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1.
Br J Haematol ; 204(3): 1061-1066, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-37671902

RESUMEN

Acute chest syndrome (ACS) is a frequent cause of hospitalization in sickle cell disease (SCD). Despite advances in acute care, many settings still lack knowledge about ACS best practices. After the AIEOP Guidelines were published in 2012, suggesting standardized management in Italy, a retrospective study was performed to assess the diagnostic and therapeutic pathways of ACS in children. From 2013 to 2018, 208 ACS episodes were presented by 122/583 kids in 11 centres. 73 were male, mean age 10.9 years, 85% African, 92% HbSS or Sß°. In our hub-and-spoke system, a good adherence to Guidelines was documented, but discrepancies between reference centres and general hospitals were noted. Improvement is needed for timely transfer to reference centres, use of incentive spirometry, oxygen therapy and pain management.


Asunto(s)
Síndrome Torácico Agudo , Anemia de Células Falciformes , Niño , Humanos , Masculino , Femenino , Estudios Retrospectivos , Anemia de Células Falciformes/tratamiento farmacológico , Hemoglobina Falciforme , Hospitalización
2.
Blood Cells Mol Dis ; 108: 102860, 2024 May 29.
Artículo en Inglés | MEDLINE | ID: mdl-38889660

RESUMEN

Acquired aplastic anemia (AA) is a rare heterogeneous disorder characterized by pancytopenia and hypoplastic bone marrow. The incidence is 2-3 per million population per year in the Western world, but 3 times higher in East Asia. Survival in severe aplastic anemia (SAA) has improved significantly due to advances in hematopoietic stem cell transplantation (HSCT), immunosuppressive therapy, biologic agents, and supportive care. In SAA, HSCT from a matched sibling donor (MSD) is the first-line treatment. If a MSD is not available, options include immunosuppressive therapy (IST), matched unrelated donor, or haploidentical HSCT. The purpose of this guideline is to provide health care professionals with clear guidance on the diagnosis and management of pediatric patients with AA. A preliminary evidence-based document prepared by a group of pediatric hematologists of the Bone Marrow Failure Study Group of the Italian Association of Pediatric Hemato-Oncology (AIEOP) was discussed, modified and approved during a series of consensus conferences that started online during COVID 19 and continued in the following years, according to procedures previously validated by the AIEOP Board of Directors.

3.
Artículo en Inglés | MEDLINE | ID: mdl-31871077

RESUMEN

We analyzed the use of isavuconazole (ISA) as treatment or prophylaxis for invasive fungal disease (IFD) in children with hemato-oncologic diseases. A multicentric retrospective analysis was performed among centers belonging to the Italian Association for Pediatric Hematology and Oncology (AIEOP). Pharmacokinetic (PK) monitoring was applied by a high-performance liquid chromatography-tandem mass spectrometry (HLPC-MS/MS) assay. Twenty-nine patients were studied: 10 during chemotherapy and 19 after allogeneic hematopoietic stem cell transplantation (HSCT). The patients consisted of 20 males and 9 females with a median age of 14.5 years (age range, 3 to 18 years) and a median body weight of 47 kg (body weight range, 15 to 80 kg). ISA was used as prophylaxis in 5 patients and as treatment in 24 cases (20 after therapeutic failure, 4 as first-line therapy). According to European Organization for Research and Treatment of Cancer (EORTC) criteria, we registered 5 patients with proven IFD, 9 patients with probable IFD, and 10 patients with possible IFD. Patients with a body weight of <30 kg received half the ISA dose; the others received ISA on the adult schedule (a 200-mg loading dose every 8 h on days 1 and 2 and a 200-mg/day maintenance dose); for all but 10 patients, the route of administration switched from the intravenous route to the oral route during treatment. ISA was administered for a median of 75.5 days (range, 6 to 523 days). The overall response rate was 70.8%; 12 patients with IFD achieved complete remission, 5 achieved partial remission, 5 achieved progression, and 3 achieved stable IFD. No breakthrough infections were registered. PK monitoring of 17 patients revealed a median ISA steady-state trough concentration of 4.91 mg/liter (range, 2.15 to 8.54 mg/liter) and a concentration/dose (in kilograms) ratio of 1.13 (range, 0.47 to 3.42). Determination of the 12-h PK profile was performed in 6 cases. The median area under the concentration-time curve from 0 to 12 h was 153.16 mg·h/liter (range, 86.31 to 169.45 mg·h/liter). Common Terminology Criteria for Adverse Events grade 1 to 3 toxicity (increased transaminase and/or creatinine levels) was observed in 6 patients, with no drug-drug interactions being seen in patients receiving immunosuppressants. Isavuconazole may be useful and safe in children with hemato-oncologic diseases, even in the HSCT setting. Prospective studies are warranted.


Asunto(s)
Antifúngicos/farmacocinética , Neoplasias Hematológicas/terapia , Trasplante de Células Madre Hematopoyéticas , Infecciones Fúngicas Invasoras/tratamiento farmacológico , Nitrilos/farmacocinética , Piridinas/farmacocinética , Triazoles/farmacocinética , Administración Intravenosa , Administración Oral , Adolescente , Antifúngicos/sangre , Antifúngicos/farmacología , Aspergillus/efectos de los fármacos , Aspergillus/crecimiento & desarrollo , Niño , Preescolar , Esquema de Medicación , Femenino , Neoplasias Hematológicas/microbiología , Neoplasias Hematológicas/patología , Humanos , Infecciones Fúngicas Invasoras/microbiología , Infecciones Fúngicas Invasoras/patología , Masculino , Pruebas de Sensibilidad Microbiana , Mucor/efectos de los fármacos , Mucor/crecimiento & desarrollo , Nitrilos/sangre , Nitrilos/farmacología , Penicillium/efectos de los fármacos , Penicillium/crecimiento & desarrollo , Piridinas/sangre , Piridinas/farmacología , Estudios Retrospectivos , Trasplante Homólogo , Triazoles/sangre , Triazoles/farmacología
4.
Mycoses ; 62(3): 252-260, 2019 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-30565742

RESUMEN

Invasive fungal infections (IFI) of the Central Nervous System (IFI-CNS) and Paranasal Sinuses (IFI-PS) are rare, life-threatening infections in haematologic patients, and their management remains a challenge despite the availability of new diagnostic techniques and novel antifungal agents. In addition, analyses of large cohorts of patients focusing on these rare IFI are still lacking. Between January 2010 and December 2016, 89 consecutive cases of Proven (53) or Probable (36) IFI-CNS (71/89) and IFI-PS (18/89) were collected in 34 haematological centres. The median age was 40 years (range 5-79); acute leukaemia was the most common underlying disease (69%) and 29% of cases received a previous allogeneic stem cell transplant. Aspergillus spp. were the most common pathogens (69%), followed by mucormycetes (22%), Cryptococcus spp. (4%) and Fusarium spp. (2%). The lung was the primary focus of fungal infection (48% of cases). The nervous system biopsy was performed in 10% of IFI-CNS, and a sinus biopsy was performed in 56% of IFI-PS (P = 0.03). The Galactomannan test on cerebrospinal fluid has been performed in 42% of IFI-CNS (30/71), and it was positive in 67%. Eighty-four pts received a first-line antifungal therapy with Amphotericine B in 58% of cases, Voriconazole in 31% and both in 11%. Moreover, 58% of patients received 2 or more lines of therapy and 38% were treated with a combination of 2 or more antifungal drugs. The median duration of antifungal therapy was 60 days (range 5-835). A surgical intervention was performed in 26% of cases but only 10% of IFI-CNS underwent neurosurgical intervention. The overall response rate to antifungal therapy (complete or partial response) was 57%, and 1-year overall survival was 32% without significant differences between IFI-CNS and IFI-PS. The overall mortality was 69% but the IFI attributable mortality was 33%. Mortality of IFI-CNS/PS remains high but, compared to previous historical data, it seems to be reduced probably due to the availability of newer antifungal drugs. The results arising from this large contemporary cohort of cases may allow a more effective diagnostic and therapeutic management of these very rare IFI complications in haematologic patients.


Asunto(s)
Antifúngicos/uso terapéutico , Infecciones Fúngicas del Sistema Nervioso Central/epidemiología , Desbridamiento , Hongos/clasificación , Hongos/aislamiento & purificación , Neoplasias Hematológicas/complicaciones , Sinusitis/epidemiología , Adolescente , Adulto , Anciano , Infecciones Fúngicas del Sistema Nervioso Central/microbiología , Infecciones Fúngicas del Sistema Nervioso Central/terapia , Líquido Cefalorraquídeo/microbiología , Niño , Preescolar , Estudios Epidemiológicos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Senos Paranasales/microbiología , Sinusitis/microbiología , Sinusitis/terapia , Análisis de Supervivencia , Resultado del Tratamiento , Adulto Joven
5.
Ann Hematol ; 97(9): 1717-1726, 2018 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-29705860

RESUMEN

Infections by multidrug-resistant (MDR) bacteria are a worrisome phenomenon in hematological patients. Data on the incidence of MDR colonization and related bloodstream infections (BSIs) in haematological patients are scarce. A multicentric prospective observational study was planned in 18 haematological institutions during a 6-month period. All patients showing MDR rectal colonization as well as occurrence of BSI at admission were recorded. One-hundred forty-four patients with MDR colonization were observed (6.5% of 2226 admissions). Extended spectrum beta-lactamase (ESBL)-producing (ESBL-P) enterobacteria were observed in 64/144 patients, carbapenem-resistant (CR) Gram-negative bacteria in 85/144 and vancomycin-resistant enterococci (VREs) in 9/144. Overall, 37 MDR-colonized patients (25.7%) developed at least one BSI; 23 of them (62.2%, 16% of the whole series) developed BSI by the same pathogen (MDRrel BSI), with a rate of 15.6% (10/64) for ESBL-P enterobacteria, 14.1% (12/85) for CR Gram-negative bacteria and 11.1% (1/9) for VRE. In 20/23 cases, MDRrel BSI occurred during neutropenia. After a median follow-up of 80 days, 18 patients died (12.5%). The 3-month overall survival was significantly lower for patients colonized with CR Gram-negative bacteria (83.6%) and VRE (77.8%) in comparison with those colonized with ESBL-P enterobacteria (96.8%). CR-rel BSI and the presence of a urinary catheter were independent predictors of mortality. MDR rectal colonization occurs in 6.5% of haematological inpatients and predicts a 16% probability of MDRrel BSI, particularly during neutropenia, as well as a higher probability of unfavourable outcomes in CR-rel BSIs. Tailored empiric antibiotic treatment should be decided on the basis of colonization.


Asunto(s)
Bacteriemia/epidemiología , Infecciones Bacterianas/epidemiología , Farmacorresistencia Bacteriana Múltiple , Neoplasias Hematológicas/complicaciones , Neoplasias Hematológicas/epidemiología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Bacteriemia/microbiología , Infecciones Bacterianas/sangre , Infecciones Bacterianas/complicaciones , Infecciones Bacterianas/microbiología , Infecciones Relacionadas con Catéteres/epidemiología , Niño , Preescolar , Femenino , Neoplasias Hematológicas/microbiología , Humanos , Lactante , Recién Nacido , Masculino , Persona de Mediana Edad , Adulto Joven
6.
Transpl Infect Dis ; 17(4): 558-65, 2015 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-25953418

RESUMEN

BACKGROUND: Central line-associated bloodstream infection (CLABSI) is one of the most common infectious complications after hematopoietic stem cell transplantation. To prevent this complication, international guidelines recommend the implementation of the CLABSI 'prevention bundle' consisting of hand hygiene, full barrier precautions, cleaning the insertion site with chlorhexidine, avoiding femoral sites for insertion, and removing unnecessary catheters. The aim of this survey was to analyze to what extent European Group for Blood and Marrow Transplantation (EBMT) centers have included the CLABSI prevention bundle in practice. METHODS: A questionnaire used for data collection was sent to the 545 EBMT centers worldwide, 103 of which responded. RESULTS: All 5 components of the CLABSI prevention bundle were recorded in 28% of the centers' standard operating procedures (SOP), and 21% of the centers answered that they used all of the bundle components in clinical practice. The most common recommendation absent from the SOP was specification of all the components of full barrier precautions (43% of the centers did not include at least 1 component). Skin disinfection with chlorhexidine before catheter insertion was reported by 66% centers. CLABSI rates were monitored in 21% of centers. CONCLUSIONS: Although most of the centers lacked 1 or more of the CLABSI prevention bundle components in their SOP, improvements could easily be made by updating the centers' SOP. The first important step is introduction of CLABSI rate monitoring in this high-risk patient population.


Asunto(s)
Infecciones Relacionadas con Catéteres/prevención & control , Cateterismo Venoso Central/efectos adversos , Infección Hospitalaria/prevención & control , Adhesión a Directriz/estadística & datos numéricos , Trasplante de Células Madre Hematopoyéticas , Control de Infecciones/métodos , Estudios Transversales , Europa (Continente) , Encuestas de Atención de la Salud , Humanos , Control de Infecciones/normas , Control de Infecciones/estadística & datos numéricos , Guías de Práctica Clínica como Asunto , Encuestas y Cuestionarios
7.
Mycoses ; 57(6): 342-50, 2014 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-24373120

RESUMEN

UNLABELLED: This multicentre observational study evaluated the feasibility, efficacy and toxicity of antifungal combination therapy (combo) as treatment of proven or probable invasive fungal diseases (IFDs) in patients with haematological malignancies. Between January 2005 and January 2010, 84 cases of IFDs (39 proven and 45 probable) treated with combo were collected in 20 Hematological Italian Centres, in patients who underwent chemotherapy or allogeneic haematopoietic stem cell transplantation for haematological diseases. Median age of patients was 34 years (range 1-73) and 37% had less than 18 years. Acute leukaemia was the most common underlying haematological disease (68/84; 81%). The phase of treatment was as follows: first induction in 21/84 (25%), consolidation phase in 18/84 (21%) and reinduction/salvage in 45/84 (54%). The main site of infection was lung with or without other sites. The principal fungal pathogens were as follows: Aspergillus sp. 68 cases (81%), Candida sp. six cases (8%), Zygomycetes four cases (5%) and Fusarium sp. four cases (5%). The most used combo was caspofungin+voriconazole 35/84 (42%), caspofungin + liposomal amphotericin B (L-AmB) 20/84 (24%) and L-AmB+voriconazole 15/84 (18%). The median duration of combo was 19 days (range 3-180). The overall response rate (ORR) was 73% (61/84 responders) without significant differences between the combo regimens. The most important factor that significantly influenced the response was granulocyte (PMN) recovery (P 0.009). Only one patient discontinued therapy (voriconazole-related neurotoxicity) and 22% experienced mild and reversible adverse events (hypokalaemia, ALT/AST increase and creatinine increase). The IFDs-attributable mortality was 17%. This study indicates that combo was both well tolerated and effective in haematological patients. The most used combo regimens were caspofungin + voriconazole (ORR 80%) and caspofungin + L-AmB (ORR 70%). The ORR was 73% and the mortality IFD related was 17%. PMN recovery during combo predicts a favourable outcome. CLINICAL TRIALS REGISTRATION: NCT00906633.


Asunto(s)
Antifúngicos/efectos adversos , Antifúngicos/uso terapéutico , Neoplasias Hematológicas/complicaciones , Micosis/tratamiento farmacológico , Adolescente , Adulto , Anciano , Niño , Preescolar , Quimioterapia Combinada/efectos adversos , Quimioterapia Combinada/métodos , Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos/epidemiología , Efectos Colaterales y Reacciones Adversas Relacionados con Medicamentos/patología , Femenino , Humanos , Incidencia , Lactante , Italia , Masculino , Persona de Mediana Edad , Análisis de Supervivencia , Resultado del Tratamiento , Adulto Joven
8.
Ann Hematol ; 92(10): 1405-12, 2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23771477

RESUMEN

In the last 30 years, the use of long-term central venous catheters (CVC) is increased especially for children with hemato-oncological disorders. However, the use of CVC is associated to complications, as mechanical accidents, thrombosis, and infections that can determine a prolongation of hospital stay, an increase of costs, and sometimes life-threatening conditions that require urgent systemic treatment or CVC removal. CVC removal may be troublesome especially in neonates, infants, or any other "highly needed CVC patients"; in these selected cases, the prevention and treatment of CVC-related complications play a pivotal role and specific surveillance programs are crucial. While extensive literature is focused on CVC management in adults, no guidelines are available for children. To this aim, the first recommendations for the management of CVC infectious complication in pediatric age have been written after pediatric and adult literature review and collegial discussion among members of Supportive Therapy working group of Italian Association of Pediatric Hematology and Oncology. Compared to the adult age, the necessity of peripheral vein cultures for the diagnosis of CVC-related infection remains controversial in children because of the poorer venous asset and a conservative, pharmacologically focused management through CVC remains mandatory, with CVC removal to be performed only in selected cases.


Asunto(s)
Infecciones Relacionadas con Catéteres/prevención & control , Cateterismo Venoso Central/efectos adversos , Catéteres de Permanencia/efectos adversos , Humanos , Trombosis/prevención & control
9.
Transpl Infect Dis ; 15(3): 251-8, 2013 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23465046

RESUMEN

BACKGROUND: The developments of peripheral blood stem cells in autologous hematopoietic stem cell transplantation (auto-HCT), and of reduced-intensity conditioning (RIC) regimens in allogeneic HCT (allo-HCT), have considerably changed the transplant approach. Prolonged neutropenia combined with severe mucosal damage and organ dysfunction is no longer the rule in the early post-HCT pancytopenic phase. Although strict isolation during pancytopenia was followed by most HCT units in the past, this may not be the current practice. METHODS: In 2008, a questionnaire was sent out to the 463 European Group for Blood and Marrow Transplantation centers, enquiring about their current environmental protection procedures; 89 (20%) returned the questionnaire. RESULTS: Most centers housed auto-HCT recipients in high-efficiency particulate air (HEPA)-filtered rooms without (52%) or with laminar air flow (LAF) (29%) after total body irradiation (TBI), whereas HEPA-filtered rooms were used in 53% of auto-HCT conditioned without TBI. During the initial pancytopenic phase after allo-HCT, patients were housed in HEPA/LAF rooms in 50% and 42% of the centers, if a high-dose myeloablative conditioning regimen or a RIC regimen was used, respectively. Surprisingly, 8-24% of the centers reported that no isolation procedures were used in patients colonized or infected with highly transmissible pathogens (i.e., Clostridium difficile, respiratory viruses, and varicella zoster virus). CONCLUSION: In conclusion, universal recommendations for infected or colonized patients may be poorly known or applied in many HCT units.


Asunto(s)
Control de Enfermedades Transmisibles/métodos , Encuestas Epidemiológicas , Trasplante de Células Madre Hematopoyéticas/efectos adversos , Control de Infecciones/métodos , Filtros de Aire , Humanos , Aislamiento de Pacientes , Habitaciones de Pacientes , Guías de Práctica Clínica como Asunto
10.
Blood Rev ; 45: 100730, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-32654893

RESUMEN

In women with premature ovarian insufficiency (POI), hormonal therapy (HT) is indicated to decrease the risk of morbidity and to treat symptoms related to prolonged hypoestrogenism. While general recommendations for the management of HT in adults with POI have been published, no systematic suggestions focused on girls, adolescents and young women with POI following gonadotoxic treatments (chemotherapy, radiotherapy, stem cell transplantation) administered for pediatric cancer are available. In order to highlight the challenging issues specifically involving this cohort of patients and to provide clinicians with the proposal of practical therapeutic protocol, we revised the available literature in the light of the shared experience of a multidisciplinary team of pediatric oncologists, gynecologists and endocrinologists. We hereby present the proposals of a practical scheme to induce puberty in prepubertal girls and a decisional algorithm that should guide the clinician in approaching HT in post-pubertal adolescents and young women with iatrogenic POI.


Asunto(s)
Terapia de Reemplazo de Hormonas , Insuficiencia Ovárica Primaria/etiología , Insuficiencia Ovárica Primaria/terapia , Traumatismos por Radiación/etiología , Traumatismos por Radiación/terapia , Adolescente , Niño , Toma de Decisiones Clínicas , Manejo de la Enfermedad , Susceptibilidad a Enfermedades , Femenino , Terapia de Reemplazo de Hormonas/métodos , Humanos , Pubertad
11.
PLoS One ; 15(9): e0237502, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32956377

RESUMEN

Employing an integrated approach to investigate the use of Late Lower Paleolithic flint tools found at the site of Qesem Cave (Israel), we revealed a particular trace pattern related to the employment of ashes at the site. Using a designated collection of replica items and combining use-wear and residue (morphological analysis, FTIR, SEM-EDX) analyses, we revealed the intentional use of ashes in preserving foods for delayed consumption as well as hide for delayed processing. Our interpretation, we believe is the most plausible one since we were able to delineate the specific use-wear fingerprints of the intentional use of ashes for such purposes, suggesting that our approach might be useful for the recognition of other similar functional-behavioral patterns. Lastly, in support of previous findings at Qesem Cave, our current findings present evidence for the processing of organic matters intentionally mixed with ash, leading us to suggest that the inhabitants of Qesem Cave were proficient not only in the habitual use of fire but also of its main by-product, ash. Hence, we call for a reassessment of the timeline currently assigned to hominins' utilization of ash for storing and processing vegetal foods and hide.


Asunto(s)
Cuevas , Incendios/historia , Animales , Arqueología/métodos , Manipulación de Alimentos/historia , Historia Antigua , Hominidae , Israel , Espectroscopía Infrarroja por Transformada de Fourier/métodos , Comportamiento del Uso de la Herramienta
12.
Bone Marrow Transplant ; 41(4): 363-70, 2008 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-17982496

RESUMEN

We investigated the incidence, risk factors and outcome of haemorrhagic cystitis (HC) in paediatric patients undergoing HSCT and the predictive value of BK viruria and viraemia for developing HC. Over a period of 54 months, 74 patients were recruited. The cumulative incidence of HC was 22%. Among 15 patients prospectively monitored for BK viruria and viraemia, four patients developed HC of grade > or =II. This group, which had two consecutive BK positive samples, showed a sensitivity of 100%, a specificity of 82%, a positive predictive value of 67%, and negative predictive value of 100% for developing HC. Analysed by a receiver-operator characteristic curve (ROC), a urine BK load >9 x 10(6) genomic copies/ml had a sensitivity of 95% and specificity of 90%; while a blood BK load >1 x 10(3) genomic copies/ml had a sensitivity of 40% and a specificity of 93% for HC, respectively. In univariate analysis, BK positivity was the only factor significantly associated with HC. After a median follow-up of 1.8 years, patients with HC showed a lower overall survival, 40 vs 65%, P 0.01, and a lower event-free survival, 42 vs 62%, P 0.03, compared to patients without HC. We conclude that BK detection in urine and/or plasma is a specific predictor for developing HC.


Asunto(s)
Virus BK/patogenicidad , Cistitis/virología , Trasplante de Células Madre Hematopoyéticas/efectos adversos , Infecciones por Polyomavirus/complicaciones , Infecciones Tumorales por Virus/complicaciones , Adolescente , Niño , Preescolar , Cistitis/epidemiología , Cistitis/fisiopatología , Supervivencia sin Enfermedad , Femenino , Humanos , Incidencia , Lactante , Italia/epidemiología , Masculino , Infecciones por Polyomavirus/epidemiología , Estudios Prospectivos , Trasplante Homólogo/efectos adversos , Infecciones Tumorales por Virus/epidemiología , Carga Viral , Viremia
13.
Mycoses ; 51(6): 497-504, 2008 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-18331444

RESUMEN

A reliable diagnosis of invasive aspergillosis (IA) is hampered by the difficulty in obtaining suitable tissue samples. To evaluate the sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) of the LightCycler PCR for the diagnosis of IA, 536 blood samples were collected over a 22-month period from 62 paediatric patients (median age 10 years, range 1-18) considered at risk of IA. The galactomannan antigen (GM) and fungal DNA were assessed on serial blood samples. IA was diagnosed in eight of 62 patients (13%): proven, five, probable, three. Sensitivity, specificity, PPV and NPV of LightCycler PCR varied according to the number of positive samples used to define positivity: 88%; 37%; 17% and 95% for single sample positivity; and 63%, 81%, 33% and 94% for serial sample positivity respectively. The concordance between positivity of LightCycler PCR assay and the diagnosis of IA was 79%. The single positivity of LightCycler PCR assay showed a good sensitivity for the diagnosis of IA in paediatric patients. The high NPV makes LightCycler PCR a promising tool in addition to GM testing to design a strategy of pre-emptive antifungal therapy, although further validation studies are needed.


Asunto(s)
Aspergilosis/diagnóstico , Neoplasias Hematológicas/complicaciones , Reacción en Cadena de la Polimerasa/métodos , Adolescente , Niño , Preescolar , ADN de Hongos/sangre , Femenino , Galactosa/análogos & derivados , Humanos , Lactante , Masculino , Mananos/sangre , Valor Predictivo de las Pruebas , Sensibilidad y Especificidad
14.
Bone Marrow Transplant ; 53(2): 138-145, 2018 02.
Artículo en Inglés | MEDLINE | ID: mdl-28759025

RESUMEN

The advances in hematopoietic cell transplantation (HCT) over the last decade have led to a transplant-related mortality below 15%. Hepatic sinusoidal obstruction syndrome/veno-occlusive disease (SOS/VOD) is a life-threatening complication of HCT that belongs to a group of diseases increasingly identified as transplant-related, systemic endothelial diseases. In most cases, SOS/VOD resolves within weeks; however, severe SOS/VOD results in multi-organ dysfunction/failure with a mortality rate >80%. A timely diagnosis of SOS/VOD is of critical importance, given the availability of therapeutic options with favorable tolerability. Current diagnostic criteria are used for adults and children. However, over the last decade it has become clear that SOS/VOD is significantly different between the age groups in terms of incidence, genetic predisposition, clinical presentation, prevention, treatment and outcome. Improved understanding of SOS/VOD and the availability of effective treatment questions the use of the Baltimore and Seattle criteria for diagnosing SOS/VOD in children. The aim of this position paper is to propose new diagnostic and severity criteria for SOS/VOD in children on behalf of the European Society for Blood and Marrow Transplantation.


Asunto(s)
Enfermedad Veno-Oclusiva Hepática/clasificación , Enfermedad Veno-Oclusiva Hepática/diagnóstico , Europa (Continente) , Femenino , Enfermedad Veno-Oclusiva Hepática/patología , Humanos , Incidencia , Masculino , Factores de Riesgo , Resultado del Tratamiento
15.
J Med Genet ; 43(4): 315-25, 2006 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-16118345

RESUMEN

BACKGROUND: Osteopetrosis, a genetic disease characterised by osteoclast failure, is classified into three forms: infantile malignant autosomal recessive osteopetrosis (ARO), intermediate autosomal recessive osteopetrosis (IRO), and autosomal dominant osteopetrosis (ADO). METHODS: We studied 49 patients, 21 with ARO, one with IRO, and 27 with type II ADO (ADO II). RESULTS: Most ARO patients bore known or novel (one case) ATP6i (TCIRG1) gene mutations. Six ADO II patients had no mutations in ClCN7, the only so far recognised gene implicated, suggesting involvement of yet unknown genes. Identical ClCN7 mutations produced differing phenotypes with variable degrees of severity. In ADO II, serum tartrate resistant acid phosphatase was always elevated. Bone alkaline phosphatase (BALP) was generally low, but osteocalcin was high, suggesting perturbed osteoblast differentiation or function. In contrast, BALP was high in ARO patients. Elevated osteoclast surface/bone surface was noted in biopsies from most ARO patients. Cases with high osteoclasts also showed increased osteoblast surface/bone surface. ARO osteoclasts were morphologically normal, with unaltered formation rates, intracellular pH handling, and response to acidification. Their resorption activity was greatly reduced, but not abolished. In control osteoclasts, all resorption activity was abolished by combined inhibition of proton pumping and sodium/proton antiport. CONCLUSIONS: These findings provide a rationale for novel therapies targeting pH handling mechanisms in osteoclasts and their microenvironment.


Asunto(s)
Canales de Cloruro/genética , Osteopetrosis/diagnóstico , Osteopetrosis/genética , ATPasas de Translocación de Protón Vacuolares/genética , Adolescente , Adulto , Fosfatasa Alcalina/sangre , Resorción Ósea/metabolismo , Resorción Ósea/patología , Niño , Preescolar , Canales de Cloruro/química , Femenino , Genotipo , Humanos , Concentración de Iones de Hidrógeno , Masculino , Osteocalcina/sangre , Osteoclastos/patología , Osteoclastos/fisiología , Osteopetrosis/terapia , Monoéster Fosfórico Hidrolasas/sangre , Intercambiadores de Sodio-Hidrógeno/fisiología
16.
Bone Marrow Transplant ; 52(2): 191-196, 2017 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-27819687

RESUMEN

Hematopoietic stem cell transplantation (HSCT) is used with increasing frequency in Europe with 40 000 transplants reported in 2014. Transplant-related mortality remains high in allogeneic HSCT (10-20%); high-dose chemotherapy is toxic and demanding for patients. Drug development is accelerating and with limited toxicity of some targeted drugs may replace HSCT, whereas others may function as a 'bridge to transplant'. We analyzed HSCT reported to the activity survey for selected diseases in which major advances in drug development have been made. Tyrosine kinase inhibitors markedly changed the number of allogeneic HSCT in early CML. In myelodysplastic syndromes, hypomethylating agents show no effect on HSCT activity and Janus kinase inhibitors for myeloproliferative neoplasm appear to have only a temporary effect. For CLL autologous HSCT decreased after publication of trials showing improved PFS but no overall survival advantage and allogeneic rates are dropping after the introduction of Bruton kinase and PI3K Inhibitors. Whether these are 'game changers' as was imatinib for CML requires additional follow-up. For myeloma, proteasome inhibitors and new immunomodulatory drugs do not appear to impact transplant rates. Drug development data show different effects on HSCT use; highly effective drugs may replace HSCT, whereas other drugs may improve the patient's condition to allow for HSCT.


Asunto(s)
Antineoplásicos/administración & dosificación , Descubrimiento de Drogas , Neoplasias Hematológicas/terapia , Trasplante de Células Madre Hematopoyéticas , Aloinjertos , Europa (Continente) , Femenino , Humanos , Masculino , Sociedades Médicas
17.
Clin Transl Oncol ; 19(1): 76-83, 2017 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-27041689

RESUMEN

INTRODUCTION: SIOPEN INES protocol yielded excellent 5-year survival rates for MYCN-non-amplified metastatic neuroblastoma. Patients deemed ineligible due to lack or delay of MYCN status or late registration were treated, but not included in the study. Our goal was to analyse survival at 10 years among the whole population. MATERIALS AND METHODS: Italian and Spanish metastatic INES patients' data are reported. SPSS 20.0 was used for statistical analysis. RESULTS: Among 98 infants, 27 had events and 19 died, while 79 were disease free. Five- and 10-year event-free survival (EFS) were 73 and 70 %, and overall survival (OS) was 81 and 74 %, respectively. MYCN status was significant for EFS, but not for OS in multivariate analysis. CONCLUSIONS: The survival rates of patients who complied with all the inclusion criteria for INES trials are higher compared to those that included also not registered patients. Five-year EFS and OS for INES 99.2 were 87.8 and 95.7 %, while our stage 4s population obtained 78 and 87 %. Concerning 99.3, 5-year EFS and OS were 86.7 and 95.6 %, while for stage 4 we registered 61 and 68 %. MYCN amplification had a strong impact on prognosis and therefore we consider it unacceptable that many patients were not studied for MYCN and probably inadequately treated. Ten-year survival rates were shown to decrease: EFS from 73 to 70 % and OS from 81 to 74 %, indicating a risk of late events, particularly in stage 4s. Population-based registries like European ENCCA WP 11-task 11 will possibly clarify these data.


Asunto(s)
Biomarcadores de Tumor/genética , Ensayos Clínicos como Asunto , Amplificación de Genes , Proteína Proto-Oncogénica N-Myc/genética , Neuroblastoma/mortalidad , Niño , Preescolar , Terapia Combinada , Femenino , Estudios de Seguimiento , Humanos , Lactante , Recién Nacido , Masculino , Estadificación de Neoplasias , Neuroblastoma/genética , Neuroblastoma/secundario , Neuroblastoma/terapia , Pronóstico , Tasa de Supervivencia
19.
Bone Marrow Transplant ; 51(6): 786-92, 2016 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-26901709

RESUMEN

A record number of 40 829 hematopoietic stem cell transplantation (HSCT) in 36 469 patients (15 765 allogeneic (43%), 20 704 autologous (57%)) were reported by 656 centers in 47 countries to the 2014 survey. Trends include: continued growth in transplant activity, more so in Eastern European countries than in the west; a continued increase in the use of haploidentical family donors (by 25%) and slower growth for unrelated donor HSCT. The use of cord blood as a stem cell source has decreased again in 2014. Main indications for HSCT were leukemias: 11 853 (33%; 96% allogeneic); lymphoid neoplasias; 20 802 (57%; 11% allogeneic); solid tumors; 1458 (4%; 3% allogeneic) and non-malignant disorders; 2203 (6%; 88% allogeneic). Changes in transplant activity include more allogeneic HSCT for AML in CR1, myeloproliferative neoplasm (MPN) and aplastic anemia and decreasing use in CLL; and more autologous HSCT for plasma cell disorders and in particular for amyloidosis. In addition, data on numbers of teams doing alternative donor transplants, allogeneic after autologous HSCT, autologous cord blood transplants are presented.


Asunto(s)
Trasplante de Células Madre Hematopoyéticas/estadística & datos numéricos , Encuestas y Cuestionarios , Amiloidosis/terapia , Anemia Aplásica/terapia , Trasplante de Células Madre de Sangre del Cordón Umbilical/estadística & datos numéricos , Europa (Continente) , Trasplante de Células Madre Hematopoyéticas/métodos , Trasplante de Células Madre Hematopoyéticas/tendencias , Humanos , Neoplasias/terapia , Grupo de Atención al Paciente/estadística & datos numéricos , Grupo de Atención al Paciente/tendencias , Donantes de Tejidos/estadística & datos numéricos , Trasplante Autólogo , Trasplante Haploidéntico , Trasplante Homólogo
20.
Bone Marrow Transplant ; 51(3): 418-23, 2016 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-26501769

RESUMEN

Historically, invasive aspergillosis (IA) has been a major barrier for allogeneic hematopoietic stem cell transplantation (allo-HSCT). The influence of invasive IA on long-term survival and on transplant-related complications has not been investigated in a larger patient cohort under current conditions. Our aim was to analyze the long-term outcome of patients undergoing allo-HSCT with a history of prior IA. We used European Society for Blood and Marrow Transplantation database data of first allo-HSCTs performed between 2005 and 2010 in patients with acute leukemia. One thousand one hundred and fifty patients with data on IA before allo-HSCT were included in the analysis. The median follow-up time was 52.1 months. We found no significant impact of IA on major transplant outcome variables such as overall survival, relapse-free survival, non-relapse mortality, cumulative incidence of acute GvHD grade II-IV, chronic GvHD, pulmonary complications and leukemia relapse. However, we found a trend toward lower overall survival (P=0.078, hazard ratio (HR) (95% confidence interval (CI)): 1.16 (0.98, 1.36)) and higher non-relapse mortality (P=0.150, HR (95% CI): 1.19 (0.94, 1.50)) in allo-HSCT recipients with pre-existing IA. Our data suggest that a history of IA should not generally be a contraindication when considering the performance of allo-HSCT in patients with acute leukemia.


Asunto(s)
Aspergilosis , Trasplante de Células Madre Hematopoyéticas , Leucemia , Enfermedad Aguda , Adolescente , Adulto , Anciano , Aloinjertos , Aspergilosis/complicaciones , Aspergilosis/mortalidad , Aspergilosis/terapia , Niño , Preescolar , Enfermedad Crónica , Supervivencia sin Enfermedad , Femenino , Enfermedad Injerto contra Huésped/mortalidad , Enfermedad Injerto contra Huésped/prevención & control , Humanos , Lactante , Leucemia/mortalidad , Leucemia/terapia , Masculino , Persona de Mediana Edad , Tasa de Supervivencia
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