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An academia-driven compassionate use program for patients with recurrent H3K27-altered diffuse midline glioma: a new way to access innovation when clinical trials are lacking. Ann Oncol 2023; 34:826-827. [PMID: 37423297 DOI: 10.1016/j.annonc.2023.06.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 06/29/2023] [Accepted: 06/29/2023] [Indexed: 07/11/2023] Open
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EZHIP is a specific diagnostic biomarker for posterior fossa ependymomas, group PFA and diffuse midline gliomas H3-WT with EZHIP overexpression. Acta Neuropathol Commun 2020; 8:183. [PMID: 33153494 PMCID: PMC7643397 DOI: 10.1186/s40478-020-01056-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 10/10/2020] [Indexed: 02/06/2023] Open
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Focal Areas of High Signal Intensity in Children with Neurofibromatosis Type 1: Expected Evolution on MRI. AJNR Am J Neuroradiol 2020; 41:1733-1739. [PMID: 32816766 DOI: 10.3174/ajnr.a6740] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 06/07/2020] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Focal areas of high signal intensity are T2WI/T2-FLAIR hyperintensities frequently found on MR imaging of children diagnosed with neurofibromatosis type 1, often thought to regress spontaneously during adolescence or puberty. Due to the risk of tumor in this population, some focal areas of high signal intensity may pose diagnostic problems. The objective of this study was to assess the characteristics and temporal evolution of focal areas of high signal intensity in children with neurofibromatosis type 1 using long-term follow-up with MR imaging. MATERIALS AND METHODS We retrospectively examined the MRIs of children diagnosed with neurofibromatosis type 1 using the National Institutes of Health Consensus Criteria (1987), with imaging follow-up of at least 4 years. We recorded the number, size, and surface area of focal areas of high signal intensity according to their anatomic distribution on T2WI/T2-FLAIR sequences. A generalized mixed model was used to analyze the evolution of focal areas of high signal intensity according to age, and separate analyses were performed for girls and boys. RESULTS Thirty-nine patients (ie, 285 MR images) with a median follow-up of 7 years were analyzed. Focal areas of high signal intensity were found in 100% of patients, preferentially in the infratentorial white matter (35% cerebellum, 30% brain stem) and in the capsular lenticular region (22%). They measured 15 mm in 95% of cases. They appeared from the age of 1 year; increased in number, size, and surface area to a peak at the age of 7; and then spontaneously regressed by 17 years of age, similarly in girls and boys. CONCLUSIONS Focal areas of high signal intensity are mostly small (<15 mm) abnormalities in the posterior fossa or capsular lenticular region. Our results suggest that the evolution of focal areas of high signal intensity is not related to puberty with a peak at the age of 7 years. Knowledge of the predictive evolution of focal areas of high signal intensity is essential in the follow-up of children with neurofibromatosis type 1.
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The pediatric supratentorial MYCN-amplified high-grade gliomas methylation class presents the same radiological, histopathological and molecular features as their pontine counterparts. Acta Neuropathol Commun 2020; 8:104. [PMID: 32646492 PMCID: PMC7346460 DOI: 10.1186/s40478-020-00974-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 06/19/2020] [Indexed: 01/14/2023] Open
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P14.99 Clinical and biologic features predictive of survival after relapse of childhood medulloblastoma. Neuro Oncol 2019. [DOI: 10.1093/neuonc/noz126.334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
BACKGROUND
Salvage therapy for recurrent medulloblastoma (MB) is not standardized. Factors associated with survival after recurrence have not been reported.
MATERIAL AND METHODS
Medical records were reviewed for 155 consecutive patients with newly diagnosed MB between 2007 and 2017, treated at Gustave Roussy and Hospital Necker. The following variables were collected for all patients: age at diagnosis, stage, histology (central review according to WHO 2016 classification), molecular subgrouping (DNA methylation), first-line treatment modalities, time to relapse, pattern of recurrence and current status.
RESULTS
A disease recurrence was observed in 47 patients (30%) at a median time of 15 months (range, 1–88 months). The 1-year survival after recurrence was 44% (CI 95%,29.6 to 58.8). The pattern of recurrence was local in 9 patients, metastatic in 21 and combined local and metastatic in 17 patients. The time to first recurrence, less or more than 12 months from diagnosis, was a predictor of post-recurrence overall survival (p < 0.0001) after adjustment for age, treatment, MYC amplification and molecular subgroups. Twenty-seven patients (57%) experiencing recurrent or progressive disease more than 12 months after diagnosis, had an estimated 1-year survival after recurrence of 100% (CI 95%, 100.0 to 100.0) vs 30% (CI 95%, 12.2 to 50.1) with an earlier recurrence. Early relapse was more frequent in children younger than 5 years of age at diagnosis (75% vs 37%, p =0.009), anaplastic/large cell MB (30% vs 3.7%, p=0.046) and Group 3 tumours (76.5% vs 20.8%, p=0.003). Other factors influencing post-relapse survival were metastatic disease and treatment modalities at diagnosis. Multivariable analyses will be presented.
CONCLUSION
The overall prognosis after relapse remains poor. Time to relapse is a significant prognostic factor for postrelapse survival and may help in the design of clinical trials evaluating new agents.
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An integrative radiological, histopathological and molecular analysis of pediatric pontine histone-wildtype glioma with MYCN amplification (HGG-MYCN). Acta Neuropathol Commun 2019; 7:87. [PMID: 31177990 PMCID: PMC6556947 DOI: 10.1186/s40478-019-0738-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 05/14/2019] [Indexed: 11/17/2022] Open
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Patients with High-Grade Gliomas and Café-au-Lait Macules: Is Neurofibromatosis Type 1 the Only Diagnosis? AJNR Am J Neuroradiol 2019; 40:E30-E31. [PMID: 31072978 DOI: 10.3174/ajnr.a6058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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New research directions in medulloblastoma. Neurochirurgie 2019; 67:87-89. [PMID: 30904166 DOI: 10.1016/j.neuchi.2019.01.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 12/27/2018] [Accepted: 01/06/2019] [Indexed: 01/12/2023]
Abstract
INTRODUCTION Medulloblastoma is the most common type of pediatric malignant brain tumor where the most important amount of clinical and radiological data has been accumulated in recent years. This has led to its sophistication in the management of these patients with a clear benefit for the patients. Long-term outcome and sequelae have been described and their causes well understood such as preventive measures which can now be implemented. MATERIAL AND METHODS This review paper does not attempt to make a systematic review of the literature in the field of research regarding medulloblastoma. It rather reflects more the opinion of a pediatric oncological team involved for a long time in this type of research. Therefore, a relevant literature review was carried out and selected by the senior author. RESULTS Medulloblastoma is no longer a single entity but a group of at least 4 different diseases with a specific oncogenesis. In addition, biomarkers for prognosis have emerged to complement the known clinico-radiological risk factors. If this biological classification has allowed to modulate the therapeutic strategies, it has not yet brought many new drugs (except for the Sonic Hedgehog inhibitors) in the armamentarium against medulloblastomas. Consequently, some high-risk tumors remain difficult to cure. Combining data on oncogenesis and prognostic biomarkers will allow to define risk groups more specifically. New targeted therapies that are more effective and less toxic are desperately needed. Alternatively, it is also justified to study preventive measures to decrease the sequelae of the tumor and its treatments. From the therapeutic point of view, we scarcely know the biological determinants of chemosensitivity and radiosensitivity, as well as those associated with metastases which are indeed invaluable for tailored therapeutic strategies. CONCLUSION If some genetic causes of medulloblastoma are known, the occurrence of the disease is largely unexplained for the others, justifying more research in this area. If genomics (and to a lesser extent epigenomics) of these neoplasms has been well studied, little is known on their proteomics and on the regulatory networks involved in the biological behavior of these tumor cells. New models are developed to test these aspects.
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CT and Multimodal MR Imaging Features of Embryonal Tumors with Multilayered Rosettes in Children. AJNR. AMERICAN JOURNAL OF NEURORADIOLOGY 2019; 40:732-736. [PMID: 30846437 DOI: 10.3174/ajnr.a6001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Accepted: 01/28/2019] [Indexed: 12/28/2022]
Abstract
BACKGROUND AND PURPOSE Embryonal tumors with multilayered rosettes, C19MC-altered, are brain tumors occurring in young children, which were clearly defined in the 2016 World Health Organization classification of central nervous system neoplasms. Our objective was to describe the multimodal imaging characteristics of this new entity. MATERIALS AND METHODS We performed a retrospective monocentric review of embryonal brain tumors and looked for embryonal tumors with multilayered rosettes with confirmed C19MC alteration. We gathered morphologic imaging data, as well as DWI and PWI data (using arterial spin-labeling and DSC). RESULTS We included 16 patients with a median age of 2 years 8 months. Tumors were both supratentorial (56%, 9/16) and infratentorial (44%, 7/16). Tumors were large (median diameter, 59 mm; interquartile range, 48-71 mm), with absent (75%, 12/16) or minimal (25%, 4/16) peritumoral edema. Enhancement was absent (20%, 3/15) or weak (73%, 11/15), whereas intratumoral macrovessels were frequently seen (94%, 15/16) and calcifications were present in 67% (10/15). Diffusion was always restricted, with a minimal ADC of 520 mm2/s (interquartile range, 495-540 mm2/s). Cerebral blood flow using arterial spin-labeling was low, with a maximal CBF of 43 mL/min/100 g (interquartile range, 33-55 mL/min/100 g 5). When available (3 patients), relative cerebral blood volume using DSC was high (range, 3.5-5.8). CONCLUSIONS Embryonal tumors with multilayered rosettes, C19MC-altered, have characteristic imaging features that could help in the diagnosis of this rare tumor in young children.
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Evaluation of the Implementation of the Response Assessment in Neuro-Oncology Criteria in the HERBY Trial of Pediatric Patients with Newly Diagnosed High-Grade Gliomas. AJNR Am J Neuroradiol 2019; 40:568-575. [PMID: 30819765 DOI: 10.3174/ajnr.a5982] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Accepted: 12/31/2018] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE HERBY was a Phase II multicenter trial setup to establish the efficacy and safety of adding bevacizumab to radiation therapy and temozolomide in pediatric patients with newly diagnosed non-brain stem high-grade gliomas. This study evaluates the implementation of the radiologic aspects of HERBY. MATERIALS AND METHODS We analyzed multimodal imaging compliance rates and scan quality for participating sites, adjudication rates and reading times for the central review process, the influence of different Response Assessment in Neuro-Oncology criteria in the final response, the incidence of pseudoprogression, and the benefit of incorporating multimodal imaging into the decision process. RESULTS Multimodal imaging compliance rates were the following: diffusion, 82%; perfusion, 60%; and spectroscopy, 48%. Neuroradiologists' responses differed for 50% of scans, requiring adjudication, with a total average reading time per patient of approximately 3 hours. Pseudoprogression occurred in 10/116 (9%) cases, 8 in the radiation therapy/temozolomide arm and 2 in the bevacizumab arm (P < .01). Increased target enhancing lesion diameter was a reason for progression in 8/86 cases (9.3%) but never the only radiologic or clinical reason. Event-free survival was predicted earlier in 5/86 (5.8%) patients by multimodal imaging (diffusion, n = 4; perfusion, n = 1). CONCLUSIONS The addition of multimodal imaging to the response criteria modified the assessment in a small number of cases, determining progression earlier than structural imaging alone. Increased target lesion diameter, accounting for a large proportion of reading time, was never the only reason to designate disease progression.
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Neuropsychological consequences of childhood medulloblastoma and possible interventions: A review. Neurochirurgie 2018; 67:90-98. [PMID: 29716738 DOI: 10.1016/j.neuchi.2018.03.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 02/11/2018] [Accepted: 03/03/2018] [Indexed: 01/21/2023]
Abstract
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.
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Response Assessment in Pediatric Neuro-Oncology: Implementation and Expansion of the RANO Criteria in a Randomized Phase II Trial of Pediatric Patients with Newly Diagnosed High-Grade Gliomas. AJNR Am J Neuroradiol 2016; 37:1581-7. [PMID: 27127006 DOI: 10.3174/ajnr.a4782] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 02/14/2016] [Indexed: 11/07/2022]
Abstract
Determination of tumor response to treatment in neuro-oncology is challenging, particularly when antiangiogenic agents are considered. Nontumoral factors (eg, blood-brain barrier disruption, edema, and necrosis) can alter contrast enhancement independent of true tumor response/progression. Furthermore, gliomas are often infiltrative, with nonenhancing components. In adults, the Response Assessment in Neuro-Oncology (RANO) criteria attempted to address these issues. No such guidelines exist yet for children. The ongoing randomized phase II trial, A Study of Avastin (bevacizumab) in Combination With Temolozomide (TMZ) and Radiotherapy in Paediatric and Adolescent Patients With High-Grade Glioma (HERBY), will establish the efficacy and safety of the antiangiogenic agent bevacizumab for the first-line treatment of newly diagnosed high-grade glioma in children (n = 121 patients, enrollment complete). The primary end point is event-free survival (tumor progression/recurrence by central review, second primary malignancy, or death). Determination of progression or response is based on predefined clinical and radiographic criteria, modeled on the RANO criteria and supported by expert pseudoprogression review and the use of standardized imaging protocols. The HERBY trial will also compare conventional MR imaging (T1-weighted and T2/fluid-attenuated inversion recovery sequences) with conventional MR imaging plus diffusion/perfusion imaging for response assessment. It is anticipated that HERBY will provide new insights into antiangiogenic-treated pediatric brain tumors. HERBY will also investigate the practicality of obtaining adequate quality diffusion/perfusion scans in a trial setting, and the feasibility of implementing standard imaging protocols across multiple sites. To date, 61/73 (83.6%) patients with available data have completed diffusion-weighted imaging (uptake of other nonconventional techniques has been limited). Harmonization of imaging protocols and techniques may improve the robustness of pediatric neuro-oncology studies and aid future trial comparability.
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Constitutional mismatch repair deficiency syndrome: clinical description in a French cohort. J Med Genet 2015; 52:770-8. [DOI: 10.1136/jmedgenet-2015-103299] [Citation(s) in RCA: 89] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Accepted: 08/01/2015] [Indexed: 12/20/2022]
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Assessment of executive functioning in children and young adults treated for frontal lobe tumours using ecologically valid tests. Neuropsychol Rehabil 2015; 26:558-83. [DOI: 10.1080/09602011.2015.1048253] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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The Herby Study: a Phase 2 Open-Label, Randomized, Multicenter Study of Bevacizumab-Based Therapy in Pediatric Patients with Newly Diagnosed High-Grade Glioma. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu330.27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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EPENDYMOMA. Neuro Oncol 2014; 16:i17-i25. [PMCID: PMC4046284 DOI: 10.1093/neuonc/nou068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/07/2023] Open
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RADIOLOGY. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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RARE TUMOURS. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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HIGH GRADE GLIOMAS AND DIPG. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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NEUROPSYCHOLOGY. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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MEDULLOBLASTOMA. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Targeting H3.3 mutated pediatric high grade gliomas – A high throughput screening approach to identify novel therapeutic agents. KLINISCHE PADIATRIE 2013. [DOI: 10.1055/s-0033-1353460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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PEDIATRICS LABORATORY RESEARCH. Neuro Oncol 2013. [DOI: 10.1093/neuonc/not186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Abstract
CONTEXT Craniopharyngioma is a brain tumor whose high local recurrence rate has for a long time led to a preference for extensive surgery. Limited surgery minimizing hypothalamic damage may decrease the severe obesity rate at the expense of the need for radiotherapy to complete the treatment. OBJECTIVE We compared weight gain and local recurrence rates after extensive resection surgery (ERS) and hypothalamus-sparing surgery (HSS). DESIGN Our observational study compared a historical cohort managed with ERS between 1985 and 2002 to a prospective cohort managed with HSS between 2002 and 2010. SETTING The patients were treated in a pediatric teaching hospital in Paris, France. PATIENTS Thirty-seven boys and 23 girls were managed with ERS (median age, 8 years); 38 boys and 27 girls were managed with HSS (median age, 9.3 years). MAIN OUTCOME MEASURES Data were collected before and 6 months to 7 years after surgery. Body mass index (BMI) Z-score was used to assess obesity and the number of surgical procedures to assess local recurrence rate. RESULTS Mean BMI Z-score before surgery was comparable in the 2 cohorts (0.756 after ERS vs 0.747 after HSS; P = .528). At any time after surgery, mean BMI Z-score was significantly lower after HSS (eg, 1.889 SD vs 2.915 SD, P = .004 at 1 year). At last follow-up, the HSS cohort had a significantly lower prevalence of severe obesity (28% vs 54%, P < .05) and higher prevalence of normal BMI (38% vs 17%, P < .01). Mean number of surgical procedures was not significantly different in the 2 cohorts. CONCLUSIONS Hypothalamus-sparing surgery decreases the occurrence of severe obesity without increasing the local recurrence rate.
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Abstracts. Neuro Oncol 2013. [DOI: 10.1093/neuonc/not047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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347 Efficacy of Dasatinib in Targeting Diffuse Intrinsic Pontine Glioma (DIPG) Specific Pathway Activation in Vitro. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)72145-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Neurocognitive outcome and Academic achievement in adult survivors of childhood medulloblastoma. Ann Phys Rehabil Med 2012. [DOI: 10.1016/j.rehab.2012.07.485] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Devenir neurocognitif et social de 51 jeunes adultes traités pour un médulloblastome dans l’enfance. Ann Phys Rehabil Med 2012. [DOI: 10.1016/j.rehab.2012.07.478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Abstracts of the 10th Congress of the European Association of NeuroOncology. Marseille, France. September 6-9, 2012. Neuro Oncol 2012; 14 Suppl 3:iii1-109. [PMID: 22977921 DOI: 10.1093/neuonc/nos183] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Quality-of-life, mood and executive functioning after childhood craniopharyngioma treated with surgery and proton beam therapy. Brain Inj 2012; 26:270-81. [PMID: 22372414 DOI: 10.3109/02699052.2011.648709] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PRIMARY OBJECTIVE Childhood craniopharyngioma, a benign tumour with a good survival rate, is associated with important neurocognitive and psychological morbidity, reducing quality-of-life (QoL). METHOD This retrospective study analysed QoL, mood disorders, everyday executive functioning and disease's impact on family life in 29 patients (mean age at diagnosis 7 years 10 months (SD = 4.1); mean follow-up period 6 years 2 months (SD = 4.5)) treated for childhood craniopharyngioma by surgery combined with radiotherapy using proton beam. Assessment included a semi-structured interview and standardized scales evaluating self-report of QoL (Kidscreen 52) and depression (MDI-C) and proxy-reports of QoL (Kidscreen 52), executive functioning (BRIEF) and disease's impact (Hoare and Russel Questionnaire). RESULTS Twenty-three families answered the questionnaires completely. Overall QoL self-report was within the normal range. QoL proxy-report was lower than self-report. Eleven patients reported depression; 24-38% had dysexecutive symptoms. A majority of families felt 'very concerned' by the disease. Depression and low parental educational level were associated with lower QoL and higher levels of executive dysfunction. CONCLUSION Given the high morbidity of childhood craniopharyngioma, screening for psychosocial outcome, cognitive functioning, including executive functions, mood and QoL should be systematic and specific interventions should be developed and implemented.
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199 INVITED Are Adult and Paediatric High Grade Gliomas the Same – Insight From Biology and Molecular Pathology. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)70414-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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La biologie moléculaire des gliomes infiltrants du tronc de l’enfant : vers une thérapeutique ciblée ? Neurochirurgie 2011. [DOI: 10.1016/j.neuchi.2011.09.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Seed loading effects on the mean crystal size of acetylsalicylic acid in a continuous-flow crystallization device. CRYSTAL RESEARCH AND TECHNOLOGY 2011. [DOI: 10.1002/crat.201000634] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Kontinuierliches Wachstum von API Impf- zu Produktkristallen in einem Rohrkristallisator. CHEM-ING-TECH 2010. [DOI: 10.1002/cite.201050091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Purification and Characterization of Conjugated Bile Salt Hydrolase from Bifidobacterium longum BB536. Appl Environ Microbiol 2010; 61:2577-82. [PMID: 16535071 PMCID: PMC1388489 DOI: 10.1128/aem.61.7.2577-2582.1995] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Bifidobacterium species deconjugate taurocholic, taurodeoxycholic, taurochenodeoxycholic, glycocholic, glycodeoxycholic, and glycochenodeoxycholic acids. The enzyme level increases in the growth phase. No increase in activity is observed for the cytoplasmic enzyme after addition of conjugated bile acids to a stationary-phase culture. Conjugated bile salt hydrolase (BSH) was purified from Bifidobacterium longum BB536. Its apparent molecular mass in denaturing polyacrylamide gel electrophoresis was ca. 40,000 Da. The intact enzyme had a relative molecular weight of ca. 250,000 as determined by gel filtration chromatography, suggesting that the native BSH of B. longum is probably a hexamer. The purified enzyme is active towards both glycine and taurine conjugates of cholate, deoxycholate, and chenodeoxycholate. The pH optimum is in the range of 5.5 to 6.5. A loss of BSH activity is observed after incubation at temperatures higher than 42(deg)C; at 60(deg)C, 50% of the BSH activity is lost. The importance of free sulfhydryl groups at the enzyme active center is suggested. For B. longum BB536, no significant difference in the initial rate of deconjugation and enzymatic efficiency appears between bile salts. The enzymatic efficiency is higher for B. longum BB536 than for other genera. In this paper, a new method which permits a display of BSH activity directly on polyacrylamide gels is described; this method confirms the molecular weight obtained for B. longum BB536 BSH.
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CL091 - Rôle de la protonthérapie dans les tumeurs pédiatriques : expérience d’Orsay. Arch Pediatr 2010. [DOI: 10.1016/s0929-693x(10)70313-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Premature deaths and severe morbidity in 192 long-term survivors of pediatric optic pathway tumors (OPT): A 50-year study. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.9555] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Use of integrated genomics to identify three high-grade glioma subtypes with distinct genetic profiles, pathway signatures, and clinicopathologic features. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e12500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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La protonthérapie en radiothérapie pédiatrique. Cancer Radiother 2009; 13:550-5. [DOI: 10.1016/j.canrad.2009.07.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2009] [Revised: 06/29/2009] [Accepted: 07/01/2009] [Indexed: 11/29/2022]
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