belgium.,Catholic University of Leuven (KU Leuven), Leuven, Belgium
| | | | - Kevin K Ariën
- Instituut voor Tropische Geneeskunde, Antwerp, Belgium
| | | | - Myriam Cleeren
- University Hospitals Leuven (UZ Leuven), Leuven, Belgium
| | | | - Nicolas Dauby
- Universite Libre de Bruxelles Institut d 'Immunologie Medicale, Bruxelles, Belgium
| | | | | | | | | | - Piet Maes
- Katholieke Universiteit Leuven Rega Institute for Medical Research, Leuven, Belgium
| | | | | | - Lucie Seyler
- Universitair Ziekenhuis Brussel, Bruxelles, Belgium
| | | | | | | | - Geert Verbeke
- Interuniversity Institute for Biostatistics and statistical Bioinformatics, Leuven, Belgium
| | - Erika Vlieghe
- Universitair Ziekenhuis Antwerpen, Antwerpen, Belgium
| | - Jean Cyr Yombi
- Cliniques Universitaires Saint-Luc, Sint-Lambrechts-Woluwe, Belgium
| | - Laurens Liesenborghs
- Katholieke Universiteit Leuven Rega Institute for Medical Research, Leuven, Belgium
| | - Peter Verhamme
- University Hospitals Leuven (UZ Leuven), Leuven, Belgium
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17
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Devos T, Geukens T, Schauwvlieghe A, Ariën KK, Barbezange C, Cleeren M, Compernolle V, Dauby N, Desmecht D, Grimaldi D, Lambrecht BN, Luyten A, Maes P, Moutschen M, Romano M, Seyler L, Nevessignsky MT, Vandenberghe K, van Griensven J, Verbeke G, Vlieghe E, Yombi JC, Liesenborghs L, Verhamme P, Meyfroidt G. A randomized, multicentre, open-label phase II proof-of-concept trial investigating the clinical efficacy and safety of the addition of convalescent plasma to the standard of care in patients hospitalized with COVID-19: the Donated Antibodies Working against nCoV (DAWn-Plasma) trial. Trials 2020; 21:981. [PMID: 33246499 PMCID: PMC7691949 DOI: 10.1186/s13063-020-04876-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 11/04/2020] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND The COVID-19 pandemic has imposed an enormous burden on health care systems around the world. In the past, the administration of convalescent plasma of patients having recovered from SARS and severe influenza to patients actively having the disease showed promising effects on mortality and appeared safe. Whether or not this also holds true for the novel SARS-CoV-2 virus is currently unknown. METHODS DAWn-Plasma is a multicentre nation-wide, randomized, open-label, phase II proof-of-concept clinical trial, evaluating the clinical efficacy and safety of the addition of convalescent plasma to the standard of care in patients hospitalized with COVID-19 in Belgium. Patients hospitalized with a confirmed diagnosis of COVID-19 are eligible when they are symptomatic (i.e. clinical or radiological signs) and have been diagnosed with COVID-19 in the 72 h before study inclusion through a PCR (nasal/nasopharyngeal swab or bronchoalveolar lavage) or a chest-CT scan showing features compatible with COVID-19 in the absence of an alternative diagnosis. Patients are randomized in a 2:1 ratio to either standard of care and convalescent plasma (active treatment group) or standard of care only. The active treatment group receives 2 units of 200 to 250 mL of convalescent plasma within 12 h after randomization, with a second administration of 2 units 24 to 36 h after ending the first administration. The trial aims to include 483 patients and will recruit from 25 centres across Belgium. The primary endpoint is the proportion of patients that require mechanical ventilation or have died at day 15. The main secondary endpoints are clinical status on day 15 and day 30 after randomization, as defined by the WHO Progression 10-point ordinal scale, and safety of the administration of convalescent plasma. DISCUSSION This trial will either provide support or discourage the use of convalescent plasma as an early intervention for the treatment of hospitalized patients with COVID-19 infection. TRIAL REGISTRATION ClinicalTrials.gov NCT04429854 . Registered on 12 June 2020 - Retrospectively registered.
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Affiliation(s)
- Timothy Devos
- University Hospitals Leuven (UZ Leuven), Leuven, Belgium.
- Catholic University of Leuven (KU Leuven), Leuven, Belgium.
| | - Tatjana Geukens
- University Hospitals Leuven (UZ Leuven), Leuven, Belgium
- Catholic University of Leuven (KU Leuven), Leuven, Belgium
| | | | - Kevin K Ariën
- Instituut voor Tropische Geneeskunde, Antwerp, Belgium
| | | | - Myriam Cleeren
- University Hospitals Leuven (UZ Leuven), Leuven, Belgium
| | | | - Nicolas Dauby
- Universite Libre de Bruxelles Institut d'Immunologie Medicale, Bruxelles, Belgium
| | | | | | | | | | - Piet Maes
- Katholieke Universiteit Leuven Rega Institute for Medical Research, Leuven, Belgium
| | | | | | - Lucie Seyler
- Universitair Ziekenhuis Brussel, Bruxelles, Belgium
| | | | | | | | - Geert Verbeke
- Interuniversity Institute for Biostatistics and statistical Bioinformatics, Leuven, Belgium
| | - Erika Vlieghe
- Universitair Ziekenhuis Antwerpen, Antwerpen, Belgium
| | - Jean Cyr Yombi
- Cliniques Universitaires Saint-Luc, Sint-Lambrechts-Woluwe, Belgium
| | - Laurens Liesenborghs
- Katholieke Universiteit Leuven Rega Institute for Medical Research, Leuven, Belgium
| | - Peter Verhamme
- University Hospitals Leuven (UZ Leuven), Leuven, Belgium
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Mercier T, Dunbar A, Veldhuizen V, Holtappels M, Schauwvlieghe A, Maertens J, Rijnders B, Wauters J. Point of care aspergillus testing in intensive care patients. Crit Care 2020; 24:642. [PMID: 33168049 PMCID: PMC7652676 DOI: 10.1186/s13054-020-03367-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Accepted: 10/29/2020] [Indexed: 01/05/2023]
Abstract
Background Invasive pulmonary aspergillosis (IPA) is an increasingly recognized complication in intensive care unit (ICU) patients, especially those with influenza, cirrhosis, chronic obstructive pulmonary disease, and other diseases. The diagnosis can be challenging, especially in the ICU, where clinical symptoms as well as imaging are mostly nonspecific. Recently, Aspergillus lateral flow tests were developed to decrease the time to diagnosis of IPA. Several studies have shown promising results in bronchoalveolar lavage fluid (BALf) from hematology patients. We therefore evaluated a new lateral flow test for IPA in ICU patients. Methods Using left-over BALf from adult ICU patients in two university hospitals, we studied the performance of the Aspergillus galactomannan lateral flow assay (LFA) by IMMY (Norman, OK, USA). Patients were classified according to the 2008 EORTC-MSG definitions, the AspICU criteria, and the modified AspICU criteria, which incorporate galactomannan results. These internationally recognized consensus definitions for the diagnosis of IPA incorporate patient characteristics, microbiology and radiology. The LFA was read out visually and with a digital reader by researchers blinded to the final clinical diagnosis and IPA classification. Results We included 178 patients, of which 55 were classified as cases (6 cases of proven and 26 cases of probable IPA according to the EORTC-MSG definitions, and an additional 23 cases according to the modified AspICU criteria). Depending on the definitions used, the sensitivity of the LFA was 0.88–0.94, the specificity was 0.81, and the area under the ROC curve 0.90–0.94, indicating good overall test performance. Conclusions In ICU patients, the LFA performed well on BALf and can be used as a rapid screening test while waiting for other microbiological results.
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Affiliation(s)
- Toine Mercier
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium. .,Department of Hematology, University Hospitals Leuven, Leuven, Belgium.
| | - Albert Dunbar
- Department of Internal Medicine, Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Vincent Veldhuizen
- Department of Internal Medicine, Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Michelle Holtappels
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Alexander Schauwvlieghe
- Department of Hematology, University Hospitals Leuven, Leuven, Belgium.,Department of Internal Medicine, Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands.,Department of Hematology, University Hospitals Ghent, Ghent, Belgium
| | - Johan Maertens
- Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium.,Department of Hematology, University Hospitals Leuven, Leuven, Belgium
| | - Bart Rijnders
- Department of Internal Medicine, Infectious Diseases, Erasmus University Medical Center, Rotterdam, The Netherlands
| | - Joost Wauters
- Department of Intensive Care Medicine, University Hospitals Leuven, Leuven, Belgium
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19
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Dunbar A, Schauwvlieghe A, Algoe S, van Hellemond JJ, Reynders M, Vandecasteele S, Boelens J, Depuydt P, Rijnders B. Epidemiology of Pneumocystis jirovecii Pneumonia and (Non-)use of Prophylaxis. Front Cell Infect Microbiol 2020; 10:224. [PMID: 32500040 PMCID: PMC7243458 DOI: 10.3389/fcimb.2020.00224] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 04/22/2020] [Indexed: 01/21/2023] Open
Abstract
Objectives: Pneumocystis jirovecii pneumonia (PCP) is an AIDS-defining illness. In patients with HIV, the benefit of PCP prophylaxis is well-defined when the CD4 T-cell count decreases below 200 cells/μL. In other immunocompromised patients, the value of PCP prophylaxis is not always as well-established. This study aimed to describe the epidemiology of PCP in recent years and assess how many patients with PCP did or did not receive prophylaxis in the month preceding the infection. Material and Methods: A multicenter retrospective study was performed in 3 tertiary care hospital. A list of patients that underwent broncho-alveolar lavage sampling and Pneumocystis jirovecii (PJ) PCR testing was retrieved from the microbiology laboratories. An in-house PJ quantitative PCR (qPCR) was used in each center. A cycle threshold (Ct) value of ≤ 28.5-30 was considered a probable PCP. For patients with a positive PJ qPCR but above this threshold, a predefined case definition of possible PCP was defined as a qPCR Ct value ≤ 34-35 and both of the following criteria: 1. Clinical and radiological features compatible with PCP and 2. The patient died or received PCP therapy and survived. Patient files from those with a qPCR Ct value ≤ 35 were reviewed to determine whether the patient fulfilled the case definition and if PCP prophylaxis had been used in the weeks preceding the PCP. Disease-specific guidelines, as well as hospital-wide guidelines, were used to evaluate if prophylaxis could be considered indicated. Results: From 2012 to 2018, 482 BAL samples were tested. Two hundred and four had a qPCR Ct value ≤ 35 and were further evaluated: 90 fulfilled the definition of probable and 63 of possible PCP while the remaining 51 were considered colonized. Seventy-four percentages of the patients with PCP were HIV-negative. Only 11 (7%) of the 153 patients had received prophylaxis, despite that in 133 (87%) cases prophylaxis was indicated according to guidelines. Conclusion: In regions where HIV testing and treatment is available without restrictions, PCP is mainly diagnosed in non-HIV immunocompromised patients. More than four out of five patients with PCP had not received prophylaxis. Strategies to improve awareness of antimicrobial prophylaxis guidelines in immunocompromised patients are urgently needed.
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Affiliation(s)
- Albert Dunbar
- Department of Internal Medicine, Infectious Diseases, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Alexander Schauwvlieghe
- Department of Internal Medicine, Infectious Diseases, Erasmus University Medical Center, Rotterdam, Netherlands.,Department of Hematology, Erasmus MC Cancer Institute, Rotterdam, Netherlands.,Department of Hematology, Ghent University Hospital, Ghent, Belgium
| | - Sheruna Algoe
- Department of Internal Medicine, Infectious Diseases, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Jaap J van Hellemond
- Department of Medical Microbiology & Infectious Diseases, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Marijke Reynders
- Department of Laboratory Medicine, Medical Microbiology, AZ St-Jan Brugge-Oostende Hospital, Bruges, Belgium
| | - Stefaan Vandecasteele
- Departments of Nephrology and Infectious Diseases, AZ St-Jan Brugge-Oostende Hospital, Bruges, Belgium
| | - Jerina Boelens
- Department of Laboratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - Pieter Depuydt
- Department of Intensive Care Medicine, Ghent University Hospital, Ghent, Belgium
| | - Bart Rijnders
- Department of Internal Medicine, Infectious Diseases, Erasmus University Medical Center, Rotterdam, Netherlands
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20
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Affiliation(s)
- Albert Dunbar
- Department of Internal Medicine, Infectious Diseases, Rotterdam, The Netherlands
| | - Alexander Schauwvlieghe
- Department ofInternal Medicine, Hematology, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Bart J A Rijnders
- Department of Internal Medicine, Infectious Diseases, Rotterdam, The Netherlands
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21
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Sys J, Provan D, Schauwvlieghe A, Vanderschueren S, Dierickx D. The role of splenectomy in autoimmune hematological disorders: Outdated or still worth considering? Blood Rev 2017; 31:159-172. [DOI: 10.1016/j.blre.2017.01.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 12/12/2016] [Accepted: 01/03/2017] [Indexed: 01/26/2023]
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