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1.
Drugs ; 78(10): 1025-1036, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-29923015

RESUMO

Lisdexamfetamine dimesylate (lisdexamfetamine; Elvanse®; Tyvense®), an orally-active dexamfetamine prodrug, is indicated in the EU for the treatment of attention-deficit hyperactivity disorder (ADHD) in children aged ≥ 6 years (including adolescents) when the response to previous methylphenidate (MPH) treatment is clinically inadequate. The original approval of the drug was based on the results of phase III trials in children and adolescents with ADHD who had an inadequate response to previous pharmacotherapy (e.g. MPH) or were treatment naïve. In these studies, short-term treatment with flexibly-dosed lisdexamfetamine demonstrated greater efficacy than atomoxetine, based on a prospective comparison, and osmotic-release oral system (OROS)-MPH, based on a post hoc comparison. Improvements in ADHD symptoms were accompanied by improvements in health-related quality of life and functioning that were maintained as long as treatment with lisdexamfetamine was continued in a long-term extension of one of these trials. In subsequent phase IV head-to-head studies in adolescents with ADHD and an inadequate response to previous pharmacotherapy, lisdexamfetamine demonstrated greater efficacy than OROS-MPH when both medications were force-titrated, but not when they were flexibly-titrated. Lisdexamfetamine was generally well tolerated, with an adverse event profile (e.g. decreased appetite, headache, weight reduction, insomnia and irritability) typical of that reported for other stimulants. Thus, lisdexamfetamine provides an alternative option for the treatment of children and/or adolescents with ADHD who have not responded adequately to previous ADHD pharmacotherapies.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Estimulantes do Sistema Nervoso Central/farmacocinética , Estimulantes do Sistema Nervoso Central/uso terapêutico , Dimesilato de Lisdexanfetamina/farmacocinética , Dimesilato de Lisdexanfetamina/uso terapêutico , Estimulantes do Sistema Nervoso Central/administração & dosagem , Estimulantes do Sistema Nervoso Central/efeitos adversos , Criança , Dextroanfetamina/farmacologia , Dextroanfetamina/uso terapêutico , Relação Dose-Resposta a Droga , Esquema de Medicação , Aprovação de Drogas , Europa (Continente) , Humanos , Dimesilato de Lisdexanfetamina/administração & dosagem , Dimesilato de Lisdexanfetamina/efeitos adversos , Metilfenidato/farmacologia , Metilfenidato/uso terapêutico , Qualidade de Vida , Resultado do Tratamento
2.
J Clin Sleep Med ; 14(3): 479-481, 2018 03 15.
Artigo em Inglês | MEDLINE | ID: mdl-29458703

RESUMO

ABSTRACT: Although there are reports of narcolepsy type 1 caused by lesions of the central nervous system, there are far fewer reports of narcolepsy type 2 (NT2) caused by discrete brain lesions. We report a case of a patient in whom NT2 was diagnosed after a viral illness, and inflammatory lesions in the right thalamus and amygdala were found. In addition, symptoms of autonomic impairment developed and postural tachycardia syndrome was subsequently diagnosed in this patient. To our knowledge this is the first reported case of NT2 resulting from central nervous system lesions in these discrete locations, as well as the first reported case of postural tachycardia syndrome associated with narcolepsy.


Assuntos
Tonsila do Cerebelo/patologia , Narcolepsia/complicações , Síndrome da Taquicardia Postural Ortostática/complicações , Tálamo/patologia , Adolescente , Antagonistas Adrenérgicos beta/uso terapêutico , Anfetamina/uso terapêutico , Tonsila do Cerebelo/diagnóstico por imagem , Estimulantes do Sistema Nervoso Central/uso terapêutico , Dextroanfetamina/uso terapêutico , Feminino , Humanos , Imageamento por Ressonância Magnética/métodos , Narcolepsia/tratamento farmacológico , Narcolepsia/fisiopatologia , Síndrome da Taquicardia Postural Ortostática/tratamento farmacológico , Síndrome da Taquicardia Postural Ortostática/fisiopatologia , Propranolol/uso terapêutico , Oxibato de Sódio/uso terapêutico , Tálamo/diagnóstico por imagem
3.
BMC Pharmacol Toxicol ; 16: 35, 2015 Dec 09.
Artigo em Inglês | MEDLINE | ID: mdl-26646429

RESUMO

BACKGROUND: Increasing recognition of Attention Deficit Hyperactivity Disorder (ADHD) among Aboriginal children, adolescents and young adults is a public health challenge. We investigated the pattern of prescription stimulants for ADHD among Aboriginal individuals in Western Australia (WA). METHODS: Using a whole-population-based linked data we followed a cohort of individuals born in WA from 1980-2005, and their parents were born in Australia, to identify stimulant prescription for ADHD derived from statutory WA stimulant prescription dispensing between 2003 and 2007. Parental link was ascertained through WA Family Connections Genealogical Linkage System. Cox proportional hazards regression (HR) models were performed to determine the association between stimulant use and Aboriginal and non-Aboriginal status. RESULTS: Of the total cohort of 186,468, around 2% (n = 3677) had prescription stimulants for ADHD. Individuals with both Aboriginal parents were two-thirds (HR 0.33, 95 % CI 0.26-0.42), and with only Aboriginal mother were one-third (HR 0.69, 95% CI 0.53-0.90) less likely to have stimulants, compared to individuals with non-Aboriginal parents. HR in Aboriginals was 62% lower (HR 0.35, 95% CI 0.25-0.49) in metropolitan areas, and 72% lower (HR 0.28, 95% CI 0.20-0.38) in non-metropolitan areas, than non-Aboriginals. The risk for simulant use was four times higher among Aboriginal boys than Aboriginal girls (HR 4.08, 95% CI, 2.92-5.69). CONCLUSION: Aboriginal cultural understanding of ADHD and attitude towards stimulant medication serve as a determinant of their access to health services. Any ADHD intervention and policy framework must take into account a holistic approach to Aboriginal culture, beliefs and individual experience to provide optimal care they need.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Estimulantes do Sistema Nervoso Central/uso terapêutico , Tratamento Farmacológico/estatística & dados numéricos , Havaiano Nativo ou Outro Ilhéu do Pacífico/estatística & dados numéricos , Medicamentos sob Prescrição/uso terapêutico , Adolescente , Criança , Pré-Escolar , Estudos de Coortes , Dextroanfetamina/uso terapêutico , Feminino , Humanos , Masculino , Metilfenidato/uso terapêutico , Modelos de Riscos Proporcionais , Fatores de Risco , Fatores Sexuais , Austrália Ocidental , Adulto Jovem
4.
Clin Exp Obstet Gynecol ; 42(3): 376-7, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26152015

RESUMO

PURPOSE: To evaluate the effect of idiopathic orthostatic edema and the effect of thyrotoxicosis on weight fluctuation and fluid retention in the presence of surgically induced panhypopituitarism and diabetes insipidus controlled with hormone replacement. MATERIALS AND METHODS: Dextroamphetamine sulfate was used for weight gain when no other etiologic factor was found. Methimazole was used when weight loss occurred when serum T4 and free T4 indicated thyrotoxicosis. RESULTS: Sympathomimetic amine therapy very effectively controlled the weight gain and methimazole controlled the weight loss. CONCLUSIONS: Hypopituitarism and diabetes insipidus controlled with hormone replacement do not protect against fluid retention from idiopathic edema.


Assuntos
Antidiuréticos/uso terapêutico , Antitireóideos/uso terapêutico , Desamino Arginina Vasopressina/uso terapêutico , Dextroanfetamina/uso terapêutico , Diabetes Insípido/tratamento farmacológico , Hipopituitarismo/tratamento farmacológico , Metimazol/uso terapêutico , Simpatomiméticos/uso terapêutico , Tireotoxicose/tratamento farmacológico , Diabetes Insípido/complicações , Edema/complicações , Edema/tratamento farmacológico , Feminino , Humanos , Hipopituitarismo/complicações , Pessoa de Meia-Idade , Postura , Tireotoxicose/complicações , Aumento de Peso , Redução de Peso
5.
Clin Drug Investig ; 35(2): 133-40, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25526678

RESUMO

BACKGROUND AND OBJECTIVES: The retrospective comparison of test and reference treatment arms in a randomized prospective clinical trial is potentially useful in economic modeling seeking to assess the cost effectiveness of alternative therapies. METHODS: To enhance the credibility of such retrospective comparisons, we propose the application of the following adjustments to significance levels obtained from standard statistical methodology: (1) a significance test for the lower bound of the 95 % confidence interval for the observed difference, (2) a conservative Bonferroni method of adjustment for multiple comparisons, (3) an adjusted p-value calculated using Scheffe's single-step method, and (4) Bayesian 95 % credibility intervals with a prior centered at zero. RESULTS: These adjustments were applied to data from a randomized double-blind concurrent trial (SPD489-325) that established the efficacy and safety of lisdexamfetamine dimesylate (LDX) in children and adolescents with attention-deficit/hyperactivity disorder (ADHD). Prospectively planned analyses demonstrated that the reduction in the symptoms of ADHD was significantly greater than placebo in patients treated with either LDX or the reference treatment, osmotic-release oral system methylphenidate (OROS-MPH). Retrospective analyses showed that the improvement in the symptoms of ADHD was greater in patients treated with LDX than OROS-MPH. We now show that this observation remained significant after the application of the four statistical penalties. CONCLUSIONS: By adjusting the significance level, it is possible to compare quantitatively such retrospective results with prospectively defined comparisons. However, the qualitative level of such retrospective evidence should remain secondary to that obtained from prospectively specified comparisons in a randomized clinical trial.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Adolescente , Teorema de Bayes , Criança , Dextroanfetamina/uso terapêutico , Método Duplo-Cego , Humanos , Dimesilato de Lisdexanfetamina , Estudos Retrospectivos
6.
Clin Exp Obstet Gynecol ; 41(4): 478-82, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25134306

RESUMO

PURPOSE: To determine if treatment with sympathomimetic amines could improve the pain from complex regional pain disorder (CRPD) which was keeping a woman from trying to conceive her second child. MATERIALS AND METHODS: Dextroamphetamine sulfate was prescribed. RESULTS: Within a short length of time the woman's wrist pain considerably improved to the point that she is ready to try in vitro fertilization once again to have a second baby. CONCLUSIONS: Though sympathomimetic amines are used by some reproductive endocrinologists for unexplained infertility and unexplained recurrent miscarriages, the most common use by the gynecologist is for pelvic pain. Despite the thought by some clinicians and researchers that the etiology for CRPD may be related to sympathetic nervous system hyperactivity (and thus sympathomimetic amines could theoretically exacerbate the symptoms), in fact, the treatment with dextroamphetamine sulfate may turn out to be a new and possibly the most effective, least risky, and least expensive treatment to date for CRPD.


Assuntos
Estimulantes do Sistema Nervoso Central/uso terapêutico , Dextroanfetamina/uso terapêutico , Distrofia Simpática Reflexa/tratamento farmacológico , Analgesia por Acupuntura , Adulto , Estimulantes do Sistema Nervoso Central/administração & dosagem , Doença Crônica , Dextroanfetamina/administração & dosagem , Transferência Embrionária , Feminino , Humanos , Gravidez , Complicações na Gravidez/tratamento farmacológico , Complicações na Gravidez/fisiopatologia , Distrofia Simpática Reflexa/diagnóstico , Distrofia Simpática Reflexa/fisiopatologia , Distrofia Simpática Reflexa/terapia , Fibrocartilagem Triangular/lesões
7.
J Clin Psychiatry ; 75(5): 535-42, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24922488

RESUMO

OBJECTIVE: Neurofeedback aims to reduce symptoms of attention-deficit/hyperactivity disorder (ADHD), mainly attention problems. However, the additional influence of neurofeedback over treatment as usual (TAU) on neurocognitive functioning for adolescents with ADHD remains unclear. METHOD: By using a multicenter parallel randomized controlled trial (RCT) design, male adolescents with a DSM-IV-TR diagnosis of ADHD (mean age = 16.1 years; range, 12-24) were randomized to receive either a combination of TAU and neurofeedback (n = 45) or TAU (n = 26). Randomization was computer generated and stratified by age group (ages 12 through 15, 16 through 20, and 21 through 24 years). The neurofeedback intervention consisted of approximately 37 sessions over a period of 25 weeks of theta/sensorimotor rhythm training on the vertex (Cz). Primary neurocognitive outcomes included performance parameters derived from the D2 Test of Attention, the Digit Span backward, the Stroop Color-Word Test and the Tower of London, all assessed preintervention and postintervention. Data were collected between December 2009 and July 2012. RESULTS: At postintervention, outcomes of attention and/or motor speed were improved, with faster processing times for both intervention conditions and with medium to large effect sizes (range, ηp2 = .08-.54; P values < .023). In both groups, no improvements for higher executive functions were observed. Results might partly resemble practice effects. CONCLUSIONS: Although neurocognitive outcomes improved in all adolescents receiving treatment for ADHD, no additional value for neurofeedback over TAU was observed. Hence, this study does not provide evidence for using theta/sensorimotor rhythm neurofeedback to enhance neurocognitive performance as additional intervention to TAU for adolescents with ADHD symptoms. TRIAL REGISTRATION: Trialregister.nl identifier: 1759.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/terapia , Terapia Comportamental/métodos , Estimulantes do Sistema Nervoso Central/uso terapêutico , Terapia Combinada/métodos , Eletroencefalografia/métodos , Neurorretroalimentação/métodos , Adolescente , Adulto , Transtorno do Deficit de Atenção com Hiperatividade/fisiopatologia , Criança , Dextroanfetamina/uso terapêutico , Eletroencefalografia/instrumentação , Terapia Familiar/métodos , Humanos , Masculino , Metilfenidato/administração & dosagem , Metilfenidato/uso terapêutico , Neurorretroalimentação/instrumentação , Testes Neuropsicológicos , Resultado do Tratamento , Adulto Jovem
8.
J Appl Behav Anal ; 47(1): 160-4, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24114567

RESUMO

We evaluated the effects of white noise played through headphones on off-task behavior, percentage of items completed, and percentage of items completed correctly for 3 students with attention deficit hyperactivity disorder (ADHD). Headphones plus white noise were associated with decreases in off-task behavior relative to baseline and headphones-only (no white noise) control conditions. Little change in academic responding occurred across conditions for all participants.


Assuntos
Logro , Transtorno do Deficit de Atenção com Hiperatividade/psicologia , Transtorno do Deficit de Atenção com Hiperatividade/reabilitação , Aprendizagem , Ruído , Estimulação Acústica/métodos , Anfetaminas/uso terapêutico , Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Estimulantes do Sistema Nervoso Central/farmacologia , Criança , Dextroanfetamina/uso terapêutico , Feminino , Humanos , Aprendizagem/efeitos dos fármacos , Dimesilato de Lisdexanfetamina , Masculino
9.
J Child Adolesc Psychopharmacol ; 23(7): 448-57, 2013 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-23808786

RESUMO

OBJECTIVE: The purpose of this pilot study was to compare the effects of 30 sessions of neurofeedback (NF) with stimulant medication on attention-deficit/hyperactivity disorder (ADHD) patients. METHODS: Thirty-two medication-naïve ADHD patients, ages 7-16, from a neuropsychiatric clinic, were randomized to NF (n=16) or drug treatment (n=16). Other actions, such as parent management training, information, or support in school were given as needed, with no differences between the groups. All participants were assessed before treatment on two rating scales, each with parent and teacher forms. In addition, quantitative electroencephalogram (QEEG) and event-related potentials (ERPs), which included behavioral data from a go/no go test were administered. NF training took place in the clinic over a period of 7-11 months, and was followed by a repeat of the same assessment tools. The mean time interval between pre- and postassesment was not significantly different in the two groups. The 18 symptoms of ADHD (American Psychiatric Association, Diagnostic and Statistical Manual of Mental Disorders, 4th ed. (DSM-IV)) were used as the primary outcome measure. RESULTS: Analysis of covariance revealed a significant difference between the groups at evaluation in favor of medication, with a large effect size. This picture was confirmed by other outcome measures. The QEEG spectral power in the theta and beta bands did not change in either group. In ERP, the P3 no go component increased significantly in 8 of 12 patients who had a clinically relevant medication effect, but did not increase in the medication nonresponders or the NF group. CONCLUSIONS: Our study supports effects for stimulants, but not for NF. Effects of NF may require thorough patient selection, frequent training sessions, a system for excluding nonresponders, and active transfer training. The P3 no go ERP component may be a marker for treatment response.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Transtorno do Deficit de Atenção com Hiperatividade/terapia , Estimulantes do Sistema Nervoso Central/uso terapêutico , Neurorretroalimentação , Adolescente , Transtorno do Deficit de Atenção com Hiperatividade/fisiopatologia , Ondas Encefálicas/efeitos dos fármacos , Ondas Encefálicas/fisiologia , Criança , Dextroanfetamina/uso terapêutico , Potenciais Evocados/efeitos dos fármacos , Feminino , Humanos , Masculino , Metilfenidato/uso terapêutico , Projetos Piloto , Desempenho Psicomotor/efeitos dos fármacos , Desempenho Psicomotor/fisiologia
10.
Am J Med Sci ; 345(6): 494-6, 2013 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-23276898

RESUMO

A 44-year-old Caucasian woman presented to the emergency room with worsening low back pain and loss of cutaneous sensation over the paraspinal muscles from T10 to S1. The patient had ingested the attention-deficit disorder medication dextroamphetamine before engaging in intense physical exercise with subsequent consumption of 3 alcoholic beverages before developing symptoms. The patient's creatine kinase levels remained elevated for 8 days with constant severe pain under standard treatment for rhabdomyolysis. Despite stabilization of pain and laboratory values at discharge, the patient continues to experience low paraspinal back pain. In patients with risk factors for rhabdomyolysis, the use of dextroamphetamine should be monitored closely. Outside our findings, there is no literature linking dextroamphetamine with rhabdomyolysis at nontoxic concentrations or with use of the supplement caffeine containing weight loss supplement, Hydroxycut. The authors believe that further research into the potential role of dextroamphetamine use in the setting of other risk factors for rhabdomyolysis is warranted.


Assuntos
Consumo de Bebidas Alcoólicas/efeitos adversos , Dextroanfetamina/efeitos adversos , Exercício Físico , Rabdomiólise/diagnóstico , Rabdomiólise/etiologia , Adulto , Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Dor nas Costas/diagnóstico , Dor nas Costas/etiologia , Estimulantes do Sistema Nervoso Central/efeitos adversos , Estimulantes do Sistema Nervoso Central/uso terapêutico , Dextroanfetamina/uso terapêutico , Feminino , Humanos , Preparações de Plantas/efeitos adversos , Fatores de Risco
11.
Duodecim ; 128(5): 539-40, 2012.
Artigo em Finlandês | MEDLINE | ID: mdl-22486070

RESUMO

The updated Current Care guideline for children and adolescents with ADHD covers both diagnosis and treatment. Psychosocial support is provided when hyperactivity problems arise, even before specific diagnosis. While psychosocial interventions are effective in the treatment of ADHD, the core symptoms are best treated with medication, such as methylphenidate, dexamphetamine, lisdexamphetamine or atomoxetine. Collaboration between families, primary health care services, specialist consultation services and day-care and school professionals is essential within the chain of care.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/diagnóstico , Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Adolescente , Inibidores da Captação Adrenérgica/uso terapêutico , Cloridrato de Atomoxetina , Transtorno do Deficit de Atenção com Hiperatividade/psicologia , Estimulantes do Sistema Nervoso Central/uso terapêutico , Criança , Prestação Integrada de Cuidados de Saúde , Dextroanfetamina/uso terapêutico , Humanos , Metilfenidato/uso terapêutico , Guias de Prática Clínica como Assunto , Propilaminas/uso terapêutico
12.
J Child Adolesc Psychopharmacol ; 21(1): 1-19, 2011 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-21309695

RESUMO

OBJECTIVE: To explore effects of zinc supplementation in American children with attention-deficit/hyperactivity disorder (ADHD). Mideastern trials reported significant benefit from 13-40 mg elemental zinc as the sulfate. METHOD: We randomly assigned 52 children aged 6-14 with DSM-IV ADHD to zinc supplementation (15 mg every morning [qAM] or two times per day [b.i.d.] as glycinate, n = 28) or matched placebo (n = 24) for 13 weeks: 8 weeks monotherapy and then 5 weeks with added d-amphetamine (AMPH). AMPH dose was weight-standardized for 2 weeks and then clinically optimized by week 13. Zinc glycinate was chosen as having less gastrointestinal discomfort than sulfate. Hypotheses were that zinc would improve inattention more than placebo by effect size of d > 0.25 at 8 weeks; zinc+AMPH would improve ADHD symptoms more than placebo+AMPH by d > 0.25, and optimal dose of AMPH with zinc would be 20% lower than with placebo. An interim analysis requested by the National Institute of Mental Health resulted in an increased dosage, so that 20 received 15 mg/day qAM and 8 received 30 mg/day (15 mg b.i.d.) RESULTS: Only the third hypothesis was upheld: Optimal mg/kg AMPH dose with b.i.d. zinc was 37% lower than with placebo. Other clinical outcomes were equivocal, sometimes favoring zinc, sometimes placebo, but objective neuropsychological measures mostly favored b.i.d. zinc (d = 0.36-0.7). Safety tests and adverse events were not different between groups. Copper and iron blood indices were not impaired by 8 weeks of 30 mg/day zinc. CONCLUSION: Doses up to 30 mg/day of zinc were safe for at least 8 weeks, but clinical effect was equivocal except for 37% reduction in amphetamine optimal dose with 30 mg/day zinc (not with 15 mg). Possible reasons for difference from mideastern reports include endemic diets, population genetics, relative rate of zinc deficiency, difference in background nutrition, insufficient dosage or absorption, or wrong anion (sulfate may be necessary for reported benefit). Dose may be especially important: All visually impressive advantages over placebo appeared only with 15 mg b.i.d. rather than once a day. Future research should use larger doses than 15 mg/day, provide a basic recommended daily allowance/intake multivitamin/mineral supplement for all to standardize background nutrition, select participants for low zinc, and consider the issue of anion interaction.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Dextroanfetamina/uso terapêutico , Glicina/análogos & derivados , Adolescente , Transtorno do Deficit de Atenção com Hiperatividade/fisiopatologia , Estimulantes do Sistema Nervoso Central/administração & dosagem , Estimulantes do Sistema Nervoso Central/uso terapêutico , Criança , Cobre/sangue , Dextroanfetamina/administração & dosagem , Relação Dose-Resposta a Droga , Método Duplo-Cego , Quimioterapia Combinada , Feminino , Glicina/administração & dosagem , Glicina/efeitos adversos , Glicina/uso terapêutico , Humanos , Ferro/sangue , Masculino , Testes Neuropsicológicos , Projetos Piloto
13.
J Child Adolesc Psychopharmacol ; 20(6): 495-502, 2010 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-21186968

RESUMO

INTRODUCTION: Iron deficiency (ID) has been associated with attention and behavioral problems, in general, and with attention-deficit/hyperactivity disorder (ADHD), in particular. The study aim was to explore whether iron stores, as reflected by serum ferritin concentration, predicted response to psychostimulants. METHODS: Six- to 14-year-old children with ADHD enrolled in a multiphase, double-blind, randomized, placebo-controlled trial investigating zinc supplementation in treating ADHD and optimizing response to psychostimulants. The Swanson, Nolan, and Pelham (SNAP) ADHD rating scale was the primary clinical instrument. Serum ferritin concentration was obtained at baseline and 8 weeks later. Partial correlations, adjusting for age and sex, were computed. RESULTS: Fifty-two participants (83% males) had a mean age of 10 years. Their ADHD symptoms were moderately severe at baseline (SNAP item mean = 2.1). Their mean ferritin concentration was 18.4 ng/mL, with 23% of the participants having a level below 7, the assay-defined threshold for ID. Serum ferritin was inversely correlated with baseline inattention, hyperactivity/impulsivity, and total ADHD symptom scores (Partial Spearman's r = -0.31, p = 0.04; r = -0.42, p < 0.006; and r = -0.43, p < 0.004, respectively) and with the weight-adjusted dose of amphetamine used to optimize clinical response (Partial Spearman's r = -0.45, p < 0.007). Psychotropic-treatment history moderated some, but not all, of these associations, with previously medicated children showing a stronger association between ferritin concentration and ADHD symptom severity. CONCLUSION: These findings add to the growing literature implicating ID in ADHD. The prediction of amphetamine optimal dose by ferritin concentration suggests that iron supplementation should be investigated as a potential intervention to optimize response to psychostimulants at a lower dose in individuals with low iron stores and ADHD.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Dextroanfetamina/uso terapêutico , Ferritinas/sangue , Glicina/análogos & derivados , Deficiências de Ferro , Adolescente , Transtorno do Deficit de Atenção com Hiperatividade/fisiopatologia , Estimulantes do Sistema Nervoso Central/administração & dosagem , Estimulantes do Sistema Nervoso Central/uso terapêutico , Criança , Dextroanfetamina/administração & dosagem , Relação Dose-Resposta a Droga , Método Duplo-Cego , Feminino , Glicina/farmacologia , Humanos , Masculino , Projetos Piloto , Índice de Gravidade de Doença , Resultado do Tratamento
14.
J Neurol Sci ; 290(1-2): 146-7, 2010 Mar 15.
Artigo em Inglês | MEDLINE | ID: mdl-20045119

RESUMO

Autosomal dominant spinocerebellar ataxias (SCAs) are progressive neurodegenerative disorders which result in dysfunction of the neuronal systems of the spinal cord, brainstem, and cerebellum. The manifestations of daytime somnolence and abnormal sleep behavior have been described in SCA type 3 (SCA3) and SCA type 6 (SCA6), but as yet have not been described in SCA type 1 (SCA1). We report two cases of sleep disturbance, fatigue and excessive daytime somnolence in individuals with SCA1 and their progress through several therapies. These case studies are unique as they describe excessive daytime somnolence and sleep abnormalities in SCA1.


Assuntos
Distúrbios do Sono por Sonolência Excessiva/genética , Distúrbios do Sono por Sonolência Excessiva/fisiopatologia , Predisposição Genética para Doença/genética , Ataxias Espinocerebelares/genética , Ataxias Espinocerebelares/fisiopatologia , Atividades Cotidianas , Amantadina/uso terapêutico , Ataxina-1 , Ataxinas , Tronco Encefálico/fisiopatologia , Cerebelo/fisiopatologia , Citalopram/uso terapêutico , Análise Mutacional de DNA , Dextroanfetamina/uso terapêutico , Progressão da Doença , Feminino , Marcadores Genéticos , Testes Genéticos , Humanos , Pessoa de Meia-Idade , Mutação/genética , Naturologia , Proteínas do Tecido Nervoso/genética , Proteínas Nucleares/genética , Pergolida/uso terapêutico , Polissonografia , Ataxias Espinocerebelares/complicações , Resultado do Tratamento
15.
Am J Psychiatry ; 166(12): 1392-401, 2009 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-19884222

RESUMO

OBJECTIVE: The purpose of the present study was to evaluate the efficacy of divalproex for reducing aggressive behavior among children 6 to 13 years old with attention deficit hyperactivity disorder (ADHD) and a disruptive disorder whose chronic aggression was underresponsive to a prospective psychostimulant trial. METHOD: Children received open stimulant treatment during a lead-in phase that averaged 5 weeks. Agent and dose were assessed weekly and modified to optimize response. Children whose aggressive behavior persisted at the conclusion of the lead-in phase were randomly assigned to receive double-blind, flexibly dosed divalproex or a placebo adjunctive to stimulant for 8 weeks. Families received weekly behavioral therapy throughout the trial. The primary outcome measure was the proportion of children whose aggressive behavior remitted, defined by post-trial ratings of negligible or absent aggression. RESULT: A significantly higher proportion of children randomly assigned to divalproex met remission criteria (eight out of 14 [57%]) than those randomly assigned to placebo (two out of 13 [15%]). Divalproex was generally well tolerated. CONCLUSIONS: Among children with ADHD whose chronic aggressive behavior is refractory to optimized stimulant treatment, the addition of divalproex increases the likelihood that aggression will remit. A larger trial is necessary to specify with greater precision the magnitude of benefit for adjuvant divalproex.


Assuntos
Agressão/efeitos dos fármacos , Antimaníacos/uso terapêutico , Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Transtornos de Deficit da Atenção e do Comportamento Disruptivo/tratamento farmacológico , Estimulantes do Sistema Nervoso Central/uso terapêutico , Ácido Valproico/uso terapêutico , Adolescente , Agressão/psicologia , Transtorno do Deficit de Atenção com Hiperatividade/epidemiologia , Transtorno do Deficit de Atenção com Hiperatividade/psicologia , Transtornos de Deficit da Atenção e do Comportamento Disruptivo/epidemiologia , Terapia Comportamental/métodos , Estimulantes do Sistema Nervoso Central/farmacologia , Criança , Terapia Combinada , Comorbidade , Transtorno da Conduta/tratamento farmacológico , Transtorno da Conduta/psicologia , Dextroanfetamina/uso terapêutico , Quimioterapia Combinada , Terapia Familiar/métodos , Feminino , Humanos , Masculino , Metilfenidato/uso terapêutico , Placebos , Resultado do Tratamento
16.
Clin Neurophysiol ; 119(1): 163-79, 2008 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-18054279

RESUMO

OBJECTIVE: This study examines the utility of new measures of event-related spatio-temporal waves in the EEG as a marker of ADHD, previously shown to be closely related to the P3 ERP in an adult sample. METHODS: Wave activity in the EEG was assessed during both an auditory Oddball and a visual continuous performance task (CPT) for an ADHD group ranging in age from 6 to 18 years and comprising mostly Combined and Inattentive subtypes, and for an age and gender matched control group. RESULTS: The ADHD subjects had less wave activity at low frequencies ( approximately 1 Hz) during both tasks. For auditory Oddball targets, this effect was shown to be related to smaller P3 ERP amplitudes. During CPT, the approximately 1 Hz wave activity in the ADHD subjects was inversely related to clinical and behavioral measures of hyperactivity and impulsivity. CPT wave activity at approximately 1 Hz was seen to "normalise" following treatment with stimulant medication. CONCLUSIONS: The results identify a deficit in low frequency wave activity as a new marker for ADHD associated with levels of hyperactivity and impulsivity. SIGNIFICANCE: The marker is evident across a range of tasks and may be specific to ADHD. While lower approximately 1 Hz activity partly accounts for reduced P3 ERPs in ADHD, the effect also arises for tasks that do not elicit a P3. Deficits in behavioral inhibition are hypothesized to arise from underlying dysregulation of cortical inhibition.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/diagnóstico , Transtorno do Deficit de Atenção com Hiperatividade/fisiopatologia , Eletroencefalografia , Potenciais Evocados P300/fisiologia , Estimulação Acústica/métodos , Adolescente , Análise de Variância , Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Mapeamento Encefálico , Estimulantes do Sistema Nervoso Central/uso terapêutico , Criança , Dextroanfetamina/uso terapêutico , Relação Dose-Resposta à Radiação , Potenciais Evocados P300/efeitos dos fármacos , Feminino , Humanos , Masculino , Metilfenidato/uso terapêutico , Testes Neuropsicológicos , Estimulação Luminosa/métodos , Análise Espectral
17.
BMJ Clin Evid ; 20082008 Oct 02.
Artigo em Inglês | MEDLINE | ID: mdl-19445793

RESUMO

INTRODUCTION: Prevalence estimates of attention deficit hyperactivity disorder (ADHD) vary according to the diagnostic criteria used and the population sampled. DSM-IV prevalence estimates among school children in the US are 3-5%, but other estimates vary from 1.7% to 16.0%. No objective test exists to confirm the diagnosis of ADHD, which remains a clinical diagnosis. Other conditions frequently co-exist with ADHD. METHODS AND OUTCOMES: We conducted a systematic review and aimed to answer the following clinical questions: What are the effects of pharmacological treatments for ADHD in children and adolescents? What are the effects of psychological treatments for ADHD in children and adolescents? What are the effects of combination treatments for ADHD in children and adolescents? We searched: Medline, Embase, The Cochrane Library, and other important databases up to June 2007 (Clinical Evidence reviews are updated periodically, please check our website for the most up-to-date version of this review). We included harms alerts from relevant organisations such as the US Food and Drug Administration (FDA) and the UK Medicines and Healthcare products Regulatory Agency (MHRA). RESULTS: We found 34 systematic reviews, RCTs, or observational studies that met our inclusion criteria. We performed a GRADE evaluation of the quality of evidence for interventions. CONCLUSIONS: In this systematic review we present information relating to the effectiveness and safety of the following interventions: atomoxetine, bupropion, clonidine, dexamfetamine sulphate, homeopathy, methylphenidate, modafinil, omega 3-polyunsaturated fatty acids, and psychological/behavioural treatment (either alone or in combination with a drug treatment).


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade , Metilfenidato , Adolescente , Cloridrato de Atomoxetina , Transtorno do Deficit de Atenção com Hiperatividade/diagnóstico , Transtornos de Deficit da Atenção e do Comportamento Disruptivo/tratamento farmacológico , Criança , Dextroanfetamina/uso terapêutico , Manual Diagnóstico e Estatístico de Transtornos Mentais , Humanos , Metilfenidato/uso terapêutico
18.
J Pediatr Endocrinol Metab ; 19(2): 129-34, 2006 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-16562585

RESUMO

UNLABELLED: Unrelenting weight gain, morbid obesity and disturbance of the sleep-wake cycle are well-recognized sequelae of hypothalamic injury. These health problems and their risk of significant associated co-morbidity drive the search for potential treatment modalities. OBJECTIVE: To report effects on weight change and wakefulness in a cohort of 12 patients with structural hypothalamic lesions treated with low-dose dexamphetamine. METHOD: Retrospective review of case notes. RESULTS: Twelve patients received dexamphetamine 5 mg twice daily (median duration 13 months in males, 15 months in females). Ten of 12 patients experienced either stabilisation of weight or weight loss on treatment (median loss -0.7 SDS in males, -0.44 SDS in females). Eleven patients reported improvement in daytime wakefulness and/or concentration and exercise tolerance. CONCLUSION: Low-dose dexamphetamine therapy has a positive impact on inexorable weight gain and daytime somnolence following hypothalamic injury.


Assuntos
Estimulantes do Sistema Nervoso Central/uso terapêutico , Dextroanfetamina/uso terapêutico , Distúrbios do Sono por Sonolência Excessiva/tratamento farmacológico , Doenças Hipotalâmicas/complicações , Hipotálamo/efeitos dos fármacos , Obesidade/tratamento farmacológico , Obesidade/etiologia , Adolescente , Criança , Pré-Escolar , Craniofaringioma/complicações , Craniofaringioma/cirurgia , Distúrbios do Sono por Sonolência Excessiva/etiologia , Feminino , Humanos , Doenças Hipotalâmicas/tratamento farmacológico , Hipotálamo/fisiopatologia , Masculino , Obesidade/prevenção & controle , Neoplasias Hipofisárias/complicações , Neoplasias Hipofisárias/cirurgia , Estudos Retrospectivos , Aumento de Peso/efeitos dos fármacos
19.
Pediatrics ; 115(6): e749-57, 2005 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-15930203

RESUMO

The American Academy of Pediatrics' Committee on Quality Improvement, Subcommittee on Attention-Deficit/Hyperactivity Disorder, reviewed and analyzed the current literature for the purpose of developing an evidence-based clinical practice guideline for the treatment of the school-aged child with attention-deficit/hyperactivity disorder (ADHD). This review included several key reports, including an evidence review from the McMaster Evidence-Based Practice Center (supported by the Agency for Healthcare Research and Quality), a report from the Canadian Coordinating Office for Health Technology Assessment, the Multimodal Treatment for ADHD comparative clinical trial (supported by the National Institute of Mental Health), and supplemental reviews conducted by the subcommittee. These reviews provided substantial information about different treatments for ADHD and their efficacy in improving certain characteristics or outcomes for children with ADHD as well as adverse effects and benefits of multiple modes of treatment compared with single modes (eg, medication or behavior therapies alone). The reviews also compared the effects of different medications. Other evidence documents the long-term nature of ADHD in children and its classification as a chronic condition, meriting the application of general concepts of chronic-condition management, including an individual treatment plan with a focus on ongoing parent and child education, management, and monitoring. The evidence strongly supports the use of stimulant medications for treating the core symptoms of children with ADHD and, to a lesser degree, for improving functioning. Behavior therapy alone has only limited effect on symptoms or functioning of children with ADHD, although combining behavior therapy with medication seems to improve functioning and may decrease the amount of (stimulant) medication needed. Comparison among stimulants (mainly methylphenidate and amphetamines) did not indicate that 1 class outperformed the other.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/terapia , Adolescente , Antidepressivos Tricíclicos/uso terapêutico , Cloridrato de Atomoxetina , Transtorno do Deficit de Atenção com Hiperatividade/tratamento farmacológico , Terapia Comportamental , Cuidadores/psicologia , Estimulantes do Sistema Nervoso Central/uso terapêutico , Criança , Terapia Combinada , Dextroanfetamina/uso terapêutico , Medicina Baseada em Evidências , Família/psicologia , Feminino , Humanos , Masculino , Metilfenidato/uso terapêutico , Proteínas da Membrana Plasmática de Transporte de Norepinefrina , Pemolina/uso terapêutico , Guias de Prática Clínica como Assunto , Propilaminas/uso terapêutico , Ensaios Clínicos Controlados Aleatórios como Assunto , Estresse Psicológico/prevenção & controle , Simportadores/antagonistas & inibidores
20.
J Paediatr Child Health ; 41(12): 625-30, 2005 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-16398864

RESUMO

OBJECTIVES: There are few studies exploring parental perceptions of the diagnosis and overall treatment of their children with attention deficit hyperactivity disorder (ADHD). This community-based study was conducted to consider this important aspect of care. METHODS: A total of 7 226 (65%) parents responded to a community survey of 11 184 children aged 10-12 years living in northern Sydney in 2000, out of which 278 children with ADHD were identified. Their parents completed an anonymous questionnaire covering their perceptions relating to diagnosis, treatment and overall management. RESULTS: Only 66% of parents recalled the use of questionnaires or rating scales. There were 82% of children who had trialed medication and 66% of these were still taking it. Behavioural intervention had occurred in 42% of the children. Non-conventional treatments, most commonly elimination diet and/or fatty acid supplementation, had been used in 71% of the children. These were considered helpful in one-third of cases. A total of 55% of parents reported being either satisfied or very satisfied with their child's care. Parents were more likely to report satisfaction when their children were on medication and when reviews were held at least 6 monthly. Lack of educational support and teachers' understanding of ADHD were identified as ongoing issues. CONCLUSION: Parental responses suggested that adherence to recommended diagnostic guidelines was inadequate. Behavioural intervention was underutilized despite its documented positive role. Non-conventional therapies were widely used and considered helpful in one-third of the children who used them. Use of stimulant medication and frequent reviews were more likely to be associated with overall management satisfaction.


Assuntos
Transtorno do Deficit de Atenção com Hiperatividade/diagnóstico , Transtorno do Deficit de Atenção com Hiperatividade/terapia , Atitude Frente a Saúde , Pais , Transtorno do Deficit de Atenção com Hiperatividade/epidemiologia , Austrália , Terapia Comportamental , Estimulantes do Sistema Nervoso Central/uso terapêutico , Criança , Terapias Complementares/estatística & dados numéricos , Dextroanfetamina/uso terapêutico , Feminino , Humanos , Masculino , Metilfenidato/uso terapêutico , Satisfação do Paciente , Satisfação Pessoal , Prevalência , Estudos Retrospectivos , Instituições Acadêmicas , Inquéritos e Questionários
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