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1.
J Pak Med Assoc ; 72(11): 2339-2340, 2022 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-37013321

RESUMO

Medulloblastoma (MB) is among the most common malignant paediatric brain tumours usually arising in the cerebellum. The treatment is surgical resection followed by craniospinal radiation with or without chemotherapy. We assessed the current literature on survivors of MB and their quality of life (QoL). The QoL of MB survivors is significantly compromised in terms of decreased neurocognitive functions, Intelligence Quotient (IQ), and social functioning. These also lead to a compromised overall performance, school performance, lack of employment, social isolation, and caregiver burden. The survivors often self-reported better performances as compared to objective performance and that rated by the caregivers. The predictors of worse QoL include earlier age at diagnosis, hydrocephalus, shunt placement, altered mental status at diagnosis, incomplete/subtotal resection of the tumour, and metastatic disease.


Assuntos
Neoplasias Encefálicas , Neoplasias Cerebelares , Meduloblastoma , Criança , Humanos , Meduloblastoma/tratamento farmacológico , Meduloblastoma/cirurgia , Qualidade de Vida , Neoplasias Cerebelares/tratamento farmacológico , Neoplasias Cerebelares/psicologia , Neoplasias Encefálicas/terapia , Sobreviventes/psicologia
2.
J Cancer Res Clin Oncol ; 147(6): 1843-1856, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33399987

RESUMO

PURPOSE: To analyze the outcomes and predictors in a large series of cerebellar glioblastomas in order to guide patient management. METHODS: The French brain tumor database and the Club de Neuro-Oncologie of the Société Française de Neurochirurgie retrospectively identified adult patients with cerebellar glioblastoma diagnosed between 2003 and 2017. Diagnosis was confirmed by a centralized neuropathological review. RESULTS: Data from 118 cerebellar glioblastoma patients were analyzed (mean age 55.9 years, 55.1% males). The clinical presentation associated raised intracranial pressure (50.8%), static cerebellar syndrome (68.6%), kinetic cerebellar syndrome (49.2%) and/or cranial nerve disorders (17.8%). Glioblastomas were hemispheric (55.9%), vermian (14.4%) or both (29.7%). Hydrocephalus was present in 49 patients (41.5%). Histologically, tumors corresponded either to IDH-wild-type or to K27-mutant glioblastomas. Surgery consisted of total (12.7%), subtotal (35.6%), partial resection (33.9%) or biopsy (17.8%). The postoperative Karnofsky performance status was improved, stable and worsened in 22.4%, 43.9% and 33.7% of patients, respectively. Progression-free and overall survivals reached 5.1 months and 9.1 months, respectively. Compared to other surgical strategies, total or subtotal resection improved the Karnofsky performance status (33.3% vs 12.5%, p < 0.001), prolonged progression-free and overall survivals (6.5 vs 4.3 months, p = 0.015 and 16.7 vs 6.2 months, p < 0.001, respectively) and had a comparable complication rate (40.4% vs 31.1%, p = 0.29). After total or subtotal resection, the functional outcomes were correlated with age (p = 0.004) and cerebellar hemispheric tumor location (p < 0.001) but not brainstem infiltration (p = 0.16). CONCLUSION: In selected patients, maximal resection of cerebellar glioblastoma is associated with improved onco-functional outcomes, compared with less invasive procedures.


Assuntos
Neoplasias Cerebelares , Glioblastoma , Adulto , Idoso , Neoplasias Cerebelares/diagnóstico , Neoplasias Cerebelares/mortalidade , Neoplasias Cerebelares/psicologia , Neoplasias Cerebelares/terapia , Cognição/fisiologia , Terapia Combinada , Feminino , França/epidemiologia , Glioblastoma/diagnóstico , Glioblastoma/mortalidade , Glioblastoma/psicologia , Glioblastoma/terapia , Humanos , Masculino , Pessoa de Meia-Idade , Neuroimagem/métodos , Procedimentos Neurocirúrgicos/métodos , Procedimentos Neurocirúrgicos/estatística & dados numéricos , Prognóstico , Análise de Sobrevida , Resultado do Tratamento
3.
Cerebellum ; 20(3): 462-480, 2021 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-33417160

RESUMO

Medulloblastoma is a malign posterior fossa brain tumor, mostly occurring in childhood. The CNS-directed chemoradiotherapy treatment can be very harmful to the developing brain and functional outcomes of these patients. However, what the underlying neurotoxic mechanisms are remain inconclusive. Hence, this review summarizes the existing literature on the association between advanced neuroimaging and neurocognitive changes in patients that were treated for pediatric medulloblastoma. The PubMed/Medline database was extensively screened for studies investigating the link between cognitive outcomes and multimodal magnetic resonance (MR) imaging in childhood medulloblastoma survivors. A behavioral meta-analysis was performed on the available IQ scores. A total of 649 studies were screened, of which 22 studies were included. Based on this literature review, we conclude medulloblastoma patients to be at risk for white matter volume loss, more frequent white matter lesions, and changes in white matter microstructure. Such microstructural alterations were associated with lower IQ, which reached the clinical cut-off in survivors across studies. Using functional MR scans, changes in activity were observed in cerebellar areas, associated with working memory and processing speed. Finally, cerebral microbleeds were encountered more often, but these were not associated with cognitive outcomes. Regarding intervention studies, computerized cognitive training was associated with changes in prefrontal and cerebellar activation and physical training might result in microstructural and cortical alterations. Hence, to better define the neural targets for interventions in pediatric medulloblastoma patients, this review suggests working towards neuroimaging-based predictions of cognitive outcomes. To reach this goal, large multimodal prospective imaging studies are highly recommended.


Assuntos
Neoplasias Cerebelares/diagnóstico por imagem , Neoplasias Cerebelares/psicologia , Meduloblastoma/diagnóstico por imagem , Meduloblastoma/psicologia , Adolescente , Biomarcadores , Criança , Pré-Escolar , Cognição , Feminino , Humanos , Lactente , Imageamento por Ressonância Magnética , Masculino , Neuroimagem , Testes Neuropsicológicos
4.
Neurochirurgie ; 67(1): 90-98, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29716738

RESUMO

BACKGROUND: Children who have been treated for a medulloblastoma often suffer long-term cognitive impairments that often negatively affect their academic performance and quality of life. In this article, we will review the neuropsychological consequences of childhood medulloblastoma and discuss the risk factors known to influence the presence and severity of these cognitive impairments and possible interventions to improve their quality of life. METHODS: This narrative review was based on electronic searches of PubMed to identify all relevant studies. RESULTS: Although many types of cognitive impairments often emerge during a child's subsequent development, the core cognitive domains that are most often affected in children treated for a medulloblastoma are processing speed, attention and working memory. The emergence and magnitude of these deficits varies greatly among patients. They are influenced by demographic (age at diagnosis, parental education), medical and treatment-related factors (perioperative complications, including posterior fossa syndrome, radiation therapy dose, etc.), and the quality of interventions such as school adaptations provided to the child or rehabilitation programs that focus on cognitive skills, behavior and psychosocial functioning. CONCLUSION: These patients require specialized and coordinated multidisciplinary rehabilitation follow-up that provides timely and adapted assessments and culminates in personalized intervention goals being set with the patient and the family. Follow-up should be continued until referral to adult services.


Assuntos
Neoplasias Cerebelares/psicologia , Disfunção Cognitiva/psicologia , Meduloblastoma/psicologia , Testes Neuropsicológicos , Adulto , Atenção/fisiologia , Neoplasias Cerebelares/complicações , Neoplasias Cerebelares/terapia , Criança , Pré-Escolar , Cognição/fisiologia , Terapia Cognitivo-Comportamental/tendências , Disfunção Cognitiva/etiologia , Disfunção Cognitiva/terapia , Feminino , Humanos , Masculino , Meduloblastoma/complicações , Meduloblastoma/terapia , Qualidade de Vida/psicologia
5.
World Neurosurg ; 144: 222-230, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32949806

RESUMO

The cerebellum was long perceived to be a region of limited importance with primary functions in the regulation of motor control. A degree of its functional topography in motor modulation has been traditionally appreciated. However, an evolving body of evidence supports its role in a range of cognitive processes, including executive decision making, language, emotional processing, and working memory. To this end, numerous studies of cerebellar stroke syndromes as well as investigations with functional magnetic resonance imaging and diffusion tensor imaging have given clinicians a better model of the functional topography within the cerebellum and the essential lanes of communication with the cerebrum. With this deeper understanding, neurosurgeons should integrate these domains into the perioperative evaluation and postoperative rehabilitation of patients with cerebellar tumors. This review aims to discuss these understandings and identify valuable tools for implementation into clinical practice.


Assuntos
Neoplasias Cerebelares/psicologia , Neoplasias Cerebelares/cirurgia , Transtornos Cognitivos/etiologia , Transtornos Cognitivos/psicologia , Transtornos do Humor/etiologia , Transtornos do Humor/psicologia , Procedimentos Neurocirúrgicos/métodos , Doenças Cerebelares/diagnóstico por imagem , Doenças Cerebelares/psicologia , Doenças Cerebelares/reabilitação , Doenças Cerebelares/cirurgia , Neoplasias Cerebelares/diagnóstico por imagem , Neoplasias Cerebelares/reabilitação , Cerebelo/anatomia & histologia , Cerebelo/fisiologia , Cerebelo/cirurgia , Transtornos Cognitivos/diagnóstico por imagem , Transtornos Cognitivos/reabilitação , Humanos , Imageamento por Ressonância Magnética , Transtornos do Humor/diagnóstico por imagem , Transtornos do Humor/reabilitação
6.
J Neurooncol ; 148(1): 117-130, 2020 May.
Artigo em Inglês | MEDLINE | ID: mdl-32367436

RESUMO

BACKGROUND: Combined radiochemotherapy followed by maintenance chemotherapy with cisplatin, lomustine and vincristine within the NOA-07 study resulted in considerable short-term toxicity in adult medulloblastoma patients. Here we investigated the long-term impact of this treatment, focusing on neurocognitive functioning and health-related quality of life (HRQoL). METHODS: Neurocognitive functioning and HRQoL scores over time were determined, and differences between the post-treatment and follow-up assessments were calculated up to 18 months for neurocognition and 60 months for HRQoL. RESULTS: 28/30 patients were analyzed. The three preselected HRQoL scales (role, social and cognitive functioning) showed improved scores, to a clinically relevant extent (≥ 10 points), compared to post-treatment levels up to 30 months, but decreased afterwards. Z-scores for verbal working memory were worse during follow-up compared to post-treatment scores and remained impaired during 18 months follow-up (i.e. z-score below - 1 standard deviation). Attention was impaired post-treatment, and remained impaired to a clinically relevant extent during follow-up. Coordination/processing speed and lexical verbal fluency improved compared to post-treatment scores, and remained within the normal range thereafter. Other tests of verbal fluency were stable over time, with z-scores within the normal range. CONCLUSIONS: This long-term follow-up study showed that the NOA-07 treatment regimen was not associated with a deterioration in HRQoL in the post-treatment period. Verbal working memory deteriorated, while other neurocognitive domains did not seem to be impacted negatively by the treatment.


Assuntos
Neoplasias Cerebelares/psicologia , Neoplasias Cerebelares/terapia , Quimiorradioterapia/efeitos adversos , Quimioterapia de Manutenção/efeitos adversos , Meduloblastoma/psicologia , Meduloblastoma/terapia , Qualidade de Vida , Adulto , Terapia Combinada/efeitos adversos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Testes Neuropsicológicos , Resultado do Tratamento , Adulto Jovem
7.
Cerebellum ; 19(1): 78-88, 2020 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-31832994

RESUMO

Cerebellar mutism syndrome (CMS) is a common surgical sequela in children following posterior fossa tumor (PFT) resection. Here, we analyze the neuropsychological features associated with PFT in children, focusing particularly on the differential profiles associated with the presence or absence of CMS after surgery. We further examine the effect of post-resection treatments, tumor type, and presence/absence of hydrocephalus on surgical outcome. Thirty-six patients diagnosed with PFT (19 with and 17 without CMS) and 34 age- and gender-matched healthy controls (HCs) were recruited. A comprehensive neuropsychological evaluation was conducted in all patients postoperatively and in HCs, including an assessment of general cognitive ability, motor skills, perception, language, memory, attention, executive functions, and academic competence. CMS was found to be a clinical marker of lower neuropsychological profile scores across all cognitive domains except auditory-verbal processing and visual memory tasks. PFT patients not presenting CMS exhibited milder impairment in intellectual functioning, motor tasks, reasoning, language, verbal learning and recall, attention, cognitive executive functions, and academic competence. High-grade tumors were associated with slower processing speed and verbal delayed recall as well as alterations in selective and sustained attention. Hydrocephalus was detrimental to motor functioning and nonverbal reasoning. Patients who had undergone surgery, chemotherapy, and radiotherapy presented impaired processing speed, verbal learning, and reading. In addition to the deleterious effects of PFT, post-resection PFT treatments have a negative cognitive impact. These undesired consequences and the associated tumor-related damage can be assessed using standardized, long-term neuropsychological evaluation when planning rehabilitation.


Assuntos
Neoplasias Cerebelares/psicologia , Neoplasias Infratentoriais/psicologia , Mutismo/psicologia , Testes Neuropsicológicos , Complicações Pós-Operatórias/psicologia , Adolescente , Neoplasias Cerebelares/diagnóstico , Neoplasias Cerebelares/cirurgia , Criança , Pré-Escolar , Feminino , Humanos , Neoplasias Infratentoriais/diagnóstico , Neoplasias Infratentoriais/cirurgia , Masculino , Mutismo/diagnóstico , Mutismo/etiologia , Complicações Pós-Operatórias/diagnóstico , Complicações Pós-Operatórias/etiologia
8.
J Neurooncol ; 142(1): 39-48, 2019 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-30607709

RESUMO

PURPOSE: Advances in the treatment of pediatric medulloblastoma have led to improved survival rates, though treatment-related toxicity leaves children with significant long-term deficits. There is significant variability in the cognitive outcome of medulloblastoma survivors, and it has been suggested that this variability may be attributable to genetic factors. The aim of this study was to explore the contributions of single nucleotide polymorphisms (SNPs) in two genes, peroxisome proliferator activated receptor (PPAR) and glutathione-S-transferase (GST), to changes in general intellectual functioning in medulloblastoma survivors. METHODS: Patients (n = 44, meanage = 6.71 years, 61.3% males) were selected on the basis of available tissue samples and neurocognitive measures. Patients received surgical tumor resection, craniospinal radiation, radiation boost to the tumor site, and multiagent chemotherapy. Genotyping analyses were completed using the Illumina Human Omni2.5 BeadChip, and 41 single nucleotide polymorphisms (SNPs) were assessed across both genes. We used a machine learning algorithm to identify polymorphisms that were significantly associated with declines in general intellectual functioning following treatment for medulloblastoma. RESULTS: We identified age at diagnosis, radiation therapy, chemotherapy, and eight SNPs associated with PPARs as predictors of general intellectual functioning. Of the eight SNPs identified, PPARα (rs6008197), PPARγ (rs13306747), and PPARδ (rs3734254) were most significantly associated with long-term changes in general intellectual functioning in medulloblastoma survivors. CONCLUSIONS: PPAR polymorphisms may predict intellectual outcome changes in children treated for medulloblastoma. Importantly, emerging evidence suggests that PPAR agonists may provide an opportunity to minimize the effects of treatment-related cognitive sequelae in these children.


Assuntos
Sobreviventes de Câncer , Neoplasias Cerebelares/genética , Glutationa Transferase/genética , Inteligência/genética , Meduloblastoma/genética , Receptores Ativados por Proliferador de Peroxissomo/genética , Polimorfismo de Nucleotídeo Único , Neoplasias Cerebelares/patologia , Neoplasias Cerebelares/psicologia , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Meduloblastoma/patologia , Meduloblastoma/psicologia
9.
J Neurooncol ; 141(2): 403-411, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30467812

RESUMO

PURPOSE: Advantages to computerized cognitive assessment include increased precision of response time measurement and greater availability of alternate forms. Cogstate is a computerized cognitive battery developed to monitor attention, memory, and processing speed. Although the literature suggests the domains assessed by Cogstate are areas of deficit in children undergoing treatment for medulloblastoma, the validity of Cogstate in this population has not been previously investigated. METHODS: Children participating in an ongoing prospective trial of risk-adapted therapy for newly diagnosed medulloblastoma (n = 73; mean age at baseline = 12.1 years) were administered Cogstate at baseline (after surgery, prior to adjuvant therapy) and 3 months later (6 weeks after completion of radiation therapy). Gold-standard neuropsychological measures of similar functions were administered at baseline. RESULTS: Linear mixed models revealed performance within age expectations at baseline across Cogstate tasks. Following radiation therapy, there was a decline in performance on Cogstate measures of reaction time (Identification and One Back). Females exhibited slower reaction time on One Back and Detection tasks at baseline. Higher-dose radiation therapy and younger age were associated with greater declines in performance. Pearson correlations revealed small-to-moderate correlations between Cogstate reaction time and working memory tasks with well-validated neuropsychological measures. CONCLUSIONS: Cogstate is sensitive to acute cognitive effects experienced by some children with medulloblastoma and demonstrates associations with clinical predictors established in the literature. Correlations with neuropsychological measures of similar constructs offer additional evidence of validity. The findings provide support for the utility of Cogstate in monitoring acute cognitive effects in pediatric cancer.


Assuntos
Neoplasias Cerebelares/psicologia , Neoplasias Cerebelares/radioterapia , Disfunção Cognitiva/diagnóstico , Irradiação Craniana/efeitos adversos , Diagnóstico por Computador , Meduloblastoma/psicologia , Meduloblastoma/radioterapia , Testes Neuropsicológicos , Adolescente , Adulto , Neoplasias Cerebelares/complicações , Criança , Pré-Escolar , Disfunção Cognitiva/etiologia , Feminino , Humanos , Masculino , Meduloblastoma/complicações , Tempo de Reação , Software , Adulto Jovem
10.
Eur J Cancer Care (Engl) ; 27(6): e12912, 2018 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-30204287

RESUMO

Children with medulloblastoma (MB) are predisposed for negative cognitive sequela, which has been widely identified in this population. The purpose of the present study was to explore cognitive deficits and psychopathological symptoms and analyse their relation among MB survivors. The Wechsler Intelligence Scale for Children and the Mini International Neuropsychiatric Interview (MINI-KID) was administered to 34 MB survivors to measure cognitive functioning and psychopathological symptoms. The MB survivors had lower global IQ (86.41 [79.70-93.13]) compared with the control population mean. We found impaired functioning in all IQ subscales in the MB survivors group, of which processing speed (84.15 [77.71-90.58]) was the most affected. Higher radiation dose and high-dose chemotherapy with stem cell rescue were significantly associated factors for lowered global IQ, while age at diagnosis, sex and time period from diagnosis were not significantly associated. Compulsive disorder, generalised anxiety, separation anxiety and posttraumatic stress disorder were significantly more prevalent in the MB survivor group than a group of 46 control participants. No correlation was found between the cognitive deficits and the psychopathological symptoms. Our results identify that MB survivors suffer from cognitive and psychopathological impairments, and these could exist independently from each other.


Assuntos
Antineoplásicos/administração & dosagem , Ansiedade de Separação/psicologia , Sobreviventes de Câncer/psicologia , Neoplasias Cerebelares/terapia , Disfunção Cognitiva/psicologia , Irradiação Craniana , Meduloblastoma/terapia , Transtorno Obsessivo-Compulsivo/psicologia , Transtornos de Estresse Pós-Traumáticos/psicologia , Adolescente , Fatores Etários , Transtornos de Ansiedade/psicologia , Estudos de Casos e Controles , Neoplasias Cerebelares/psicologia , Quimiorradioterapia , Criança , Feminino , Humanos , Masculino , Meduloblastoma/psicologia , Doses de Radiação , Transplante de Células-Tronco , Escalas de Wechsler
11.
J Neurosci ; 38(38): 8251-8261, 2018 09 19.
Artigo em Inglês | MEDLINE | ID: mdl-30126966

RESUMO

Medulloblastomas, the most common malignant brain tumor in children, are typically treated with radiotherapy. Refinement of this treatment has greatly improved survival rates in this patient population. However, radiotherapy also profoundly affects the developing brain and is associated with reduced hippocampal volume and blunted hippocampal neurogenesis. Such hippocampal (as well as extrahippocampal) abnormalities likely contribute to cognitive impairments in this population. While several aspects of memory have been examined in this population, the impact of radiotherapy on autobiographical memory has not previously been evaluated. Here we evaluated autobiographical memory in male and female patients who received radiotherapy for posterior fossa tumors (PFTs), including medulloblastoma, during childhood. Using the Children's Autobiographical Interview, we retrospectively assessed episodic and nonepisodic details for events that either preceded (i.e., remote) or followed (i.e., recent) treatment. For post-treatment events, PFT patients reported fewer episodic details compared with control subjects. For pretreatment events, PFT patients reported equivalent episodic details compared with control subjects. In a range of conditions associated with reduced hippocampal volume (including medial temporal lobe amnesia, mild cognitive impairment, Alzheimer's disease, temporal lobe epilepsy, transient epileptic amnesia, frontal temporal dementia, traumatic brain injury, encephalitis, and aging), loss of episodic details (even in remote memories) accompanies hippocampal volume loss. It is therefore surprising that pretreatment episodic memories in PFT patients with reduced hippocampal volume are retained. We discuss these findings in light of the anterograde and retrograde impact on memory of experimentally suppressing hippocampal neurogenesis in rodents.SIGNIFICANCE STATEMENT Pediatric medulloblastoma survivors develop cognitive dysfunction following cranial radiotherapy treatment. We report that radiotherapy treatment impairs the ability to form new autobiographical memories, but spares preoperatively acquired autobiographical memories. Reductions in hippocampal volume and cortical volume in regions of the recollection network appear to contribute to this pattern of preserved preoperative, but impaired postoperative, memory. These findings have significant implications for understanding disrupted mnemonic processing in the medial temporal lobe memory system and in the broader recollection network, which are inadvertently affected by standard treatment methods for medulloblastoma tumors in children.


Assuntos
Neoplasias Cerebelares/psicologia , Irradiação Craniana/efeitos adversos , Hipocampo/efeitos da radiação , Meduloblastoma/psicologia , Memória Episódica , Rememoração Mental/efeitos da radiação , Adolescente , Neoplasias Cerebelares/diagnóstico por imagem , Neoplasias Cerebelares/radioterapia , Criança , Feminino , Hipocampo/diagnóstico por imagem , Humanos , Imageamento por Ressonância Magnética , Masculino , Meduloblastoma/diagnóstico por imagem , Meduloblastoma/radioterapia , Testes Neuropsicológicos , Tamanho do Órgão , Estudos Retrospectivos
12.
Pediatr Hematol Oncol ; 35(1): 76-89, 2018 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-29652554

RESUMO

BACKGROUND: Parent-reported attention problems have been associated with social functioning in a broad sample of pediatric cancer survivors. OBJECTIVE: The present study focused on a more homogeneous sample (pediatric medulloblastoma survivors), with the novel inclusion of self-reported attention ratings. PARTICIPANTS/METHODS: Thirty-three pediatric medulloblastoma survivors, ages 7-18 years, completed a brief IQ measure and self-report of attentional and social functioning. Parents rated patients' attentional and social functioning. RESULTS: Mean attention ratings were average based on both parent- and self-report, though parent ratings were significantly discrepant from normative means. No significant demographic or treatment-related predictors of self-reported attention problems were identified, whereas female gender was associated with greater parent-reported attention problems. Canonical correlation analysis revealed a significant association between parent-reported attention difficulties and social functioning in pediatric medulloblastoma survivors, but there was no association between self-reported attention problems and measures of social functioning. CONCLUSIONS: Consistent with existing literature in broader samples of pediatric cancer survivors, the present study further affirms attention deficits as an underlying contributor to social deficits in pediatric medulloblastoma survivors while also finding little relationship between self-reports of attention and social performance. Notably, present findings provide additional support suggesting that attention functioning is a more significant contributor to social outcomes for pediatric medulloblastoma survivors than the level of cognitive ability.


Assuntos
Atenção , Neoplasias Cerebelares/psicologia , Cognição , Meduloblastoma/psicologia , Comportamento Social , Adolescente , Neoplasias Cerebelares/terapia , Criança , Feminino , Humanos , Masculino , Meduloblastoma/terapia , Autorrelato , Fatores Sexuais
13.
Cancer ; 123(4): 551-559, 2017 02 15.
Artigo em Inglês | MEDLINE | ID: mdl-27787875

RESUMO

Medulloblastoma, the most common malignant brain tumor of childhood, occurs in the posterior fossa, the part of the intracranial cavity that contains the brainstem and the cerebellum. The cerebellum is involved in many complex aspects of human behavior and function, and when it is disrupted or insulted, this can lead to significant sequelae in children with posterior fossa tumors. A constellation of impairing and distressing symptoms, including mutism, ataxia/hypotonia, and emotional lability, develops in approximately 25% of children after the surgical resection of posterior fossa tumors. These symptoms may impede treatment and frequently require intervention in order for children to be able to participate in their care. The eventual recovery of speech occurs for most, but with slowly improving dysarthria over many months. Behavioral changes and emotional lability also occur. This phenomenon has been classified differently by different investigators over the past 35 years. For the purposes of this article, the term posterior fossa syndrome is used to refer to the neuropsychiatric and behavioral features that compose this condition. The current review summarizes the development of the clinical understanding of this phenomenon with a focus on near- and long-term psychosocial and psychiatric implications. Also, clinical examples of the presentation, management, and lasting implications of this syndrome are provided. This review is intended to be a resource for clinicians who treat affected children. Cancer 2017;123:551-559. © 2016 American Cancer Society.


Assuntos
Neoplasias Cerebelares/fisiopatologia , Neoplasias Infratentoriais/fisiopatologia , Meduloblastoma/fisiopatologia , Complicações Pós-Operatórias/fisiopatologia , Neoplasias Cerebelares/complicações , Neoplasias Cerebelares/psicologia , Neoplasias Cerebelares/cirurgia , Criança , Humanos , Neoplasias Infratentoriais/complicações , Neoplasias Infratentoriais/psicologia , Neoplasias Infratentoriais/cirurgia , Meduloblastoma/complicações , Meduloblastoma/psicologia , Meduloblastoma/cirurgia , Mutismo/complicações , Mutismo/fisiopatologia , Complicações Pós-Operatórias/psicologia
15.
Child Neuropsychol ; 22(5): 570-86, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-25825959

RESUMO

It has been proposed previously that extrinsic motivation may enable survivors of childhood medulloblastoma to significantly improve aspects of neurocognitive performance. In healthy populations, enhanced motivation has been shown to promote academic fluency, a domain likely more relevant to the educational outcomes of pediatric medulloblastoma survivors than academic skill development. The present study investigates the effect of enhanced extrinsic motivation on fluent (i.e., accurate and efficient) academic performance in pediatric medulloblastoma survivors. Participants were 36 children, ages 7-18, who had completed treatment for medulloblastoma. Participants completed a neuropsychological battery that included administration of equivalent tasks on Forms A and B of the Woodcock-Johnson III Tests of Achievement. Half were randomly assigned to an incentive condition prior to the administration of Form B. Provision of a performance-based incentive resulted in statistically significant improvement, but not normalization of function, in performance on measures of academic fluency. No demographic, treatment-related, academic, neuropsychological, or self-perception variables predicted response to incentive. Findings suggest that academic performance of survivors may significantly improve under highly motivating conditions. In addition to implications for educational services, this finding raises the novel possibility that decreased motivation represents an inherent neuropsychological deficit in this population and provides a rationale for further investigation of factors affecting individual differences in motivational processes. Further, by examining effort in a context where effort is not inherently suspect, present findings also significantly contribute to the debate regarding the effects of effort and motivation on neuropsychological performance.


Assuntos
Logro , Neoplasias Cerebelares/psicologia , Meduloblastoma/psicologia , Motivação , Sobreviventes/psicologia , Adolescente , Criança , Feminino , Humanos , Masculino , Testes Neuropsicológicos/estatística & dados numéricos
16.
Eur J Paediatr Neurol ; 20(1): 25-37, 2016 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-26631949

RESUMO

BACKGROUND AND AIMS: Besides motor function the cerebellum subserves frontal lobe functions. Thus, we investigated executive functions in pediatric posterior fossa tumor survivors. METHODS: We tested information processing, aspects of attention, planning and intelligence in 42 pediatric posterior fossa tumor survivors (mean age 14.63 yrs, SD 5.03). Seventeen low-grade tumor patients (LGCT) were treated with surgery only and 25 high-grade tumors patients (HGCT) received postsurgical adjuvant treatment. We evaluated simple reaction time, executive functioning, i.e. visuospatial memory, inhibition, and mental flexibility using the Amsterdam Neuropsychological Tasks program, whereas forward thinking was assessed with the Tower of London-test. Intelligence was determined using the Wechsler Intelligence Scale. Ataxia was assessed with the International Cooperative Ataxia Rating Scale. RESULTS: About one third of each patient group showed forward thinking scores below one standard deviation of the norm. Impaired forward thinking correlated significantly with degree of ataxia (r = -0.39, p = 0.03) but not with fluid intelligence. Both patient groups exhibited executive function deficits in accuracy and reaction speed in more difficult tasks involving information speed and attention flexibility. Still, HGCT patients were significantly slower and committed more errors. Working memory was inferior in HGCT patients. CONCLUSION: Pediatric cerebellar tumor survivors with different disease and treatment related brain damage exhibit similar patterns of impairment in executive functioning, concerning forward thinking, inhibition and mental flexibility. The deficits are larger in high-grade tumor patients. The pattern of function loss seen in both groups is most probably due to comparable lesions to cerebro-cerebellar circuits that are known to modulate critical executive functions.


Assuntos
Neoplasias Cerebelares/psicologia , Função Executiva , Neoplasias Infratentoriais/psicologia , Adolescente , Ataxia/etiologia , Ataxia/fisiopatologia , Ataxia/psicologia , Atenção , Neoplasias Cerebelares/fisiopatologia , Neoplasias Cerebelares/cirurgia , Criança , Feminino , Lobo Frontal/fisiopatologia , Humanos , Neoplasias Infratentoriais/fisiopatologia , Neoplasias Infratentoriais/cirurgia , Inibição Psicológica , Testes de Inteligência , Masculino , Memória de Curto Prazo , Processos Mentais , Gradação de Tumores , Testes Neuropsicológicos , Tempo de Reação , Sobreviventes
17.
Rev Gaucha Enferm ; 36(2): 76-81, 2015 Jun.
Artigo em Português | MEDLINE | ID: mdl-26334412

RESUMO

OBJECTIVE: To understand the influence of play in the care process as perceived by children with cancer. METHOD: A descriptive, exploratory and qualitative study conducted in a children's cancer unit in Natal, Rio Grande do Norte, Brazil. Data were collected between October 2013 and January 2014 by means of photographic records and semi-structured interviews with eight children, and content analysis with emphasis on two categories: Auxiliary instruments during play; and The influence of play in the process of care. RESULTS: Recreational activities involve watching television, using computers, games and toys, drawing, the playroom and the clown, which provide fun, feelings of joy, distraction and interaction with other people. CONCLUSION: There are several activities at the hospital that are considered play-related and, for the children, they all benefit their care process.


Assuntos
Criança Hospitalizada/psicologia , Neoplasias/terapia , Ludoterapia , Neoplasias Cerebelares/psicologia , Neoplasias Cerebelares/terapia , Criança , Feminino , Humanos , Entrevistas como Assunto , Masculino , Meduloblastoma/enfermagem , Meduloblastoma/psicologia , Meduloblastoma/terapia , Neoplasias/enfermagem , Neoplasias/psicologia , Relações Enfermeiro-Paciente , Processo de Enfermagem , Aceitação pelo Paciente de Cuidados de Saúde , Ludoterapia/instrumentação , Ludoterapia/métodos , Jogos e Brinquedos , Leucemia-Linfoma Linfoblástico de Células Precursoras/enfermagem , Leucemia-Linfoma Linfoblástico de Células Precursoras/psicologia , Leucemia-Linfoma Linfoblástico de Células Precursoras/terapia , Pesquisa Qualitativa , Jogos de Vídeo
18.
Int J Radiat Oncol Biol Phys ; 92(5): 978-985, 2015 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-26194675

RESUMO

PURPOSE: In the European HIT-SIOP PNET4 randomized controlled trial, children with standard risk medulloblastoma were allocated to hyperfractionated radiation therapy (HFRT arm, including a partially focused boost) or standard radiation therapy (STRT arm), followed, in both arms, by maintenance chemotherapy. Event-free survival was similar in both arms. Previous work showed that the HFRT arm was associated with worse growth and better questionnaire-based executive function, especially in children <8 years of age at diagnosis. Therefore, the aim of this study was to compare performance-based cognitive outcomes between treatment arms. METHODS AND MATERIALS: Neuropsychological data were collected prospectively in 137 patients. Using the Wechsler Intelligence Scales, Kaufman Assessment Battery for Children, and Raven's Progressive Matrices, we estimated full-scale intelligence quotient (FSIQ) and, when available, verbal IQ (VIQ), performance IQ (PIQ), working memory index (WMI), and processing speed index (PSI). RESULTS: Among the 137 participants (HFRT arm n=71, STRT arm n=66, 63.5% males), mean (±SD) ages at diagnosis and assessment respectively were 9.3 (±3.2) years of age (40.8% < 8 years of age at diagnosis) and 14.6 (±4.3) years of age. Mean (±SD) FSIQ was 88 (±19), and mean intergroup difference was 3.88 (95% confidence interval: -2.66 to 10.42, P=.24). No significant differences were found in children >8 years of age at diagnosis. In children <8 years of age at diagnosis, a marginally significant trend toward higher VIQ was found in those treated in the HFRT arm; a similar trend was found for PSI but not for PIQ, WMI, or FSIQ (mean intergroup differences were: 12.02 for VIQ [95% CI: 2.37-21.67; P=.02]; 3.77 for PIQ [95% CI: -5.19 to 12.74; P>.10]; 5.20 for WMI [95% CI: -2.07 to 12.47; P>.10]; 10.90 for PSI [95% CI: -1.54 to 23.36; P=.08]; and 5.28 for FSIQ [95% CI: -4.23 to 14.79; P>.10]). CONCLUSIONS: HFRT was associated with marginally higher VIQ in children <8 years of age at diagnosis, consistent with a previous report using questionnaire-based data. However, overall cognitive ability was not significantly different.


Assuntos
Neoplasias Cerebelares/radioterapia , Cognição/efeitos da radiação , Inteligência/efeitos da radiação , Meduloblastoma/radioterapia , Adolescente , Fatores Etários , Análise de Variância , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Cerebelares/tratamento farmacológico , Neoplasias Cerebelares/psicologia , Criança , Pré-Escolar , Cisplatino/administração & dosagem , Cognição/efeitos dos fármacos , Cognição/fisiologia , Transtornos Cognitivos , Intervalos de Confiança , Radiação Cranioespinal/métodos , Fracionamento da Dose de Radiação , Europa (Continente) , Função Executiva/fisiologia , Função Executiva/efeitos da radiação , Feminino , Humanos , Inteligência/fisiologia , Testes de Inteligência , Lomustina/administração & dosagem , Quimioterapia de Manutenção/métodos , Masculino , Meduloblastoma/tratamento farmacológico , Meduloblastoma/psicologia , Memória/fisiologia , Memória/efeitos da radiação , Estudos Prospectivos , Análise de Regressão , Vincristina/administração & dosagem , Adulto Jovem
19.
Rev. gaúch. enferm ; 36(2): 76-81, Apr-Jun/2015.
Artigo em Inglês | LILACS, BDENF - Enfermagem | ID: lil-752576

RESUMO

OBJECTIVE: To understand the influence of play in the care process as perceived by children with cancer. METHOD: A descriptive, exploratory and qualitative study conducted in a children's cancer unit in Natal, Rio Grande do Norte, Brazil. Data were collected between October 2013 and January 2014 by means of photographic records and semi-structured interviews with eight children, and content analysis with emphasis on two categories: Auxiliary instruments during play; and The influence of play in the process of care. RESULTS: Recreational activities involve watching television, using computers, games and toys, drawing, the playroom and the clown, which provide fun, feelings of joy, distraction and interaction with other people. CONCLUSION: There are several activities at the hospital that are considered play-related and, for the children, they all benefit their care process. .


OBJETIVO: Comprender la influencia de lo lúdico en el proceso de atención, en la percepción de los niños con cáncer. MÉTODO: Estudio cualitativo, exploratorio descriptivo, realizado en un sector de oncología pediátrica en Natal, Rio Grande do Norte, Brasil. Los datos fueron recogidos entre los meses de octubre de 2013 y enero de 2014, a través de los registros fotográficos y entrevistas semiestructuradas con ocho hijos, y analizados según el análisis de contenido, destacando dos categorías de discusión: Los instrumentos auxiliares en la alegría; La influencia de lo lúdico en el proceso de atención. RESULTADOS: Las actividades recreativas implican ver televisión, usar computadoras, juegos y juguetes, la realización de dibujos y el payaso, que proporcionan diversión, sentimientos de alegría, distracción y la interacción con los demás. CONCLUSIÓN: Hay varias actividades, en el hospital, entendido como lúdico y que, para el niño, todos proporcionan beneficios para su proceso de atención. .


OBJETIVOS: Compreender a influência do lúdico para o processo de cuidar, na percepção de crianças com câncer. MÉTODO: Estudo qualitativo, exploratório descritivo, realizado em um setor de oncopediatria em Natal, Rio Grande do Norte, Brasil. Os dados foram coletados entre os meses de outubro de 2013 e janeiro de 2014, por meio de registros fotográficos e entrevista semiestruturada, com oito crianças, e analisados conforme a Análise de Conteúdo, destacando-se duas categorias de discussão: Os instrumentos auxiliares na ludicidade; e A influência do lúdico no processo de cuidar. RESULTADOS: As atividades lúdicas envolvem o assistir à televisão, o uso de computadores, os jogos e os brinquedos, a realização de desenhos, a brinquedoteca e o palhaço, os quais proporcionam diversão, sentimentos de alegria, distração e interação com outras pessoas. CONCLUSÃO: Existem diversas atividades, no hospital, entendidas como lúdicas, todas as quais, para a criança, proporcionam benefícios para o seu processo de cuidar. .


Assuntos
Humanos , Masculino , Feminino , Criança , Criança Hospitalizada/psicologia , Neoplasias/terapia , Ludoterapia , Neoplasias Cerebelares/psicologia , Neoplasias Cerebelares/terapia , Entrevistas como Assunto , Meduloblastoma/enfermagem , Meduloblastoma/psicologia , Meduloblastoma/terapia , Relações Enfermeiro-Paciente , Processo de Enfermagem , Neoplasias/enfermagem , Neoplasias/psicologia , Aceitação pelo Paciente de Cuidados de Saúde , Jogos e Brinquedos , Ludoterapia/instrumentação , Ludoterapia/métodos , Leucemia-Linfoma Linfoblástico de Células Precursoras/enfermagem , Leucemia-Linfoma Linfoblástico de Células Precursoras/psicologia , Leucemia-Linfoma Linfoblástico de Células Precursoras/terapia , Pesquisa Qualitativa , Jogos de Vídeo
20.
Neuropsychologia ; 69: 218-31, 2015 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25665770

RESUMO

The cerebellum is connected to extensive regions of the cerebrum, and cognitive deficits following cerebellar lesions may thus be related to disrupted cerebello-cerebral connectivity. Moreover, early cerebellar lesions could affect distal brain development, effectively inducing long-term changes in brain structure and cognitive function. Here, we characterize supratentorial brain structure and cognitive function in 20 adult patients treated for cerebellar tumours in childhood (mean age at surgery: 7.1 years) and 26 matched controls. Relative to controls, patients showed reduced cognitive function and increased grey matter density in bilateral cingulum, left orbitofrontal cortex and the left hippocampus. Within the patient group, increased grey matter density in these regions was associated with decreased performance on tests of processing speed and executive function. Further, diffusion tensor imaging revealed widespread alterations in white matter microstructure in patients. While current ventricle volume (an index of previous hydrocephalus severity it patients) was associated with grey matter density and white matter microstructure in patients, this could only partially account for the observed group differences in brain structure and cognitive function. In conclusion, our results show distal effects of cerebellar lesions on cerebral integrity and wiring, likely caused by a combination of neurodegenerative processes and perturbed neurodevelopment.


Assuntos
Encéfalo/patologia , Neoplasias Cerebelares/cirurgia , Cognição , Adolescente , Adulto , Encéfalo/crescimento & desenvolvimento , Neoplasias Cerebelares/patologia , Neoplasias Cerebelares/psicologia , Criança , Imagem de Tensor de Difusão , Função Executiva , Feminino , Substância Cinzenta/patologia , Humanos , Processamento de Imagem Assistida por Computador , Imageamento por Ressonância Magnética , Masculino , Testes Neuropsicológicos , Tamanho do Órgão , Adulto Jovem
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