Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 93
Filtrar
Más filtros

Banco de datos
País/Región como asunto
Tipo del documento
Intervalo de año de publicación
1.
Clin Infect Dis ; 73(7): e1737-e1744, 2021 10 05.
Artículo en Inglés | MEDLINE | ID: mdl-32866234

RESUMEN

BACKGROUND: The Aspergillus Galactomannan Lateral Flow Assay (LFA) is a rapid test for the diagnosis of invasive aspergillosis (IA) that has been almost exclusively evaluated in patients with hematologic malignancies. An automated digital cube reader that allows for quantification of results has recently been added to the test kits. METHODS: We performed a retrospective multicenter study on bronchoalveolar lavage fluid (BALF) samples obtained from 296 patients with various underlying diseases (65% without underlying hematological malignancy) who had BALF galactomannan (GM) ordered between 2013 and 2019 at the University of California, San Diego, the Medical University of Graz, Austria, and the Mannheim University Hospital, Germany. RESULTS: Cases were classified as proven (n = 2), probable (n = 56), putative (n = 30), possible (n = 45), and no IA (n = 162). The LFA showed an area under the curve (AUC) of 0.865 (95% confidence interval [CI] .815-.916) for differentiating proven/probable or putative IA versus no IA, with a sensitivity of 74% and a specificity of 83% at an optical density index cutoff of 1.5. After exclusion of GM as mycological criterion for case classification, diagnostic performance of the LFA was highly similar to GM testing (AUC 0.892 vs 0.893, respectively). LFA performance was consistent across different patient cohorts and centers. CONCLUSIONS: In this multicenter study the LFA assay from BALF demonstrated good diagnostic performance for IA that was consistent across patient cohorts and locations. The LFA may serve a role as a rapid test that may replace conventional GM testing in settings where GM results are not rapidly available.


Asunto(s)
Aspergilosis Pulmonar Invasiva , Antígenos Fúngicos , Aspergillus , Líquido del Lavado Bronquioalveolar , Galactosa/análogos & derivados , Humanos , Aspergilosis Pulmonar Invasiva/diagnóstico , Mananos , Estudios Retrospectivos , Sensibilidad y Especificidad
2.
Ann Hematol ; 100(2): 321-336, 2021 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-33079221

RESUMEN

To ensure the safety of high-dose chemotherapy and autologous stem cell transplantation (HDC/ASCT), evidence-based recommendations on infectious complications after HDC/ASCT are given. This guideline not only focuses on patients with haematological malignancies but also addresses the specifics of HDC/ASCT patients with solid tumours or autoimmune disorders. In addition to HBV and HCV, HEV screening is nowadays mandatory prior to ASCT. For patients with HBs antigen and/or anti-HBc antibody positivity, HBV nucleic acid testing is strongly recommended for 6 months after HDC/ASCT or for the duration of a respective maintenance therapy. Prevention of VZV reactivation by vaccination is strongly recommended. Cotrimoxazole for the prevention of Pneumocystis jirovecii is supported. Invasive fungal diseases are less frequent after HDC/ASCT, therefore, primary systemic antifungal prophylaxis is not recommended. Data do not support a benefit of protective room ventilation e.g. HEPA filtration. Thus, AGIHO only supports this technique with marginal strength. Fluoroquinolone prophylaxis is recommended to prevent bacterial infections, although a survival advantage has not been demonstrated.


Asunto(s)
Neoplasias Hematológicas/terapia , Trasplante de Células Madre Hematopoyéticas , Hepacivirus/metabolismo , Virus de la Hepatitis B/metabolismo , Hepatitis B/prevención & control , Hepatitis C/prevención & control , Pneumocystis carinii/metabolismo , Neumonía por Pneumocystis/prevención & control , Alemania , Hematología , Hepatitis B/sangre , Anticuerpos contra la Hepatitis B/sangre , Hepatitis C/sangre , Humanos , Oncología Médica , Neumonía por Pneumocystis/sangre , Guías de Práctica Clínica como Asunto , ARN Viral/sangre , Sociedades Médicas , Trasplante Autólogo , Combinación Trimetoprim y Sulfametoxazol/uso terapéutico
3.
Ann Hematol ; 100(1): 239-259, 2021 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-32997191

RESUMEN

Cancer patients frequently require central venous catheters for therapy and parenteral nutrition and are at high risk of central venous catheter-related infections (CRIs). Moreover, CRIs prolong hospitalization, cause an excess in resource utilization and treatment cost, often delay anti-cancer treatment, and are associated with a significant increase in mortality in cancer patients. We therefore summoned a panel of experts by the Infectious Diseases Working Party (AGIHO) of the German Society of Hematology and Medical Oncology (DGHO) and updated our previous guideline on CRIs in cancer patients. After conducting systematic literature searches on PubMed, Medline, and Cochrane databases, video- and meeting-based consensus discussions were held. In the presented guideline, we summarize recommendations on definition, diagnosis, management, and prevention of CRIs in cancer patients including the grading of strength of recommendations and the respective levels of evidence. This guideline supports clinicians and researchers alike in the evidence-based decision-making in the management of CRIs in cancer patients.


Asunto(s)
Infecciones Relacionadas con Catéteres/diagnóstico , Infecciones Relacionadas con Catéteres/terapia , Hematología/normas , Oncología Médica/normas , Guías de Práctica Clínica como Asunto/normas , Sociedades Médicas/normas , Infecciones Relacionadas con Catéteres/epidemiología , Catéteres Venosos Centrales/normas , Enfermedades Transmisibles/diagnóstico , Enfermedades Transmisibles/epidemiología , Enfermedades Transmisibles/terapia , Manejo de la Enfermedad , Alemania/epidemiología , Neoplasias Hematológicas/diagnóstico , Neoplasias Hematológicas/epidemiología , Neoplasias Hematológicas/terapia , Humanos
4.
Mycoses ; 64(10): 1177-1182, 2021 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-34180098

RESUMEN

BACKGROUND: Little is known about the infrastructure to translate advances in the management of patients at risk to develop invasive opportunistic fungal diseases. To assess the current state of Medical Mycology support in Germany, we conducted a survey among all 36 academic medical centres. METHODS: The survey consisted of a 3-pages questionnaire sent out in the first half of 2019. Information included details of infrastructure, education and teaching; consultation services and interdisciplinary conferences; research activities and participation in network groups; radiology, microbiology and pharmacology support; publication activity; and European Confederation for Medical Mycology (ECMM) Excellence Center designation, if assigned. RESULTS: Information was returned from 24 centres (67%). Thirteen institutions (54%) reported an independent infectious disease, and two a separate Medical Mycology department (8%); a Medical Mycology working group was reported for nine institutions (38%). An infectious disease consultation service was existent in 16 institutions (67%) and a multidisciplinary conference in 13 (54%). Fifteen institutions reported a separate study office with activities in infectious disease studies (63%). Laboratory capability for fungal identification and susceptibility testing was confirmed by all 24 institutions; testing of galactomannan by 23 (96%), cryptococcal antigen by 21 (88%), ß-D-Glucan by 9 (38%), and panfungal and Pneumocystis PCR by 21 and 22 (88% and 92%), respectively. Therapeutic drug monitoring of voriconazole was reported to be available in 15 (63%) institutions with a turnaround of ≤24 h during weekdays in 10 (42%). Two of the 24 University hospitals (8%) reported ECMM Diamond Excellence Status. CONCLUSIONS: The results of this survey document the continuing need to improve the availability of specialised Medical Mycology support in German academic medical centres.


Asunto(s)
Infecciones Fúngicas Invasoras , Micología/educación , Micosis , Centros Médicos Académicos , Alemania , Humanos , Infecciones Fúngicas Invasoras/diagnóstico , Infecciones Fúngicas Invasoras/tratamiento farmacológico , Micosis/diagnóstico , Micosis/tratamiento farmacológico , Encuestas y Cuestionarios
5.
BMC Med Imaging ; 20(1): 94, 2020 08 07.
Artículo en Inglés | MEDLINE | ID: mdl-32767967

RESUMEN

BACKGROUND: To analyse the influence of whole body (wb)-MRI on patient management compared to routine diagnostic tests in patients with fever of unknown origin (FUO). METHODS: Twenty-four patients with FUO, defined as illness of more than three weeks with fever greater than 38.3 °C, underwent wb-MRI at a 1.5 T MR-system. The MR-protocol consisted of the following sequences: axial T1 VIBE, coronal T2-TIRM and a coronal echoplanar diffusion weighted sequence (overall acquisition time 29:39 min:s). Furthermore, laboratory findings, chest-x-ray, abdominal ultrasound, CT-scans and/or PET-CT scans were evaluated and compared to the wb-MRI findings in regard to treatment changes. RESULTS: Wb-MRI yielded a correct diagnosis in 70% of the patients. In 46% the inflammatory focus was exclusively detected by wb-MRI. Focus detection by wb-MRI led to a subsequent change of the clinical management in 92% of the patients. In 6 patients both a wb-MRI and a PET-CT were performed yielding the correct diagnosis in the same 4 of 6 patients for both imaging modalities. CONCLUSIONS: Wb-MRI appears to be of value in the evaluation of FUO patients, allowing for optimized treatment by increasing diagnostic certainty. Due to its lack of nephrotoxicity and ionizing radiation it may be preferred over standard imaging techniques and PET-CT in the future. However, given the low number of patients in our trial, further prospective studies have to be performed to confirm our results.


Asunto(s)
Pruebas Diagnósticas de Rutina/métodos , Fiebre de Origen Desconocido/diagnóstico por imagen , Imagen por Resonancia Magnética/métodos , Imagen de Cuerpo Entero/métodos , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Estudios de Factibilidad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Tomografía Computarizada por Tomografía de Emisión de Positrones , Radiografía Torácica , Estudios Retrospectivos , Sensibilidad y Especificidad , Tomografía Computarizada por Rayos X , Ultrasonografía , Adulto Joven
6.
Mycoses ; 63(7): 653-682, 2020 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-32236989

RESUMEN

BACKGROUND: Invasive fungal diseases remain a major cause of morbidity and mortality in cancer patients undergoing intensive cytotoxic therapy. The choice of the most appropriate antifungal treatment (AFT) depends on the fungal species suspected or identified, the patient's risk factors (eg length and depth of granulocytopenia) and the expected side effects. OBJECTIVES: Since the last edition of recommendations for 'Treatment of invasive fungal infections in cancer patients' of the Infectious Diseases Working Party (AGIHO) of the German Society of Hematology and Medical Oncology (DGHO) in 2013, treatment strategies were gradually moving away from solely empirical therapy of presumed or possible invasive fungal diseases (IFDs) towards pre-emptive therapy of probable IFD. METHODS: The guideline was prepared by German clinical experts for infections in cancer patients in a stepwise consensus process. MEDLINE was systematically searched for English-language publications from January 1975 up to September 2019 using the key terms such as 'invasive fungal infection' and/or 'invasive fungal disease' and at least one of the following: antifungal agents, cancer, haematological malignancy, antifungal therapy, neutropenia, granulocytopenia, mycoses, aspergillosis, candidosis and mucormycosis. RESULTS: AFT of IFDs in cancer patients may include not only antifungal agents but also non-pharmacologic treatment. In addition, the armamentarium of antifungals for treatment of IFDs has been broadened (eg licensing of isavuconazole). Additional antifungals are currently under investigation or in clinical trials. CONCLUSIONS: Here, updated recommendations for the treatment of proven or probable IFDs are given. All recommendations including the levels of evidence are summarised in tables to give the reader rapid access to key information.


Asunto(s)
Antifúngicos/uso terapéutico , Neoplasias Hematológicas/tratamiento farmacológico , Hematología/organización & administración , Infecciones Fúngicas Invasoras/tratamiento farmacológico , Neoplasias/complicaciones , Guías de Práctica Clínica como Asunto , Agranulocitosis/complicaciones , Agranulocitosis/microbiología , Neoplasias Hematológicas/complicaciones , Hematología/métodos , Humanos , Huésped Inmunocomprometido , Infecciones Fúngicas Invasoras/etiología , Neoplasias/microbiología
7.
Mycoses ; 62(6): 486-493, 2019 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-30329192

RESUMEN

In immunocompromised patients with acute leukaemia as well as in allogeneic hematopoietic stem cell transplant patients, pulmonary lesions are commonly seen. Existing guidelines provide useful algorithms for diagnostic procedures and treatment options, but they do not give recommendations on how to evaluate early success or failure and if or when it is best to change therapy. Here, we review the diagnostic techniques currently used in association with clinical findings and propose an approach using a combination of computer tomography, clinical and all available biomarkers and inflammation parameters, especially those positive at baseline, to assess early response in invasive pulmonary aspergillosis. Computed tomography scans should be carried out at regular intervals during early and long-term follow-up. Imaging on day seven, or even earlier in clinically unstable patients, combined with an additional testing of biomarkers and inflammatory markers in between, is needed for a reliable assessment at day 14. If no improvement is seen after 2 weeks of therapy or the clinical condition is deteriorating, a change of antifungal therapy should be considered. Alleged breakthrough infections or treatment failure should undergo early diagnostic workup, including tissue biopsies when possible, to retrieve fungal cultures for resistance testing.


Asunto(s)
Antifúngicos/administración & dosificación , Pruebas Diagnósticas de Rutina/métodos , Monitoreo de Drogas/métodos , Neoplasias Hematológicas/complicaciones , Aspergilosis Pulmonar Invasiva/diagnóstico , Aspergilosis Pulmonar Invasiva/tratamiento farmacológico , Adulto , Biomarcadores/análisis , Biopsia , Humanos , Huésped Inmunocomprometido , Aspergilosis Pulmonar Invasiva/patología , Técnicas Microbiológicas , Tomografía Computarizada por Rayos X
8.
Mycoses ; 62(11): 1035-1042, 2019 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-31402465

RESUMEN

Invasive aspergillosis (IA) is a severe complication in immunocompromised patients. Early diagnosis is crucial to decrease its high mortality, yet the diagnostic gold standard (histopathology and culture) is time-consuming and cannot offer early confirmation of IA. Detection of IA by polymerase chain reaction (PCR) shows promising potential. Various studies have analysed its diagnostic performance in different clinical settings, especially addressing optimal specimen selection. However, direct comparison of different types of specimens in individual patients though essential, is rarely reported. We systematically assessed the diagnostic performance of an Aspergillus-specific nested PCR by investigating specimens from the site of infection and comparing it with concurrent blood samples in individual patients (pts) with IA. In a retrospective multicenter analysis PCR was performed on clinical specimens (n = 138) of immunocompromised high-risk pts (n = 133) from the site of infection together with concurrent blood samples. 38 pts were classified as proven/probable, 67 as possible and 28 as no IA according to 2008 European Organization for Research and Treatment of Cancer/Mycoses Study Group consensus definitions. A considerably superior performance of PCR from the site of infection was observed particularly in pts during antifungal prophylaxis (AFP)/antifungal therapy (AFT). Besides a specificity of 85%, sensitivity varied markedly in BAL (64%), CSF (100%), tissue samples (67%) as opposed to concurrent blood samples (8%). Our results further emphasise the need for investigating clinical samples from the site of infection in case of suspected IA to further establish or rule out the diagnosis.


Asunto(s)
Aspergilosis/diagnóstico , Huésped Inmunocomprometido , Infecciones Fúngicas Invasoras/diagnóstico , Técnicas de Diagnóstico Molecular/normas , Reacción en Cadena de la Polimerasa/normas , Adolescente , Adulto , Anciano , Aspergilosis/sangre , Aspergilosis/microbiología , Aspergillus/aislamiento & purificación , Niño , Preescolar , Femenino , Humanos , Infecciones Fúngicas Invasoras/sangre , Infecciones Fúngicas Invasoras/microbiología , Masculino , Persona de Mediana Edad , Técnicas de Diagnóstico Molecular/métodos , Estudios Retrospectivos , Sensibilidad y Especificidad , Adulto Joven
9.
Clin Microbiol Rev ; 30(4): 1065-1091, 2017 10.
Artículo en Inglés | MEDLINE | ID: mdl-28903985

RESUMEN

The incidence of azole resistance in Aspergillus species has increased over the past years, most importantly for Aspergillus fumigatus. This is partially attributable to the global spread of only a few resistance alleles through the environment. Secondary resistance is a significant clinical concern, as invasive aspergillosis with drug-susceptible strains is already difficult to treat, and exclusion of azole-based antifungals from prophylaxis or first-line treatment of invasive aspergillosis in high-risk patients would dramatically limit drug choices, thus increasing mortality rates for immunocompromised patients. Management options for invasive aspergillosis caused by azole-resistant A. fumigatus strains were recently reevaluated by an international expert panel, which concluded that drug resistance testing of cultured isolates is highly indicated when antifungal therapy is intended. In geographical regions with a high environmental prevalence of azole-resistant strains, initial therapy should be guided by such analyses. More environmental and clinical screening studies are therefore needed to generate the local epidemiologic data if such measures are to be implemented on a sound basis. Here we propose a first workflow for evaluating isolates from screening studies, and we compile the MIC values correlating with individual amino acid substitutions in the products of cyp51 genes for interpretation of DNA sequencing data, especially in the absence of cultured isolates.


Asunto(s)
Aspergillus/genética , Farmacorresistencia Fúngica/genética , Antifúngicos/farmacología , Aspergillus/efectos de los fármacos , Azoles/farmacología , Proteínas Fúngicas/genética , Humanos , Pruebas de Sensibilidad Microbiana , Fenotipo , Esterol 14-Desmetilasa/genética
10.
Ann Hematol ; 97(2): 197-207, 2018 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-29218389

RESUMEN

Immunocompromised patients are at high risk of invasive fungal infections (IFI), in particular those with haematological malignancies undergoing remission-induction chemotherapy for acute myeloid leukaemia (AML) or myelodysplastic syndrome (MDS) and recipients of allogeneic haematopoietic stem cell transplants (HSCT). Despite the development of new treatment options in the past decades, IFI remains a concern due to substantial morbidity and mortality in these patient populations. In addition, the increasing use of new immune modulating drugs in cancer therapy has opened an entirely new spectrum of at risk periods. Since the last edition of antifungal prophylaxis recommendations of the German Society for Haematology and Medical Oncology in 2014, seven clinical trials regarding antifungal prophylaxis in patients with haematological malignancies have been published, comprising 1227 patients. This update assesses the impact of this additional evidence and effective revisions. Our key recommendations are the following: prophylaxis should be performed with posaconazole delayed release tablets during remission induction chemotherapy for AML and MDS (AI). Posaconazole iv can be used when the oral route is contraindicated or not feasible. Intravenous liposomal amphotericin B did not significantly decrease IFI rates in acute lymphoblastic leukaemia (ALL) patients during induction chemotherapy, and there is poor evidence to recommend it for prophylaxis in these patients (CI). Despite substantial risk of IFI, we cannot provide a stronger recommendation for these patients. There is poor evidence regarding voriconazole prophylaxis in patients with neutropenia (CII). Therapeutic drug monitoring TDM should be performed within 2 to 5 days of initiating voriconazole prophylaxis and should be repeated in case of suspicious adverse events or of dose changes of interacting drugs (BIItu). General TDM during posaconazole prophylaxis is not recommended (CIItu), but may be helpful in cases of clinical failure such as breakthrough IFI for verification of compliance or absorption.


Asunto(s)
Antifúngicos/uso terapéutico , Huésped Inmunocomprometido , Infecciones Fúngicas Invasoras/prevención & control , Leucemia Mieloide Aguda/terapia , Síndromes Mielodisplásicos/terapia , Prevención Primaria/métodos , Ensayos Clínicos como Asunto , Monitoreo de Drogas , Hematología , Trasplante de Células Madre Hematopoyéticas , Humanos , Quimioterapia de Inducción , Infecciones Fúngicas Invasoras/inmunología , Infecciones Fúngicas Invasoras/microbiología , Leucemia Mieloide Aguda/inmunología , Leucemia Mieloide Aguda/patología , Oncología Médica , Síndromes Mielodisplásicos/inmunología , Síndromes Mielodisplásicos/patología , Sociedades Médicas , Triazoles/uso terapéutico , Voriconazol/uso terapéutico
11.
Med Mycol ; 56(1): 117-120, 2018 Jan 01.
Artículo en Inglés | MEDLINE | ID: mdl-28340175

RESUMEN

Therapy of invasive aspergillosis is becoming more difficult due to the emergence of azole resistance in Aspergillus fumigatus. A majority of resistant strains carries mutations in the CYP51A gene. Due to a lack of sensitivity of culture-based methods, molecular detection of A. fumigatus has become an important diagnostic tool. We set up the database FunResDB (www.nrz-myk.de/funresdb) to gather all available information about CYP51A-dependent azole resistance from published literature. In summary, the screening resulted in 79 CYP51A variants, which are linked to 59 nonsynonymous mutations. A tailor-made online sequence analysis tool allows for genotypic susceptibility testing of A. fumigatus.


Asunto(s)
Antifúngicos/farmacología , Aspergillus fumigatus/efectos de los fármacos , Aspergillus fumigatus/genética , Bases de Datos Genéticas , Técnicas de Genotipaje/métodos , Internet , Pruebas de Sensibilidad Microbiana/métodos , Alelos , Azoles/farmacología , Sistema Enzimático del Citocromo P-450/genética , Proteínas Fúngicas/genética , Genotipo , Humanos , Polimorfismo Genético
12.
Mycoses ; 61(11): 796-813, 2018 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-30098069

RESUMEN

Invasive fungal diseases (IFD) are a primary cause of morbidity and mortality in patients with haematological malignancies. These infections are mostly life-threatening and an early diagnosis and initiation of appropriate antifungal therapy are essential for the clinical outcome. Most commonly, Aspergillus and Candida species are involved. However, other Non-Aspergillus moulds are increasingly identified in case of documented IFD. For definite diagnosis of IFD, a combination of diagnostic tools have to be applied, including conventional mycological culture and non-conventional microbiological tests such as antibody/antigen and molecular tests, as well as histopathology and radiology. Although varying widely in cancer patients, the risk of invasive fungal infection is highest in those with allogeneic stem cell transplantation and those with acute leukaemia and markedly lower in patients with solid cancer. Since the last edition of Diagnosis of Invasive Fungal Diseases recommendations of the German Society for Hematology and Oncology in 2012, integrated care pathways have been proposed for the management and therapy of IFDs with either a diagnostic driven strategy as opposed to a clinical or empirical driven strategy. This update discusses the impact of this additional evidence and effective revisions.


Asunto(s)
Infecciones Fúngicas Invasoras/diagnóstico , Antifúngicos/uso terapéutico , Hongos/genética , Hongos/aislamiento & purificación , Hongos/fisiología , Alemania , Hematología , Humanos , Infecciones Fúngicas Invasoras/tratamiento farmacológico , Infecciones Fúngicas Invasoras/microbiología , Oncología Médica , Guías de Práctica Clínica como Asunto
13.
Artículo en Inglés | MEDLINE | ID: mdl-28743702

RESUMEN

Patients with hematologic malignancies as well as allogeneic hematopoietic stem cell transplantation (HSCT) patients are at high risk for invasive aspergillosis. Here, we report a culture- and autopsy-proven fatal invasive aspergillosis in an allogeneic HSTC patient which he developed despite posaconazole prophylaxis. The agent was determined to be an azole-resistant Aspergillus fumigatus strain bearing the cyp51A mutation combination TR46 Y121F M172I T289A. At increasing frequency, the azole resistance of A. fumigatus is being reported globally, limiting treatment options and complicating regimens.


Asunto(s)
Antifúngicos/uso terapéutico , Aspergillus fumigatus/efectos de los fármacos , Aspergillus fumigatus/genética , Azoles/uso terapéutico , Sistema Enzimático del Citocromo P-450/genética , Farmacorresistencia Fúngica Múltiple/genética , Proteínas Fúngicas/genética , Aspergilosis Pulmonar Invasiva/tratamiento farmacológico , Anciano , Alelos , Anfotericina B/uso terapéutico , Caspofungina , Equinocandinas/uso terapéutico , Humanos , Aspergilosis Pulmonar Invasiva/microbiología , Leucemia Mieloide Aguda/microbiología , Lipopéptidos/uso terapéutico , Masculino , Pruebas de Sensibilidad Microbiana , Mutación/genética , Resultado del Tratamiento , Triazoles/uso terapéutico , Voriconazol/uso terapéutico
14.
Curr Opin Infect Dis ; 30(6): 539-544, 2017 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-28938246

RESUMEN

PURPOSE OF REVIEW: The diagnosis of invasive aspergillosis in hematologic patients is a complex composite of clinical preconditions and features, imaging findings, biomarker combinations from appropriate clinical samples and microbiological and/or histological findings. RECENT FINDINGS: Recent developments in the evolving landscape of diagnostic tests for invasive aspergillosis in adult hematology patients are highlighted. SUMMARY: Novel approaches and tools are currently under development. Focusing optimized diagnostic performance, in particular the combination of biomarkers from appropriate clinical samples, improved diagnostic performance distinctly.


Asunto(s)
Neoplasias Hematológicas/complicaciones , Aspergilosis Pulmonar Invasiva/complicaciones , Aspergilosis Pulmonar Invasiva/diagnóstico , Biomarcadores/análisis , Humanos , Huésped Inmunocomprometido , Aspergilosis Pulmonar Invasiva/diagnóstico por imagen , Aspergilosis Pulmonar Invasiva/metabolismo , Técnicas de Tipificación Micológica , Radiografía Torácica , Tomografía Computarizada por Rayos X
15.
Med Mycol ; 55(5): 528-534, 2017 Jul 01.
Artículo en Inglés | MEDLINE | ID: mdl-27744310

RESUMEN

In recent years galactomannan antigen testing (GM) and also Aspergillus PCR have become increasingly important for diagnosis of invasive aspergillosis (IA). Whether or not these tests need to be performed with bronchoalveolar lavage fluid (BALF; i.e., primary site of infection), or testing of blood samples is sufficient, remains, however, a matter of debate. We evaluated the diagnostic performance of GM ELISA, and Aspergillus PCR by using BALF samples and blood samples obtained at the same day from a total of 53 immunocompromised patients (16 with probable/proven IA and 37 with no evidence of IA according to the revised EORTC/MSG criteria; 38 patients with hematological malignancies were prospectively enrolled at the Medical University of Graz, Austria, 15 patients with mixed underlying diseases at the Mannheim University Hospital). Patients with possible IA were excluded from this analysis. A total of 34/53 (64%) of all patients and 12/16 (75%) of patients with probable/proven IA received mold-active antifungal prophylaxis/therapy at the time of the BALF procedure. Sensitivities of GM and Aspergillus PCR were 38% and 44% in BALF, and 31% and 0% in blood, respectively. Best sensitivity (75%) for detecting proven/probable IA was achieved when BALF Aspergillus PCR, BALF GM (>1.0 ODI), BALF-culture and serum-GM (>0.5 ODI) were combined (specificity 95%). In conclusion, sensitivities of the evaluated diagnostic tests-when interpreted on their own-were low in BALF and even lower in blood, sensitivities increased markedly when diagnostic tests were combined.


Asunto(s)
Aspergilosis/diagnóstico , Aspergillus/genética , Aspergillus/metabolismo , Líquido del Lavado Bronquioalveolar/microbiología , Mananos/análisis , Mananos/sangre , Adulto , Anciano , Anciano de 80 o más Años , Antígenos Fúngicos/análisis , Antígenos Fúngicos/sangre , Aspergilosis/sangre , ADN de Hongos/análisis , ADN de Hongos/sangre , Femenino , Galactosa/análogos & derivados , Humanos , Huésped Inmunocomprometido , Infecciones Fúngicas Invasoras/sangre , Infecciones Fúngicas Invasoras/diagnóstico , Masculino , Técnicas Microbiológicas , Persona de Mediana Edad , Técnicas de Diagnóstico Molecular , Reacción en Cadena de la Polimerasa , Sensibilidad y Especificidad
16.
Clin Infect Dis ; 73(7): e1784-e1785, 2021 10 05.
Artículo en Inglés | MEDLINE | ID: mdl-33125456
17.
Mycoses ; 59(8): 480-93, 2016 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-27324802

RESUMEN

In 2001, caspofungin received market authorisation by the FDA and EMA and is globally licensed for several indications, including candidiasis, empirical antifungal therapy in patients with neutropenic fever of unknown origin and treatment of invasive aspergillosis in patients refractory to or intolerant of amphotericin B, lipid formulations of amphotericin B or itraconazole. Despite the lack of phase III data in first-line treatment of invasive aspergillosis, increasing evidence supports the use of first-line therapy. Here, we analyse the evidence of therapeutic activity, represented by favourable response rates, of caspofungin for invasive aspergillosis. A systematic literature search was conducted to identify international presentations and papers reporting monotherapy with caspofungin. Efficacy data are summarised separately for first-line and salvage therapy. Thirty-one papers and published abstracts reported caspofungin therapy for aspergillosis. Fifteen full papers and two abstracts fulfilled the criteria of reporting significant outcome data for caspofungin monotherapy for invasive aspergillosis. Consistent with other analyses and the known safety profile, few adverse events and associated terminations of caspofungin medication have been reported. Although a randomised, comparative, prospective study using caspofungin in this indication is still lacking, growing evidence supports the efficacy of this echinocandin not only for salvage but also for first-line therapy.


Asunto(s)
Aspergilosis/tratamiento farmacológico , Equinocandinas/uso terapéutico , Infecciones Fúngicas Invasoras/tratamiento farmacológico , Lipopéptidos/uso terapéutico , Terapia Recuperativa/métodos , Antifúngicos/uso terapéutico , Aspergilosis/microbiología , Caspofungina , Ensayos Clínicos como Asunto , Equinocandinas/administración & dosificación , Equinocandinas/efectos adversos , Humanos , Infecciones Fúngicas Invasoras/microbiología , Lipopéptidos/administración & dosificación , Lipopéptidos/efectos adversos , Estudios Prospectivos , Resultado del Tratamiento
18.
Mycoses ; 59(2): 80-5, 2016 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-26627577

RESUMEN

Invasive pulmonary aspergillosis (IPA) is a life-threatening infection mainly affecting immunocompromised patients. Early diagnosis is critical, but the diagnostic gold standard (histopathology and culture) is time consuming and cannot offer early confirmation of IPA. Fungal biomarkers like galactomannan (GM) are a promising extension to the diagnostic repertoire. However, it still remains under discussion if biomarker analysis from the site of the infection is superior to testing blood samples. We retrospectively evaluated the diagnostic performance of concurrent serum GM and bronchoalveolar lavage (BAL) GM (obtained within 24 h) of immunocompromised patients at high risk of IPA. Twenty-six proven/probable patients and eight patients with no IPA according to the EORTC/MSG 2008 criteria were included in this study. Sensitivity, specificity, positive predictive value, negative predictive value and diagnostic odds ratio were for BAL GM: 85%, 88%, 96%, 64% and 38.5, and for serum GM: 23%, 88%, 88%, 26% and 2.1 respectively. BAL GM proved to be significantly more sensitive for the detection of IPA compared to same-day serum GM in patients at high risk of IPA (P < 0.0001). Our data show that BAL GM testing is significantly superior to serum GM implying that diagnostic efforts should focus on specimens from the site of infection.


Asunto(s)
Aspergillus/inmunología , Lavado Broncoalveolar/métodos , Huésped Inmunocomprometido , Aspergilosis Pulmonar Invasiva/diagnóstico , Mananos/sangre , Adulto , Anciano , Antígenos Fúngicos/sangre , Biomarcadores/sangre , Líquido del Lavado Bronquioalveolar/inmunología , Diagnóstico Precoz , Ensayo de Inmunoadsorción Enzimática , Femenino , Galactosa/análogos & derivados , Humanos , Aspergilosis Pulmonar Invasiva/inmunología , Masculino , Mananos/inmunología , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Estudios Retrospectivos , Sensibilidad y Especificidad , Adulto Joven
19.
Mycoses ; 59(2): 67-74, 2016 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-26756571

RESUMEN

Invasive aspergillosis (IA) is an important cause of morbidity and mortality in children and adults with haematologic malignancies or undergoing allogeneic haematopoietic stem cell transplantation, and early diagnosis and adequate antifungal treatment improve outcome. However, important differences exist between children and adults regarding epidemiology, underlying disease, and comorbidities, and the value of diagnostic tools to detect IA may also differ between these patient populations. Imaging studies are important to detect IA early, but typical findings of IA in chest computed tomography of adults are not detected in the majority of children. Whereas the value of the serum marker galactomannan seems to be comparable in children and adults, data on the performance of beta-d-glucan in children are too limited for firm conclusions. PCR-based assays are a promising diagnostic approach to rapidly and reliably detect and identify Aspergillus species in various clinical samples. However, as the majority of data on PCR-based approaches has been obtained in adult patients, the value of this method in paediatric patients has not been defined to date. The present review focuses on studies of PCR-based methods to diagnose IA in immunocompromised paediatric patients.


Asunto(s)
Aspergillus/aislamiento & purificación , Huésped Inmunocomprometido , Aspergilosis Pulmonar Invasiva/diagnóstico , Reacción en Cadena de la Polimerasa/métodos , Adolescente , Adulto , Aspergillus/clasificación , Aspergillus/genética , Biomarcadores/sangre , Líquido del Lavado Bronquioalveolar , Niño , Preescolar , ADN de Hongos/sangre , Femenino , Galactosa/análogos & derivados , Humanos , Lactante , Aspergilosis Pulmonar Invasiva/sangre , Aspergilosis Pulmonar Invasiva/líquido cefalorraquídeo , Mananos/sangre , Valor Predictivo de las Pruebas , Proteoglicanos , Adulto Joven , beta-Glucanos/sangre
20.
BMC Palliat Care ; 15: 38, 2016 Apr 05.
Artículo en Inglés | MEDLINE | ID: mdl-27044257

RESUMEN

BACKGROUND: Crucial issues of modern stroke care include best practice end-of-life-decision (EOLD)-making procedures and the provision of high-quality palliative care for dying stroke patients. METHODS: We retrospectively analyzed records of those patients who died over a 4-year period (2011-2014) on our Stroke Unit concerning EOLD, focusing on the factors that most probably guided decisions to induce limitation of life-sustaining therapy and subsequently end-of-life-care procedures thereafter. RESULTS: Of all patients treated at our Stroke Unit, 120 (2.71%) died. In 101 (86.3%), a do-not-resuscitate-order (DNRO) was made during early treatment. A decision to withdraw/withhold further life supportive therapy was made in 40 patients (34.2%) after a mean of 5.0 days (range 0-29). Overall patient death occurred after a mean time of 7.0 days (range 1-30) and 2.6 days after therapy restrictions. Disturbance of consciousness at presentation, dysphagia on day 1 and large supratentorial stroke were possible indicators of decisions to therapeutic withdrawing/withholding. Proceedings of EOL care in these patients were heterogeneous; in most cases monitoring (95%), medical procedures (90%), oral medication (88%), parenteral nutrition (98%) and antibiotic therapy (86%) were either not ordered or withdrawn, however IV fluids were continued in all patients. CONCLUSIONS: A high percentage of stroke patients were rated as terminally ill and died in the course of caregiving. Disturbance of consciousness at presentation, dysphagia on day 1 and large supratentorial stroke facilitated decisions to change therapeutic goals thus initiating end-of-life-care. However, there is further need to foster research on this field in order to ameliorate outcome prognostication, to understand the dynamics of EOLD-making procedures and to educate staff to provide high-quality patient-centred palliative care in stroke medicine.


Asunto(s)
Técnicas de Apoyo para la Decisión , Accidente Cerebrovascular/mortalidad , Accidente Cerebrovascular/psicología , Cuidado Terminal/psicología , Directivas Anticipadas/psicología , Anciano , Anciano de 80 o más Años , Estudios de Cohortes , Toma de Decisiones , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Enfermo Terminal/psicología , Privación de Tratamiento
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA