RESUMO
OBJECTIVE: To characterize barriers to and facilitators of successful iron therapy in young children with iron deficiency anemia (IDA) from an in-depth parental perspective. STUDY DESIGN: Prospective, mixed methods study of children age 9 months to 4 years with a diagnosis of nutritional IDA by clinical history and laboratory criteria and their parents. Clinical data were obtained from the electronic health record. Semistructured interviews focused on knowledge of IDA, clinical effects, experience with iron therapies, and motivation were conducted with the parent who identified as the child's primary caregiver. RESULTS: Twenty patient-parent dyads completed the study; 80% (n = 16) identified as Hispanic/Latino (white). Patients' median age was 23 months (50% male); median initial hemoglobin concentration was 8.2 g/dL and duration of oral iron therapy was 3 months. Parents' median age was 29 years (85% female); 8 interviews (40%) were conducted in Spanish. Barriers included difficulty in administering oral iron owing to side effects and poor taste. Facilitators included provision of specific instructions; support from healthcare providers and additional caregivers at home; motivation to benefit child's health, which was strengthened by strong emotional reactions (ie, stress, anxiety) to therapy and follow-up; and an appreciation of child's improvement with successful completion of therapy. CONCLUSIONS: Our findings support the need for interventions designed to promote oral iron adherence in children with IDA. Rather than focusing on knowledge content related to IDA, interventions should aim to increase parental motivation by emphasizing the health benefits of adhering to iron therapy and avoiding more invasive interventions.
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Anemia Ferropriva/tratamento farmacológico , Ferro/administração & dosagem , Administração Oral , Adulto , Pré-Escolar , Feminino , Acessibilidade aos Serviços de Saúde , Humanos , Lactente , Masculino , Pais , Estudos ProspectivosRESUMO
INTRODUCTION: The Joint Outcome Study (JOS) demonstrated that previously untreated children with severe haemophilia A treated with prophylactic factor VIII (FVIII) concentrate had superior joint outcomes at age 6 years compared to those children treated episodically for bleeding. However, variation in joint outcome within each treatment arm was not well explained. AIM: In this study, we sought to better understand variation in joint outcomes at age 6 years in participants of the JOS. METHODS: We evaluated the influence of FVIII half-life, treatment adherence, constitutional coagulant and anticoagulant proteins, and global assays on joint outcomes (number of joint bleeds, total number of bleeds, total MRI score and joint physical exam score). Logistic regression was used to evaluate the association of variables with joint failure status on MRI, defined as presence of subchondral cyst, surface erosion or joint-space narrowing. Each parameter was also correlated with each joint outcome using Spearman correlations. RESULTS: Prophylaxis treatment arm and FVIII trough were each found to reduce risk of joint failure on univariate logistic regression analysis. When controlling for treatment arm, FVIII trough was no longer significant, likely because of the high level of covariation between these variables. We found no consistent correlation between any laboratory assay performed and any joint outcome parameter measured. CONCLUSION: In the JOS, the effect of prescribed prophylactic FVIII infusions on joint outcome overshadowed the contribution of treatment adherence, FVIII half-life, global assays of coagulation and constitutional coagulation proteins. (ClinicalTrials.gov number, NCT00207597).
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Fator VIII/uso terapêutico , Hemofilia A/complicações , Hemofilia A/tratamento farmacológico , Artropatias/etiologia , Fator VIII/farmacologia , Feminino , Hemofilia A/patologia , Hemostasia , Humanos , MasculinoRESUMO
Immune thrombocytopenia (ITP) is an autoimmune bleeding disorder with isolated thrombocytopenia and hemorrhagic risk. While many children with ITP can be safely observed, treatments are often needed for various reasons, including to decrease bleeding, or to improve health related quality of life (HRQoL). There are a number of available second-line treatments, including rituximab, thrombopoietin-receptor agonists, oral immunosuppressive agents, and splenectomy, but data comparing treatment outcomes are lacking. ICON1 is a prospective, multi-center, observational study of 120 children starting second-line treatments for ITP designed to compare treatment outcomes including platelet count, bleeding, and HRQoL utilizing the Kids ITP Tool (KIT). While all treatments resulted in increased platelet counts, romiplostim had the most pronounced effect at 6 months (P = .04). Only patients on romiplostim and rituximab had a significant reduction in both skin-related (84% to 48%, P = .01 and 81% to 43%, P = .004) and non-skin-related bleeding symptoms (58% to 14%, P = .0001 and 54% to 17%, P = .0006) after 1 month of treatment. HRQoL significantly improved on all treatments. However, only patients treated with eltrombopag had a median improvement in KIT scores at 1 month that met the minimal important difference (MID). Bleeding, platelet count, and HRQoL improved in each treatment group, but the extent and timing of the effect varied among treatments. These results are hypothesis generating and help to improve our understanding of the effect of each treatment on specific patient outcomes. Combined with future randomized trials, these findings will help clinicians select the optimal second-line treatment for an individual child with ITP.
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Púrpura Trombocitopênica Idiopática , Qualidade de Vida , Receptores Fc/administração & dosagem , Proteínas Recombinantes de Fusão/administração & dosagem , Rituximab/administração & dosagem , Trombopoetina/administração & dosagem , Adolescente , Criança , Pré-Escolar , Intervalo Livre de Doença , Feminino , Humanos , Lactente , Masculino , Contagem de Plaquetas , Estudos Prospectivos , Púrpura Trombocitopênica Idiopática/sangue , Púrpura Trombocitopênica Idiopática/tratamento farmacológico , Taxa de Sobrevida , Fatores de TempoRESUMO
Immune thrombocytopenia (ITP) is an acquired autoimmune bleeding disorder which presents with isolated thrombocytopenia and risk of hemorrhage. While most children with ITP promptly recover with or without drug therapy, ITP is persistent or chronic in others. When needed, how to select second-line therapies is not clear. ICON1, conducted within the Pediatric ITP Consortium of North America (ICON), is a prospective, observational, longitudinal cohort study of 120 children from 21 centers starting second-line treatments for ITP which examined treatment decisions. Treating physicians reported reasons for selecting therapies, ranking the top three. In a propensity weighted model, the most important factors were patient/parental preference (53%) and treatment-related factors: side effect profile (58%), long-term toxicity (54%), ease of administration (46%), possibility of remission (45%), and perceived efficacy (30%). Physician, health system, and clinical factors rarely influenced decision-making. Patient/parent preferences were selected as reasons more often in chronic ITP (85.7%) than in newly diagnosed (0%) or persistent ITP (14.3%, P = .003). Splenectomy and rituximab were chosen for the possibility of inducing long-term remission (P < .001). Oral agents, such as eltrombopag and immunosuppressants, were chosen for ease of administration and expected adherence (P < .001). Physicians chose rituximab in patients with lower expected adherence (P = .017). Treatment choice showed some physician and treatment center bias. This study illustrates the complexity and many factors involved in decision-making in selecting second-line ITP treatments, given the absence of comparative trials. It highlights shared decision-making and the need for well-conducted, comparative effectiveness studies to allow for informed discussion between patients and clinicians.
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Tomada de Decisão Clínica , Púrpura Trombocitopênica Idiopática/tratamento farmacológico , Criança , Tomada de Decisões , Feminino , Humanos , Imunossupressores/uso terapêutico , Masculino , Médicos/psicologia , Rituximab/uso terapêutico , EsplenectomiaRESUMO
OBJECTIVE: To assess the benefits and risks of intravenous (IV) ferric carboxymaltose (FCM) in children with iron deficiency anemia (IDA). STUDY DESIGN: In a retrospective cohort study of patients seen at our center, we identified all FCM infusions in children with IDA over a 12-month period through a query of pharmacy records. Clinical data, including hematologic response and adverse effects, were extracted from the electronic medical record. RESULTS: A total of 116 IV FCM infusions were administered to 72 patients with IDA refractory to oral iron treatment (median age, 13.7 years; range, 9 months to 18 years). Median preinfusion and postinfusion hemoglobin values were 9.1 g/dL and 12.3 g/dL, respectively (at 4-12 weeks after the initial infusion; n = 53). Sixty-five patients (84%) experienced no adverse effects. Minor transient complications were encountered during or immediately after 7 infusions. CONCLUSION: FCM administered as a short IV infusion without a test dose proved to be safe and highly effective in a small yet diverse population of infants, children, and adolescents with IDA refractory to oral iron therapy.
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Anemia Ferropriva/tratamento farmacológico , Compostos Férricos/administração & dosagem , Maltose/análogos & derivados , Administração Oral , Adolescente , Criança , Pré-Escolar , Estudos de Coortes , Feminino , Humanos , Lactente , Infusões Intravenosas , Ferro/administração & dosagem , Masculino , Maltose/administração & dosagem , Estudos Retrospectivos , Resultado do TratamentoRESUMO
BACKGROUND: Relationships between clinical/demographic factors and health-related quality of life (HRQoL) in childhood immune thrombocytopenia (ITP) remain poorly understood. Recent studies reveal conflicting information about factors that contribute to HRQoL. METHODS: This was a prospective, single-institution, cohort study of newly diagnosed children with ITP. Serial evaluations of HRQoL were performed using the Kid's ITP Tools (KIT), scored from 0 (worst) to 100 (best), at enrollment and 1 week, 6 months, and 12 months following diagnosis. All visits included bleeding severity grading. Relationships between HRQoL and platelet count, treatment, bleeding severity, and course of disease were examined. RESULTS: A total of 99 children with newly diagnosed ITP were evaluable for analysis. KIT scores were low at diagnosis for parents (median 26, range 15-43) and children (median 65, range 55-81) and were not influenced by age or platelet count. At diagnosis, children who received treatment had lower platelet counts (P = 0.005), more severe hemorrhage (P < 0.0125), and lower HRQoL by parent, child, and proxy reporting (P < 0.05). Oral bleeding negatively impacted proxy-reported disease burden at diagnosis (P = 0.01). Persistence of disease and lower platelet counts at 6 and 12 month visits were the only factors noted to consistently impact quality of life beyond diagnosis for both parents and children. CONCLUSIONS: HRQoL is low at diagnosis but significantly improves over time. Patients with ongoing disease and lower platelet counts continue to have significant disease burden.
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Púrpura Trombocitopênica Idiopática/complicações , Qualidade de Vida , Adolescente , Criança , Pré-Escolar , Estudos de Coortes , Feminino , Humanos , Masculino , Estudos Prospectivos , Púrpura Trombocitopênica Idiopática/terapia , Inquéritos e Questionários , TexasRESUMO
Importance: Iron-deficiency anemia (IDA) affects millions of persons worldwide, and is associated with impaired neurodevelopment in infants and children. Ferrous sulfate is the most commonly prescribed oral iron despite iron polysaccharide complex possibly being better tolerated. Objective: To compare the effect of ferrous sulfate with iron polysaccharide complex on hemoglobin concentration in infants and children with nutritional IDA. Design, Setting, and Participants: Double-blind, superiority randomized clinical trial of infants and children aged 9 to 48 months with nutritional IDA (assessed by history and laboratory criteria) that was conducted in an outpatient hematology clinic at a US tertiary care hospital from September 2013 through November 2015; 12-week follow-up ended in January 2016. Interventions: Three mg/kg of elemental iron once daily as either ferrous sulfate drops or iron polysaccharide complex drops for 12 weeks. Main Outcomes and Measures: Primary outcome was change in hemoglobin over 12 weeks. Secondary outcomes included complete resolution of IDA (defined as hemoglobin concentration >11 g/dL, mean corpuscular volume >70 fL, reticulocyte hemoglobin equivalent >25 pg, serum ferritin level >15 ng/mL, and total iron-binding capacity <425 µg/dL at the 12-week visit), changes in serum ferritin level and total iron-binding capacity, adverse effects. Results: Of 80 randomized infants and children (median age, 22 months; 55% male; 61% Hispanic white; 40 per group), 59 completed the trial (28 [70%] in ferrous sulfate group; 31 [78%] in iron polysaccharide complex group). From baseline to 12 weeks, mean hemoglobin increased from 7.9 to 11.9 g/dL (ferrous sulfate group) vs 7.7 to 11.1 g/dL (iron complex group), a greater difference of 1.0 g/dL (95% CI, 0.4 to 1.6 g/dL; P < .001) with ferrous sulfate (based on a linear mixed model). Proportion with a complete resolution of IDA was higher in the ferrous sulfate group (29% vs 6%; P = .04). Median serum ferritin level increased from 3.0 to 15.6 ng/mL (ferrous sulfate) vs 2.0 to 7.5 ng/mL (iron complex) over 12 weeks, a greater difference of 10.2 ng/mL (95% CI, 6.2 to 14.1 ng/mL; P < .001) with ferrous sulfate. Mean total iron-binding capacity decreased from 501 to 389 µg/dL (ferrous sulfate) vs 506 to 417 µg/dL (iron complex) (a greater difference of -50 µg/dL [95% CI, -86 to -14 µg/dL] with ferrous sulfate; P < .001). There were more reports of diarrhea in the iron complex group than in the ferrous sulfate group (58% vs 35%, respectively; P = .04). Conclusions and Relevance: Among infants and children aged 9 to 48 months with nutritional iron-deficiency anemia, ferrous sulfate compared with iron polysaccharide complex resulted in a greater increase in hemoglobin concentration at 12 weeks. Once daily, low-dose ferrous sulfate should be considered for children with nutritional iron-deficiency anemia. Trial Registration: clinicaltrials.gov Identifier: NCT01904864.
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Anemia Ferropriva/sangue , Anemia Ferropriva/tratamento farmacológico , Transtornos da Nutrição Infantil/complicações , Compostos Ferrosos/farmacologia , Hemoglobina A/efeitos dos fármacos , Compostos de Ferro/farmacologia , Polissacarídeos/farmacologia , Anemia Ferropriva/etiologia , Pré-Escolar , Método Duplo-Cego , Feminino , Ferritinas/sangue , Compostos Ferrosos/administração & dosagem , Compostos Ferrosos/efeitos adversos , Hemoglobina A/metabolismo , Humanos , Lactente , Ferro/metabolismo , Compostos de Ferro/administração & dosagem , Compostos de Ferro/efeitos adversos , Perda de Seguimento , Masculino , Adesão à Medicação/estatística & dados numéricos , Polissacarídeos/administração & dosagem , Polissacarídeos/efeitos adversos , Resultado do TratamentoRESUMO
In this issue of Blood, Steinberg et al describe the clinical importance of the distribution or "packaging" of fetal hemoglobin (HbF) within erythrocytes of persons with sickle cell anemia.
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Anemia Falciforme/imunologia , Anemia Falciforme/terapia , Hemoglobina Fetal/imunologia , HumanosRESUMO
Little is known about the frequency and significance of clinically unapparent or occult hemorrhage in ITP. Therefore, we prospectively explored the sites and frequency of occult bleeding in children with severe ITP at diagnosis or upon symptomatic relapse in a prospective, single-institution cohort study of patients ≤ 18 years of age and a platelet count ≤ 10,000/mm(3) . Data collected included bleeding severity assessment, urinalysis, fecal occult blood testing, and non-contrast brain MRI. Stool and urine samples were tested within 7 days of diagnosis or symptomatic relapse. Three months after diagnosis or relapse a noncontrast brain MRI evaluated hemosiderin deposits resulting from prior localized hemorrhage. Fifty-two ITP patients were enrolled with a mean platelet count of 4,000/mm(3) . A significant occurrence of occult hemorrhage was identified in the urine (27%) compared with clinically overt hematuria (0.91%, P < 0.0005). CNS microbleeding in the superficial cortex of the left frontal lobe was identified in one child with occult bleeding in the urinary tract. There was no relationship between occult hemorrhage and bleeding manifestations on physical examination. Occult hemorrhage was not a harbinger of subsequent bleeding. Our findings suggest that occult hemorrhage occurs with greater frequency than overt bleeding in children with severe ITP. CNS microbleeding is a potential risk in this patient population. Assessment of brain microbleeds and microscopic hematuria in this patient population require additional study.
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Hemorragias Intracranianas/sangue , Púrpura Trombocitopênica Idiopática/sangue , Adolescente , Criança , Pré-Escolar , Feminino , Hemorragia/sangue , Hemorragia/epidemiologia , Hemorragia/etiologia , Humanos , Lactente , Hemorragias Intracranianas/epidemiologia , Hemorragias Intracranianas/etiologia , Imageamento por Ressonância Magnética , Masculino , Contagem de Plaquetas , Estudos Prospectivos , Púrpura Trombocitopênica Idiopática/complicações , Púrpura Trombocitopênica Idiopática/epidemiologiaRESUMO
Limited high-quality evidence supports the management of iron deficiency anemia (IDA). To assess our institutional performance in this area, we retrospectively reviewed IDA treatment practices in 195 consecutive children referred to our center from 2006 to mid-2010. The majority of children were ≤4 years old (64%) and had nutritional IDA (74%). In 11- to 18-year-old patients (31%), the primary etiology was menorrhagia (42%). Many were referred directly to the emergency department and/or prescribed iron doses outside the recommended range. Poor medication adherence and being lost-to-follow-up were common. Substantial improvements are required in the management of IDA.
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Anemia Ferropriva/diagnóstico , Anemia Ferropriva/tratamento farmacológico , Ferro/administração & dosagem , Adolescente , Anemia Ferropriva/etiologia , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Estudos RetrospectivosRESUMO
Long-term follow-up of children with immune thrombocytopenia (ITP) indicates that the majority undergo remission and severe thrombocytopenia is infrequent. Details regarding bleeding manifestations, however, remain poorly categorized. We report here long-term data from the Intercontinental Cooperative ITP Study Group Registry II focusing on natural history, bleeding manifestations, and management. Data on 1345 subjects were collected at diagnosis and at 28 days, 6, 12, and 24 months thereafter. Median platelet counts were 214 × 10(9)/L (interquartile range [IQR] 227, range 1-748), 211 × 10(9)/L (IQR 192, range 1-594), and 215 × 10(9)/L (IQR 198, range 1-598) at 6, 12, and 24 months, respectively, and a platelet count <20 × 10(9)/L was uncommon (7%, 7%, and 4%, respectively). Remission occurred in 37% of patients between 28 days and 6 months, 16% between 6 and 12 months, and 24% between 12 and 24 months. There were no reports of intracranial hemorrhage, and the most common site of bleeding was skin. In patients with severe thrombocytopenia we observed a trend toward more drug treatment with increasing number of bleeding sites. Our data support that ITP is a benign condition for most affected children and that major hemorrhage, even with prolonged severe thrombocytopenia, is rare.
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Hemorragia/imunologia , Hemorragia/terapia , Púrpura Trombocitopênica Idiopática/imunologia , Púrpura Trombocitopênica Idiopática/terapia , Sistema de Registros/estatística & dados numéricos , Doença Aguda , Criança , Pré-Escolar , Doença Crônica , Terapia Combinada , Feminino , Seguimentos , Humanos , Imunoglobulinas Intravenosas/uso terapêutico , Lactente , Agências Internacionais , Masculino , Contagem de Plaquetas , Transfusão de Plaquetas , Estudos Prospectivos , Indução de Remissão , Estudos Retrospectivos , Índice de Gravidade de Doença , Esplenectomia , Esteroides/uso terapêuticoRESUMO
BACKGROUND: Iron deficiency anemia (IDA) is the most common hematologic condition in children and adolescents in the United States (US). No prior reports have described the management of IDA by a large cohort of pediatric hematology/oncology specialists. PROCEDURE: A 20-question electronic survey that solicited responses to two hypothetical cases of IDA was sent to active members of the American Society of Pediatric Hematology/Oncology (ASPHO) in the US. RESULTS: Of 1,217 recipients, 398 (32.7%) reported regularly treating IDA and completed the survey. In a toddler with nutritional IDA, 15% (N = 61) of respondents reported ordering no diagnostic test beyond a complete blood count. Otherwise, wide variability in laboratory testing was reported. For treatment, most respondents would prescribe ferrous sulfate (N = 335, 84%) dosed at 6 mg/kg/day (N = 248, 62%) divided twice daily (N = 272, 68%). The recommended duration of iron treatment after resolution of anemia and normalized serum ferritin varied widely from 0 to 3 months. For an adolescent with heavy menstrual bleeding and IDA, most respondents recommended ferrous sulfate (N = 327, 83%), with dosing based on the number of tablets daily. For IDA refractory to oral treatment, intravenous iron therapy was recommended most frequently, 48% (N = 188) using iron sucrose, 17% (N = 68) ferric gluconate, and 15% (N = 60) low molecular weight iron dextran. CONCLUSION: The approach to diagnosis and treatment of IDA in childhood was widely variable among responding ASPHO members. Given the lack of an evidence base to guide clinical decision making, further research investigating IDA management is needed.
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Anemia Ferropriva/prevenção & controle , Hematologia , Ferro/administração & dosagem , Oncologia , Adolescente , Anemia Ferropriva/sangue , Estudos Transversais , Gerenciamento Clínico , Feminino , Ferritinas/sangue , Seguimentos , Humanos , Lactente , Deficiências de Ferro , Masculino , Prognóstico , Especialização , Inquéritos e QuestionáriosRESUMO
BACKGROUND: Treatment of chronic severe pediatric ITP is not well studied. In a phase 1/2 12-16-week study, 15/17 romiplostim-treated patients achieved platelet counts ≥50 × 109 /L, and romiplostim treatment was well tolerated. In a subsequent open-label extension (≤109 weeks), 20/22 patients received romiplostim; all achieved platelet counts >50 × 109 /L. Twelve patients continued in a second extension (≤127 weeks). Longitudinal data from start of romiplostim treatment through the two extensions were evaluated to investigate the safety and efficacy of long-term romiplostim treatment in chronic severe pediatric ITP. PROCEDURE: Patients received weekly subcutaneous romiplostim, adjusted by 1 µg/kg/week to maintain platelet counts (50-200 × 109 /L, maximum dose 10 µg/kg). Bone marrow examinations were not required. RESULTS: At baseline, patients were median age 10.0 years; median ITP duration 2.4 years; median platelet count 13 × 109 /L; 73% were male; and 36% had prior splenectomy. Median romiplostim treatment duration was 167 weeks (Q1, Q3: 78,227 weeks), and median average weekly dose was 5.4 µg/kg (Q1, Q3: 4.3, 8.0 µg/kg). Seven patients discontinued treatment: four withdrew consent, two were noncompliant, and one received alternative therapy. None withdrew because of adverse events (AEs). After the first 12 weeks, median platelet counts remained >50 × 109 /L. Eight (36.4%) patients received rescue medication, and 14 (63.6%) used concurrent ITP therapy. Seven patients (31.8%) reported serious AEs, and two (9.1%) reported life-threatening AEs (both thrombocytopenia); there were no serious AEs attributed to treatment and no fatalities. CONCLUSIONS: Long-term romiplostim treatment in this small cohort increased and maintained platelet counts for over 4 years in children with ITP with good tolerability and without significant toxicity. Pediatr Blood Cancer 2015;62:208-213. © 2014. The Authors. Pediatr Blood & Cancer published by Wiley Periodicals, Inc.
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Plaquetas/efeitos dos fármacos , Púrpura Trombocitopênica Idiopática/tratamento farmacológico , Receptores Fc/uso terapêutico , Receptores de Trombopoetina/agonistas , Proteínas Recombinantes de Fusão/uso terapêutico , Trombopoetina/uso terapêutico , Adolescente , Criança , Pré-Escolar , Doença Crônica , Feminino , Humanos , Lactente , Estudos Longitudinais , Masculino , Contagem de Plaquetas , Proteínas Recombinantes de Fusão/efeitos adversos , Trombopoetina/efeitos adversos , Resultado do TratamentoRESUMO
We surveyed 278 pediatric hematologists/oncologists regarding how children with immune thrombocytopenia (ITP) are counseled for participation in sports. Results show substantial variation in physician perception of contact risk for different sports, and the advice offered about restriction of sport activities of affected children. Many physicians recommend restriction of sports when platelet counts are under 50 × 10(9) /L. Such restriction may affect the child's quality of life despite their having an overall benign disease.
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Desempenho Atlético , Púrpura Trombocitopênica Idiopática/sangue , Qualidade de Vida , Adolescente , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Contagem de Plaquetas , Púrpura Trombocitopênica Idiopática/terapiaRESUMO
We hypothesized that the silent cerebral infarcts (SCI), which affect up to 40% of children with sickle cell disease (SCD), could occur in the setting of acute anemic events. In a prospective observational study of children with and without SCD hospitalized for an illness associated with acute anemia, we identified acute silent cerebral ischemic events (ASCIE) in 4 (18.2%) of 22 with SCD and in 2 (6.7%) of 30 without SCD, using diffusion-weighted magnetic resonance imaging. Children with ASCIE had lower hemoglobin concentration than those without (median 3.1 vs 4.4 g/dL, P = .003). The unique temporal features of stroke on diffusion-weighted magnetic resonance imaging permit estimation of incidence rates for ASCIE of 421 (95% confidence interval, 155-920) per 100 patient-years during acute anemic events for all patients. For children with SCD, the estimated incidence was 663 (95% confidence interval, 182-1707) which is much higher than previously reported. Acute anemic events are common in children with SCD and prevalence could partially account for the high SCI. Some ASCIE (1 of 4 in our study) may be reversible. Alterations in management may be warranted for children with severe anemia to identify unrecognized ischemic brain injury that may have permanent neurocognitive sequelae.
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Anemia/complicações , Isquemia Encefálica/etiologia , Adolescente , Anemia/etiologia , Anemia Falciforme/complicações , Isquemia Encefálica/diagnóstico , Isquemia Encefálica/epidemiologia , Infarto Cerebral/diagnóstico , Infarto Cerebral/epidemiologia , Infarto Cerebral/etiologia , Criança , Pré-Escolar , Feminino , Humanos , Incidência , Imageamento por Ressonância Magnética , Masculino , Neuroimagem , Estudos Prospectivos , Acidente Vascular Cerebral/diagnóstico , Acidente Vascular Cerebral/epidemiologia , Acidente Vascular Cerebral/etiologiaRESUMO
Alopecia areata (AA) and immune thrombocytopenia (ITP) are autoimmune conditions occasionally encountered by pediatricians, but their simultaneous occurrence is rare. We describe here a 7-year-old female who acutely developed both AA and ITP. Within 3 months both conditions resolved spontaneously, suggesting a pathophysiologic relationship.
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Alopecia em Áreas/complicações , Púrpura Trombocitopênica Idiopática/complicações , Criança , Feminino , HumanosRESUMO
Children with sickle cell disease (SCD) are repeatedly exposed to diagnostic radiation. We identified 938 children with SCD who had 9,246 radiographic tests. Mean number of tests/patient was 9.9 (95% CI: 8.9-10.9) over 8,817 patient-years. Mean rate was 1.5 tests/year (95% CI: 1.3-1.6). On average, a child with SCD will have 26.7 (95% CI: 24.1-29.3) radiographic tests by 18 years of age, and 5% will have ≥100 tests. Six percent have ≥3 CT scans, which may be associated with an increased risk of cancer. Strong consideration should be given to limiting the exposure of children with SCD to radiation.
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Anemia Falciforme/diagnóstico por imagem , Tomografia Computadorizada por Raios X/efeitos adversos , Adolescente , Adulto , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Estudos Retrospectivos , Tomografia Computadorizada por Raios X/métodosRESUMO
BACKGROUND: Kidney disease is an important cause of morbidity and mortality in patients with sickle cell anemia (SCA). The factors that affect progression of renal disease are unknown, especially in children and adolescents. Alterations in blood pressure, including hypertension and lack of the normal nocturnal dip in blood pressure, are important determinants of diabetic nephropathy and other renal diseases and may play a role in sickle cell nephropathy. Our primary hypothesis was that children with SCA who have microalbuminuria will demonstrate less nocturnal dipping of blood pressure compared to patients without microalbuminuria. We also investigated other potential factors associated with microalbuminuria. PROCEDURE: This prospective study of 52 adolescents with SCA followed in the Children's Medical Center Dallas Comprehensive Sickle Cell Center characterized 24-hour ambulatory blood pressure profiles and presence of microalbuminuria. Stepwise logistic regression was performed to identify significant independent factors that are associated with microalbuminuria. RESULTS: Thirty-five percent of patients were identified as having previously unrecognized hypertension, and 17% had pre-hypertension (blood pressure greater than the 90th percentile but less than the 95th percentile). Fifty-six percent of patients lacked the normal nocturnal dip in blood pressure. In addition, 21% had microalbuminuria, and their percent nocturnal dip was significantly less than those without microalbuminuria (P = 0.01). CONCLUSIONS: Blood pressure abnormalities are common in adolescents with SCA and are a possible modifiable risk factor in the progression of sickle cell nephropathy.
Assuntos
Anemia Falciforme/complicações , Hipertensão/epidemiologia , Adolescente , Albuminúria/epidemiologia , Anemia Falciforme/fisiopatologia , Pressão Sanguínea , Monitorização Ambulatorial da Pressão Arterial , Criança , Feminino , Taxa de Filtração Glomerular , Humanos , Modelos Logísticos , Masculino , Estudos ProspectivosRESUMO
IMPORTANCE: Sickle cell disease (SCD) is a life-threatening genetic disorder affecting nearly 100,000 individuals in the United States and is associated with many acute and chronic complications requiring immediate medical attention. Two disease-modifying therapies, hydroxyurea and long-term blood transfusions, are available but underused. OBJECTIVE: To support and expand the number of health professionals able and willing to provide care for persons with SCD. EVIDENCE REVIEW: Databases of MEDLINE (including in-process and other nonindexed citations), EMBASE, Cochrane Database of Systematic Reviews, Cochrane Central Register of Controlled Trials, CINAHL, TOXLINE, and Scopus were searched using prespecified search terms and keywords to identify randomized clinical trials, nonrandomized intervention studies, and observational studies. Literature searches of English-language publications from 1980 with updates through April 1, 2014, addressed key questions developed by the expert panel members and methodologists. FINDINGS: Strong recommendations for preventive services include daily oral prophylactic penicillin up to the age of 5 years, annual transcranial Doppler examinations from the ages of 2 to 16 years in those with sickle cell anemia, and long-term transfusion therapy to prevent stroke in those children with abnormal transcranial Doppler velocity (≥200 cm/s). Strong recommendations addressing acute complications include rapid initiation of opioids for treatment of severe pain associated with a vasoocclusive crisis, and use of incentive spirometry in patients hospitalized for a vasoocclusive crisis. Strong recommendations for chronic complications include use of analgesics and physical therapy for treatment of avascular necrosis, and use of angiotensin-converting enzyme inhibitor therapy for microalbuminuria in adults with SCD. Strong recommendations for children and adults with proliferative sickle cell retinopathy include referral to expert specialists for consideration of laser photocoagulation and for echocardiography to evaluate signs of pulmonary hypertension. Hydroxyurea therapy is strongly recommended for adults with 3 or more severe vasoocclusive crises during any 12-month period, with SCD pain or chronic anemia interfering with daily activities, or with severe or recurrent episodes of acute chest syndrome. A recommendation of moderate strength suggests offering treatment with hydroxyurea without regard to the presence of symptoms for infants, children, and adolescents. In persons with sickle cell anemia, preoperative transfusion therapy to increase hemoglobin levels to 10 g/dL is strongly recommended with a moderate strength recommendation to maintain sickle hemoglobin levels of less than 30% prior to the next transfusion during long-term transfusion therapy. A strong recommendation to assess iron overload is accompanied by a moderate strength recommendation to begin iron chelation therapy when indicated. CONCLUSIONS AND RELEVANCE: Hydroxyurea and transfusion therapy are strongly recommended for many individuals with SCD. Many other recommendations are based on quality of evidence that is less than high due to the paucity of clinical trials regarding screening, management, and monitoring for individuals with SCD.
Assuntos
Anemia Falciforme/terapia , Transfusão de Sangue , Hidroxiureia/uso terapêutico , Adolescente , Adulto , Analgésicos Opioides/uso terapêutico , Antibioticoprofilaxia , Criança , Pré-Escolar , Conferências de Consenso como Assunto , Medicina Baseada em Evidências , Humanos , Lactente , Penicilinas/uso terapêutico , Modalidades de Fisioterapia , Guias de Prática Clínica como AssuntoRESUMO
Prominent forehead hematomas, "goose-eggs," may suggest an underlying disorder of coagulation. We reviewed records of 324 children with hemophilia and confirmed that a goose-egg was the presenting feature leading to a diagnosis of hemophilia in 14 of them. Primary care providers should be aware of this unique presentation of hemophilia.