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1.
Dev Med Child Neurol ; 2024 Mar 26.
Artigo em Inglês | MEDLINE | ID: mdl-38530807

RESUMO

AIM: To identify cerebral palsy (CP) variables collected in CP registries from high-income countries (HICs) and low- and middle-income countries (LMICs) to assist with the development of a regional CP registry relevant to the African region. METHOD: A systematic search of online databases to identify peer-reviewed publications and grey literature about CP risk-factor variables, using Ovid MEDLINE, Embase Ovid, CINAHL, and Google Scholar. RESULTS: A total of 197 studies published from global CP registries between 1990 and 2023 were identified. CP registries both from HICs and from LMICs included variables on prenatal CP risk factors. LMIC registries focused more on socioeconomic factors (the physical structure of the family home [21.1%, n = 8, in LMICs vs 1.7%, n = 2, in HICs]). Prenatal modifiable and non-modifiable risk factors were emphasized in HICs. LMIC registries included more postnatal CP risk-factor variables than HIC registries, including history of postnatal jaundice (15.8%, n = 6, in LMICs vs 6.9%, n = 8, in HICs) and postnatal head trauma (10.5%, n = 4, in LMICs vs 5.2%, n = 6, in HICs). INTERPRETATION: CP registries are currently more available in HICs than in LMICs. Differences in CP risk factors account for most of the differences in variables included in HICs and LMICs. Comparing variables used by CP registries in HICs and LMICs suggests the importance of understanding contextually relevant factors for regional registry design.

2.
Dev Med Child Neurol ; 65(4): 526-533, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36229895

RESUMO

AIM: To better understand the aetiologies of epileptic spasms in infants, as well as the safety and efficacy of high dose corticosteroids in tuberculosis and human immunodeficiency virus (HIV) endemic resource-limited settings. METHOD: This was a retrospective analysis of infants with epileptic spasms managed at the tertiary referral centres in the Western Cape, South Africa. RESULTS: Of 175 children with epileptic spasms, the median age at onset was 6 months (interquartile range 4-8 months). Structural aetiologies were most common (115 out of 175 [66%]), with two-thirds related to perinatal insults. A lead time to treatment (LTTT) of less than 1 month was more likely in the epileptic encephalopathy/developmental and epileptic encephalopathy (DEE) group: 58 out of 92 (63%), compared to 28 out of 76 (37%) of those with developmental encephalopathy (p = 0.001). Failure to recognize preceding developmental delay was common. Ninety-nine children (57%) received first line hormonal therapy such as adrenocorticotropic hormone. A total of 111 out of 172 children (65%) from the developmental encephalopathy and epileptic encephalopathy/DEE groups had clinical and/or electroencephalogram resolution of spasms within 14 days. In our population, children in whom an aetiology could not be identified were statistically more likely to have moderate to profound developmental delay at 1 year of age: 33 out of 44 (p = 0.001). Based on reported incidence of epileptic spasms, 23 to 58 cases per annum would be expected but a far smaller proportion presented to our centres. INTERPRETATION: Whilst this is the largest cohort of infants with epileptic spasms from sub-Saharan Africa, the study size is less than expected; this may reflect misdiagnosis and failure of referral pathways. Despite a reported shorter LTTT, infants with DEE had worse developmental outcomes compared to international studies. Hormonal therapy was safe and effective in our setting, despite exposure to high levels of tuberculosis and HIV. WHAT THIS PAPER ADDS: The number of unreferred cases of epileptic spasms in South Africa remains high. Caregivers and health care workers in primary care facilities often fail to recognize developmental delay. The burden of disease from hypoxic-ischaemic encephalopathy remains high in our resource-limited setting. Hormonal treatment (e.g. adrenocorticotropic hormone) was safe and effective despite the high prevalence of human immunodeficiency virus and tuberculosis.


Assuntos
Infecções por HIV , Espasmos Infantis , Lactente , Criança , Humanos , Adulto , África do Sul , Estudos Retrospectivos , Espasmos Infantis/tratamento farmacológico , Hormônio Adrenocorticotrópico/uso terapêutico , Espasmo/complicações , Espasmo/tratamento farmacológico , Eletroencefalografia/efeitos adversos , Infecções por HIV/complicações
3.
Childs Nerv Syst ; 39(4): 1029-1039, 2023 04.
Artigo em Inglês | MEDLINE | ID: mdl-36525135

RESUMO

BACKGROUND: Neurodevelopmental delay is a significant long-term complication of childhood tuberculous meningitis (TBM). The objective of this study was to assess risk factors for neurodevelopmental delay in children with TBM. METHODS: We conducted a retrospective cohort study of children diagnosed with TBM at Tygerberg Hospital, Cape Town, South Africa, over a 30-year period between 1985 and 2015. We assessed the relationship between demographic, clinical, laboratory and neuro-imaging characteristics, and cognitive impairment at the conclusion of anti-tuberculous treatment. Poor outcome was defined as moderate-to severe cognitive impairment. RESULTS: A total of 327 TBM patients were included, 71 (21.7%) suffered a poor outcome. Multivariate analysis revealed that decreased level of consciousness (adjusted OR (aOR): 4.68; 95%CI: 2.43-13.88; p = 0.005), brainstem dysfunction (aOR: 3.20; 95%CI: 1.70-6.00; p < 0.001), and radiological infarction (aOR: 3.47; 95%CI: 1.87-6.45; p < 0.001) were associated with a poor developmental outcome. Left hemispherical (single and multiple) stroke and bilateral stroke were associated with poor developmental outcomes. CONCLUSION: Certain neurological signs as well as radiological infarct characteristics are important predictors of poor developmental outcome. Anticipation of the likely level of cognitive impairment at diagnosis allows more accurate prognostication and prompt institution of supportive and rehabilitative measures, after the acute illness.


Assuntos
Acidente Vascular Cerebral , Tuberculose Meníngea , Humanos , Criança , Tuberculose Meníngea/complicações , Tuberculose Meníngea/diagnóstico por imagem , Estudos Retrospectivos , África do Sul/epidemiologia , Fatores de Risco , Acidente Vascular Cerebral/complicações
4.
Am J Perinatol ; 39(10): 1124-1131, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-33321532

RESUMO

OBJECTIVE: Human cases of acute profound hypoxic-ischemic (HI) injury (HII), in which the insult duration timed with precision had been identified, remains rare, and there is often uncertainty of the prior state of fetal health. STUDY DESIGN: A retrospective analysis of 10 medicolegal cases of neonatal encephalopathy-cerebral palsy survivors who sustained intrapartum HI basal ganglia-thalamic (BGT) pattern injury in the absence of an obstetric sentinel event. RESULTS: Cardiotocography (CTG) admission status was reassuring in six and suspicious in four of the cases. The median time from assessment by admission CTG or auscultation to birth was 687.5 minutes (interquartile range [IQR]: 373.5-817.5 minutes), while the median time interval between first pathological CTG and delivery of the infant was 179 minutes (IQR: 137-199.25 minutes). The mode of delivery in the majority of infants (60%) was by unassisted vaginal birth; four were delivered by delayed caesarean section. The median (IQR) interval between the decision to perform a caesarean section and delivery was 169 minutes (range: 124-192.5 minutes). CONCLUSION: The study shows that if a nonreassuring fetal status develops during labor and is prolonged, a BGT pattern HI injury may result, in the absence of a perinatal sentinel event. Intrapartum BGT pattern injury and radiologically termed "acute profound HI brain injury" are not necessarily synonymous. A visualized magnetic resonance imaging (MRI) pattern should preferably solely reflect the patterns description and severity, rather than a causative mechanism of injury. KEY POINTS: · BGT HI injury pattern on MRI may develop in the absence of a perinatal sentinel event.. · BGT pattern injury may not be synonymous with "acute profound HI brain injury.". · MRI pattern and severity thereof should be described rather than a causative mechanism of injury..


Assuntos
Lesões Encefálicas , Paralisia Cerebral , Hipóxia-Isquemia Encefálica , Gânglios da Base/diagnóstico por imagem , Lesões Encefálicas/complicações , Lesões Encefálicas/etiologia , Cardiotocografia/métodos , Paralisia Cerebral/etiologia , Cesárea/efeitos adversos , Feminino , Humanos , Hipóxia-Isquemia Encefálica/complicações , Hipóxia-Isquemia Encefálica/etiologia , Lactente , Recém-Nascido , Gravidez , Estudos Retrospectivos
5.
Clin Infect Dis ; 72(5): e136-e145, 2021 03 01.
Artigo em Inglês | MEDLINE | ID: mdl-33283220

RESUMO

BACKGROUND: Much of the neurological sequelae of central nervous system (CNS) tuberculosis (TB) is due to an excessive cytokine-driven host-inflammatory response. Adjunctive corticosteroids, which reduce cytokine production and thus dampen the inflammation, improve overall survival but do not prevent morbidity. This has prompted investigation of more targeted immunomodulatory agents, including thalidomide. METHODS: We describe a retrospective cohort of 38 children consecutively treated with adjunctive thalidomide for CNS TB-related complications over a 10-year period. RESULTS: The most common presenting symptom was focal motor deficit (n = 16), followed by cranial nerve palsies and cerebellar dysfunction. Three of the 38 children presented with large dural-based lesions, manifesting as epilepsia partialis continua (EPC), 4 presented with blindness secondary to optochiasmatic arachnoiditis, and 2 children developed paraplegia due to spinal cord TB mass lesions. Duration of adjunctive thalidomide therapy (3-5 mg/kg/day) varied according to complication type. In children compromised by TB mass lesions, the median treatment duration was 3.9 months (interquartile range [IQR], 2.0-5.0 months), whereas in children with optic neuritis it was 2.0 months (IQR, 1.3-7.3 months) and in EPC it was 1.0 months (IQR, 1-2.5 months). Satisfactory clinical and radiological response was observed in 37 of the children. None of the children experienced rashes, hepatitis, or hematologic derangements or complained of leg cramps. CONCLUSIONS: This study is the largest cohort of adult or pediatric patients treated with adjunctive thalidomide for CNS TB-related complications. The drug has proved to be safe and well tolerated and appears to be clinically efficacious. The potential role of thalidomide or analogues in the treatment of other tuberculous meningitis-related complications requires further exploration.


Assuntos
Tuberculose do Sistema Nervoso Central , Tuberculose Meníngea , Adulto , Antituberculosos/efeitos adversos , Criança , Humanos , Estudos Retrospectivos , Talidomida/efeitos adversos , Tuberculose do Sistema Nervoso Central/complicações , Tuberculose do Sistema Nervoso Central/tratamento farmacológico , Tuberculose Meníngea/tratamento farmacológico
6.
Metab Brain Dis ; 36(6): 1151-1167, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-33909200

RESUMO

In this Review (Part I), we investigate the scientific evidence that multiple sclerosis (MS) is caused by the death of oligodendrocytes, the cells that synthesize myelin, due to a lack of biochemical and nutritional factors involved in mitochondrial energy production in these cells. In MS, damage to the myelin sheaths surrounding nerve axons causes disruption of signal transmission from the brain to peripheral organs, which may lead to disability. However, the extent of disability is not deterred by the use of MS medication, which is based on the autoimmune hypothesis of MS. Rather, disability is associated with the loss of brain volume, which is related to the loss of grey and white matter. A pathology-supported genetic testing (PSGT) method, developed for personalized assessment and treatment to prevent brain volume loss and disability progression in MS is discussed. This involves identification of MS-related pathogenic pathways underpinned by genetic variation and lifestyle risk factors that may converge into biochemical abnormalities associated with adverse expanded disability status scale (EDSS) outcomes and magnetic resonance imaging (MRI) findings during patient follow-up. A Metabolic Model is presented which hypothesizes that disability may be prevented or reversed when oligodendrocytes are protected by nutritional reserve. Evidence for the validity of the Metabolic Model may be evaluated in consecutive test cases following the PSGT method. In Part II of this Review, two cases are presented that describe the PSGT procedures and the clinical outcomes of these individuals diagnosed with MS.


Assuntos
Autoimunidade/genética , Testes Genéticos , Esclerose Múltipla , Encéfalo/patologia , Avaliação da Deficiência , Humanos , Esclerose Múltipla/genética , Esclerose Múltipla/patologia , Esclerose Múltipla/prevenção & controle , Bainha de Mielina/patologia
7.
Metab Brain Dis ; 36(6): 1169-1181, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-33710528

RESUMO

In Part I of this Review we evaluated the scientific evidence for a Metabolic Model of multiple sclerosis (MS). Part II outlines the implementation of an adaptive pathology-supported genetic testing (PSGT) algorithm aimed at preventing/reversing disability in two illustrative MS cases, starting with a questionnaire-based risk assessment, including family history and lifestyle factors. Measurement of iron, vitamin B12, vitamin D, cholesterol and homocysteine levels identified biochemical deficits in both cases. Case 1, after following the PSGT program for 15 years, had an expanded disability status scale (EDSS) of 2.0 (no neurological sequelae) together with preserved brain volume on magnetic resonance imaging (MRI). A novel form of iron deficiency was identified in Case 1, as biochemical testing at each hospital submission due to MS symptoms showed low serum iron, ferritin and transferrin saturation, while hematological status and erythrocyte sedimentation rate measurement of systemic inflammation remained normal. Case 2 was unable to walk unaided until her EDSS improved from 6.5 to 4.0 over 12 months after implementation of the PSGT program, with amelioration of her suboptimal biochemical markers and changes to her diet and lifestyle, allowing her to regain independence. Genotype-phenotype correlation using a pathway panel of functional single nucleotide variants (SNVs) to facilitate clinical interpretation of whole exome sequencing (WES), elucidated the underlying metabolic pathways related to the biochemical deficits. A cure for MS will remain an elusive goal if separated from nutritional support required for production and maintenance of myelin, which can only be achieved by a lifelong investment in wellness.


Assuntos
Testes Genéticos , Deficiências de Ferro/metabolismo , Esclerose Múltipla/genética , Esclerose Múltipla/patologia , Testes Genéticos/métodos , Humanos , Ferro/metabolismo , Estilo de Vida , Esclerose Múltipla/diagnóstico , Bainha de Mielina/metabolismo , Bainha de Mielina/patologia
8.
Childs Nerv Syst ; 37(8): 2625-2634, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-33856542

RESUMO

PURPOSE: Cerebrovascular complications are commonly observed in children with tuberculous meningitis. We aimed to determine which clinical factors were associated with stroke at admission in children with tuberculous meningitis and, in children stroke-free at admission, which factors were associated with development of stroke on treatment. METHODS: We analysed a cohort of 474 children diagnosed with 'definite' and 'probable' tuberculous meningitis, with prospectively collected data, at Tygerberg Hospital, Cape Town, South Africa from 1985 to 2005. We considered either hemiparesis or radiological arterial ischemic infarction as evidence of stroke. RESULTS: At admission, 339 (71.5%) children presented with stroke. Features associated with stroke at admission included age <3 years (odds ratio (OR) 3.70; 95% confidence interval (CI): 2.44-5.63; p < 0.01), convulsions (OR: 2.25; 95% CI: 1.46-3.45; p < 0.01) and hydrocephalus (OR: 1.63; 95% CI: 1.05-2.53; p = 0.03). In the group of children without stroke at admission (n = 135), 33 (24.4%) developed stroke by 1 month. Similar factors predicted stroke and included age <3 years (OR: 2.60; 95% CI: 1.17-5.80; p = 0.02), convulsions (OR: 2.25; 95% CI: 1.46-3.45; p < 0.01), CSF cell count <10 or >500/L (OR: 3.12; 95% CI: 1.03-9.43; p = 0.04) and hydrocephalus (OR: 2.99; 95% CI: 1.30-6.89; p = 0.01). CONCLUSION: A large proportion of children with tuberculous meningitis present with stroke at admission. Of those with no evidence of stroke at admission, a quarter develop stroke by 1 month, suggesting that there could be a brief window in which to give preventive therapy.


Assuntos
Isquemia Encefálica , AVC Isquêmico , Acidente Vascular Cerebral , Tuberculose Meníngea , Isquemia Encefálica/complicações , Isquemia Encefálica/epidemiologia , Criança , Pré-Escolar , Humanos , Fatores de Risco , África do Sul/epidemiologia , Acidente Vascular Cerebral/complicações , Acidente Vascular Cerebral/epidemiologia , Tuberculose Meníngea/complicações , Tuberculose Meníngea/epidemiologia
9.
Dev Med Child Neurol ; 62(11): 1309-1316, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32779195

RESUMO

AIM: To describe the trajectory of clinical signs in children who developed human immunodeficiency virus encephalopathy (HIVE) after starting early antiretroviral therapy (ART). METHOD: This was a retrospective case-cohort description of HIVE among Cape Town participants from the Children with HIV Early AntiRetroviral treatment (CHER) trial. Criteria for HIVE diagnosis were at least two of: (1) acquired central motor deficit, (2) impaired brain growth, and (3) failure to attain or loss of developmental milestones in the absence of an alternative aetiology. RESULTS: Of 133 surviving participants who initiated ART at a median age of 9 weeks and who were followed until a median age of 6 years, 20 (12%) developed HIVE at a median age 31 months (interquartile range 19-37). In these, the first neurological deterioration was noticed at a median age of 19 months, when 16 were on ART and nine had undetectable HIV viral load for a median of 12 months. Signs of upper motor neurons were present in 18, of whom 12 resolved and four had persistent spastic diplegia; 19 had motor delay, of whom 14 resolved; 12 had language delay, of whom 11 resolved; and 16 had impaired brain growth, of whom only five recovered. For the 16 participants already on ART at HIVE diagnosis, regimens were not altered in response to diagnosis. INTERPRETATION: HIVE may occur despite early ART initiation and virological suppression and then resolve on unchanged ART, most likely as intrathecal inflammation subsides. WHAT THIS PAPER ADDS: Despite suppressive antiretroviral therapy, children can develop human immunodeficiency virus encephalopathy, The most common manifestations are motor deficits and impaired brain growth. Most experience improvement, with many resolving without additional intervention.


Assuntos
Complexo AIDS Demência , Antirretrovirais/administração & dosagem , Encéfalo , Deficiências do Desenvolvimento , Transtornos do Crescimento , Transmissão Vertical de Doenças Infecciosas , Transtornos dos Movimentos , Avaliação de Resultados em Cuidados de Saúde , Complexo AIDS Demência/complicações , Complexo AIDS Demência/tratamento farmacológico , Complexo AIDS Demência/fisiopatologia , Encéfalo/crescimento & desenvolvimento , Encéfalo/fisiopatologia , Estudos de Casos e Controles , Criança , Pré-Escolar , Deficiências do Desenvolvimento/etiologia , Deficiências do Desenvolvimento/fisiopatologia , Feminino , Seguimentos , Transtornos do Crescimento/etiologia , Transtornos do Crescimento/fisiopatologia , Humanos , Lactente , Masculino , Transtornos dos Movimentos/etiologia , Transtornos dos Movimentos/fisiopatologia , Estudos Retrospectivos , África do Sul
10.
Dev Med Child Neurol ; 62(6): 735-741, 2020 06.
Artigo em Inglês | MEDLINE | ID: mdl-31916251

RESUMO

AIMS: To describe stroke syndromes and transcranial Doppler (TCD) findings in children with human immunodeficiency virus (HIV) and examine the associations between TCD and clinical and laboratory data. METHOD: We enrolled 42 children (24 males, 18 females) with HIV (median age=7y 6mo; 2y 7mo-15y 6mo), with and without stroke who underwent a TCD examination of the anterior and posterior circulations to derive time-averaged maximum mean velocity (TAMMV) measurements for comparison with previous studies. Clinical and laboratory variables were extracted from the medical records. RESULTS: Of the 42 children with HIV, five had right-sided hemiparesis, three had chronic lung disease, two occurred post-varicella infection, one after herpetic oral ulceration, and one had a poorly functioning left ventricle. Neuroimaging showed middle cerebral artery (MCA) TAMMV greater than 200cm/s, moyamoya-like arteriopathy, left basal ganglia infarction with ipsilateral stenosis, hygroma consistent with venous thrombosis, and a hyperdense left MCA. Eight neurologically asymptomatic children had atypical TCD. The CD4 cell count was non-significantly lower in 6 out of 30 children with atypical TCD (median=21.5; interquartile range=16.1-26.5) compared with the remainder (median=29; interquartile range=21.3-35.0; p=0.09). INTERPRETATION: A variety of stroke syndromes occur in children with HIV. TCD suggests atypical intracranial vessels and/or haemodynamics in some children with HIV infection, consistent with vasculopathy, possibly related directly to immunodeficiency and/or infection. WHAT THIS PAPER ADDS: A range of stroke syndromes are found in children with human immunodeficiency virus (HIV). Transcranial Doppler (TCD) velocities in HIV are commonly outside the range for typically developing children. TCD and neuroimaging data in children with HIV suggest intracranial vasculopathy as one mechanism for stroke. CD4 cell count is non-significantly lower in children with HIV and atypical TCD.


Assuntos
Infecções por HIV/complicações , Infecções por HIV/diagnóstico por imagem , Acidente Vascular Cerebral/diagnóstico por imagem , Ultrassonografia Doppler Transcraniana , Adolescente , Estudos de Casos e Controles , Circulação Cerebrovascular/fisiologia , Criança , Pré-Escolar , Feminino , Infecções por HIV/fisiopatologia , Humanos , Angiografia por Ressonância Magnética , Masculino , Acidente Vascular Cerebral/fisiopatologia , Acidente Vascular Cerebral/virologia , Tomografia Computadorizada por Raios X
11.
Pediatr Radiol ; 49(5): 652-662, 2019 05.
Artigo em Inglês | MEDLINE | ID: mdl-30498850

RESUMO

The human immunodeficiency virus (HIV) epidemic seems largely controlled by anti-retroviral treatment with resultant large numbers of children growing up with the disease on long-term treatment, placing them at higher risk to develop HIV-related brain injury, ongoing cognitive impairment and treatment-related neurological complications. Cerebral white matter involvement is a common radiologic finding in HIV infection and the causes of this have overlapping appearances, ranging from diffuse widespread involvement to focal lesions. The varied pathophysiology is broadly grouped into primary effects of HIV, opportunistic infection, vascular disease and neoplasms. White matter changes in children can be different from those in adults. This review provides guidance to radiologists with the diagnostic dilemma of nonspecific cerebral white matter lesions in children with HIV. The authors discuss common causes of HIV-related cerebral white matter disease as well as the role of neuroimaging in the management of these children.


Assuntos
Infecções por HIV/complicações , Infecções por HIV/diagnóstico por imagem , Leucoencefalopatias/diagnóstico por imagem , Leucoencefalopatias/virologia , Criança , Diagnóstico Diferencial , Humanos
12.
Trop Med Int Health ; 23(10): 1129-1140, 2018 10.
Artigo em Inglês | MEDLINE | ID: mdl-30075490

RESUMO

OBJECTIVES: To evaluate a paediatric treatment-support intervention for home-based treatment of HIV infection or tuberculous meningitis (TBM). METHODS: A randomised-controlled study comparing local standard care (controls) with standard care plus intervention (combining adherence education, reinforcement and monitoring) in children aged 0-14 years. We recorded adherence measures (self-report, pill-count, drug-assays for isoniazid and rifampicin in urine and pyrazinamide in saliva), difficulties administering medication and PedsQL™questionnaires for health-related quality-of-life (HRQoL) and family impact. RESULTS: In the HIV group (6-months follow-up, n = 195), more children had above-median HRQoL-scores in the intervention group than in the control group (P = 0.009). Problems reported administering medication declined between baseline and follow-up for controls (P = 0.043). Disclosure of HIV status to the child increased between baseline and follow-up in both groups (intervention P < 0.001; control P = 0.031). In the TBM group (3-months follow-up, n = 43), all adherence measures remained high for both intervention and controls, except for rifampicin which declined between baseline and follow-up in the intervention group (P = 0.031). The intervention group maintained above median HRQoL-scores between baseline and follow-up, when the number of children with above-median HRQoL-scores decreased in the controls (P = 0.063). More children in the intervention group had above-median family impact-scores than controls (P = 0.040). CONCLUSIONS: The low-cost, culturally friendly treatment-support intervention had beneficial effects on health-related quality of life, family impact, caregiver disclosure of HIV status to the child, increased caregiver reporting of medication non-adherence and caregiver reporting of difficulties administering medication. Treatment adherence was not significantly affected in either HIV or TBM group.


Assuntos
Fármacos Anti-HIV/administração & dosagem , Antituberculosos/uso terapêutico , Proteção da Criança/estatística & dados numéricos , Infecções por HIV/tratamento farmacológico , Adesão à Medicação/estatística & dados numéricos , Tuberculose Meníngea/tratamento farmacológico , Adolescente , Criança , Proteção da Criança/psicologia , Pré-Escolar , Feminino , Infecções por HIV/psicologia , Humanos , Lactente , Recém-Nascido , Masculino , Adesão à Medicação/psicologia , Qualidade de Vida/psicologia , África do Sul , Tuberculose Meníngea/psicologia
13.
Clin Infect Dis ; 64(4): 501-509, 2017 02 15.
Artigo em Inglês | MEDLINE | ID: mdl-28172588

RESUMO

Tuberculous meningitis (TBM) remains a major cause of death and disability in tuberculosis-endemic areas, especially in young children and immunocompromised adults. Research aimed at improving outcomes is hampered by poor standardization, which limits study comparison and the generalizability of results. We propose standardized methods for the conduct of TBM clinical research that were drafted at an international tuberculous meningitis research meeting organized by the Oxford University Clinical Research Unit in Vietnam. We propose a core dataset including demographic and clinical information to be collected at study enrollment, important aspects related to patient management and monitoring, and standardized reporting of patient outcomes. The criteria proposed for the conduct of observational and intervention TBM studies should improve the quality of future research outputs, can facilitate multicenter studies and meta-analyses of pooled data, and could provide the foundation for a global TBM data repository.


Assuntos
Pesquisa Biomédica , Qualidade da Assistência à Saúde , Tuberculose Meníngea/diagnóstico , Tuberculose Meníngea/terapia , Antituberculosos/farmacologia , Antituberculosos/uso terapêutico , Pesquisa Biomédica/métodos , Pesquisa Biomédica/normas , Estudos Clínicos como Assunto/métodos , Estudos Clínicos como Assunto/normas , Coleta de Dados , Gerenciamento Clínico , Humanos , Mycobacterium tuberculosis , Avaliação de Resultados em Cuidados de Saúde , Tuberculose Meníngea/epidemiologia
15.
Metab Brain Dis ; 31(1): 197-204, 2016 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-26746433

RESUMO

In contrast to malaria, multiple sclerosis (MS) is infrequently found in Black Africans. We describe a 29 year old Nigerian female who developed an MS-like condition with symptoms similar to relapsing-remitting MS following malaria infection, leading to a diagnosis of MS. However, absence of hyperintense lesions in the brain and spinal cord presented a conundrum since not all the diagnostic criteria for MS were met. Pathology supported genetic testing (PSGT) was applied to combine family and personal medical history, lifestyle factors, and biochemical test results for interpretation of genetic findings. This approach provides a means of identifying risk factors for different subtypes of demyelinating disease. The patient was subsequently treated according to an individualised intervention program including nutritional supplementation as well as a change in diet and lifestyle. Deficiencies of vitamin B12, iron and vitamin D were addressed. Genetic analysis revealed absence of the HLA DRB1*1501 allele, considered to be the most prominent genetic risk factor for MS. Extended mutation analysis identified variations in three genes in the folate-vitamin B12 metabolic pathway, which could have increased the patient's sensitivity to the antifolate drugs used to treat the malaria. A glutathione-S-transferase GSTM1 null allele, previously associated with neurological complications of malaria, was also detected. Furthermore, a heterozygous variation in the iron-related transmembrane protease serine 6 (TMPRSS6) gene, rs855791 was found, which could have impacted the patient's iron status following two successive blood donations and exposure to malaria preceding the MS diagnosis. PSGT identifies relevant risk factors for demyelinating disorders resembling MS and uses the data for individualised treatment programs, and to systematically build a database that can provide evidence in large patient cohorts. Follow-up investigations may be suggested, such as whole exome sequencing in selected cases, to ensure that remyelination and restoration of function are achieved.


Assuntos
Deficiências de Ferro , Malária/complicações , Esclerose Múltipla/complicações , Deficiência de Vitaminas do Complexo B/complicações , Adulto , Dieta , Feminino , Testes Genéticos , Glutationa Transferase/genética , Cadeias HLA-DRB1/genética , Humanos , Estilo de Vida , Malária/dietoterapia , Malária/tratamento farmacológico , Proteínas de Membrana/genética , Esclerose Múltipla/diagnóstico , Esclerose Múltipla/dietoterapia , Mutação , Nigéria , Fatores de Risco , Serina Endopeptidases/genética
17.
Clin Infect Dis ; 69(4): 736, 2019 08 01.
Artigo em Inglês | MEDLINE | ID: mdl-30649220
18.
Childs Nerv Syst ; 30(10): 1711-6, 2014 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-24828794

RESUMO

PURPOSE: Transcranial Doppler imaging (TCDI) is potentially a valuable investigational tool in children with tuberculous meningitis (TBM), a condition often complicated by pathology relevant to Doppler imaging such as raised intracranial pressure (ICP) and cerebral vasculopathies. METHODS: Serial TCDI was performed on 20 TBM children with the aim of investigating cerebrovascular haemodynamics and the relationship between pulsatility index (PI) and ICP. RESULTS: We observed a poor correlation between ICP and PI in children with communicating hydrocephalus (p = 0.72). No decline in PI was noted following 7 days of medical therapy for communicating hydrocephalus (p = 0.78) despite a concomitant decline in ICP. Conversely, a decline in PI was noted in all four children with non-communicating hydrocephalus who underwent cerebrospinal fluid diversion. High blood flow velocities (BFV) in all the basal cerebral arteries were observed in 14 children (70 %). The high BFV persisted for 7 days suggesting stenosis due to vasculitis rather than functional vasospasm. Complete middle cerebral artery (MCA) occlusion, subnormal mean MCA velocities (<40 cm/s) and PIs (<0.4) correlated with radiologically proven large cerebral infarcts. CONCLUSIONS: TCDI-derived PI is not a reliable indicator of raised ICP in children with tuberculous hydrocephalus. This may be attributed to individual variation of tuberculous vascular disease, possibly compromising cerebral vascular compliance and resistance. Basal artery stenosis secondary to vasculitis is observed during the acute stage of TBM in the majority of children.


Assuntos
Hipertensão Intracraniana/etiologia , Tuberculose Meníngea/diagnóstico por imagem , Ultrassonografia Doppler Transcraniana/efeitos adversos , Vasculite do Sistema Nervoso Central/etiologia , Criança , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Mycobacterium tuberculosis/patogenicidade , Estudos Retrospectivos , Tempo , Tuberculose Meníngea/cirurgia
19.
Eur J Hum Genet ; 2024 May 03.
Artigo em Inglês | MEDLINE | ID: mdl-38702429

RESUMO

Next generation sequencing (NGS)-based tests have become routine first-line investigative modalities in paediatric neurology clinics in many high-income countries (HICs). Studies from these countries show that these tests are both cost-effective and reliable in diagnosing many complex childhood neurological diseases. However, NGS-based testing in low-and middle-income countries (LMICs) is limited due to affordability constraints. The primary objective of this study was to evaluate the diagnostic yield and impact of targeted gene panel sequencing in a selected paediatric cohort attending a tertiary paediatric neurology clinic in the Western Cape Province of South Africa. This retrospective study included 124 consecutive paediatric patients with neurological disease, aged 6 weeks to 17 years, referred for NGS-based multi-gene panel testing over a 41-month period. Twenty-four different disease group-specific panels were utilized. A caregiver experience questionnaire was administered when a pathogenic variant was identified. The overall study diagnostic yield (DY) was 45% (56/124 patients). The diagnostic yield in this study is similar to previously reported paediatric cohorts in HICs. The high yields for neuromuscular disorders (52%) and early epileptic encephalopathies (41%) suggest that NGS-based panels may be more cost-effective as first-line testing in well-defined phenotypes. The latter finding argues for early inclusion of all children with developmental epileptic encephalopathies (DEE), as early diagnosis leads to better treatment and avoidance of unnecessary investigations.

20.
Semin Pediatr Neurol ; 47: 101071, 2023 10.
Artigo em Inglês | MEDLINE | ID: mdl-37919031

RESUMO

UPDATE ON THE DIAGNOSIS AND MANAGEMENT OF TUBERCULOUS MENINGITIS IN CHILDREN: Ronald van Toorn, Regan Solomons Seminars in Pediatric Neurology Volume 21, Issue 1, March 2014, Pages 12-18 Tuberculous meningitis (TBM), the most devastating manifestation of tuberculosis, is often missed or overlooked because of nonspecific symptoms and difficulties in diagnosis. It continues to be an important cause of neurologic handicap in resource-poor countries. Owing to the suboptimal performance of diagnostic tests of TBM, diagnosis relies on thorough history, clinical examination, and relevant investigations. The development of affordable, accurate diagnostic tests for TBM in resource-poor settings remains a priority. Short intensified treatment is safe and effective in both human immunodeficiency virus (HIV)-infected and HIV-uninfected children. Treatment of tuberculous hydrocephalus depends on the level of the cerebrospinal fluid obstruction. Corticosteroids reduce risk of neurodisability and death in HIV-uninfected children. Thalidomide should be considered in children compromised by tuberculosis abscesses and tuberculous-related optochiasmic arachnoiditis. In resource-poor countries, home-based TBM treatment after initial in-hospital stabilization is feasible in carefully selected patients. Early diagnosis and treatment of TBM is the single most important factor determining outcome.


Assuntos
Infecções por HIV , Tuberculose Meníngea , Humanos , Criança , Tuberculose Meníngea/diagnóstico , Tuberculose Meníngea/tratamento farmacológico , Infecções por HIV/complicações , Infecções por HIV/diagnóstico
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