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1.
Dermatology ; 240(2): 216-225, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38228125

RESUMO

BACKGROUND: Infants with infantile hemangioma (IH) have been effectively treated with propranolol or atenolol. Concerns were raised about the mental health of these children at school age, due to central nervous system effects of propranolol and visible nature of IH. OBJECTIVE: This study aimed to compare the mental health at school age of children treated with propranolol to children treated with atenolol for IHs and their parents. METHODS: This two-centered cross-sectional study included children aged ≥6 years and treated with either propranolol or atenolol for IH during infancy. Children's outcomes were performance-based affect recognition (Dutch version of the Developmental Neuropsychological Assessment-II [NEPSY-II-NL]), parent-reported emotional and behavioral functioning (Child Behavioral Checklist [CBCL]), and health-related quality of life (KIDSCREEN-27). Parents' outcome was parenting stress (Parenting Stress Questionnaire [OBVL]). RESULTS: Data of 105 children (36 propranolol, 69 atenolol; 6.0-11.8 years) were analyzed. Mental health outcomes did not differ between both ß-blocker groups. Although overall functioning was in line with norms, children presented specific problems concerning affect recognition, parent-reported attention, and social quality of life. Parents showed increased physical symptoms, depressive symptoms, and parent-child relationship problems. CONCLUSION: No difference in mental health at school age was found between children treated with propranolol or atenolol for IH. Although few overall mental health problems were found, specific problems require follow-up. Follow-up of children should be directed toward affect recognition, attention, and social functioning in daily life. Problems reported by parents could be ameliorated by mental health support during and after their infant's ß-blocker treatment.


Assuntos
Atenolol , Hemangioma Capilar , Lactente , Humanos , Criança , Atenolol/uso terapêutico , Propranolol/uso terapêutico , Saúde Mental , Estudos Transversais , Qualidade de Vida , Hemangioma Capilar/tratamento farmacológico , Antagonistas Adrenérgicos beta/uso terapêutico , Pais
3.
Acta Derm Venereol ; 103: adv5286, 2023 Aug 30.
Artigo em Inglês | MEDLINE | ID: mdl-37649330

RESUMO

Parents of infants treated with beta-blockers for infantile haemangioma are often concerned about the long-term aesthetic outcome. This cross-sectional study assessed the influence on the long-term aesthetic outcome of characteristics of the infantile haemangioma, the beta-blocker treatment, and the infant. The study included 103 children aged 6-12 years, treated with beta-blockers (propranolol or atenolol) for infantile haemangioma during infancy (age at treatment initiation ≤1 year) for ≥6 months. Dermatologists and parents scored the Patient Observer Scar Assessment Scale, and the child scored a visual analogue scale. Dermatologists identified whether telangiectasia, fibrofatty tissue, and atrophic scar tissue were present. The long-term aesthetic outcome of infantile haemangioma was judged more negatively by dermatologists and parents in case of a superficial component, ulceration, older age at treatment initiation, higher cumulative dose, and/or shorter follow-up time. According to children, infantile haemangioma located on the head had better aesthetic outcome than infantile haemangioma located elsewhere. Close monitoring, particularly of infantile haemangioma with a superficial component, is essential for early initiation of treatment, and to prevent or treat ulceration. These outcome data can support parental counselling and guide treatment strategy.


Assuntos
Cicatriz , Hemangioma Capilar , Criança , Lactente , Humanos , Estudos Transversais , Prognóstico , Antagonistas Adrenérgicos beta/efeitos adversos , Estética
6.
Eur J Pediatr ; 182(2): 757-767, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36478294

RESUMO

The purpose of this study was to compare long-term neurocognitive functioning (working memory, processing speed, and attention) between children who had been treated with either propranolol or atenolol for infantile hemangioma during infancy. All eligible children (n = 158) aged 6 years or older and treated with propranolol or atenolol as infants were invited to participate in this two-center cross-sectional study. The primary outcome was the Wechsler Intelligence Scale for Children-V Cognitive Proficiency Index (CPI), a measure of working memory, processing speed, and attention. Secondary outcomes were general intelligence, auditory, visuospatial, and narrative memory, as well as executive functioning and sleep. A total of 105 children, of whom 36 had been treated with propranolol (age 6.0-11.8 years, follow-up time 1.6-9.7 years, 19% male) and 69 had been treated with atenolol (age 6.9-9.7 years, follow-up time 4.5-8.4 years, 19% male), were analyzed. The CPI and other neurocognitive outcomes did not differ between the propranolol and atenolol groups and were in line with general population test norms. Post hoc analyses revealed lower CPI scores for males, both compared to participating females (10.3 IQ points, medium effect size) and compared to matched test norms (12.4 IQ points, medium effect size). CONCLUSIONS:  Long-term neurocognitive functioning did not differ between children treated with propranolol and those treated with atenolol for IH. Overall, propranolol and atenolol appear to be safe treatments for IH regarding long-term neurocognitive functioning. The substantially lower CPI scores in males warrant further investigation. TRIAL REGISTRATION:  Netherlands Trial Register, NL7703 https://www.trialregister.nl/trial/7703 What is Known: • Infants with infantile hemangioma are effectively treated with propranolol or atenolol. • Parents and professionals are concerned about long-term neurocognitive effects. WHAT IS NEW: • No long-term (≥ 6 years) differences in neurocognitive functioning were found between children treated with propranolol or atenolol. • Males treated with beta-blockers had substantially lower IQ scores than treated females and males from the general population, which is a matter of concern and should be considered when evaluating the risk/benefit ratio in less severe forms of infantile hemangioma.


Assuntos
Hemangioma Capilar , Hemangioma , Lactente , Feminino , Humanos , Masculino , Criança , Propranolol/efeitos adversos , Atenolol/efeitos adversos , Estudos Transversais , Antagonistas Adrenérgicos beta/efeitos adversos , Resultado do Tratamento
7.
Eur J Surg Oncol ; 49(2): 329-338, 2023 02.
Artigo em Inglês | MEDLINE | ID: mdl-36372617

RESUMO

This study systematically reviewed the literature to investigate the value of secondary surgery for children with a high-risk neuroendocrine tumor (NET) of appendix. A systematic search was performed in PubMed, Embase and Web of Science. All randomized controlled trials, cohort studies, and case series reporting on the management and outcomes of patients (<20 years) with a histopathologically proven NET of the appendix were eligible for inclusion. Two authors independently selected eligible articles, assessed risk of bias, and extracted data. The outcomes of patients with a high-risk NET treated with secondary surgery were compared to those treated without secondary surgery. Primary outcomes were recurrence rate and disease-free survival. The literature search yielded 667 articles, of which 29 were included. These studies reported on 1112 patients, of whom 145 (13%) had high-risk NET. Heterogeneity between studies was large and risk of bias was serious in 26 and moderate in three studies. Secondary surgery after primary appendectomy was performed in 64 of 145 patients (44%). Length of follow-up ranged between 0 and 612 months. In both treatment groups no recurrences were reported, and thus disease-free survival was 100%. Based on current literature, the value of secondary surgery for pediatric high-risk NET of the appendix may be questioned. However, evidence is scarce, of low-quality, and heterogeneity between studies is large. Large international studies with adequate follow-up are needed to generate high-quality evidence on this topic.


Assuntos
Neoplasias do Apêndice , Apêndice , Tumores Neuroendócrinos , Humanos , Criança
8.
Acta Derm Venereol ; 102: adv00788, 2022 Oct 11.
Artigo em Inglês | MEDLINE | ID: mdl-35506358

RESUMO

Infantile haemangiomas are common benign tumours of infancy, which can be treated effectively with beta-blockers such as propranolol and atenolol. Different types of beta-blockers may result in different long-term aesthetic outcomes. This study evaluated the difference in long-term aesthetic outcomes between infantile haemangiomas treated with either propranolol or atenolol, including the perspective of physicians, parents, and children. Children, aged ≥6 years, treated with propranolol or atenolol for infantile haemangioma during infancy, participated in this 2-centre cross-sectional study. The primary endpoint was change in appearance of the infantile haemangioma from pre-treatment to follow-up, using a physician-rated visual analogue scale (VAS). Secondary outcomes were the Patient Observer Scar Assessment Scale (physician- and parent-rated) and a VAS (child-rated), assessing the residual lesion. In total, 103 children (35 treated with propranolol, 68 with atenolol) were analysed. No differences were found between children treated with propranolol and children treated with atenolol on physician-rated VAS (p = 0.10) or any secondary outcomes. Physicians indicated a large aesthetic improve-ment from pre- treatment to follow-up. Physicians, parents and children were positive about the current state of the residual lesion. Minor sequelae were common (86%). These results, in combination with the favourable safety profile of atenolol, should be considered when choosing beta-blocker treatment for infantile haemangioma.


Assuntos
Hemangioma Capilar , Hemangioma , Antagonistas Adrenérgicos beta/efeitos adversos , Atenolol/efeitos adversos , Estudos Transversais , Estética , Hemangioma/tratamento farmacológico , Hemangioma/patologia , Humanos , Lactente , Propranolol/efeitos adversos , Resultado do Tratamento
9.
Cancer Invest ; 40(5): 413-424, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-35175864

RESUMO

This multi-center cohort-study examined late mortality among 6,165 Dutch five-year childhood cancer survivors diagnosed 1963-2001. Clinical details and cause of death were based on medical records. Mortality was 12-fold that of the general population, with 51.3 additional deaths per 10,000 person-years (21.9 yrs median follow-up). Cumulative mortality 15 yrs post-diagnosis was 6.9%, predominantly from late recurrences; thereafter the absolute contribution of other health outcomes increased. Cumulative all-cause and recurrence-related mortality were highest for Central Nervous System and bone tumor survivors. All-cause, but not subsequent tumor and circulatory disease-related cumulative mortality, was highest for patients diagnosed 1963-1979 vs. later (p-trend <0.001).


Assuntos
Sobreviventes de Câncer , Neoplasias , Neoplasias Ósseas/mortalidade , Causas de Morte , Criança , Estudos de Coortes , Humanos , Neoplasias/diagnóstico , Neoplasias/epidemiologia , Neoplasias/mortalidade , Neoplasias/terapia , Países Baixos/epidemiologia
10.
Hematol., Transfus. Cell Ther. (Impr.) ; 44(1): 63-69, Jan.-Mar. 2022. tab, graf, ilus
Artigo em Inglês | LILACS | ID: biblio-1364896

RESUMO

Abstract Objective We evaluated the relevance of using the smudge cell percentage in the blood smear as a prognostic marker in CLL. Methods In this prospective study, 42 untreated Senegalese patients with CLL were enrolled. The diagnosis was established, based on the peripheral blood count and flow cytometry using the Matutes score. Cytogenetic aberrations, assessed by fluorescence in situ hybridization (FISH), were available for 30 patients, while the immunoglobulin heavy chain genes (IGVH) mutation status was performed by next-generation sequencing (NGS) in 24 patients. The SC percentage was determined in the blood smear, as previously described. Statistical analyses were executed using the GraphPad Prism 8. Results The mean age was 63 years (48 - 85) and the male: female sex ratio was 4.66. A low SC (< 30%) percentage was correlated with Binet stage B/C (p= 0.0009), CD38 expression (p= 0.039), unmutated IGVH status (p= 0.0009) and presence of cytogenetic abnormalities (for del 13q, p= 0.0012, while for other cytogenetic aberrations, p= 0.016). An inverse correlation was found between the SC percentage and the absolute lymphocyte count (r= -0.51) and patients with higher percentage of SCs had a prolonged survival. However, there was no correlation between the SC percentage and age (p= 0.41) or gender (median, 19% for males vs. 20% for females; p= 0.76). Conclusion When less than 30%, the SC was associated with a poor prognosis in CLL. Easy and affordable, the percentage of SCs in a blood smear could be a reliable prognostic marker, accessible to all CLL patients, mainly those in developing countries.


Assuntos
Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Idoso , Idoso de 80 Anos ou mais , Leucemia Linfocítica Crônica de Células B , Prognóstico , Senegal
11.
Hematol Transfus Cell Ther ; 44(1): 63-69, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-34116931

RESUMO

OBJECTIVE: We evaluated the relevance of using the smudge cell percentage in the blood smear as a prognostic marker in CLL. METHODS: In this prospective study, 42 untreated Senegalese patients with CLL were enrolled. The diagnosis was established, based on the peripheral blood count and flow cytometry using the Matutes score. Cytogenetic aberrations, assessed by fluorescence in situ hybridization (FISH), were available for 30 patients, while the immunoglobulin heavy chain genes (IGVH) mutation status was performed by next-generation sequencing (NGS) in 24 patients. The SC percentage was determined in the blood smear, as previously described. Statistical analyses were executed using the GraphPad Prism 8. RESULTS: The mean age was 63 years (48 - 85) and the male: female sex ratio was 4.66. A low SC (< 30%) percentage was correlated with Binet stage B/C (p = 0.0009), CD38 expression (p = 0.039), unmutated IGVH status (p = 0.0009) and presence of cytogenetic abnormalities (for del 13q, p = 0.0012, while for other cytogenetic aberrations, p = 0.016). An inverse correlation was found between the SC percentage and the absolute lymphocyte count (r = -0.51) and patients with higher percentage of SCs had a prolonged survival. However, there was no correlation between the SC percentage and age (p = 0.41) or gender (median, 19% for males vs. 20% for females; p = 0.76). CONCLUSION: When less than 30%, the SC was associated with a poor prognosis in CLL. Easy and affordable, the percentage of SCs in a blood smear could be a reliable prognostic marker, accessible to all CLL patients, mainly those in developing countries.

12.
Histopathology ; 79(6): 1099-1107, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34431125

RESUMO

BACKGROUND: Human herpesvirus-8 (HHV8) is a lymphotropic virus associated with different lymphoproliferative disorders, including primary effusion lymphoma (PEL), multicentric Castleman's disease (MCD), diffuse large B-cell lymphomas, not otherwise specified, and the rare entity known as germinotropic lymphoproliferative disorder (GLPD). In PELs and GLPD the neoplastic cells also contain Epstein-Barr virus (EBV). In addition, occasional cases with atypical and overlapping features among these entities have been recognised, suggesting that the spectrum of the HHV8-related lesions may not be fully characterised. AIMS: Here, we report two cases of lymphoproliferative disorder associated with HHV8 and EBV that further expand the spectrum of HHV8/EBV-positive lymphoproliferative disease. METHODS AND RESULTS: Case 1 represented HHV8/EBV-positive extracavitary nodal PEL followed by pleural PEL. The striking characteristic of this case was the almost focal and intrasinusoidal localisation of the neoplastic cells and the association with Castleman's disease features. In the second case, we found the entire spectrum of HHV8-related disorders, i.e. MCD, GLPD, and PEL, coexisting in the same lymph node, underlining the variability, possible overlap and evolution among these entities. Both cases were well analysed with immunohistochemistry, determination of the EBV latency programme, and molecular analysis for clonality of immnoglobulin genes. In both patients, the disease followed an unexpected indolent course, both being still alive after 8 and 12 months, respectively. CONCLUSION: Our findings represent further evidence of the overlap among HHV8/EBV-positive lymphoproliferative disorders, and underline a grey zone that requires further study; they further confirm the experimental evidence that lytic EBV replication influences HHV8-related tumorigenesis.


Assuntos
Coinfecção/virologia , Infecções por Vírus Epstein-Barr/complicações , Infecções por Herpesviridae/complicações , Transtornos Linfoproliferativos/virologia , Ativação Viral , Idoso , Evolução Clonal , Infecções por Vírus Epstein-Barr/virologia , Feminino , Infecções por Herpesviridae/virologia , Herpesvirus Humano 4/fisiologia , Herpesvirus Humano 8 , Humanos , Transtornos Linfoproliferativos/patologia , Masculino , Pessoa de Meia-Idade
13.
Ned Tijdschr Geneeskd ; 1632019 05 22.
Artigo em Holandês | MEDLINE | ID: mdl-31166093

RESUMO

Infantile haemangioma is a relatively common and usually benign condition that occurs in infancy. Nonetheless, during the growth phase in the first weeks or months of the child's life it can have a profound impact on both the patient and parents, especially when functional problems or complications occur. Care and attention by physicians is important at this stage; the information given by many healthcare practitioners that the infantile haemangioma will spontaneously disappear is often insufficiently reassuring and is not always correct. With the discovery of the therapeutic potential of oral beta-blockers, ten years ago, treatment has become more effective and more straightforward. Counselling on treatment with beta-blockers should be considered with low threshold. Consultation of a centre of expertise, possibly electronically, can facilitate timely referral so that growth of the infantile haemangioma can be stopped and complications may be prevented. Managing anxiety levels among parents/carers can be an important reason for consultation of a centre of expertise. During the growth phase of infantile haemangioma, careful monitoring is indicated, since time is of the essence for cases of infantile haemangioma with impending complications, associations or severe deformation.


Assuntos
Hemangioma Capilar/diagnóstico , Hemangioma Capilar/terapia , Encaminhamento e Consulta , Antagonistas Adrenérgicos beta/uso terapêutico , Aconselhamento Diretivo , Diagnóstico Precoce , Hemangioma Capilar/patologia , Hemangioma Capilar/psicologia , Humanos , Lactente , Pais/psicologia , Propranolol/uso terapêutico
15.
Ned Tijdschr Geneeskd ; 1622018 09 17.
Artigo em Holandês | MEDLINE | ID: mdl-30306760

RESUMO

Reactive thrombocytosis (RT; thrombocyte count: > 450 x 109/l) is a condition in which an increase in platelet production, stimulated by cytokines in the bone marrow, is secondary to some condition or circumstance. Although RT does often occur in children, the risk of thromboembolic complications is negligible in this group if they have no other risk factors for thrombosis. In the absence of additional risk factors for thrombosis it seems as though RT in adults does not predispose them to thromboembolic complications either. Patients with RT caused by a non-myeloproliferative malignancy do have an increased risk of thromboembolic complications; antithrombotic prophylaxis might be effective in this group, but there is no scientific evidence for this. We advise a watch-and-wait approach in children and adults with RT who have no other risk factors for thromboembolism, even in patients with extreme thrombocytosis (thrombocyte count: > 1000 x 109/l). In patients who do have an increased risk of thromboembolic complications we advise tailoring prescription or non-prescription of antithrombotic prophylaxis to the individual patient.


Assuntos
Fibrinolíticos/uso terapêutico , Trombocitose/complicações , Tromboembolia/etiologia , Trombose/etiologia , Adulto , Criança , Feminino , Humanos , Masculino , Fatores de Risco , Trombocitose/tratamento farmacológico
16.
Am J Clin Pathol ; 148(6): 545-554, 2017 Nov 20.
Artigo em Inglês | MEDLINE | ID: mdl-29165569

RESUMO

OBJECTIVES: Chronic lymphocytic leukemia (CLL) is the most common type of leukemia in Western populations, being rarer in Asian and African people. It has been suggested that patients with CLL from Africa might have a more aggressive disease compared with white patients. In this study, we aimed to identify genetic factors that may account for this difference. METHODS: We analyzed immunoglobulin heavy chain (IGH) genes' mutational status by performing next-generation sequencing in 25 Senegalese and 50 Italian patients with CLL. RESULTS: We found that Senegalese patients more frequently had adverse prognostic factors and an unmutated profile. Furthermore, we documented that IGHV1 (IGHV1-69), IGHD3, and IGHJ6 were significantly more frequent in Senegalese patients, whereas IGHV3-30 was common and limited to the Italian cohort. Stereotyped receptors commonly detected in the white population were not recorded in our Senegalese series. CONCLUSIONS: The different IGH repertoire we observed in the Senegalese cohort may reflect the diverse genetic and microenvironmental (ie, polymicrobial stimulation) background.


Assuntos
Genes de Cadeia Pesada de Imunoglobulina/genética , Cadeias Pesadas de Imunoglobulinas/genética , Região Variável de Imunoglobulina/genética , Leucemia Linfocítica Crônica de Células B/genética , Sequência de Aminoácidos , Estudos de Coortes , Feminino , Humanos , Masculino , Família Multigênica/genética , Senegal , Microambiente Tumoral/genética
17.
Am J Hematol ; 91(12): E482-E490, 2016 12.
Artigo em Inglês | MEDLINE | ID: mdl-27643674

RESUMO

TMPRSS6 variants that affect protein function result in impaired matriptase-2 function and consequently uninhibited hepcidin production, leading to iron refractory iron deficiency anemia (IRIDA). This disease is characterized by microcytic, hypochromic anemia and serum hepcidin values that are inappropriately high for body iron levels. Much is still unknown about its pathophysiology, genotype-phenotype correlation, and optimal clinical management. We describe 14 different TMPRSS6 variants, of which 9 are novel, in 21 phenotypically affected IRIDA patients from 20 families living in the Netherlands; 16 out of 21 patients were female. In 7 out of 21 cases DNA sequencing and multiplex ligation dependent probe amplification demonstrated only heterozygous TMPRSS6 variants. The age at presentation, disease severity, and response to iron supplementation were highly variable, even for patients and relatives with similar TMPRSS6 genotypes. Mono-allelic IRIDA patients had a milder phenotype with respect to hemoglobin and MCV and presented significantly later in life with anemia than bi-allelic patients. Transferrin saturation (TSAT)/hepcidin ratios were lower in IRIDA probands than in healthy relatives. Most patients required parenteral iron. Genotype alone was not predictive for the response to oral iron. We conclude that IRIDA is a genotypically and phenotypically heterogeneous disease. The high proportion of female patients and the discrepancy between phenotypes of probands and relatives with the same genotype, suggest a complex interplay between genetic and acquired factors in the pathogenesis of IRIDA. In the absence of inflammation, the TSAT/hepcidin ratio is a promising diagnostic tool, even after iron supplementation has been given. Am. J. Hematol. 91:E482-E490, 2016. © 2016 Wiley Periodicals, Inc.


Assuntos
Anemia Ferropriva , Adolescente , Adulto , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Pessoa de Meia-Idade , Países Baixos , Adulto Jovem
18.
BMC Hematol ; 16: 10, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27110362

RESUMO

BACKGROUND: Chronic lymphocytic leukemia (CLL) is a mature B-cell neoplasm characterized by the expansion of CD5-positive lymphocytes in peripheral blood. While CLL is the most common type of leukemia in Western populations, the disease is rare in Africans. Hence, clinical and laboratory data and studies of CLL in Sub Saharan populations have been limited. The aims of this study were to analyze the characteristics of senegalese patients with CLL at the time of the diagnosis and to identify the correlation between clinical characteristics (Binet stage) with age, gender, laboratory parameters and chromosomal abnormalities. METHODS: In this study, we investigated the clinical and laboratory characteristics of CLL in Senegal. A total of 40 patients who had been diagnosed with CLL during the period from July 2011 to April 2015 in Senegal were evaluated. Cytology and immunophenotype were performed in all patients to confirm the diagnosis. The prognosis factors such as Binet staging, CD38 and cytogenetic abnormalities were studied. The statistical analysis was performed using STATA version 13 (Stata college station Texas). Each patient signed a free and informed consent form before participating in the study. RESULTS: The mean age was 61 years ranged from 48 to 85. There were 31 males and only 9 females (sex ratio M : F = 3,44). At diagnosic, 82.5 % of the patients were classified as having advanced Binet stages B or C. The prognosis marker CD38 was positive in 28 patients. Cytogenetic abnormalities studied by FISH were performed in 25 patients, among them, 68 % (17 cases) had at least one cytogenetic abnormality and 28 % had 2 simultaneous cytogenetic abnormalities. CONCLUSION: Africans may present with CLL at a younger age and our data suggest that CLL in Senegal may be more aggressive than in Western populations.

19.
Pediatr Blood Cancer ; 63(8): 1438-44, 2016 08.
Artigo em Inglês | MEDLINE | ID: mdl-27128820

RESUMO

BACKGROUND: Pediatric oncology patients with tunneled central venous catheters (CVCs) are at increased risk to develop venous thromboembolic events (VTEs), but the true prevalence of (a)symptomatic VTE is unknown. Aim of this study was to evaluate the prevalence of (a)symptomatic VTE in pediatric oncology patients with tunneled CVCs. PROCEDURE: All patients were included in the Aristocaths study: a randomized controlled multicenter trial investigating the prophylactic effect of 70% ethanol locks on CVC-associated bloodstream infections (CABSIs) were eligible for this study. We assessed the following outcomes: (i) symptomatic VTE and (ii) asymptomatic CVC-related VTE (using ultrasound [US]). Follow-up was 6 months, unless patients developed one of the following events: VTE, CABSI, CVC removal, or death. RESULTS: We included 305 patients (hematologic malignancy, n = 148; solid tumor, n = 157), median age 9 years (range, 1-18 years). Symptomatic VTE was detected in 8 of 305 patients (2.6%; 95% confidence interval [CI]: 1.1-5.1%), which was related to the CVC in three patients. Patients (185/305) were evaluated with US: 11 of 185 (5.9%; 95% CI: 3.0-10.4%) patients had asymptomatic CVC-related VTE. CONCLUSIONS: Prevalence of both symptomatic VTE and asymptomatic CVC-related VTE was low compared to other studies, which may be explained by the inclusion of patients with solid tumors, reduction of CABSI by ethanol, use of tunneled CVCs, and use of US.


Assuntos
Anticoagulantes/uso terapêutico , Cateterismo Venoso Central/efeitos adversos , Etanol/uso terapêutico , Heparina/uso terapêutico , Neoplasias/terapia , Trombose Venosa/epidemiologia , Adolescente , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Prevalência , Resultado do Tratamento , Trombose Venosa/prevenção & controle
20.
Br J Haematol ; 173(1): 137-44, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26887776

RESUMO

Dysregulation of MYC is the genetic hallmark of Burkitt lymphoma (BL) but it is encountered in other aggressive mature B-cell lymphomas. MYC dysregulation needs other cooperating events for BL development. We aimed to characterize these events and assess the differences between adult and paediatric BLs that may explain the different outcomes in these two populations. We analysed patterns of genetic aberrations in a series of 24 BLs: 11 adults and 13 children. We looked for genomic imbalances (copy number variations), copy-neutral loss of heterozygosity (CN-LOH) and mutations in TP53, CDKN2A, ID3 (exon 1), TCF3 (exon17) and CCND3 (exon 6). Young patients displayed more frequent 13q31.3q32.1 amplification, 7q32q36 gain and 5q23.3 CN-LOH, while 17p13 and 18q21.3 CN-LOH were only detected in adult BLs. ID3 mutations were present in all adult samples, but only in 42% of childhood cases. CCND3 and ID3 double-hit mutations, as well as 18q21 CN-LOH, seemed to be associated with poorer outcome. For the first time, we report different genetic anomalies between adult and paediatric BLs, suggesting age-related heterogeneity in Burkitt lymphomagenesis. This may explain the poorer prognosis of adult BLs. Additional studies are needed to confirm these results in the setting of clinical trials.


Assuntos
Linfoma de Burkitt/genética , Aberrações Cromossômicas , Cromossomos Humanos/genética , Perda de Heterozigosidade , Proteínas de Neoplasias/genética , Adolescente , Adulto , Fatores Etários , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino
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