Abstract:
BACKGROUND:Sickle cell anaemia (SCA) is the leading genetic disorder in Nigeria. Elevated velocities ≥170 cm/sec occur in about a third of Nigerian children with SCA. Chronic blood transfusion for stroke prevention is faced with a myriad of challenges in our practice. OBJECTIVES:To evaluate the effectiveness of hydroxyurea (HU) in reducing flow velocities in a cohort of Nigerian children with SCA and elevated velocities treated with HU. METHODS:An observational study was carried out on a cohort of Nigerian children with SCA and elevated velocities identified on routine transcranial Doppler (TCD) screening. HU was recommended in those with TCD velocities ≥ 170cm/sec as stipulated in our hospital protocol. Outcomes were compared after ≥12 months of observation. RESULTS:Fifty children with elevated TCD velocities were studied; 31 consented to HU therapy and 19 declined. Children on HU showed a statistically significant decline in mean velocities from 199.7 [17.1] cm/sec to 165.8 [20.7] cm/sec (P < 0.001) with a significant increase in mean packed cell volume from 21.1 [3.4] to 25.0 [2.8]%. Children without treatment had a significant rise in mean velocities from 190.2 [10.8] cm/sec to 199.7 [14.9] cm/sec (P = 0.003). Children with conditional risk velocities on HU were less likely to convert to abnormal risk (P < 0.001). Two stroke events occurred, one in each group. No adverse effects of HU were recorded in the cohort. CONCLUSION:HU appears to significantly reduce TCD velocities in Nigerian children with SCA and elevated velocities ≥170 cm/sec with beneficial effect on the haematological profile. HU may provide an effective approach to primary stroke prevention, particularly in Africa.
journal_name
Pediatr Blood Cancerjournal_title
Pediatric blood & cancerauthors
Lagunju I,Brown BJ,Sodeinde Odoi
10.1002/pbc.25529subject
Has Abstractpub_date
2015-09-01 00:00:00pages
1587-91issue
9eissn
1545-5009issn
1545-5017journal_volume
62pub_type
杂志文章abstract:BACKGROUND:Patients with relapsed or refractory Ewing sarcoma have a poor outcome with conventional therapies. Cytarabine decreases EWS/FLI1 protein levels in Ewing sarcoma cells and has demonstrated preclinical activity against Ewing sarcoma in vitro and in vivo. The purpose of this phase II clinical trial was to esti...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章
doi:10.1002/pbc.21822
更新日期:2009-03-01 00:00:00
abstract:BACKGROUND:Survival rates for patients with bone tumors have increased dramatically over the past few decades. Unfortunately, many patients face functional limitations resulting from disease management, but there is little evidence regarding physical functioning in adolescents with bone tumors. This lack is largely due...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章,评审
doi:10.1002/pbc.20383
更新日期:2005-10-15 00:00:00
abstract::We describe an African American family with Hoyeraal-Hreidarrson syndrome (HHS) in which 2 TERT mutations (causing P530L and A880T amino acid changes) and two in the DKC1 variants (G486R and A487A) were segregating. Both genes are associated with dyskeratosis congenita and HHS. It was important to determine the import...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章
doi:10.1002/pbc.24389
更新日期:2013-06-01 00:00:00
abstract::Leydig cell tumors account for 3% of testicular tumors and have never been reported after treatment for Ewing's sarcoma. We report the unusual occurrence of a patient who developed a Leydig cell tumor of the testis 18 years after successful treatment for Ewing's sarcoma. Additional monitoring for second malignancies m...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章
doi:10.1002/pbc.20825
更新日期:2007-12-01 00:00:00
abstract::Beckwith-Wiedemann syndrome (BWS) is a genetic overgrowth and cancer predisposition syndrome, associated with both benign and malignant adrenal findings. Literature review and an institutional case series elucidate the wide spectrum of adrenal findings in BWS patients. The altered expression of the 11p15 region is lik...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章,评审
doi:10.1002/pbc.26432
更新日期:2017-08-01 00:00:00
abstract:BACKGROUND:Follicular variant of papillary thyroid carcinoma (FVPTC) has been shown to be an intermediate entity between papillary (PTC) and follicular/Hurtle cell (FTC) thyroid carcinoma in adults. However, the tumor characteristics and prognosis of FVPTCs has not been studied in the pediatric population and is the fo...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章
doi:10.1002/pbc.25623
更新日期:2015-11-01 00:00:00
abstract:BACKGROUND:Despite advances in therapy, outcome in many high-grade pediatric central nervous system (CNS) tumors remains poor. The focus of neuro-oncology research has thus turned towards identifying novel therapeutic targets. Poly(ADP-ribose) polymerase-1 (PARP1) is a DNA repair protein that has been studied in a vari...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章
doi:10.1002/pbc.22141
更新日期:2009-12-15 00:00:00
abstract::Antibody therapy has become standard of care for adult B cell lymphoma patients. It is a potentially less toxic and more targeted approach for lymphoma therapy and should therefore be applied to treat pediatric B cell lymphoma patients as well. In pediatric lymphoma patients, however, clinical experience with monoclon...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章,评审
doi:10.1002/pbc.25193
更新日期:2014-12-01 00:00:00
abstract:BACKGROUND:Previous studies have found that parents of children with cancer desire more prognostic information than is often given even when prognosis is poor. We explored in audio-recorded consultations the kinds of information they seek. METHODS:Ethnographic study including observation and audio recording of consult...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章
doi:10.1002/pbc.28802
更新日期:2021-03-01 00:00:00
abstract:BACKGROUND:The purpose of our study was to assess long-term cause-specific mortality of 5-year childhood cancer survivors. PROCEDURE:The study population consisted of 1,378 patients who had been treated for childhood cancer in The Netherlands between 1966 and 1996 and survived at least 5 years; follow-up was complete ...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章
doi:10.1002/pbc.20028
更新日期:2004-06-01 00:00:00
abstract:BACKGROUND:Although chemotherapy has improved outcome of osteosarcoma, 30-40% of patients succumb to this disease. Survivors experience substantial morbidity and mortality from anthracycline-induced cardiotoxicity. We hypothesized that the cardioprotectant dexrazoxane would (i) support escalation of the cumulative doxo...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章
doi:10.1002/pbc.25753
更新日期:2016-01-01 00:00:00
abstract::Increasingly young people survive cancer in childhood and as a result complications of its treatment are becoming more common and important. Premature ovarian failure is recognized as a complication of radiotherapy to a field that includes the pelvis and alkylating-agent-based chemotherapy. Young pre-pubertal girls ar...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章,评审
doi:10.1002/pbc.22012
更新日期:2009-08-01 00:00:00
abstract::The treatment of malignancy in cancer predisposition syndromes that also confer exquisite sensitivity to standard chemotherapy and radiation regimens remains a challenge. Bloom syndrome is one such disorder that is caused by a defect in DNA repair, predisposing to the development of early-onset age-related medical con...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章
doi:10.1002/pbc.28815
更新日期:2021-02-01 00:00:00
abstract:BACKGROUND:Little is known about the effects of chemotherapy on patient antibody titers to vaccine-preventable infectious diseases; thus, there is no standard protocol for revaccinating post-chemotherapy patients. PROCEDURES:To assess losses of detectable antibody titers due to chemotherapy, we retrospectively examine...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章
doi:10.1002/pbc.21277
更新日期:2007-10-15 00:00:00
abstract:BACKGROUND:In malaria-endemic countries in West Africa, sickle cell disease (SCD) contributes to childhood mortality. Historically, Liberia had regions wherein hemoglobin S and beta-thalassemia trait were mutually exclusive. Data on hemoglobinopathies in the Monrovia, the capital, are outdated and do not reflect urban ...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章
doi:10.1002/pbc.25875
更新日期:2016-04-01 00:00:00
abstract::We describe 12 pediatric patients (8-16 years) with primary refractory (N = 6) or first relapse (N = 6) Hodgkin lymphoma (HL) treated with ifosfamide, gemcitabine, and vinorelbine (IGEV). The overall response rate to IGEV was 100%, with seven (58%) complete responses (CR) and five (42%) partial responses. Successful C...
journal_title:Pediatric blood & cancer
pub_type: 临床试验,杂志文章
doi:10.1002/pbc.28167
更新日期:2020-04-01 00:00:00
abstract:BACKGROUND:Childhood acute lymphoblastic leukemia (ALL) survivors' increased risk for adverse health outcomes could be mitigated through consuming a balanced diet. Nonetheless, >70% of adult survivors do not meet survivorship dietary recommendations. ALL treatment may amplify risk for restricted dietary preferences (pi...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章
doi:10.1002/pbc.28811
更新日期:2020-12-31 00:00:00
abstract:BACKGROUND:Hepatic veno-occlusive disease (VOD) is one of the most serious complications in stem cell transplantation (SCT). Although plasma protein C activity decreases in VOD after SCT, the timeframe of plasma protein C activity decreases during SCT is not known. PROCEDURE:We examined levels of plasma protein C seri...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章
doi:10.1002/pbc.22314
更新日期:2010-03-01 00:00:00
abstract::Minimal residual disease (MRD) is an independent predictor of relapse risk in children with leukemia and is widely used for risk-adapted treatment. This article summarizes current evidence supporting the use of MRD, including clinical significance, current international clinical practice, impact statement, and recomme...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章,实务指引,评审
doi:10.1002/pbc.25939
更新日期:2016-06-01 00:00:00
abstract:BACKGROUND:Pediatric venous thromboembolism (VTE) is an increasingly common problem. We hypothesized that VTE occurs most commonly in tertiary care settings and that the pattern of associated illnesses may have changed from earlier reports. METHODS:The Kids' Inpatient Database 2006 was utilized to identify children ≤ ...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章
doi:10.1002/pbc.23388
更新日期:2012-08-01 00:00:00
abstract:BACKGROUND:Kaposi sarcoma (KS) is the most common HIV-associated malignancy in sub-Saharan Africa. The presentation and outcomes of pediatric KS are not well understood. PROCEDURE:We performed a retrospective cohort analysis of 81 HIV-infected children with KS at the Baylor Children's Clinical Centres of Excellence in...
journal_title:Pediatric blood & cancer
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1002/pbc.24516
更新日期:2013-08-01 00:00:00
abstract:PURPOSE:Chemotherapy during radiation and/or bone-seeking radioisotope therapy (153-samarium; 1 mCi/kg) during radiation may improve osteosarcoma cancer control. PATIENTS AND METHODS:We analyzed our preliminary radiation experience in high-risk, metastatic, and/or recurrent patients during a consecutive period of 20 m...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章
doi:10.1002/pbc.21451
更新日期:2008-05-01 00:00:00
abstract:BACKGROUND:Physical fitness is an important determinant of quality of life (QOL) after hematopoietic stem cell transplantation. Cardiac function can influence exercise performance. The aim of this study was to assess these factors and their interrelationship. PROCEDURE:Children underwent cardiopulmonary exercise testi...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章
doi:10.1002/pbc.27499
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND:The role of local analgesics for lumbar punctures (LPs) in pediatric oncology patients has not been specifically studied. AIM:To compare the efficacy of eutectic mixture of local anesthetics (EMLA) cream to 1% lidocaine injection for LPs. METHOD:This was a retrospective observational study of all patients ...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章
doi:10.1002/pbc.27957
更新日期:2019-11-01 00:00:00
abstract::Rhabdomyosarcoma arising within a congenital cystic adenomatoid malformation (CCAM) is an unusual entity. The patient underwent a lobectomy of his right lower lobe of lung due to a CCAM at the age of two. One year later, he developed a solid embryonal rhabdomyosarcoma at the same location. He received 1-year period ch...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章
doi:10.1002/pbc.20481
更新日期:2005-11-01 00:00:00
abstract:BACKGROUND:A lack of access to methotrexate levels is common in low- and middle-income countries (LMIC), relevant for 80% of children with cancer worldwide. We evaluated whether high-dose methotrexate (HD-MTX) can be administered safely with extended hydration and leucovorin rescue, with monitoring of serum creatinine ...
journal_title:Pediatric blood & cancer
pub_type: 临床试验,杂志文章
doi:10.1002/pbc.27241
更新日期:2018-12-01 00:00:00
abstract::Neuroblastoma is the most common extracranial solid tumor of childhood, and the outcomes for children with high-risk and relapsed disease remain poor. However, new international strategies for risk stratification and for treatment based on novel tumor targets and including immunotherapy are being employed in attempts ...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章,评审
doi:10.1002/pbc.24116
更新日期:2012-07-01 00:00:00
abstract::The majority of children with cancer live in low- and middle-income countries (LMICs) with little or no access to cancer treatment. The purpose of the paper is to describe the current status of childhood cancer treatment in Africa, as documented in publications, dedicated websites and information collected through sur...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章,评审
doi:10.1002/pbc.24845
更新日期:2014-04-01 00:00:00
abstract:BACKGROUND:ABT-751, an orally bioavailable sulfonamide, binds beta-tubulin to inhibit microtubule polymerization. We described response and event-free survival (EFS) in children with neuroblastoma and other solid tumors receiving ABT-751, assessed in vitro cytotoxicity of ABT-751 and evaluated the effect of ABT-751 on ...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章
doi:10.1002/pbc.22267
更新日期:2010-01-01 00:00:00
abstract::A 6-year-old male with chronic granulomatous disease, who was transplanted with bone marrow and exhibited increasing mixed chimerism, subsequently received two donor lymphocyte infusions (DLI). Two weeks after the second DLI, the patient developed acute graft-versus-host disease (GVHD) and progressive pancytopenia tha...
journal_title:Pediatric blood & cancer
pub_type: 杂志文章
doi:10.1002/pbc.22280
更新日期:2010-02-01 00:00:00