Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 44
Filtrar
1.
Pediatr Blood Cancer ; 68(11): e29311, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34459106

RESUMO

INTRODUCTION: Treatment abandonment contributes significantly to poor survival of children with cancer in low- and middle-income countries (LMIC). In order to inform an approach to this problem, we investigated why caregivers withdraw their children from treatment. METHODS: In a qualitative study, carried out in October and November 2020, in-depth interviews were conducted with caregivers of children who had abandoned cancer treatment at the Pediatric Cancer Unit of Mbarara Regional Referral Hospital in south-western Uganda. Recorded in-depth interviews were transcribed and analyzed to identify themes of caregivers' self-reported reasons for treatment abandonment. The study was approved by the Review and Ethics Committee of Mbarara University of Science and Technology. RESULTS: Seventy-seven out of 343 (22.4%) children diagnosed with cancer abandoned treatment during the study period; 20 contactable and consenting caregivers participated in the study. The median age of the caregivers was 37 years and most (65%) were mothers. At the time of this study, eight (40%) children were alive and five (62.5%) were males; with a median age of 6.5 years. Financial difficulty, other obligations, the child falsely appearing cured, preference for alternative treatments, belief that cancer was incurable, fear that the child's death was imminent and chemotherapy side effects were the caregivers' reasons for treatment abandonment. CONCLUSIONS AND RECOMMENDATION: Seeking cancer treatment for children in Uganda is an expensive venture and treatment abandonment is mainly caused by caregivers' difficult socio-economic circumstances. This problem needs to be approached with empathy and support rather than blame.


Assuntos
Cuidadores , Gastos em Saúde , Neoplasias , Adulto , Criança , Feminino , Humanos , Masculino , Mães , Neoplasias/economia , Neoplasias/terapia , Pesquisa Qualitativa , Autorrelato , Uganda/epidemiologia
2.
Pediatr Blood Cancer ; 66(7): e27679, 2019 07.
Artigo em Inglês | MEDLINE | ID: mdl-30916887

RESUMO

BACKGROUND: Fever and neutropenia is a common reason for nonelective hospitalization of pediatric oncology patients. Herein we report nearly five years of experience with a clinical pathway designed to guide outpatient management for patients who had low-risk features. PROCEDURES: Through a multidisciplinary collaboration, we implemented a clinical pathway at our institution using established low-risk criteria to guide outpatient management of pediatric oncology patients. Comprehensive chart review of all febrile neutropenia episodes was conducted to characterize outcomes of patients with low-risk febrile neutropenia following clinical pathway implementation. RESULTS: Between April 1, 2013, and October 1, 2017, there were 169 cases of febrile neutropenia managed in our Pediatric Oncology Unit. Sixty-seven (40%) of these episodes were defined as low risk and managed either entirely in the outpatient setting (41 episodes, 24%) or with a step-down strategy involving a very brief inpatient stay (26 episodes, 15%). There were no intensive care unit admissions or deaths among the low-risk patients. Of those identified as low risk, seven patients (10%) required subsequent hospitalization during the follow-up period, two for inadequate oral intake, two for persistent fevers, one for cellulitis, one for seizure unrelated to the febrile episode, and one for a positive blood culture. CONCLUSIONS: Following implementation of a clinical pathway, the majority of patients designated as low risk were managed primarily in the outpatient setting without major morbidity or mortality, suggesting that carefully selected low-risk patients can be successfully treated with outpatient management and subsequent admission if warranted.


Assuntos
Procedimentos Clínicos , Neutropenia Febril/terapia , Hospitalização , Pacientes Internados , Pacientes Ambulatoriais , Adolescente , Criança , Pré-Escolar , Feminino , Febre de Causa Desconhecida/terapia , Humanos , Masculino , Neoplasias/terapia
3.
Pediatr Blood Cancer ; 63(11): 2042-5, 2016 11.
Artigo em Inglês | MEDLINE | ID: mdl-27392033

RESUMO

Epstein-Barr virus-related lymphoproliferative disease (EBV-LPD) rarely occurs in patients with acute lymphoblastic leukemia (ALL), who have not received hematopoietic transplantation. We describe EBV-LPD manifesting as facial lesions in two children with ALL in remission. One patient was a 16-year-old male with T-cell ALL with an EBV-positive angiocentric polymorphous lip lesion presenting as right-sided facial swelling. The other patient was a 12-year-old male with B-cell ALL with an EBV-positive polymorphous lymphoplasmacytic infiltrate presenting as bilateral dacryoadenitis. Neither patient had known primary immunodeficiencies. Both cases improved with immunosuppressant de-escalation. These cases suggest that immunosuppression induced by maintenance chemotherapy is sufficient to promote EBV-LPD.


Assuntos
Dacriocistite/etiologia , Infecções por Vírus Epstein-Barr/complicações , Transtornos Linfoproliferativos/complicações , Leucemia-Linfoma Linfoblástico de Células Precursoras/complicações , Adolescente , Criança , Humanos , Masculino
4.
Br J Haematol ; 170(3): 367-71, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-25858645

RESUMO

Patient-specific primers from 10 children/adolescents with Burkitt leukaemia (BL) ± central nervous system disease who were treated with French-British-American/Lymphome Malins de Burkitt 96 C1 plus rituximab were developed from diagnostic blood/bone marrow. Minimal residual disease (MRD) was assessed by real-time polymerase chain reaction at the end of induction (EOI) and consolidation (EOC). Seventy per cent (7/10) and 71% (5/7) were MRD-positive at EOI and EOC, respectively, with no disease recurrences. MRD after induction and consolidation did not predict relapse and subsequent therapy appeared to eliminate MRD. Thus, assessing MRD at a later time point is warranted in future trials to determine its clinical significance.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Linfoma de Burkitt/sangue , Linfoma de Burkitt/tratamento farmacológico , Neoplasias do Sistema Nervoso Central/sangue , Neoplasias do Sistema Nervoso Central/tratamento farmacológico , Quimioterapia de Consolidação , Adolescente , Adulto , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Neoplasia Residual , Projetos Piloto , Reação em Cadeia da Polimerase em Tempo Real
5.
Br J Haematol ; 167(3): 394-401, 2014 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25066629

RESUMO

Children and adolescents with Burkitt Lymphoma (BL) and combined central nervous system (CNS) and bone marrow involvement still have a poor prognosis with chemotherapy alone. We therefore investigated in children and adolescents with bone marrow (≥25% blasts) and/or CNS-positive Burkitt lymphoma the chemoimmunotherapy combination of rituximab (375 mg/m(2) ) and the standard chemotherapy arm of our previously reported French-American-British (FAB) Lymphome Malins de Burkitt (LMB) 96 trial. Central pathological and cytogenetic characterization was also performed. There were 40 evaluable patients with Burkitt histology (25 with leukaemia and 15 with CNS disease ± leukaemia). The chemoimmunotherapy regimen was well tolerated. The incidence of grade III/IV mucositis during induction cycles with combined chemotherapy and rituximab was 31% and 26%, respectively. The 3-year event-free survival (EFS)/overall survival (OS) was 90% (95% confidence interval [CI], 76-96%) in the entire cohort and 93% (95% CI, 61-99%) in patients with CNS disease. Based on the results of this trial, an international randomized study of FAB/LMB 96 chemotherapy ± rituximab for high-risk patients is currently under investigation.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Linfoma de Burkitt/tratamento farmacológico , Neoplasias do Sistema Nervoso Central/tratamento farmacológico , Linfoma de Células B/tratamento farmacológico , Adolescente , Anticorpos Monoclonais Murinos/administração & dosagem , Anticorpos Monoclonais Murinos/efeitos adversos , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/efeitos adversos , Medula Óssea/patologia , Linfoma de Burkitt/genética , Criança , Quimioterapia de Consolidação , Ciclofosfamida/administração & dosagem , Ciclofosfamida/efeitos adversos , Citarabina/administração & dosagem , Citarabina/efeitos adversos , Intervalo Livre de Doença , Doxorrubicina/administração & dosagem , Doxorrubicina/efeitos adversos , Esquema de Medicação , Etoposídeo/administração & dosagem , Etoposídeo/efeitos adversos , Feminino , Genes myc , Humanos , Imunoterapia , Infusões Intravenosas , Estimativa de Kaplan-Meier , Linfoma de Células B/genética , Quimioterapia de Manutenção , Masculino , Metotrexato/administração & dosagem , Metotrexato/efeitos adversos , Prednisona/administração & dosagem , Prednisona/efeitos adversos , Indução de Remissão , Rituximab , Tiflite/induzido quimicamente , Vincristina/administração & dosagem , Vincristina/efeitos adversos
7.
Blood ; 120(12): 2395-404, 2012 Sep 20.
Artigo em Inglês | MEDLINE | ID: mdl-22855608

RESUMO

Pediatric follicular lymphoma (PFL) is a variant of follicular lymphoma (FL) presenting as localized lymphadenopathy in children. Unlike conventional adult FL, PFL typically does not recur or progress. Clear diagnostic criteria for PFL are lacking, and it is uncertain whether this indolent lymphoma is defined by age or may occur in adults. We analyzed 27 FL in patients < 40 years of age and found that all 21 cases that lacked a BCL2 gene abnormality (BCL2-N; P < .0001) and had > 30% Ki67 fraction (high proliferation index, HPI; P = .0007) were stage I and did not progress or recur; in comparison, all 6 cases with BCL2 rearrangement and/or PI < 30% were stage III/IV, and 5 of 6 recurred or progressed. In a separate cohort of 58 adult FL (≥ 18 years of age), all 13 BCL2-N/HPI cases were stage I, and none progressed or relapsed, whereas 11 of 15 stage I cases with BCL2 gene abnormality and/or LPI relapsed or progressed (P = .0001). The adult and pediatric BCL2-N/HPI FL cases had similar morphologic features. Our results confirm the highly indolent behavior of PFL and suggest that these are characterized by HPI and absence of BCL2 gene abnormality. PFL-like cases also occur in adults and are associated with indolent behavior in this patient population.


Assuntos
Proliferação de Células , Rearranjo Gênico/genética , Linfonodos/patologia , Linfoma Folicular/genética , Linfoma Folicular/patologia , Proteínas Proto-Oncogênicas c-bcl-2/genética , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Criança , Pré-Escolar , Estudos de Coortes , Progressão da Doença , Feminino , Humanos , Imunofenotipagem , Hibridização in Situ Fluorescente , Lactente , Recém-Nascido , Antígeno Ki-67/metabolismo , Linfoma Folicular/mortalidade , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/genética , Recidiva Local de Neoplasia/mortalidade , Recidiva Local de Neoplasia/patologia , Prognóstico , Taxa de Sobrevida , Adulto Jovem
8.
Pediatr Blood Cancer ; 61(12): 2236-42, 2014 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-25156886

RESUMO

BACKGROUND: Optimal therapy for children and adolescents with advanced stage anaplastic large cell lymphoma (ALCL) is unknown. ANHL0131 examined whether a maintenance regimen including vinblastine compared to the standard APO (doxorubicin, prednisone, vincristine, methotrexate, 6-mercaptopurine) regimen would result in superior event-free survival. PROCEDURE: One hundred and twenty five eligible patients were enrolled. Induction was identical for both arms. Post induction patients were randomized to receive APO with vincristine every 3 weeks or a regimen that substituted vincristine with weekly vinblastine (APV). RESULTS: There was no difference between the patients randomized to the APO versus APV arms in either event free survival (EFS) or overall survival (OS) (three year EFS 74% vs. 79%, P = 0.68 and three years OS of 84% vs. 86%, P = 0.87, respectively). Patients in the APV arm required dose reduction secondary to myelosuppression and had a higher incidence of neutropenia as well as infection with neutropenia compared to those in the APO arm (P < 0.001, P = 0.019, respectively). CONCLUSIONS: Treatment with weekly vinblastine instead of every three week vincristine as part of multi-agent maintenance therapy did not result in improvement in EFS or OS. Weekly vinblastine was associated with increased toxicity. (ClinicalTrials.gov Identifier NCT00059839).


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Linfoma Anaplásico de Células Grandes/tratamento farmacológico , Adolescente , Adulto , Criança , Pré-Escolar , Doxorrubicina/administração & dosagem , Feminino , Seguimentos , Humanos , Lactente , Linfoma Anaplásico de Células Grandes/mortalidade , Linfoma Anaplásico de Células Grandes/patologia , Masculino , Mercaptopurina/administração & dosagem , Metotrexato/administração & dosagem , Estadiamento de Neoplasias , Prednisona/administração & dosagem , Prognóstico , Taxa de Sobrevida , Vimblastina/administração & dosagem , Vincristina/administração & dosagem , Adulto Jovem
9.
Br J Haematol ; 162(6): 792-801, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23889312

RESUMO

The Children's Oncology Group's A5971 trial examined central nervous system (CNS) prophylaxis and early intensification in paediatric patients diagnosed with CNS-negative Stage III and IV lymphoblastic lymphoma. Using a 2 × 2 factorial design, the study randomized patients to Children's Cancer Group (CCG) modified Berlin-Frankfurt-Muenster (BFM) acute lymphoblastic leukaemia (ALL) regimen with intensified intrathecal (IT) methotrexate (MTX) (Arm A1) or an adapted non-Hodgkin lymphoma/BFM-95 therapy with high dose MTX in interim maintenance but no IT-MTX in maintenance (Arm B1). Each cohort was randomized ± intensification (cyclophosphamide/anthracycline) (Arms A2/B2). For the 254 randomized patients, there was no difference in 5-year event-free survival (EFS) for the four arms: Arm A1, 80% [95% confidence interval (CI) 67-89%] and Arm A2, 81% (95% CI 69-89%); Arm B1, 80% (95% CI 68-88%) and Arm B2, 84% (95% CI 72-91%). The cumulative incidence of CNS relapse was 1·2%. Age <10 years and institutional imaging response at 2 weeks was associated with improved outcomes (P < 0·001 and P = 0·014 for overall survival). CNS positive patients (n = 12) did poorly [5-year EFS of 63% (95% CI 29-85%)]. For CNS-negative patients, there was no difference in outcome based on CNS prophylaxis (IT-MTX versus HD-MTX) or with intensification.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Leucemia-Linfoma Linfoblástico de Células Precursoras/tratamento farmacológico , Antraciclinas/administração & dosagem , Protocolos de Quimioterapia Combinada Antineoplásica/administração & dosagem , Neoplasias do Sistema Nervoso Central/prevenção & controle , Neoplasias do Sistema Nervoso Central/secundário , Criança , Ciclofosfamida/administração & dosagem , Intervalo Livre de Doença , Feminino , Humanos , Injeções Espinhais , Masculino , Metotrexato/administração & dosagem , Estadiamento de Neoplasias , Leucemia-Linfoma Linfoblástico de Células Precursoras/patologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA