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1.
Mikrobiyol Bul ; 58(2): 209-219, 2024 Apr.
Artigo em Turco | MEDLINE | ID: mdl-38676587

RESUMO

Scedosporium/Lomentospora is an opportunistic fungal pathogen found worldwide. While Scedosporium apiospermum and Scedosporium boydii are commonly observed globally, Lomentospora prolificans, which mainly affects immunosuppressed individuals, is rarely encountered and is more prevalent in arid climates, particularly in Australia and Spain. L.prolificans is a fungus commonly found in environmental sources such as contaminated water and soil. This species is known as an opportunistic pathogen that can cause deep-seated fungal infections, especially in immunosuppressed individuals. In this case report, a fatal case of L.prolificans fungemia in a patient with T-cell large granular leukemia during profound neutropenia was presented. The patient admitted to the hospital with prolonged fever, neutropenia, and shortness of breath. Antibiotherapy was administered to the patient for febrile neutropenia, but the fever persisted and his clinical status rapidly deteriorated. L.prolificans was isolated from the blood culture, and considering its antifungal resistance, combination therapy of voriconazole and terbinafine was initiated. However, the patient died of septic shock and multiple organ failure. In conclusion, although L.prolificans infections are rare, they can be life-threatening, especially in immunosuppressed individuals. Diagnosis and treatment of such infections may be difficult, therefore rapid diagnostic methods and appropriate treatment protocols should be developed. Consideration of infections caused by rare fungal pathogens in patients with risk factors may be critical for patient care. The literature review revealed that the first case of L.prolificans fungemia from Türkiye was reported in 2023. This case presentation represents the second reported case. However, in our case, L.prolificans fungemia occurred in 2018, it can be considered that L.prolificans may have been an invasive fungal pathogen of significant concern in Türkiye much earlier than previously documented.


Assuntos
Antifúngicos , Fungemia , Voriconazol , Humanos , Evolução Fatal , Fungemia/microbiologia , Fungemia/tratamento farmacológico , Fungemia/diagnóstico , Fungemia/complicações , Antifúngicos/uso terapêutico , Masculino , Voriconazol/uso terapêutico , Terbinafina/uso terapêutico , Choque Séptico/microbiologia , Choque Séptico/tratamento farmacológico , Hospedeiro Imunocomprometido , Infecções Oportunistas/microbiologia , Infecções Oportunistas/tratamento farmacológico , Infecções Oportunistas/diagnóstico , Infecções Oportunistas/complicações , Quimioterapia Combinada , Pessoa de Meia-Idade , Scedosporium/isolamento & purificação
2.
Intern Med J ; 53(8): 1489-1491, 2023 08.
Artigo em Inglês | MEDLINE | ID: mdl-37599232

RESUMO

Scedosporium and Lomentospora species are environmental moulds that are virulent in immunocompromised hosts and rarely cause bloodstream infection (BSI). Patients with Scedosporium and Lomentospora species BSI were identified by the state public laboratory service in Queensland, Australia, over a 20-year period. Twenty-two incident episodes occurred among 21 residents; one patient had a second episode 321 days following the first. Of these, 18 were Lomentospora prolificans, three were Scedosporium apiospermum complex and one was a nonspeciated Scedosporium species. Seventeen (81%) patients died during their index admission, and all-cause mortality at 30, 90 and 365 days was 73%, 82% and 91% respectively. All 20 patients with haematological malignancy died within 365 days of follow-up with a median time to death of 9 days (interquartile range, 6-20 days) following diagnoses of BSI.


Assuntos
Fungemia , Hospedeiro Imunocomprometido , Leucemia , Scedosporium , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Austrália/epidemiologia , Fungemia/diagnóstico , Fungemia/epidemiologia , Fungemia/microbiologia , Fungemia/mortalidade , Leucemia/epidemiologia , Leucemia/mortalidade , Scedosporium/isolamento & purificação , Scedosporium/patogenicidade
3.
Ann Diagn Pathol ; 55: 151832, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34628284

RESUMO

INTRODUCTION: Granulomatous infections are common in patients with chronic lung disease. We aim to study the incidence and clinicopathological features of granulomatous infections in a cohort of patients undergoing lung transplantation for end-stage chronic lung disease. METHODS: Pathology reports of 50 explanted native lungs of patients who underwent lung transplantation since 2015 at our institution were reviewed. Four cases with granulomatous lesions were identified. Correlation was made with clinical findings in the 4 cases. RESULTS: The granulomatous infections include non-necrotizing cryptococcal pneumonitis (case 1), necrotizing pneumonia due to Scedosporium sp. and Mycobacterium avium Complex (MAC) (Cases 2 and 3), and invasive Aspergillus pneumonia (Case 4). One patient received pre-transplant fungal prophylaxis (Case 4). Post-transplant infectious complications included invasive (Cases 2 and 4) and non-invasive (Case 1) fungal infections and bacterial pneumonia (Cases 1 and 2). Two patients (Cases 3 and 4) developed acute cellular rejection (ACR) in the first 30 days. The third patient (Case 1) was identified with ACR in the 9 months post-transplant and chronic lung allograft dysfunction at 29 months. In terms of mortality, 1 patient (Case 1) died at 30 months post-transplant from pseudomonal sepsis and chronic graft failure. Two patients with invasive fungal infections (Cases 2 and 4) are on secondary prophylaxis and doing well. One patient (Case 3) remains infection-free and on MAC prophylaxis. CONCLUSIONS: In our case series, patients with chronic lung diseases with superimposed granulomatous infestations frequently experienced post-transplant complications. These include invasive infections and repeat ACRs that predispose patients to chronic graft dysfunction. Pre- and post-transplant antifungal prophylaxis reduces fungal load and complication risk post-transplant.


Assuntos
Infecções Fúngicas Invasivas , Transplante de Pulmão/efeitos adversos , Infecções por Mycobacterium não Tuberculosas , Idoso , Aspergillus fumigatus/isolamento & purificação , Feminino , Granuloma , Humanos , Infecções Fúngicas Invasivas/diagnóstico , Infecções Fúngicas Invasivas/etiologia , Infecções Fúngicas Invasivas/patologia , Pneumopatias/complicações , Pneumopatias/patologia , Masculino , Pessoa de Meia-Idade , Infecções por Mycobacterium não Tuberculosas/diagnóstico , Infecções por Mycobacterium não Tuberculosas/etiologia , Infecções por Mycobacterium não Tuberculosas/patologia , Micobactérias não Tuberculosas/isolamento & purificação , Complicações Pós-Operatórias , Estudos Retrospectivos , Scedosporium/isolamento & purificação , Resultado do Tratamento
4.
Transplant Proc ; 53(4): 1375-1378, 2021 May.
Artigo em Inglês | MEDLINE | ID: mdl-33707042

RESUMO

Infections caused by the Scedosporium genus have become recognized as a fatal complication after lung transplantation in Europe and Australia, but the reports have been rare from Asian countries including Japan. We present a case of pneumonia caused by a mixed infection of Scedosporium apiospermum (SA) and Lomentospora prolificans (LP) that developed after augmentation of immunosuppression for chronic lung allograft dysfunction (CLAD) after lung transplantation. A 13-year-old man underwent bilateral lung transplantation for pulmonary hypertension. One year after surgery, he was treated with a series of augmented immunosuppressive therapy for severe acute rejection and subsequent CLAD. Three months following the first steroid pulse therapy, his serum ß-D-glucan elevated without any sign of fungal infection by other tests. The serum ß-D-glucan once returned to a normal level by empirical administration of micafungin; however, the patient's condition worsened again by discontinuation of it. He did not recover by restarting micafungin, and computed tomography (CT) scans eventually demonstrated new infiltrates in his lung field 6 weeks after the elevation of serum ß-D-glucan. Microscopic findings of transbronchial lung biopsy specimens showed filamentous fungi, and the culture of bronchoalveolar lavage fluid revealed the growth of SA and LP. Despite subsequent voriconazole administration, he died 14 days after the start of voriconazole. Early and aggressive inspection including bronchoscopy should be performed for the diagnosis of Scedosporium infection in immunocompromised patients, even if CT scans and sputum culture show no evidence of infection.


Assuntos
Hipertensão Pulmonar/cirurgia , Infecções Fúngicas Invasivas/diagnóstico , Transplante de Pulmão/efeitos adversos , Pneumonia/diagnóstico , Adolescente , Líquido da Lavagem Broncoalveolar , Volume Expiratório Forçado , Humanos , Hospedeiro Imunocomprometido , Infecções Fúngicas Invasivas/etiologia , Infecções Fúngicas Invasivas/microbiologia , Masculino , Pneumonia/etiologia , Pneumonia/microbiologia , Scedosporium/isolamento & purificação , Tórax/diagnóstico por imagem , Tomografia Computadorizada por Raios X , beta-Glucanas/sangue
5.
Med Mycol ; 59(5): 486-497, 2021 May 04.
Artigo em Inglês | MEDLINE | ID: mdl-33037432

RESUMO

Scedosporiosis/lomentosporiosis is a devastating emerging fungal infection. Our objective was to describe the clinical pattern and to analyze whether taxonomic grouping of the species involved was supported by differences in terms of clinical presentations or outcomes. We retrospectively studied cases of invasive scedosporiosis in France from 2005 through 2017 based on isolates characterized by polyphasic approach. We recorded 90 cases, mainly related to Scedosporium apiospermum (n = 48), S. boydii/S. ellipsoideum (n = 20), and Lomentospora prolificans (n = 14). One-third of infections were disseminated, with unexpectedly high rates of cerebral (41%) and cardiovascular (31%) involvement. In light of recent Scedosporium taxonomic revisions, we aimed to study the clinical significance of Scedosporium species identification and report for the first time contrasting clinical presentations between infections caused S. apiospermum, which were associated with malignancies and cutaneous involvement in disseminated infections, and infections caused by S. boydii, which were associated with solid organ transplantation, cerebral infections, fungemia, and early death. The clinical presentation of L. prolificans also differed from that of other species, involving more neutropenic patients, breakthrough infections, fungemia, and disseminated infections. Neutropenia, dissemination, and lack of antifungal prescription were all associated with 3-month mortality. Our data support the distinction between S. apiospermum and S. boydii and between L. prolificans and Scedosporium sp. Our results also underline the importance of the workup to assess dissemination, including cardiovascular system and brain.


Scedosporiosis/lomentosporiosis is a devastating emerging fungal infection. Our objective was to describe the clinical pattern and to analyze whether taxonomic grouping of the species involved was supported by differences in terms of clinical presentations or outcomes.


Assuntos
Antifúngicos/farmacologia , Infecções Fúngicas Invasivas/microbiologia , Scedosporium/classificação , Scedosporium/efeitos dos fármacos , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Feminino , França/epidemiologia , Humanos , Lactente , Recém-Nascido , Infecções Fúngicas Invasivas/tratamento farmacológico , Infecções Fúngicas Invasivas/mortalidade , Masculino , Testes de Sensibilidade Microbiana , Pessoa de Meia-Idade , Técnicas de Tipagem Micológica , Filogenia , Estudos Retrospectivos , Scedosporium/citologia , Scedosporium/isolamento & purificação , Adulto Jovem
6.
BMC Vet Res ; 16(1): 372, 2020 Oct 02.
Artigo em Inglês | MEDLINE | ID: mdl-33008393

RESUMO

BACKGROUND: Few cases of scedosporiosis have been reported in animals, but the true prevalence is probably underestimated due to a lack of awareness. Scedosporiosis in dogs has often been associated with localized infection (i.e., nasal infection, eumycetoma, or keratomycosis) or, in rare cases, disseminated infections. CASE PRESENTATION: This case report describes the clinical and pathological features and the diagnostic process of a rare systemic and fatal fungal infection in a dog caused by Scedosporium apiospermum. A 10-month-old female Maremmano-Abruzzese sheepdog showing weakness, lethargy, lateral decubitus, miosis and muscular rigidity was presented. Rodenticide poisoning was clinically suspected for the differential diagnosis. However, postmortem examinations revealed the presence of a swollen and soft subcutaneous nodule located near the right inguinal breast, which was associated with massive enlargement of the inguinal lymph nodes and small disseminated, cream-colored nodules in the kidneys and mesentery. Multiple fungal pyogranulomas were observed upon histological examination. Fungal isolation from the kidneys, breast and inguinal lymph nodes was performed. The internal transcribed spacer (ITS) sequences from the fungal colony DNA were searched in BLAST in the NCBI GenBank for species identification. The sequences of the fungi isolated from the kidney and breast cultures showed 100% sequence identity with sequences from Scedosporium apiospermum. CONCLUSIONS: This report shows that Scedosporium apiospermum may act as a primary pathogen in young and apparently healthy dogs and represents an important pathogen that should be considered during the diagnostic process, particularly when a fungal infection is suspected.


Assuntos
Doenças do Cão/microbiologia , Infecções Fúngicas Invasivas/veterinária , Scedosporium/isolamento & purificação , Animais , DNA Fúngico , Cães , Feminino , Granuloma Piogênico/microbiologia , Linfonodos/microbiologia , Micoses/veterinária , Scedosporium/genética
7.
J Microbiol Methods ; 177: 106052, 2020 10.
Artigo em Inglês | MEDLINE | ID: mdl-32911036

RESUMO

A novel method is described for the laboratory storage of the filamentous fungi, Aspergillus fumigatus and Scedosporium apiospermum. These fungi were isolated directly from the sputum of patients with cystic fibrosis (CF) on previously described Medium B+ fungal selective agar. Medium B+ plates containing heavy growths of filamentous fungi were air dried to completeness and the resulting dehydrated agar containing fungi were hermetically sealed within A4 plastic lamination sheets using a domestic paper laminator. Fungi were successfully recovered and recultured post lamination. This method is simple, inexpensive, versatile and widely adaptable and requires minimum preparation/handling/processing, thereby encouraging the routine archiving of fungal isolates. Laminated fungal sheets may be catalogued and stored safely and securely in fireproof lockable filing cabinets in laboratories, thereby saving valuable bench- or freezer space.


Assuntos
Aspergillus fumigatus/isolamento & purificação , Fibrose Cística/microbiologia , Fungos/isolamento & purificação , Scedosporium/isolamento & purificação , Escarro/microbiologia , Ágar , Técnicas Bacteriológicas/métodos , Meios de Cultura/química , Humanos
8.
Ann Hematol ; 99(10): 2455-2456, 2020 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-32451706
9.
Rev. argent. microbiol ; 52(1): 19-21, mar. 2020. graf
Artigo em Espanhol | LILACS | ID: biblio-1155679

RESUMO

Resumen Scedosporium es un hongo de distribución mundial que se encuentra en el suelo y enaguas contaminadas. Raramente afecta tejido óseo y puede hacerlo por inoculación directa através de traumatismos. Se presenta el caso clínico de un paciente de 54 a˜nos con antecedentede accidente acuático y fractura expuesta de tibia-peroné de ambos miembros inferiores, condiagnóstico de osteomielitis crónica bacteriana tratada con antibióticos de amplio espectropor 120 días. Luego de ocho meses iniciado el cuadro, se aísla Scedosporium spp. en colecciónde miembro afectado; por tal motivo, el paciente recibe terapia con voriconazol asociado aterbinafina.© 2019 Asociacion Argentina de Microbiologıa. Publicado por Elsevier Espana, S.L.U. Este es unarticulo Open Access bajo la licencia CC BY-NC-ND (https://creativecommons.org/licenses/by-nc-nd/4.0/).


Abstract Scedosporium is a fungus that has a worldwide distribution, and which can be foundin soil and contaminated water. It can rarely affect bone tissue and can do it either by directinoculation or through trauma. We present here a case of a 54- year- old male patient with adiagnosis of chronic bacterial osteomyelitis due to an aquatic accident and exposed fracture of tibia-fibula of both members, which was treated with broad-spectrum antibiotics for 120days. Eight months after the onset of the disease, Scedosporium spp. was isolated from thecollection of one of the affected member, which was treated with voriconazole in combinationwith terbinafine.© 2019 Asociacion Argentina de Microbiologıa. Published by Elsevier Espana, S.L.U. This is anopen access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0/).


Assuntos
Humanos , Masculino , Pessoa de Meia-Idade , Osteomielite/microbiologia , Scedosporium/isolamento & purificação , Infecções Fúngicas Invasivas
10.
Med Mycol ; 58(7): 859-866, 2020 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-32030418

RESUMO

An increased prevalence of various filamentous fungi in sputum samples of patients with cystic fibrosis (CF) has been reported. The clinical significance, however, is mostly unclear. The aim of this study was to investigate the clinical relevance of Scedosporium spp. and Exophiala dermatitidis from sputum samples of patients with CF in the Netherlands. In this cross-sectional study, all CF patients of the Dutch national CF registry who were treated at five of the seven recognized CF centers during a 3-year period were included. We linked clinical data of the national CF registry with the national Dutch filamentous fungal database. We investigated the association between clinical characteristics and a positive sputum sample for Scedosporium spp. and E. dermatitidis, using logistic regression. Positive cultures for fungi were obtained from 3787 sputum samples from 699 of the 1312 patients with CF. Scedosporium spp. was associated with severe genotype, CF-related diabetes, several microorganisms, and inhaled antibiotics. E. dermatitidis was associated with older age, female sex, and Aspergillus spp. CF patients with and without Scedosporium spp. or E. dermatitidis seemed comparable in body mass index and lung function. This study suggests that Scedosporium spp. and E. dermatitidis are probably no major pathogens in CF patients in the Netherlands. Greater understanding of epidemiologic trends, risk factors, and pathogenicity of filamentous fungi in the respiratory tracts of patients with CF is needed.


Assuntos
Fibrose Cística/complicações , Fibrose Cística/microbiologia , Exophiala/isolamento & purificação , Infecções Fúngicas Invasivas/diagnóstico , Feoifomicose/diagnóstico , Scedosporium/isolamento & purificação , Escarro/microbiologia , Adolescente , Adulto , Criança , Estudos Transversais , Fibrose Cística/epidemiologia , Feminino , Humanos , Infecções Fúngicas Invasivas/etiologia , Masculino , Países Baixos/epidemiologia , Feoifomicose/etiologia , Prevalência , Adulto Jovem
11.
Medicine (Baltimore) ; 98(41): e17535, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31593129

RESUMO

Scedosporium genus as a significant emerging opportunist causes a broad spectrum of disease in not only immunosuppressed but also immunocompetent patients. The lung is one of the most commonly encountered sites of Scedosporium infection. Due to its very high levels of antifungal resistance, surgery has been recommended as an important part in the treatment of pulmonary Scedosporium spp infection, even in immunocompetent cases. However, whether lung surgery could help to reduce the risk of death in immunocompetent patients is not clear.We retrospectively retrieved the records of pulmonary infections with Scedosporium species in immunocompetent patients through a comprehensive literature search. The association of surgery on all-cause mortality was explored using binary logistic regression (BLR). Receiver operating characteristic (ROC) curve analysis was carried out to evaluate the capability of the model.The comprehensive searching strategy yielded 33 case reports and 3 case series in total, with 40 individual patients being included. The overall mortality was 12.50%. The fatality rate was 9.09% (2/22) in cases with surgery and 16.67% (3/18) in cases without surgery (odds ratio, 0.50; 95% confidence interval, 0.07-3.38; P = .48). Consistently, BLR analysis identified no statistical association between surgery and reduced mortality (odds ratio, 1.19; 95% confidence interval, 0.09-15.64; P = .89), after adjusting for age, gender, and antifungal chemotherapy. The area under the ROC curve was 0.88.For immunocompetent patients with pulmonary Scedosporium spp infection, surgical therapy may not be associated with reduced mortality. Surgical excision could be considered but is not imperative in this group of patients.


Assuntos
Pneumopatias Fúngicas/tratamento farmacológico , Pneumopatias Fúngicas/cirurgia , Infecções Respiratórias/tratamento farmacológico , Infecções Respiratórias/cirurgia , Scedosporium/efeitos dos fármacos , Adulto , Idoso , Idoso de 80 Anos ou mais , Antifúngicos/uso terapêutico , Farmacorresistência Fúngica/fisiologia , Feminino , Humanos , Hospedeiro Imunocomprometido/efeitos dos fármacos , Pneumopatias Fúngicas/microbiologia , Pneumopatias Fúngicas/mortalidade , Masculino , Pessoa de Meia-Idade , Mortalidade/tendências , Micoses/tratamento farmacológico , Micoses/epidemiologia , Micoses/microbiologia , Micoses/mortalidade , Estudos Observacionais como Assunto , Cuidados Pós-Operatórios , Infecções Respiratórias/microbiologia , Infecções Respiratórias/mortalidade , Estudos Retrospectivos , Scedosporium/isolamento & purificação , Voriconazol/administração & dosagem , Voriconazol/uso terapêutico
12.
Medicine (Baltimore) ; 98(27): e16063, 2019 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31277100

RESUMO

RATIONALE: Scedosporium species is rare pathogen of ocular infection. The accurate diagnosis is delaying in many cases and the clinical prognosis is poor due to its resistance to antifungal agents. This report describes a patient with infectious scleritis and corneal ulcer caused by Scedosporium auranticum infection who required enucleation to control the infection. PATIENT CONCERNS: A 70-year-old woman visited our clinic after experiencing ocular discomfort in her right eye for 4 days after minor ocular trauma, with soil exposure. DIAGNOSES: Scedosporium species was isolated from a culture of corneal tissue, Scedosporium aurantiacum was identified in a culture of necrotic tissue. INTERVENTIONS: She was started on treatment with antifungal agents, including topical amphotericin B and systemic fluconazole, but her ocular condition did not improve. Although the lesion showed temporary improvement, ocular pain and corneal ulcer recurred 3 months later. Evisceration was performed due to corneal perforation, and enucleation was also performed for dehiscence of the conjunctiva and scleral necrosis. OUTCOMES: After enucleation, postoperative systemic voriconazole treatment controlled the infection without recurrence. LESSONS: S aurantiacum keratitis is difficult to eradicate, even with several months of treatment with systemic and topical antifungal agents, and tends to progress to scleritis. The infection can be terminated by the orbital enucleation. Infection with this rare organism should be included in the differential diagnosis of patients with severe infectious keratitis.


Assuntos
Antifúngicos/uso terapêutico , Úlcera da Córnea , Enucleação Ocular , Infecções Oculares Fúngicas/terapia , Esclerite/microbiologia , Idoso , Úlcera da Córnea/etiologia , Úlcera da Córnea/microbiologia , Úlcera da Córnea/terapia , Infecções Oculares Fúngicas/complicações , Infecções Oculares Fúngicas/patologia , Feminino , Humanos , Scedosporium/isolamento & purificação
13.
Arch Bronconeumol (Engl Ed) ; 55(11): 559-564, 2019 Nov.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-31178266

RESUMO

INTRODUCTION: In recent years an increase in the prevalence of colonization and infection by Scedosporium spp. in patients with cystic fibrosis (CF) has been observed. In this article, we study the frequency of isolation of Scedosporium spp. in an adult CF Unit, analyzing characteristics of the patients and predisposing factors. METHODS: A retrospective observational study was conducted in 87 adult CF patients in whom the presence of positive culture for Scedosporium spp. was tested for a 5-year period (January 2012-July 2017). We recorded the following clinical variables: age, sex, body mass index, genotype, presence of pancreatic insufficiency, bacterial colonization, lung function, other complications, exacerbations and treatment, and the modified Bhalla score from the last high-resolution computed tomography. Results were analyzed with IBM SPSS Statistics Version 22.0 software. RESULTS: Scedosporium spp. was isolated in 25.3% of patients. In the bivariate analysis, these patients showed a higher rate of Pseudomonas aeruginosa infection, worse score in the Bhalla classification (highlighting the following items: bronchiectasis, mucus plugs and bronchial generations), a slight decrease in the lung diffusion capacity and more frequently received inhaled antibiotics. In the logistic regression multivariate analysis, only the bronchial generations item was significant. CONCLUSION: Scedosporium spp. must be considered an emerging opportunistic pathogen in patients with CF whose clinical involvement, risk factors or need for treatment is unknown.


Assuntos
Fibrose Cística/microbiologia , Scedosporium/isolamento & purificação , Adulto , Antibacterianos/uso terapêutico , Antifúngicos/uso terapêutico , Estudos de Coortes , Fibrose Cística/fisiopatologia , Feminino , Humanos , Modelos Logísticos , Masculino , Pseudomonas aeruginosa/isolamento & purificação , Capacidade de Difusão Pulmonar , Estudos Retrospectivos , Escarro/microbiologia , Adulto Jovem
14.
Microb Pathog ; 129: 168-175, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30742949

RESUMO

In this present study, for the first time, we evaluated the cystic fibrosis (CF) patients for the Scedosporium species and their antifungal susceptibility against eight antifungal agents. During one-year period, 90 Sputum samples were collected from Iranian CF patients. All samples were evaluated by direct microscopic examination, culture onto four different media including Malt extract agar, Inhibitory mold agar, Brain Heart Infusion and Scedo-Select III. The mold isolated fungi were identified by PCR-Sequencing of ITS and ß-tubulin genes. In-vitro antifungal susceptibility was performed according to the Clinical & Laboratory Standards Institute (CLSI) M38-A2 guidelines. Out of 90 CF patients, 47 (52.2%) were male. The age of the patients ranged from 1 to 34 years (median of 15.84 ±â€¯7.41 years). Overall, 3 (3.3%) cases were positive for Scedosporium spp. of which two isolates were characterized as Scedosporium boydii and one isolate as S. ellipsoideum. Among Aspergillus genus, A. flavus (29.4%) was the most prevalent species followed by A. tubingensis (24.7%), A. niger (17.0%) and A. fumigatus (14.5%). The minimum effective concentration ranges of micafungin, anidulafungin, and caspofungin were 0.008-0.031 µg/mL, 0.0625-0.25 µg/mL, and 0.0625-0.25 µg/mL, respectively. All isolates of Scedosporium species showed high minimum inhibitory concentration to the triazoles tested, except voriconazole. Our results showed that A. flavus and Scedosporium species are the most prevalent molds isolated from CF patient populations in Iran. Our findings have also showed that Scedo-Select III can be used as a reliable culture media for isolation of Scedosporium spp. in clinical samples.


Assuntos
Fibrose Cística/complicações , Pneumopatias Fúngicas/epidemiologia , Pneumopatias Fúngicas/microbiologia , Scedosporium/isolamento & purificação , Adolescente , Adulto , Antifúngicos/farmacologia , Criança , Pré-Escolar , Análise por Conglomerados , DNA Fúngico/química , DNA Fúngico/genética , DNA Espaçador Ribossômico/química , DNA Espaçador Ribossômico/genética , Feminino , Humanos , Lactente , Irã (Geográfico)/epidemiologia , Masculino , Testes de Sensibilidade Microbiana , Técnicas Microbiológicas , Microscopia , Filogenia , Prevalência , Estudos Prospectivos , Scedosporium/classificação , Scedosporium/genética , Análise de Sequência de DNA , Tubulina (Proteína)/genética , Adulto Jovem
16.
Crit Rev Microbiol ; 45(1): 1-21, 2019 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-30628529

RESUMO

Invasive Scedosporium spp. and Lomentospora prolificans infections are an emerging threat in immunocompromised and occasionally in healthy hosts. Scedosporium spp. is intrinsically resistant to most, L. prolificans to all the antifungal drugs currently approved, raising concerns about appropriate treatment decisions. High mortality rates of up to 90% underline the need for comprehensive diagnostic workup and even more for new, effective antifungal drugs to improve patient outcome. For a comprehensive analysis, we identified cases of severe Scedosporium spp. and L. prolificans infections from the literature diagnosed in 2000 or later and the FungiScope® registry. For 208 Scedosporium spp. infections solid organ transplantation (n = 58, 27.9%) and for 56 L. prolificans infection underlying malignancy (n = 28, 50.0%) were the most prevalent risk factors. L. prolificans infections frequently presented as fungemia (n = 26, 46.4% versus n = 12, 5.8% for Scedosporium spp.). Malignancy, fungemia, CNS and lung involvement predicted worse outcome for scedosporiosis and lomentosporiosis. Patients treated with voriconazole had a better overall outcome in both groups compared to treatment with amphotericin B formulations. This review discusses the epidemiology, prognostic factors, pathogen susceptibility to approved and investigational antifungals, and treatment strategies of severe infections caused by Scedosporium spp. and L. prolificans.


Assuntos
Infecções Fúngicas Invasivas/diagnóstico , Infecções Fúngicas Invasivas/patologia , Scedosporium/isolamento & purificação , Adulto , Idoso , Antifúngicos/uso terapêutico , Feminino , Humanos , Hospedeiro Imunocomprometido , Infecções Fúngicas Invasivas/microbiologia , Infecções Fúngicas Invasivas/mortalidade , Masculino , Pessoa de Meia-Idade , Neoplasias/complicações , Transplante de Órgãos/efeitos adversos , Prognóstico , Fatores de Risco , Análise de Sobrevida , Resultado do Tratamento , Voriconazol/uso terapêutico
17.
Med Mycol ; 57(2): 155-160, 2019 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-29554296

RESUMO

Aspergillus fumigatus is commonly found in the airways of patients with cystic fibrosis (CF), and allergic bronchopulmonary aspergillosis (ABPA) is the most recognized associated clinical condition. However, accurate diagnosis remains challenging, and there is a paucity of clinical trials to guide clinical management of fungal disease. The aim of this survey was to assess the variability in current practice across the UK in diagnosis and management of fungal lung disease in CF patients. A 21 question anonymous online survey was sent to 94 paediatric and adult CF consultants in the UK. The response rate was 60.6% (32 adult physicians, 25 pediatricians) with 55 full and 2 partially completed surveys. For a first diagnosis of ABPA 20 (35.1%) treat with prednisolone alone, 38 (66.7%) use prednisolone with itraconazole and 2 (3.5%) choose voriconazole. Only 5 (8.8%) treat with prednisolone alone for a 1st relapse, 33 (58%) used prednisolone with itraconazole. To reduce treatment, 21 (36.8%) decrease steroids to zero over time and maintain azole therapy, 18 (31.6%) stop the azole and steroid after a fixed time, and 5 (8.8%) stop the azole after a fixed time and maintain a small steroid dose. Thirty-eight (66.7%) respondents believe Aspergillus colonization of the airway can cause clinical deterioration, and 37 (66.1%) would treat this. Scedosporium apiospermum infection has been diagnosed and treated by 35 (61.4%) of respondents. Results of this survey highlight the variance in clinical practice and the limited evidence available to guide management of fungal infection in CF.


Assuntos
Antifúngicos/administração & dosagem , Aspergilose Broncopulmonar Alérgica/diagnóstico , Aspergilose Broncopulmonar Alérgica/tratamento farmacológico , Fibrose Cística/complicações , Padrões de Prática Médica/estatística & dados numéricos , Aspergilose Broncopulmonar Alérgica/complicações , Aspergillus fumigatus/isolamento & purificação , Humanos , Scedosporium/isolamento & purificação , Inquéritos e Questionários , Reino Unido
18.
Vet Radiol Ultrasound ; 60(1): E6-E9, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28609568

RESUMO

A 5-year-old, spayed female, Basset Hound was referred for evaluation of a urinary bladder mass. Ultrasonographic images revealed a large, inhomogeneous, hypoechoic mass associated with the dorsal wall of the neck of the urinary bladder and left ureter. Partial cystectomy and left ureteral reimplantation were performed. Histopathology showed a severe inflammatory mass lesion forming multiple granulomas. A DNA sequencing test revealed Scedosporium apiospermum as the causative agent. Susceptibility tests on the isolated strain indicated susceptibility to voriconazole. To the authors' knowledge, this is the first report describing S. apiospermum as a cause of granulomas involving the canine ureterovesicular junction.


Assuntos
Doenças do Cão/diagnóstico por imagem , Granuloma/veterinária , Micoses/veterinária , Scedosporium/isolamento & purificação , Ureter/diagnóstico por imagem , Bexiga Urinária/diagnóstico por imagem , Animais , Doenças do Cão/microbiologia , Doenças do Cão/patologia , Cães , Feminino , Granuloma/diagnóstico por imagem , Granuloma/microbiologia , Granuloma/patologia , Micoses/diagnóstico por imagem , Micoses/microbiologia , Micoses/patologia , Scedosporium/genética , Análise de Sequência de DNA/veterinária , Ultrassonografia/veterinária , Ureter/patologia , Bexiga Urinária/patologia
19.
J Cyst Fibros ; 18(2): 227-232, 2019 03.
Artigo em Inglês | MEDLINE | ID: mdl-30297214

RESUMO

Cystic fibrosis (CF) is characterised by chronic airway infection with bacteria and fungi. Infections caused by Scedosporium/Lomentospora species can occur and are difficult to treat. Moulds belonging to the genus Scedosporium/Lomentospora are detected most frequently in respiratory samples of patients with CF, next to Aspergillus spp. Our aim was to define pulmonary fungal infections due to Scedosporium/Lomentospora in CF and to study the antimycotic treatment. In this multicentre study (12 centres; duration January 2008 to December 2014) 31 patients with a lung infection caused by moulds of the genus Scedosporium/Lomentospora were included. 36 courses of antifungal treatment were documented. Scedosporium apiospermum sensu stricto accounted for 48.4% of cases. In 20/31 patients a therapeutic response under antimycotics (median duration 3.9 months) was achieved. Triple and double therapy was significantly more effective compared to monotherapy regarding FEV1, radiology, and symptoms. This data suggests that combined treatment is superior to monotherapy in patients with CF.


Assuntos
Antifúngicos , Fibrose Cística , Quimioterapia Combinada/métodos , Infecções Fúngicas Invasivas , Pneumopatias Fúngicas , Scedosporium , Adulto , Antifúngicos/administração & dosagem , Antifúngicos/classificação , Fibrose Cística/complicações , Fibrose Cística/microbiologia , Fibrose Cística/terapia , Monitoramento de Medicamentos/métodos , Monitoramento de Medicamentos/estatística & dados numéricos , Feminino , Alemanha , Humanos , Infecções Fúngicas Invasivas/diagnóstico , Infecções Fúngicas Invasivas/tratamento farmacológico , Pulmão/diagnóstico por imagem , Pulmão/fisiopatologia , Pneumopatias Fúngicas/diagnóstico , Pneumopatias Fúngicas/tratamento farmacológico , Pneumopatias Fúngicas/microbiologia , Masculino , Avaliação de Processos e Resultados em Cuidados de Saúde , Testes de Função Respiratória/métodos , Scedosporium/efeitos dos fármacos , Scedosporium/isolamento & purificação , Tomografia Computadorizada por Raios X/métodos
20.
Eur Ann Otorhinolaryngol Head Neck Dis ; 136(2): 119-121, 2019 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-30528155

RESUMO

INTRODUCTION: Chronic invasive fungal rhinosinusitis (CIFR) is a rare entity generally observed in immunodepressed subjects. The pathogen most frequently identified is Aspergillus spp. Imaging generally reveals invasive pseudoneoplastic features. We report a case of Scedosporium apiospermum (S. apiospermum) CIFR with an atypical clinical and radiological presentation. CASE REPORT: A 72-year-old immunocompetent man presented with chronic headache, neck pain and bilateral limitation of lateral gaze. Imaging revealed an isolated left sphenoidal lesion with marked bone changes and an extradural abscess over the clivus. Large endoscopic sphenoidotomy with type II rhinopharyngectomy was performed and the diagnosis of S. apiospermum CIFR was based on histological examination and fungal culture. The patient refused all medical treatment and did not present any signs of recurrence after 1 year of follow-up. DISCUSSION: S. apiospermum is a fungal species rarely isolated in CIFR. The present case was revealed by an atypical clinical presentation including isolated sphenoidal infection complicated by bilateral abducens nerve paralysis and extradural abscess. Imaging was also unusual, revealing features of fibrous dysplasia or bacterial osteomyelitis rather than the typical pseudoneoplastic appearance. The patient was successfully treated by surgery alone, which may therefore be sufficient treatment in immunocompetent subjects.


Assuntos
Abscesso Epidural/microbiologia , Infecções Fúngicas Invasivas/microbiologia , Scedosporium , Sinusite Esfenoidal/microbiologia , Idoso , Abscesso Epidural/diagnóstico por imagem , Abscesso Epidural/cirurgia , Humanos , Imunocompetência , Infecções Fúngicas Invasivas/diagnóstico por imagem , Infecções Fúngicas Invasivas/cirurgia , Masculino , Scedosporium/isolamento & purificação , Sinusite Esfenoidal/diagnóstico por imagem , Sinusite Esfenoidal/cirurgia
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