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1.
Mycoses ; 67(2): e13703, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38345265

RESUMO

Scedosporium/Lomentospora species exist as saprophytic moulds that can potentially lead to serious infections in patients who have experienced near-drowning incidents. Scedosporium species are distributed across different regions of the world while Lomentospora prolificans has quite a restricted geographic distribution. We aimed to systematically review scedosporiosis cases after near-drowning, their clinical manifestations, underlying diseases, treatments, outcomes and its impact through disability-adjusted life years (DALYs). Five available sources were searched from 1 January 2007, to 20 April 2022. Thirty-eight studies, including 41 patients, were evaluated. Mean age was 33.6 ± 18.6 years (range 1-68), and 28 were male (68.3%). Central nervous system (CNS) dissemination predominated (36/41; 87.8%), presenting mainly as multiple brain abscesses (26/41; 63.4%), followed by lung involvement (22/41; 56.4%). Scedosporium apiospermum species complex was the most causative agent (38/41; 92.7%). Overall mortality was 51.2%. Half of the patients (18/37) were cured after receiving proper treatment, and in most cases, voriconazole alone or in combination with surgery or other antifungals caused survival. The mean survival time was 123 ± 27 days. Mean DALYs in 1980-2022 were 46.110 ± 3.318 (39.607-52.612). Time to diagnosis was estimated to be 120 days, and there was no association between time to diagnosis and outcome. Voriconazole is a potentially effective therapy, and combination of surgery and antifungal treatment may lead to more favourable outcome. Advances in early diagnosis and appropriate antifungal therapy may have contributed to reducing its mortality.


Assuntos
Ascomicetos , Infecções Fúngicas Invasivas , Afogamento Iminente , Scedosporium , Humanos , Masculino , Lactente , Pré-Escolar , Criança , Adolescente , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Idoso , Feminino , Antifúngicos/uso terapêutico , Voriconazol/uso terapêutico , Anos de Vida Ajustados pela Incapacidade
2.
J Fungi (Basel) ; 9(4)2023 Mar 29.
Artigo em Inglês | MEDLINE | ID: mdl-37108880

RESUMO

Mucormycosis has emerged as a group of severe infections mainly in immunocompromised patients. We analysed the epidemiology of mucormycosis in Greece in a multicentre, nationwide prospective survey of patients of all ages, during 2005-2022. A total of 108 cases were recorded. The annual incidence declined after 2009 and appeared stable thereafter, at 0.54 cases/million population. The most common forms were rhinocerebral (51.8%), cutaneous (32.4%), and pulmonary (11.1%). Main underlying conditions were haematologic malignancy/neutropenia (29.9%), haematopoietic stem cell transplantation (4.7%), diabetes mellitus (DM) (15.9%), other immunodeficiencies (23.4%), while 22.4% of cases involved immunocompetent individuals with cutaneous/soft-tissue infections after motor vehicle accident, surgical/iatrogenic trauma, burns, and injuries associated with natural disasters. Additionally, DM or steroid-induced DM was reported as a comorbidity in 21.5% of cases with various main conditions. Rhizopus (mostly R. arrhizus) predominated (67.1%), followed by Lichtheimia (8.5%) and Mucor (6.1%). Antifungal treatment consisted mainly of liposomal amphotericin B (86.3%), median dose 7 mg/kg/day, range 3-10 mg/kg/day, with or without posaconazole. Crude mortality was 62.8% during 2005-2008 but decreased significantly after 2009, at 34.9% (p = 0.02), with four times fewer haematological cases, fewer iatrogenic infections, and fewer cases with advanced rhinocerebral form. The increased DM prevalence should alert clinicians for timely diagnosis of mucormycosis in this patient population.

3.
Artigo em Inglês | MEDLINE | ID: mdl-36483391

RESUMO

Objective: We surveyed antimicrobials used in Greek pediatric hematology-oncology (PHO) and bone marrow transplant (BMT) units before and after an intervention involving education regarding the 2017 clinical practice guidelines (CPG) for the management of febrile neutropenia in children with cancer and hematopoietic stem-cell transplant recipients. Design: Antibiotic prescribing practices were prospectively recorded between June 2016 and November 2017. Intervention: In December 2017, baseline data feedback was provided, and CPG education was provided. Prescribing practices were followed for one more year. For antibiotic stewardship, days of therapy, and length of therapy were calculated. Setting: Five of the 6 PHO units in Greece and the single pediatric BMT unit participated. Participants: Admitted children in each unit who received the first 15 new antibiotic courses each month. Results: Administration of ≥4 antibiotics simultaneously and administration of antibiotics with overlapping activity for ≥2 days were significantly more common in PHO units in general hospitals compared to children's hospitals. Use of at least 1 antifungal was recorded in ∼47% of the patients before and after the intervention. De-escalation and/or discontinuation of antibiotics on day 6 of initial treatment increased significantly from 43% to 53.5% (P = .032). Although the number of patients requiring intensive care support for sepsis did not change, a significant drop was noted in all-cause mortality (P = .008). Conclusions: We recorded the antibiotic prescribing practices in Greek PHO and BMT units, we achieved improved prescribing with a simple intervention, and we identified areas in need of improvement.

4.
Open Forum Infect Dis ; 9(11): ofac535, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-36381625

RESUMO

Background: Sargramostim (yeast-derived, glycosylated recombinant human granulocyte-macrophage colony-stimulating factor [rhu GM-CSF]) augments innate and adaptive immune responses and accelerates hematopoietic recovery of chemotherapy-induced neutropenia. However, considerably less is known about its efficacy as adjunctive immunotherapy against invasive fungal diseases (IFDs). Methods: The clinical courses of 15 patients with pediatric malignancies and IFDs treated adjunctively with sargramostim at a single institution were analyzed in a retrospective cohort review. Further, a systematic review of published reports of rhu GM-CSF for IFDs was also conducted. Results: Among 65 cases, 15 were newly described pediatric patients and 50 were previously published cases of IFDs treated with rhu GM-CSF. Among the newly reported pediatric patients, IFDs were caused by Candida spp., Trichosporon sp., and molds (Aspergillus spp., Rhizopus sp., Lichtheimia sp., and Scedosporium sp). Twelve (80%) were neutropenic at baseline, and 12 (80%) were refractory to antifungal therapy. Among 12 evaluable patients, the overall response rate was 92% (8 [67%] complete responses, 3 [25%] partial responses, and 1 [8%] stable). Treatment is ongoing in the remaining 3 patients. Among 50 published cases (15 Candida spp., 13 Mucorales, 11 Aspergillus spp., 11 other organisms), 20 (40%) had baseline neutropenia and 36 (72%) were refractory to standard therapy before rhu GM-CSF administration. Consistent with responses in the newly reported patients, the overall response rate in the literature review was 82% (40 [80%] complete responses, 1 [2%] partial response, and 9 [18%] no response). Conclusions: Sargramostim may be a potential adjunctive immunomodulator for selected patients with hematological malignancies and refractory IFDs.

5.
Int J Antimicrob Agents ; 60(4): 106666, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-36038095

RESUMO

Daptomycin (DAP) is indicated for difficult-to-treat Gram-positive infections, especially those caused by methicillin-resistant Staphylococcus aureus (MRSA). Exposure of S. aureus to subinhibitory antimicrobial concentrations (sub-MICs) has been shown to alter cell morphology and biofilm formation. This study aimed to investigate the influence of DAP biofilm sub-MICs on the damage caused by human polymorphonuclear neutrophils (PMNs) against MRSA biofilms and the potential immunomodulatory activity of DAP on human monocytes (MNCs) exposed to MRSA biofilms. DAP activity against biofilms and the impact of DAP on PMN-induced biofilm damage were evaluated by the XTT reduction assay, whereas pathogen recognition, signal transduction and cytokine modulation of DAP on MNCs in response to MRSA biofilms were assessed by RT-PCR and ELISA methodology. The MIC50 of DAP to MRSA biofilms was 16-32 mg/L. Pre-treatment of MRSA with 1, 2 or 4 mg/L DAP caused a synergistic effect on PMN-mediated biofilm damage, being dependent on the effector-to-target ratio. MNCs responded to MRSA biofilms and DAP through Toll like receptor 2 (TLR2) upregulation and increased NLRP3 inflammasome production. DAP caused 2.5-fold greater TLR2 mRNA levels than those caused by MRSA biofilms. A predominantly inflammatory response was induced by either component, causing the release of significantly increased IFN-γ, TNF-α, IL-8 and IL-6 levels by MNCs exposed to the combination treatment. MRSA biofilms alone or combined with DAP caused low amounts of IL-10 production, but increased IL-1ß levels. DAP may condition MNCs towards an inflammatory response through TLR2 engagement and NLRP3 inflammasome activation, possibly controlling biofilm-associated pathogenicity.


Assuntos
Daptomicina , Staphylococcus aureus Resistente à Meticilina , Infecções Estafilocócicas , Antibacterianos/farmacologia , Biofilmes , Daptomicina/farmacologia , Humanos , Inflamassomos/farmacologia , Interleucina-10/farmacologia , Interleucina-6 , Interleucina-8/farmacologia , Testes de Sensibilidade Microbiana , Proteína 3 que Contém Domínio de Pirina da Família NLR , RNA Mensageiro , Staphylococcus aureus , Receptor 2 Toll-Like/genética , Fator de Necrose Tumoral alfa
6.
J Pediatr Hematol Oncol ; 44(8): 471-473, 2022 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-35700406

RESUMO

Frasier syndrome (FS) is a rare condition, caused by splice-site mutations of intron 9 in the Wilms' tumor suppressor gene 1 (WT1 gene). The WT1 protein is essential for urogenital development and patients with 46XY karyotype present with female (FS type 1) or male phenotype, gonadal dysgenesis, progressive glomerulopathy, and high risk of gonadoblastoma. We describe a female patient with an IVS9+4C>T donor splice-site mutation, who underwent a preventive gonadectomy at the age of 6 years due to imaging findings of dysplastic gonads. The biopsy revealed bilateral gonadoblastoma, emphasizing the need for early gonadectomy in 46XY FS patients.


Assuntos
Gonadoblastoma , Neoplasias Ovarianas , Masculino , Feminino , Humanos , Síndrome de Frasier/genética , Síndrome de Frasier/complicações , Gonadoblastoma/genética , Gonadoblastoma/patologia , Mutação , Neoplasias Ovarianas/genética , Neoplasias Ovarianas/cirurgia , Neoplasias Ovarianas/complicações , Castração/efeitos adversos
7.
Mycoses ; 65(7): 674-682, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35514044

RESUMO

BACKGROUND: Mucormycosis has emerged as an increasingly important fungal disease for immunocompromised children and neonates, with the cutaneous form being one of its most common presentations. METHODS: We present a cutaneous mucormycosis case in a 10-year-old girl and analyse reports of single cases and case series of cutaneous mucormycosis in ≤16-year-old patients, recorded in PUBMED from 1953 to 2020, for epidemiology, risk factors, diagnostic and therapeutic procedures and outcome. RESULTS: 113 cases were enrolled. Median age was 5 years (Interquartile Range [IQR] 10.9), without gender predominance. Underlying conditions were haematologic malignancies/disorders (25.7%), prematurity (23%), solid organ transplantation (3.5%), diabetes mellitus type 1 (4.4%), immunodeficiency and other diseases (14.2%), and no underlying conditions (29.2%). Inoculation occurred through major trauma (12.4%), including surgery and motor vehicle accidents, catheter sites (27.4%), dressings, patches and probes (11.5%), burns and farm-related accidents (8.8%). Rhizopus spp. was most frequently isolated (43.4%), followed by Lichtheimia corymbifera (9.7%), Saksenaea vasiformis (8%), Mucor and Rhizomucor spp. (5.3% each), other species/combinations (7.2%) and unspecified isolates (21.2%). Surgery was combined with antifungals in 62.8%. Each was performed solely in 27.4% and 6.2%, respectively. Amphotericin B was used in 78% (alone in 55.8% and combined with other antifungals in 22.2%) of the cases. Overall mortality was 26.5%. In regression analysis, prematurity and haematologic malignancies/disorders were associated with increased mortality, whereas combination of antifungals and surgery with improved survival. CONCLUSION: Cutaneous mucormycosis mainly affects premature infants and children with haematologic malignancies/disorders. Outcome is improved when active antifungal therapy and surgery are combined.


Assuntos
Neoplasias Hematológicas , Mucormicose , Neoplasias , Adolescente , Anfotericina B/uso terapêutico , Antifúngicos/uso terapêutico , Criança , Pré-Escolar , Feminino , Neoplasias Hematológicas/complicações , Humanos , Recém-Nascido , Mucormicose/diagnóstico , Mucormicose/tratamento farmacológico , Mucormicose/epidemiologia , Neoplasias/complicações , Rhizopus
8.
Pathogens ; 11(2)2022 Feb 12.
Artigo em Inglês | MEDLINE | ID: mdl-35215184

RESUMO

(1) Background: Trichosporon species have emerged as important opportunistic fungal pathogens, with Trichosporon asahii being the leading and most frequent cause of invasive disease. (2) Methods: We performed a global review focused on invasive trichosporonosis in neonates and pediatric patients with malignancies or hematologic disorders. We reviewed case reports and case series of trichosporonosis due to T. asahii published since 1994, the year of the revised taxonomic classification. (3) Results: Twenty-four cases of invasive trichosporonosis were identified in neonates with the presence of central venous catheter and use of broad-spectrum antibiotics recognized as the main predisposing factors. Thirty-two cases were identified in children with malignancies or hematologic disorders, predominantly with severe neutropenia. Trichosporon asahii was isolated from blood in 24/32 (75%) pediatric cases. Cutaneous involvement was frequently observed in invasive trichosporonosis. Micafungin was the most commonly used prophylactic agent (9/22; 41%). Ten patients receiving prophylactic echinocandins were identified with breakthrough infections. A favorable outcome was reported in 12/16 (75%) pediatric patients receiving targeted monotherapy with voriconazole or combined with liposomal amphotericin B. Overall mortality in neonates and children with malignancy was 67% and 60%, respectively. (4) Conclusions: Voriconazole is advocated for the treatment of invasive trichosporonosis given the intrinsic resistance to echinocandins and poor susceptibility to polyenes.

9.
Expert Opin Pharmacother ; 23(2): 175-199, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34758695

RESUMO

INTRODUCTION: Invasive fungal diseases (IFDs) are a significant cause of morbidity and mortality among immunocompromised patients. Safe and effective antifungal medications used for prophylaxis and treatment are pivotal in their management. Posaconazole is a promising triazole antifungal agent. AREAS COVERED: The authors discuss the pharmacological properties of posaconazole, including pharmacokinetics/pharmacodynamics, safety and tolerability profile, together with efficacy data for prophylaxis and treatment as well as its use in special populations based on current literature. EXPERT OPINION: Posaconazole has a favorable safety and tolerability profile; however, caution is advised when co-administered with agents that are CYP3A4 inhibitors, because their concentration may significantly increase, and their levels should be closely monitored. It has an extended spectrum of activity against yeasts and filamentous fungi. It is successfully used as prophylaxis for patients with acute myeloid leukemia (AML)/myelodysplastic syndrome (MDS) and post-hematopoietic cell transplantation (HCT) with graft-versus-host disease (GVHD). It is the first line treatment for oropharyngeal candidiasis and is also used as a salvage treatment for refractory IFDs. Currently available formulations include the oral suspension, delayed-release tablets and solution for intravenous infusion, all with different PK/PD properties and indications. Its use in children and adolescents is currently being examined in Phase-II clinical trials.


Assuntos
Micoses , Triazóis , Adolescente , Antifúngicos/efeitos adversos , Humanos , Hospedeiro Imunocomprometido , Micoses/tratamento farmacológico , Micoses/prevenção & controle
10.
J Fungi (Basel) ; 7(3)2021 Mar 05.
Artigo em Inglês | MEDLINE | ID: mdl-33807678

RESUMO

Since 1985 when the first agent targeting antigens on the surface of lymphocytes was approved (muromonab-CD3), a multitude of such therapies have been used in children with hematologic malignancies. A detailed literature review until January 2021 was conducted regarding pediatric patient populations treated with agents that target CD2 (alefacept), CD3 (bispecific T-cell engager [BiTE] blinatumomab), CD19 (denintuzumab mafodotin, B43, BiTEs blinatumomab and DT2219ARL, the immunotoxin combotox, and chimeric antigen receptor [CAR] T-cell therapies tisagenlecleucel and axicabtagene ciloleucel), CD20 (rituximab and biosimilars, 90Y-ibritumomab tiuxetan, ofatumumab, and obinutuzumab), CD22 (epratuzumab, inotuzumab ozogamicin, moxetumomab pasudotox, BiTE DT2219ARL, and the immunotoxin combotox), CD25 (basiliximab and inolimomab), CD30 (brentuximab vedotin and iratumumab), CD33 (gemtuzumab ozogamicin), CD38 (daratumumab and isatuximab), CD52 (alemtuzumab), CD66b (90Y-labelled BW 250/183), CD248 (ontuxizumab) and immune checkpoint inhibitors against CTLA-4 (CD152; abatacept, ipilimumab and tremelimumab) or with PD-1/PD-L1 blockade (CD279/CD274; atezolizumab, avelumab, camrelizumab, durvalumab, nivolumab and pembrolizumab). The aim of this narrative review is to describe treatment-related invasive fungal diseases (IFDs) of each category of agents. IFDs are very common in patients under blinatumomab, inotuzumab ozogamicin, basiliximab, gemtuzumab ozogamicin, alemtuzumab, and tisagenlecleucel and uncommon in patients treated with moxetumomab pasudotox, brentuximab vedotin, abatacept, ipilimumab, pembrolizumab and avelumab. Although this new era of precision medicine shows promising outcomes of targeted therapies in children with leukemia or lymphoma, the results of this review stress the necessity for ongoing surveillance and suggest the need for antifungal prophylaxis in cases where IFDs are very common complications.

11.
Lancet Oncol ; 22(6): e254-e269, 2021 06.
Artigo em Inglês | MEDLINE | ID: mdl-33811813

RESUMO

Paediatric patients with cancer and those undergoing allogeneic haematopoietic cell transplantation have an increased susceptibility to invasive fungal diseases. In addition to differences in underlying conditions and comorbidities relative to adults, invasive fungal diseases in infants, children, and adolescents are unique in terms of their epidemiology, the validity of current diagnostic methods, the pharmacology and dosing of antifungal agents, and the absence of phase 3 clinical trials to provide data to guide evidence-based interventions. To re-examine the state of knowledge and to further improve invasive fungal disease diagnosis, prevention, and management, the 8th European Conference on Infections in Leukaemia (ECIL-8) reconvened a Paediatric Group to review the literature and to formulate updated recommendations according to the European Society of Clinical Microbiology and Infectious Diseases (ESCMID) and European Confederation of Medical Mycology (ECMM) grading system, which are summarised in this Review.


Assuntos
Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Leucemia/terapia , Micoses/terapia , Antifúngicos/uso terapêutico , Congressos como Assunto , Guias como Assunto , Humanos , Leucemia/complicações , Leucemia/epidemiologia , Leucemia/microbiologia , Micoses/complicações , Micoses/epidemiologia , Micoses/microbiologia , Pediatria/tendências
12.
J Pediatr Hematol Oncol ; 43(5): 176-179, 2021 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-32890077

RESUMO

Mucormycosis is an invasive, life-threatening fungal infection that mainly affects immunocompromised hosts. We collected data of pediatric mucormycosis cases from all 7 Greek Hematology-Oncology Departments for the years 2008-2017. Six cases of invasive mucormycosis diagnosed during treatment for malignancies were included in the study. In 4 children (66%) mucormycosis occurred within the first 20 days after diagnosis of the underlying disease. Two cases were classified as proven mucormycosis and 4 as probable. The most frequently recorded species was Rhizopus arrhizus (2 patients), followed by Mucor spp (1), and Lichtheimia spp (1). All patients received liposomal amphotericin B. Combined antifungal treatment was used in 5 cases. Surgical excision was performed in 4 cases (66%). Two patients died at 6 and 12 months after the diagnosis, respectively, 1 (17%) because of mucormycosis. Our data suggest that mucormycosis may occur early after the initiation of intensive chemotherapy in children with malignancies.


Assuntos
Anfotericina B/uso terapêutico , Antifúngicos/uso terapêutico , Neoplasias Hematológicas/complicações , Mucormicose/complicações , Mucormicose/tratamento farmacológico , Adolescente , Criança , Pré-Escolar , Feminino , Neoplasias Hematológicas/imunologia , Humanos , Hospedeiro Imunocomprometido , Masculino , Mucor/efeitos dos fármacos , Mucor/imunologia , Mucor/isolamento & purificação , Mucorales/efeitos dos fármacos , Mucorales/imunologia , Mucorales/isolamento & purificação , Mucormicose/imunologia , Rhizopus oryzae/efeitos dos fármacos , Rhizopus oryzae/imunologia , Rhizopus oryzae/isolamento & purificação
13.
Int J Antimicrob Agents ; 56(6): 106182, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33045355

RESUMO

Colistin (CST) is a last-resort therapeutic option for carbapenem-resistant Klebsiella pneumoniae (CR-Kp) infections in critically ill patients. The effect of subinhibitory CST concentrations (sub-MICs) on biofilm formation is organism-dependent. We investigated the interactions between CST and innate immune cells against CR-Kp biofilms (CR-KpBF) by studying the effect of biofilm sub-MICs of CST on (i) damage induced by human polymorphonuclear neutrophils (PMNs) on CR-KpBF and (ii) the immunomodulatory potential on human mononuclear cells (MNCs) exposed to CR-KpBF. The impact of CST on PMN-induced biofilm damage was assessed by XTT reduction assay. Signal transduction and gene expression profiles in response to CST sub-MICs of MNCs exposed to CR-KpBF were studied by RT-PCR and multiplex ELISA. Pre-exposure of CR-Kp to 0.06 mg/L CST led to subsequent increased PMN-mediated biofilm damage against CR-KpBF in the presence of CST biofilm sub-MICs: there was an additive effect at 2, 4, 8 and 16 mg/L. However, the overall biofilm damage was not >52%. MNCs responded to CR-KpBF through Toll-like receptor 2 (TLR2) by 2.5-fold upregulation and NLRP3 inflammasome activation. CR-KpBF stimulated increased production of interleukin 1-beta (IL-1ß), tumour necrosis factor-alpha (TNFα), IL-8 and IL-6. In the combination treatment, 0.5 mg/L CST reduced IL-1ß, TNFα and IL-8 levels, whereas at 2 mg/L and 8 mg/L it increased the anti-inflammatory cytokine IL-10 (P < 0.05). Biofilm sub-MICs of CST enhance PMN killing capacity and attenuate production of inflammatory cytokines by MNCs exposed to CR-KpBF, playing a potentially important immunotherapeutic role especially for patients with cytokine deregulation.


Assuntos
Antibacterianos/farmacologia , Enterobacteriáceas Resistentes a Carbapenêmicos/efeitos dos fármacos , Colistina/farmacologia , Imunomodulação/efeitos dos fármacos , Klebsiella pneumoniae/imunologia , Biofilmes/efeitos dos fármacos , Enterobacteriáceas Resistentes a Carbapenêmicos/imunologia , Citocinas/efeitos dos fármacos , Citocinas/imunologia , Humanos , Infecções por Klebsiella/tratamento farmacológico , Klebsiella pneumoniae/efeitos dos fármacos , Klebsiella pneumoniae/isolamento & purificação , Testes de Sensibilidade Microbiana
14.
Diseases ; 8(3)2020 Aug 19.
Artigo em Inglês | MEDLINE | ID: mdl-32824956

RESUMO

Infections frequently complicate the treatment course in children with hematologic malignancies undergoing chemotherapy. Febrile neutropenia (FN) remains a major cause of hospital admissions in this population, and respiratory tract is often proven to be the site of infection even without respiratory signs and symptoms. Clinical presentation may be subtle due to impaired inflammatory response. Common respiratory viruses and bacteria are widely identified in these patients, while fungi and, less commonly, bacteria are the causative agents in more severe cases. A detailed history, thorough clinical and basic laboratory examination along with a chest radiograph are the first steps in the evaluation of a child presenting signs of a pulmonary infection. After stratifying patient's risk, prompt initiation of the appropriate empirical antimicrobial treatment is crucial and efficient for the majority of the patients. High-risk children should be treated with an intravenous antipseudomonal beta lactam agent, unless there is suspicion of multi-drug resistance when an antibiotic combination should be used. In unresponsive cases, more invasive procedures, including bronchoalveolar lavage (BAL), computed tomography (CT)-guided fine-needle aspiration or open lung biopsy (OLB), are recommended. Overall mortality rate can reach 20% with higher rates seen in cases unresponsive to initial therapy and those under mechanical ventilation.

15.
J Clin Oncol ; 38(27): 3205-3216, 2020 09 20.
Artigo em Inglês | MEDLINE | ID: mdl-32459599

RESUMO

PURPOSE: To develop a clinical practice guideline for systemic antifungal prophylaxis in pediatric patients with cancer and hematopoietic stem-cell transplantation (HSCT) recipients. METHODS: Recommendations were developed by an international multidisciplinary panel that included a patient advocate. We conducted a systematic review of systemic antifungal prophylaxis in children and adults with cancer and HSCT recipients. The Grading of Recommendations Assessment, Development, and Evaluation approach was used to make strong or weak recommendations and to classify level of evidence as high, moderate, low, or very low. The panel considered directness of the data to pediatric patients. RESULTS: There were 68 randomized trials included in the systematic review, of which 6 (9%) were conducted in a solely pediatric population. Strong recommendations were made to administer systemic antifungal prophylaxis to children and adolescents receiving treatment of acute myeloid leukemia, to those undergoing allogeneic HSCT pre-engraftment, and to those receiving systemic immunosuppression for graft-versus-host disease treatment. A strong recommendation was made to administer a mold-active agent with an echinocandin or a mold-active azole when systemic antifungal prophylaxis is warranted. For children younger than 13 years of age, an echinocandin, voriconazole, or itraconazole is suggested. Posaconazole may also be used in those age 13 years or older. A strong recommendation against routine administration of amphotericin as systemic antifungal prophylaxis was made. CONCLUSION: We developed a clinical practice guideline for systemic antifungal prophylaxis administration in pediatric patients with cancer and HSCT recipients. Implementation and assessment of guideline-concordant rates and impacts are important future steps.


Assuntos
Antibioticoprofilaxia , Antifúngicos/uso terapêutico , Transplante de Células-Tronco Hematopoéticas , Infecções Fúngicas Invasivas/prevenção & controle , Neoplasias/tratamento farmacológico , Adolescente , Criança , Pré-Escolar , Humanos , Terapia de Imunossupressão , Lactente , Recém-Nascido , Leucemia Mieloide Aguda/tratamento farmacológico , Seleção de Pacientes , Leucemia-Linfoma Linfoblástico de Células Precursoras/tratamento farmacológico , Revisões Sistemáticas como Assunto , Transplante Homólogo
16.
Expert Rev Anti Infect Ther ; 18(5): 461-474, 2020 05.
Artigo em Inglês | MEDLINE | ID: mdl-32213145

RESUMO

Introduction: Osteoarticular fungal infections (OAFIs) complicate the clinical course of high-risk patients, including immunosuppressed individuals. Their management, however, despite being intricate, is governed by evidence arising from sub-optimal quality research, such as case series. Guidelines are scarce and when present result in recommendations based on low quality evidence. Furthermore, the differences between the management of immunocompromised and immunocompetent patients are not distinct. This is a narrative review after a literature search in PubMed, up to November 2019.Areas covered: The major fungal groups causing osteomyelitis and/or arthritis are Candida spp., Aspergillus spp., non-Aspergillus filamentous fungi, non-Candida yeasts and endemic dimorphic fungi. Their epidemiology is briefly analyzed with emphasis on immunodeficiency and other risk factors. Management of OAFIs includes appropriate antifungal drug therapy (liposomal amphotericin B, triazoles or echinocandins), local surgery and immunotherapy for primary immunodeficiencies. Cessation of immunosuppressive drugs is also mandated.Expert opinion: Management of OAFIs includes affordable and available options and approaches. However, research on therapeutic practices is urgently required to be further improved, due to the rarity of affected patients. Evolution is expected to translate into novel antifungal drugs, less invasive and precise surgical approaches and targeted enhancement of immunoregulatory pathways in defense of challenging fungal pathogens.


Assuntos
Artrite Infecciosa/terapia , Micoses/terapia , Osteoartrite/terapia , Osteomielite/terapia , Antifúngicos/administração & dosagem , Artrite Infecciosa/microbiologia , Humanos , Hospedeiro Imunocomprometido , Imunossupressores/administração & dosagem , Imunossupressores/efeitos adversos , Imunoterapia/métodos , Micoses/microbiologia , Osteoartrite/microbiologia , Osteomielite/microbiologia , Fatores de Risco
17.
Pediatr Infect Dis J ; 39(2): 114-120, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-31725552

RESUMO

BACKGROUND: Data on Candida bloodstream infections in pediatric patients in Europe are limited. We performed a retrospective multicenter European study of the epidemiology and outcome of neonatal and pediatric candidemia. MATERIAL AND METHODS: All first positive blood cultures from patients ≤ 18 years of age with candidemia were registered. Patients' demographic and clinical characteristics and causative Candida species were collected and analyzed. Regression analysis was used to identify factors independently associated with mortality. RESULTS: One thousand three hundred ninety-five episodes of candidemia (57.8% male) were reported from 23 hospitals in 10 European countries. Of the 1395 episodes, 36.4% occurred in neonates (≤ 44 weeks postmenstrual age), 13.8% in infants (> 44 weeks postmenstrual age to 1 year) and 49.8% in children and adolescents. Candida albicans (52.5%) and Candida parapsilosis (28%) were the predominant species. A higher proportion of candidemia caused by C. albicans was observed among neonatal patients (60.2%) with highest rates of C. parapsilosis seen among infants (42%). Children admitted to hematology-oncology wards presented the highest rates of non-albicans Candida species. Candidemia because of C. albicans was more frequent than non-albicans Candida in Northern versus Southern Europe (odds ratio, 2.3; 95% confidence interval, 1.8-2.9; P < 0.001). The all-cause mortality at 30 days was 14.4%. All-cause mortality was higher among patients admitted to the neonatal or pediatric intensive care units than other wards. Over time, no significant changes in species distribution were observed. CONCLUSIONS: This first multicenter European study shows unique characteristics of the epidemiology of pediatric candidemia. The insights obtained from this study will be useful to guide clinical management and antifungal stewardship.


Assuntos
Candidemia/epidemiologia , Candidemia/etiologia , Adolescente , Fatores Etários , Candida/isolamento & purificação , Candidemia/diagnóstico , Criança , Pré-Escolar , Infecção Hospitalar , Suscetibilidade a Doenças , Europa (Continente)/epidemiologia , Feminino , Hospitalização , Humanos , Lactente , Recém-Nascido , Unidades de Terapia Intensiva Pediátrica , Masculino , Avaliação de Resultados da Assistência ao Paciente , Prognóstico , Vigilância em Saúde Pública , Estudos Retrospectivos , Medição de Risco , Fatores de Risco
18.
Curr HIV Res ; 18(1): 63-66, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-31644409

RESUMO

BACKGROUND: In resource-rich settings, the rate of mother-to-child transmission of human immunodeficiency virus (HIV) has dramatically decreased by virtue of a combination of preventive strategies during the last two decades. CASE PRESENTATION: We present a case of progressive developmental milestone loss in a toddler with previously unknown congenitally acquired human immunodeficiency virus (HIV) infection, complicated by an Epstein-Barr virus (EBV) coinfection. CONCLUSION: Our report underscores the differential diagnosis between HIV encephalopathy and EBV encephalitis and the vertical transmission of the HIV infection, which constitutes an alarming issue in terms of public health.


Assuntos
Encefalite/diagnóstico , Encefalite/virologia , Infecções por Vírus Epstein-Barr/patologia , Infecções por HIV/patologia , Transmissão Vertical de Doenças Infecciosas , Antirretrovirais/uso terapêutico , Pré-Escolar , Disartria/patologia , Disartria/virologia , Encefalite/patologia , Infecções por Vírus Epstein-Barr/complicações , Infecções por HIV/complicações , Infecções por HIV/tratamento farmacológico , HIV-1/isolamento & purificação , Herpesvirus Humano 4/isolamento & purificação , Humanos , Masculino
19.
Germs ; 10(4): 388-391, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-33489955

RESUMO

INTRODUCTION: Cryptococcal meningoencephalitis is a life-threatening disease affecting mainly immunocompromised hosts. CASE REPORT: We present a case of a 64-year-old immunocompetent patient, who initially developed a traumatic scalp skin infection due to Cryptococcus neoformans. The patient received oral fluconazole and subsequently liposomal amphotericin B due to the development of resistance with resolution of the infection. Two years later, during chemotherapy for newly diagnosed gastric and lung cancer, he developed fulminant cryptococcal meningoencephalitis, which did not respond to liposomal amphotericin B and flucytosine. CONCLUSIONS: To our knowledge, this is the first case of fulminant cryptococcal meningoencephalitis following long latency after adequately treated primary cutaneous infection.

20.
Med Mycol Case Rep ; 25: 10-14, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-31245270

RESUMO

Mucormycosis is a rare but potentially mortal opportunistic infection caused by Mucorales. We present a case of rhinoorbital mucormycosis in an 11-year old male with neuroblastoma successfully treated with aggressive surgical debridement and antifungal combination of liposomal amphotericin B and posaconazole. Our patient developed signs of paranasal sinus infection and culture of fine needle biopsy grew Rhizopus arrhizus. Prompt treatment and drastic surgical resection led to complete clinical and radiological recovery without evidence of mucormycosis relapse.

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