RESUMEN
BACKGROUND: Mycotic keratitis (MK) represents a corneal infection, with Fusarium species identified as the leading cause. Fusarium is a genus of filamentous fungi commonly found in soil and plants. While many Fusarium species are harmless, some can cause serious infections in humans and animals, particularly Fusarium keratitis, that can lead to severe ocular infections, prevalent cause of monocular blindness in tropical and subtropical regions of the world. Due to its incidence and importance in ophthalmology, we conducted a systematic analysis of clinical cases to increase our understanding of Fusarium keratitis by gathering clinical and demographic data. METHODS: To conduct an analysis of Fusarium keratitis, we looked through the literature from the databases PubMed, Embase, Lilacs, and Google Scholar and found 99 papers that, between March 1969 and September 2023, corresponded to 163 cases of Fusarium keratitis. RESULTS: Our analysis revealed the Fusarium solani species complex as the predominant isolate, with females disproportionately affected by Fusarium keratitis. Notably, contact lens usage emerged as a significant risk factor, implicated in nearly half of cases. Diagnosis primarily relied on culture, while treatment predominantly involved topical natamycin, amphotericin B, and/or voriconazole. Surprisingly, our findings demonstrated a prevalence of cases originating from the United States, suggesting potential underreporting and underestimation of this mycosis in tropical regions. This shows the imperative for heightened vigilance, particularly in underdeveloped regions with substantial agricultural activity, where Fusarium infections may be more prevalent than currently reported. CONCLUSION: Our study sheds light on the clinical complexities of Fusarium keratitis and emphasizes the need for further research and surveillance to effectively tackle this vision-threatening condition. Furthermore, a timely identification and early initiation of antifungal treatment appear to be as important as the choice of initial treatment itself.
Asunto(s)
Antifúngicos , Fusariosis , Fusarium , Queratitis , Humanos , Queratitis/microbiología , Queratitis/epidemiología , Queratitis/tratamiento farmacológico , Fusarium/aislamiento & purificación , Fusarium/clasificación , Fusarium/genética , Fusariosis/microbiología , Fusariosis/tratamiento farmacológico , Fusariosis/epidemiología , Fusariosis/diagnóstico , Antifúngicos/uso terapéutico , Antifúngicos/farmacología , Infecciones Fúngicas del Ojo/microbiología , Infecciones Fúngicas del Ojo/epidemiología , Infecciones Fúngicas del Ojo/tratamiento farmacológico , Femenino , Voriconazol/uso terapéutico , Prevalencia , Factores de Riesgo , Masculino , Adulto , Persona de Mediana Edad , Lentes de Contacto/microbiología , Lentes de Contacto/efectos adversos , Anfotericina B/uso terapéutico , Natamicina/uso terapéutico , Anciano , Adulto Joven , AdolescenteRESUMEN
BACKGROUND: Fusarium and allied genera (fusarioid) species are common colonizers of roots and aerial plant parts, or act as phytopathogens in forestry and horticultural or grain crops. However, they can also cause a wide range of infections in humans, including onychomycosis, cutaneous and invasive infections. Fusarioid keratitis is characterized by an infection of the cornea with a suppurative and ulcerative appearance, which may cause damage to vision and permanent blindness. The aim of the present study was to investigate the prevalence of fusarioid species, biofilm formation and antifungal susceptibility profiling of clinical isolates recovered from patients with keratitis and dermatomycoses. METHODOLOGY/PRINCIPAL FINDINGS: The study was performed between March, 2012-December, 2022. Demographic, clinical and epidemiological data of patients were also collected. In the present study, most of the patients with keratitis were male (74%), had a median age of 42 years old, worked with plant material or debris and 26% of them reported eye trauma. Regarding dermatomycosis, most of patients were female and exhibited toenail lesions. Forty-seven isolates belonged to the genus Neocosmospora (78.33%), nine to the Fusarium fujikuroi (15%) and four to the Fusarium oxysporum (6.66%) species complexes. Several strains were moderate biofilm producers, specifically among Fusarium annulatum. Most strains showed increased MICs to amphotericin B and ketoconazole and low MICs to itraconazole. MICs ranged from 0.25 to 16 µg/mL for amphotericin B, 0.0625 to >16 µg/mL for ketoconazole and 0.125 to 8 for itraconazole. CONCLUSIONS/SIGNIFICANCE: It is possible to conclude that fusarioid keratitis in Northeastern Brazil is an important and neglected disease, given the high number of cases, increased need for keratoplasty and poor outcome of the disease.
Asunto(s)
Antifúngicos , Fusarium , Queratitis , Pruebas de Sensibilidad Microbiana , Humanos , Femenino , Masculino , Adulto , Brasil/epidemiología , Queratitis/microbiología , Queratitis/epidemiología , Estudios Prospectivos , Persona de Mediana Edad , Antifúngicos/farmacología , Fusarium/efectos de los fármacos , Fusarium/aislamiento & purificación , Fusarium/clasificación , Fusariosis/microbiología , Fusariosis/epidemiología , Fusariosis/tratamiento farmacológico , Adulto Joven , Dermatomicosis/epidemiología , Dermatomicosis/microbiología , Dermatomicosis/tratamiento farmacológico , Anciano , Biopelículas/efectos de los fármacos , Biopelículas/crecimiento & desarrollo , Prevalencia , Adolescente , Infecciones Fúngicas del Ojo/microbiología , Infecciones Fúngicas del Ojo/epidemiología , Infecciones Fúngicas del Ojo/tratamiento farmacológicoRESUMEN
Recognizing the growing global burden of fungal infections, the World Health Organization established a process to develop a priority list of fungal pathogens (FPPL). In this systematic review, we aimed to evaluate the epidemiology and impact of infections caused by Fusarium spp., Scedosporium spp., and Lomentospora prolificans to inform the first FPPL. PubMed and Web of Sciences databases were searched to identify studies published between January 1, 2011 and February 23, 2021, reporting on mortality, complications and sequelae, antifungal susceptibility, preventability, annual incidence, and trends. Overall, 20, 11, and 9 articles were included for Fusarium spp., Scedosporium spp., and L. prolificans, respectively. Mortality rates were high in those with invasive fusariosis, scedosporiosis, and lomentosporiosis (42.9%-66.7%, 42.4%-46.9%, and 50.0%-71.4%, respectively). Antifungal susceptibility data, based on small isolate numbers, showed high minimum inhibitory concentrations (MIC)/minimum effective concentrations for most currently available antifungal agents. The median/mode MIC for itraconazole and isavuconazole were ≥16 mg/l for all three pathogens. Based on limited data, these fungi are emerging. Invasive fusariosis increased from 0.08 cases/100 000 admissions to 0.22 cases/100 000 admissions over the time periods of 2000-2009 and 2010-2015, respectively, and in lung transplant recipients, Scedosporium spp. and L. prolificans were only detected from 2014 onwards. Global surveillance to better delineate antifungal susceptibility, risk factors, sequelae, and outcomes is required.
Asunto(s)
Antifúngicos , Fusarium , Pruebas de Sensibilidad Microbiana , Scedosporium , Humanos , Antifúngicos/farmacología , Antifúngicos/uso terapéutico , Fusarium/efectos de los fármacos , Fusarium/aislamiento & purificación , Scedosporium/efectos de los fármacos , Scedosporium/aislamiento & purificación , Scedosporium/clasificación , Organización Mundial de la Salud , Micosis/epidemiología , Micosis/microbiología , Fusariosis/microbiología , Fusariosis/epidemiología , Ascomicetos/efectos de los fármacos , Infecciones Fúngicas InvasorasRESUMEN
BACKGROUND: Fungal keratitis is a severe eye infection that can result in blindness and visual impairment, particularly in developing countries. Fusarium spp. are the primary causative agents of this condition. Diagnosis of Fusarium keratitis (FK) is challenging, and delayed treatment can lead to serious complications. However, there is limited epidemiological data on FK, especially in tropical areas. OBJECTIVES: This study aimed to describe the clinical, laboratorial and epidemiological characteristics of FK in a tropical semi-arid region of Brazil. PATIENTS/METHODS: Adult patients with laboratory-confirmed FK diagnosed between October 2019 and March 2022 were evaluated. Fusarium isolates were characterized at molecular level and evaluated regarding antifungal susceptibility. RESULTS: A total of 226 clinical samples from patients suspected of keratitis were evaluated; fungal growth was detected in 50 samples (22.12%); out of which 42 were suggestive of Fusarium spp. (84%). Molecular analysis of a randomly selected set of 27 isolates identified F. solani species complex (n = 14); F. fujikuroi sensu lato (n = 6) and F. dimerum sensu lato (n = 7); a total of 10 haplotypes were identified among the strains. All but one Fusarium strains were inhibited by amphotericin B, natamycin and fluconazole. Most patients were male (71.42%; 30 out of 42), aged from 27 to 73 years old. Trauma was the most important risk factor for FK (40.47%; 17 out of 42). Patients were treated with antifungals, corticoids and antibiotics; keratoplasty and eye enucleation were also performed. CONCLUSIONS: The study provided insights into the characteristics of FK in tropical regions and emphasized the importance of enhanced surveillance and management strategies.
Asunto(s)
Antifúngicos , Infecciones Fúngicas del Ojo , Fusariosis , Fusarium , Queratitis , Pruebas de Sensibilidad Microbiana , Humanos , Brasil/epidemiología , Fusarium/genética , Fusarium/efectos de los fármacos , Fusarium/aislamiento & purificación , Fusarium/clasificación , Masculino , Femenino , Antifúngicos/farmacología , Antifúngicos/uso terapéutico , Adulto , Queratitis/microbiología , Queratitis/epidemiología , Queratitis/tratamiento farmacológico , Persona de Mediana Edad , Fusariosis/microbiología , Fusariosis/epidemiología , Fusariosis/tratamiento farmacológico , Infecciones Fúngicas del Ojo/microbiología , Infecciones Fúngicas del Ojo/epidemiología , Infecciones Fúngicas del Ojo/tratamiento farmacológico , Anciano , Adulto Joven , Adolescente , Clima Tropical , Anciano de 80 o más Años , Anfotericina B/farmacología , Anfotericina B/uso terapéuticoRESUMEN
A multinational outbreak of nosocomial fusarium meningitis occurred among immunocompetent patients who had undergone surgery with epidural anesthesia in Mexico. The pathogen involved had a high predilection for the brain stem and vertebrobasilar arterial system and was associated with high mortality from vessel injury. Effective treatment options remain limited; in vitro susceptibility testing of the organism suggested that it is resistant to all currently approved antifungal medications in the United States. To highlight the severe complications associated with fusarium infection acquired in this manner, we report data, clinical courses, and outcomes from 13 patients in the outbreak who presented with symptoms after a median delay of 39 days.
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Brotes de Enfermedades , Fusariosis , Fusarium , Enfermedad Iatrogénica , Meningitis Fúngica , Humanos , Antifúngicos/uso terapéutico , Fusariosis/epidemiología , Fusariosis/etiología , Fusarium/aislamiento & purificación , Enfermedad Iatrogénica/epidemiología , Meningitis Fúngica/epidemiología , Meningitis Fúngica/etiología , México/epidemiología , Brotes de Enfermedades/estadística & datos numéricos , Internacionalidad , Inmunocompetencia , Farmacorresistencia Fúngica , Analgesia Epidural/efectos adversosRESUMEN
Invasive fusariosis can be life-threatening, especially in immunocompromised patients who require intensive care unit (ICU) admission. We conducted a multicenter retrospective study to describe clinical and biologic characteristics, patient outcomes, and factors associated with death and response to antifungal therapy. We identified 55 patients with invasive fusariosis from 16 ICUs in France during 2002----2020. The mortality rate was high (56%). Fusariosis-related pneumonia occurred in 76% of patients, often leading to acute respiratory failure. Factors associated with death included elevated sequential organ failure assessment score at ICU admission or history of allogeneic hematopoietic stem cell transplantation or hematologic malignancies. Neither voriconazole treatment nor disseminated fusariosis were strongly associated with response to therapy. Invasive fusariosis can lead to multiorgan failure and is associated with high mortality rates in ICUs. Clinicians should closely monitor ICU patients with a history of hematologic malignancies or stem cell transplantation because of higher risk for death.
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Fusariosis , Neoplasias Hematológicas , Humanos , Fusariosis/tratamiento farmacológico , Fusariosis/epidemiología , Estudios Retrospectivos , Unidades de Cuidados Intensivos , Francia/epidemiología , Neoplasias Hematológicas/complicaciones , Neoplasias Hematológicas/terapia , Estudios Multicéntricos como AsuntoRESUMEN
OBJECTIVES: Historically, patients with leukaemia and invasive fusariosis (IF) have experienced poor outcomes in the setting of persistent immunosuppression. Herein, we retrospectively reviewed the incidence, presentation and outcomes of IF that are scarcely studied in contemporary cohorts of leukaemia patients. METHODS: We identified adult leukaemia patients with proven or probable IF at MD Anderson Cancer Center during 2009-21. Independent risk factors for 42 day mortality after IF diagnosis were determined using a multivariable logistic regression model. Combined with historical data, the annual IF incidence density over the past 23 years was estimated using Poisson regression analysis. RESULTS: Among 140 leukaemia patients with IF (114 proven), 118 patients (84%) had relapsed/refractory leukaemia and 124 (89%) had neutropenia at IF diagnosis. One hundred patients (71%) had pulmonary IF, 88 (63%) had disseminated IF and 48 (34%) had fungaemia. Coinfections were common (55%). Eighty-nine patients (64%) had breakthrough IF to mould-active triazoles. Most patients (84%) received combination antifungal therapy. Neutrophil recovery [adjusted OR (aOR), 0.04; 95% CI, 0.01-0.14; Pâ<â0.0001], pulmonary IF (aOR, 3.28; 95% CI, 1.11-9.70; Pâ=â0.032) and high SOFA score (aOR, 1.91 per 1-point increase; 95% CI, 1.47-2.50; Pâ<â0.0001) were independent predictors of 42 day mortality outcomes. From 1998 to 2021, IF incidence density increased significantly at an annual ratio of 1.03 (95% CI, 1.01-1.06; Pâ=â0.04). CONCLUSIONS: IF is predominantly seen in patients with relapsed/refractory leukaemia and increasingly seen as a breakthrough infection to mould-active triazoles. Despite frequent combination antifungal therapy, high mortality rates have persisted in patients with lasting neutropenia.
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Fusariosis , Leucemia , Neutropenia , Adulto , Humanos , Fusariosis/tratamiento farmacológico , Fusariosis/epidemiología , Antifúngicos/uso terapéutico , Infección Irruptiva , Azoles , Incidencia , Estudios Retrospectivos , Triazoles , Hongos , Leucemia/complicaciones , Leucemia/epidemiología , Leucemia/tratamiento farmacológico , Neutropenia/complicaciones , Neutropenia/tratamiento farmacológicoRESUMEN
Fusarium species are an emerging cause of onychomycosis, and the number of cases has dramatically increased in recent decades worldwide. This review presents an overview of the onychomycosis cases caused by Fusarium species and diagnosis and treatment that have been reported in the literature. The most common causative agent of onychomycosis is F. solani species complex, which accounts for 11.68% of the cases of Fusarium onychomycosis, followed by the F. oxysporum species complex (164 out of 1669), which is accounted for 9.83% of the total. F. fujikuroi species complex (42 out of 1669) and F. dimerum species complex (7 out of 1669) are responsible for 2.52% and 0.42 cases, respectively. Fusarium nail infections were reported in patients aged range 1-98, accounting for 5.55% (1669 out of 30082) of all cases. Asia has the highest species diversity of Fusarium onychomycosis (31.51%). South America accounts for 21.09%, and the most common causative agent is F. solani (19.32%), followed by F. oxysporum species complex (15.63%). Europe accounts for 4.90% of cases caused by F. oxysporum, followed by F. solani. Africa accounts for 23.87% of the cases due to the F. solani species complex, followed by F. oxysporum and F. fujikuroi. Distal and lateral subungual onychomycosis was the most common clinical symptom accounting for 58.7% (135 out of 230) of the cases. Data analysis relieved that terbinafine and itraconazole are active treatments for Fusarium onychomycosis. For a definitive diagnosis, combining of direct examination, culture and sequencing of the elongation factor of translation 1α are recommended. Accurate identification of the causative agents of onychomycosis due to Fusarium species and antifungal susceptibility testing is essential in patient management.
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Fusariosis , Fusarium , Onicomicosis , Humanos , Lactante , Preescolar , Niño , Adolescente , Adulto Joven , Adulto , Persona de Mediana Edad , Anciano , Anciano de 80 o más Años , Onicomicosis/diagnóstico , Onicomicosis/tratamiento farmacológico , Onicomicosis/epidemiología , Antifúngicos/uso terapéutico , Itraconazol/uso terapéutico , Fusariosis/diagnóstico , Fusariosis/tratamiento farmacológico , Fusariosis/epidemiologíaRESUMEN
Fusarium species represent an opportunistic fungal pathogen. The data in Mexico about Fusarium infections in humans are scarce. Here, we present a retrospective series of patients with a confirmed diagnosis of fusariosis in eight different hospitals in Mexico from January 2010 to December 2019. The diagnosis of proven fusariosis was made according to the European Organization for Research and Treatment of Cancer and the Mycoses Study Group Education and Research Consortium (EORT/MSG) criteria. A total of 49 cases were identified in our series. Most patients had burn injuries (49%), and 37% had hematological malignancies. Most patients had fire injuries (40%), followed by electric injuries (8%), febrile neutropenia (10%), and pancytopenia (6%). Patients had skin and soft tissue involvement in 49%, followed by blood culture isolation and biopsies from different sites of the body (lung, sinuses, bone tissue, and eyes). Febrile neutropenia (10%) and fungemia (8%) were the most common clinical syndromes in immunosuppressed patients. Most patients received monotherapy (67%), where voriconazole was used in 30% of the cases, followed by conventional amphotericin B (16%), and lipidic formulations of amphotericin B in 10% (either liposomal amphotericin B or amphotericin B lipid complex). Combination therapy was used in 20% of the cases, and the most common combination therapy was triazole plus any lipidic formulation of amphotericin B (10%). Mortality related to Fusarium infection occurred in 22% of patients. Fusariosis is a serious threat. Burn injuries and hematologic malignancies represent the most common causes of infection in this small series from Mexico.
This study describes the epidemiological characteristics of patients with fusariosis from a multicenter cohort in Mexico. These findings provide information from this invasive fungal disease that threatens different countries in Latin America.
Asunto(s)
Quemaduras , Neutropenia Febril , Fusariosis , Fusarium , Neoplasias Hematológicas , Humanos , Fusariosis/tratamiento farmacológico , Fusariosis/epidemiología , Fusariosis/veterinaria , Anfotericina B/uso terapéutico , Antifúngicos/uso terapéutico , Estudios Retrospectivos , México/epidemiología , Voriconazol/uso terapéutico , Neoplasias Hematológicas/veterinaria , Quemaduras/complicaciones , Quemaduras/epidemiología , Quemaduras/veterinaria , Neutropenia Febril/tratamiento farmacológico , Neutropenia Febril/veterinariaRESUMEN
INTRODUCTION: Fusariosis of the central nervous system (CNS) is extremely uncommon. Treatment and outcome data from previously published cases may provide some guidance in light of the ongoing fungal meningitis outbreak in 2023 involving Fusarium spp. in the United States and Mexico. METHODS: We reviewed the published literature describing cases of invasive fusariosis of the (CNS) that included data on patient demographic characteristics, treatment, and outcome. RESULTS: Twenty-six cases met inclusion criteria. The mean age was 36 years, 55% involved females, 60% had underlying hematologic malignancy, and another 16% were on immunosuppressants. The majority of infections were from Fusarium solani species complex. Overall 72% of patients died. The majority received monotherapy with amphotericin B, although some received voriconazole monotherapy or combination therapy with amphotericin B plus voriconazole with or without adjuvant surgery. Among the survivors, 3 received amphotericin B monotherapy, 2 voriconazole monotherapy, 1 combination therapy of both, and one surgery only. CONCLUSION: The overall mortality rate in published cases of fusariosis of the CNS was high, although-unlike during the current outbreak-the preponderance of patients were severely immunocompromised. While historically the majority were treated with amphotericin B monotherapy, some recent patients were treated with voriconazole monotherapy or combination therapy with amphotericin B plus voriconazole. Current guidelines recommend monotherapy with voriconazole or lipid formulations of amphotericin B or combination of both for the treatment of invasive fusariosis, which is in line with the findings from our literature review and should be considered during the ongoing 2023 outbreak.
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Fusariosis , Fusarium , Femenino , Humanos , Estados Unidos/epidemiología , Adulto , Fusariosis/tratamiento farmacológico , Fusariosis/epidemiología , Fusariosis/microbiología , Voriconazol/uso terapéutico , Anfotericina B/uso terapéutico , Antifúngicos/uso terapéutico , México/epidemiología , Sistema Nervioso CentralRESUMEN
In France, onychomycoses represent about 30% of superficial mycoses seen by dermatologists. In recent years, an increased number of mycoses have been observed due to non-dermatophytic moulds. The purpose of this study was to evaluate the epidemiological profile of identified superficial fungal infections in the Laboratory of Parasitology-Mycology of the University Hospital of Nice over a 2-year period. A retrospective study was performed from the nail, skin, and scalp samples of patients analyzed from January 2018 to December 2019. In this study, 3074 samples (54.2% nails, 39.7% skin, and 6.1% scalp) were analyzed representing 1922 patients. Among them, 809 (42.1%) patients were sampled by dermatologists and 1113 (57.9%) were sampled by our experts in the clinical unit of the University Hospital of Nice. In total, 1159 (37.7%) samples had a positive culture (1195 strains identified) including 712 (59.6%) dermatophytes, 345 (28.9%) yeasts, and 138 (11.5%) other filamentous moulds. Trichophyton rubrum was the main dermatophyte (563; 47.1%) followed by T. interdigitale (84; 7.0%), and T. soudanense (25; 2.1%). Yeasts were mostly represented by Candida albicans (155; 13.0%). Among the other moulds, Fusarium sp. was the most isolated (61; 5.1%). Dermatophytes stay predominant in superficial fungal infections where the anthropophilic species T. rubrum was found in almost half of the positive cultures. Interestingly, moulds represented an important part of infections in our population. This study highlights the increasing share of Fusarium sp. superficial fungal infection in our patients' population, perhaps requiring a major therapeutic adaptation in the years to come.
We assessed the epidemiological profile of superficial fungal infections in the Laboratory of ParasitologyMycology of the Hospital of Nice, over a 2-year period. Among our samples, dermatophytes remain predominant, mainly the species Trichophyton rubrum and we had a large proportion of Fusarium.
Asunto(s)
Dermatomicosis , Fusariosis , Fusarium , Onicomicosis , Animales , Fusariosis/epidemiología , Fusariosis/veterinaria , Estudios Retrospectivos , Onicomicosis/epidemiología , Onicomicosis/microbiología , Onicomicosis/veterinaria , Dermatomicosis/epidemiología , Dermatomicosis/microbiología , Dermatomicosis/veterinaria , Levaduras , Francia/epidemiologíaRESUMEN
BACKGROUND: Invasive fusariosis mainly affects immunocompromised patients including haematopoietic stem cell transplant recipients and those with haematologic malignancy. There are limited studies on invasive fusariosis in the Asia-Pacific region. OBJECTIVE: To describe the clinical characteristics and outcomes of invasive and non-invasive fusariosis in South Korea. PATIENTS/METHODS: From 2005 to 2020, patients with fusariosis who met the revised European Organisation for Research and Treatment of Cancer and the Mycoses Study Group criteria for the definition of proven or probable invasive fusariosis, and those with non-invasive fusariosis were retrospectively reviewed in a tertiary medical centre in Seoul, South Korea. RESULTS: Overall, 26 and 75 patients had invasive and non-invasive fusariosis, respectively. Patients with invasive fusariosis commonly had haematologic malignancy (62%), were solid organ transplant recipients (23%), and had a history of immunosuppressant usage (81%). In non-invasive fusariosis, diabetes mellitus (27%) and solid cancer (20%) were common underlying conditions. Disseminated fusariosis (54%) and invasive pulmonary disease (23%) were the most common clinical manifestations of invasive fusariosis; skin infection (48%) and keratitis (27%) were the most common manifestations of non-invasive fusariosis. Twenty-eight-day and in-hospital mortalities were high in invasive fusariosis (40% and 52%, respectively). In multivariate analysis, invasive fusariosis (adjusted odds ratio, 9.6; 95% confidence interval 1.3-70.8; p = .03) was an independent risk factor for 28-day mortality. CONCLUSIONS: Patients with invasive fusariosis were frequently immunocompromised, and more than half had disseminated fusariosis. Invasive fusariosis was associated with poor prognosis.
Asunto(s)
Fusariosis , Fusarium , Neoplasias Hematológicas , Humanos , Fusariosis/tratamiento farmacológico , Fusariosis/epidemiología , Fusariosis/etiología , Antifúngicos/uso terapéutico , Estudios Retrospectivos , Neoplasias Hematológicas/complicaciones , Neoplasias Hematológicas/tratamiento farmacológico , Huésped Inmunocomprometido , República de Corea/epidemiologíaRESUMEN
Fusariosis has presented a significant increase in their incidence in the last years. This epidemiological panorama probably is due to the increasing profile of refractory susceptibility of Fusarium spp. to available drugs, especially in immunocompromised individuals. Thus, the development of new compounds with effectiveness on these organisms is a necessity. This study evaluated the antifungal potential of a chloroacetamide derivative (4-BFCA) against resistant Fusarium strains. As a result, the compound was effective against all strains (MIC range 12.5-50 µg/mL). The time kill assay demonstrated that 4-BFCA presents a concentration-dependent fungicidal action. Although its action mechanism has not yet been elucidated, it was possible to observe its efficacy through damages and alterations provoked along the hyphae of Fusarium spp. 4-BFCA maintained a high survival rate of Tenebrio molitor larvae, suggesting that it does not cause acute systemic toxicity on this host at the concentration evaluated. In addition, 4-BFCA was 83.33% effective in combating a fungal infection in vivo on the chorioallantoid membrane of embryonated eggs. Our results are very promising and arouse interest to investigate the action of 4-BFCA on Fusarium strains since it acts as a possible candidate for the development of new therapies for the treatment of fusariosis.
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Fusariosis , Fusarium , Acetamidas/farmacología , Acetamidas/uso terapéutico , Antifúngicos/farmacología , Antifúngicos/uso terapéutico , Fusariosis/tratamiento farmacológico , Fusariosis/epidemiología , Fusariosis/microbiología , HumanosRESUMEN
Several Fusarium species cause disease on human hosts, including commonly fatal infections in immunocompromised individuals. Recently, cases of hospitalized patients affected by fusaria were reported in the Tyrrhenian Island of Sardinia, Italy. To precisely characterize the Fusarium species and haplotypes present in hospitals of the region, a multilocus DNA sequence typing (MLST) approach was applied. Water distribution systems in four departments belonging to four Sardinian hospitals were sampled. Fusarium species and sequence types (STs) were identified using MLST based on sequences of the elongation factor 1-alpha (EF-1α) gene, the nuclear ribosomal DNA intergenic spacer region (IGS rDNA), and/or a portion of the second-largest subunit of RNA polymerase (RPB2) gene. The majority of isolates obtained from Sardinian hospitals (90.7%) were identified as representatives of the Fusarium oxysporum species complex (FOSC), followed by those of the F. solani species complex (FSSC) (8.2%), and F. dimerum (1.1% of all isolates). Ten STs were found among the FOSC and FSSC, with more than 60% of the isolates identified as either FOSC ST 33 or FSSC 1 (F. petroliphilum). More than half of the FOSC isolates obtained from the water systems in all four hospitals belonged to the worldwide distributed clonal lineage ST 33. This haplotype is the most prevalent among the FOSC in different countries, being responsible for the vast majority of cases of human fusariosis.
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Fusariosis , Fusarium , Fusariosis/epidemiología , Fusarium/genética , Hospitales , Humanos , Tipificación de Secuencias Multilocus , Filogenia , AguaRESUMEN
Invasive fusariosis (IF) is associated with severe neutropenia in patients with concurrent hematologic conditions. We conducted a retrospective observational study to characterize the epidemiology of IF in 18 Spanish hospitals during 2000-2015. In that time, the frequency of IF in nonneutropenic patients increased from 0.08 cases per 100,000 admissions in 2000-2009 to 0.22 cases per 100,000 admissions in 2010-2015. Nonneutropenic IF patients often had nonhematologic conditions, such as chronic cardiac or lung disease, rheumatoid arthritis, history of solid organ transplantation, or localized fusariosis. The 90-day death rate among nonneutropenic patients (28.6%) and patients with resolved neutropenia (38.1%) was similar. However, the death rate among patients with persistent neutropenia (91.3%) was significantly higher. We used a multivariate Cox regression analysis to characterize risk factors for death: persistent neutropenia was the only risk factor for death, regardless of antifungal therapy.
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Fusariosis , Fusarium , Neutropenia , Antifúngicos/uso terapéutico , Fusariosis/tratamiento farmacológico , Fusariosis/epidemiología , Humanos , Neutropenia/tratamiento farmacológico , Neutropenia/epidemiología , Estudios Observacionales como Asunto , España/epidemiologíaRESUMEN
BACKGROUND: Fusarium is an environmental mold that causes deep or superficial mycosis in immunocompromised or immunocompetent patients respectively. METHODS: This epidemiological study evaluated the frequency of Fusarium infections in our university hospital center in France over a decade from 2007 to 2016 and its representativeness in the main clinical infections. RESULTS: A total of 715 Fusarium sp. were isolated from various sampling sites. Fusarium was detected in 0.47% of blood cultures, 31.1% of ophthalmic samples, and 8.48% of nail samples. The frequency of Fusarium infections was stable over this decade. CONCLUSIONS: The main Fusarium species complexes recorded in this study were Fusarium oxysporum species complex and Fusarium solani species complex, indicating the importance of Fusarium as a fungal agent that should be considered in clinical practice. A focus on invasive fusarioses shows that they all occur in hematology patients.
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Fusariosis , Fusarium , Antifúngicos/uso terapéutico , Francia/epidemiología , Fusariosis/tratamiento farmacológico , Fusariosis/epidemiología , Fusariosis/microbiología , Fusariosis/prevención & control , Humanos , Prevalencia , Factores de RiesgoRESUMEN
Fusarium spp. has been associated with a broad spectrum of emerging infections collectively termed fusariosis. This review includes articles published between 2005 and 2018 that describe the characteristics, clinical management, incidence, and emergence of these fungal infections. Fusarium solani and F. oxysporum are globally distributed and represent the most common complexes. Few therapeutic options exist due to intrinsic resistance, especially for the treatment of invasive fusariosis. Therefore, the use of drug combinations could be an important alternative for systemic antifungal resistance. Increase in the number of case reports on invasive fusariosis between 2005 and 2018 is evidence of the emergence of this fungal infection.
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Antifúngicos/administración & dosificación , Enfermedades Transmisibles Emergentes/parasitología , Fusariosis/parasitología , Fusarium/clasificación , Brasil/epidemiología , Enfermedades Transmisibles Emergentes/tratamiento farmacológico , Enfermedades Transmisibles Emergentes/epidemiología , Farmacorresistencia Fúngica , Fusariosis/tratamiento farmacológico , Fusariosis/epidemiología , Humanos , IncidenciaRESUMEN
Invasive fungal infections (IFI) are a significant source of morbidity and mortality for patients with acute myeloid leukemia (AML) and myelodysplastic syndromes (MDS). Given the heterogeneity of the population receiving hypomethylating agents (HMA), it is difficult for clinicians to accurately assess their patients' risk of infection. Literature on the incidence of IFI following HMA is limited to several studies of azacitidine. The primary objective of this retrospective study was to establish the incidence of IFI in HMA treated AML/MDS patients at a large U.S. comprehensive cancer center. Secondary objectives included comparing incidence of IFI among pre-specified subgroups to identify potential risk factors for IFI. Two hundred three patients with AML, intermediate to very high risk MDS or chronic myelomonocytic leukemia who received at least two cycles of HMA were included. The incidence of IFI, as defined by the European Organization for Research and Treatment of Cancer / Invasive Fungal Infections Cooperative Group criteria, was 9.6%, with 20 IFI diagnosed following HMA (three proven, four probable, 13 possible). Among the proven cases of IFI, molds included Scedosporium and Fusarium spp. Eleven patients who developed IFIs were neutropenic upon initiating HMA. The majority (17/20) of infections occurred during the first four cycles. Given this incidence, mold-active prophylaxis can be considered in patients who are neutropenic at the start of therapy.
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Antineoplásicos/efectos adversos , Fusariosis , Fusarium , Infecciones Fúngicas Invasoras , Leucemia Mieloide Aguda , Síndromes Mielodisplásicos , Scedosporium , Anciano , Antineoplásicos/administración & dosificación , Femenino , Fusariosis/inducido químicamente , Fusariosis/epidemiología , Fusariosis/prevención & control , Humanos , Incidencia , Infecciones Fúngicas Invasoras/inducido químicamente , Infecciones Fúngicas Invasoras/epidemiología , Infecciones Fúngicas Invasoras/prevención & control , Leucemia Mieloide Aguda/tratamiento farmacológico , Leucemia Mieloide Aguda/epidemiología , Masculino , Persona de Mediana Edad , Síndromes Mielodisplásicos/tratamiento farmacológico , Síndromes Mielodisplásicos/epidemiología , Estudios Retrospectivos , Factores de RiesgoAsunto(s)
Infección Hospitalaria/epidemiología , Infección Hospitalaria/microbiología , Contaminación de Equipos , Fusariosis/epidemiología , Adolescente , Adulto , Argentina/epidemiología , Infección Hospitalaria/prevención & control , Brotes de Enfermedades , Contaminación de Equipos/prevención & control , Femenino , Fusariosis/prevención & control , Fusarium/aislamiento & purificación , Hematología , Humanos , Análisis de Series de Tiempo Interrumpido , Masculino , Persona de Mediana Edad , Servicio de Oncología en Hospital , Centros de Atención Terciaria , Adulto JovenRESUMEN
Zoonotic Fusarium oxysporum infection was identified in captive-reared fingerlings of golden mahseer, Tor putitora (Hamilton, 1822) from the central Himalayan regions, India. Initially, fingerlings of T. putitora (mean length 10.8 ± 0.002 and weight 18.58 ± 0.054 g) were observed with cottony mass like growth completely covering the dorsal and caudal fins. The infected fingerlings were showing clinical signs such as sluggish, erratic movement, gasping, flared operculum and settling at one corner of the rearing tanks. The microscopic observation of 8-day old culture of cottony mass like growth showed the presence of septate macroconidia, randomly spread microconidia and chlamydospores in short-chain. From sequence analysis of ITS amplified fragment, the isolate was identified as Fusarium oxysporum, TPFCF 214 (MH464266.1) and clustered with F. oxysporum, strain NRRL 43504 (EF453107.1) and F. oxysporum, strain 20736 (JX 270150.1) isolated from the human in phylogenetic tree. An experimental infection of healthy golden mahseer fingerlings with 20 µl of F. oxysporum spore suspension (2.5 × 109 spore ml-1 ) showed the development of lesion 6-dpi at the site of injection. Experimental trial on EPC-2 cell culture recorded detachment in the monolayer, clumping and shrinking of the cell line 6-8 dpi with a spore suspension of F. oxysporum, TPFCF 214 (5.68 × 102 cell/ml). From the severity of its infection, there is a chance that F. oxysporum may emerge as pathogenically and pose a significant health risk on captive-reared golden mahseer in other Asian countries and world. As Fusarium solani and F. oxysporum are known to cause invasive fusariosis in human especially in immunocompromised patients, localized infection in immunocompetent individuals as well as osteomyelitis, arthritis, otitis, sinusitis and brain abscess, the global fish farmers, handlers and aquaculturist need to be aware of possible health hazards caused by Fusarium spp. and should adopt proper fish health management and animal husbandry practice to control the infection of Fusarium in culture environment.