scholarly journals Childhood Malignant Brain Tumors: Balancing the Bench and Bedside

Cancers ◽  
2021 ◽  
Vol 13 (23) ◽  
pp. 6099
Author(s):  
Colin Thorbinson ◽  
John-Paul Kilday
Keyword(s):  
Brain Tumors ◽  
Survival Rates ◽  
Rapid Evolution ◽  
Developed Countries ◽  
Pediatric Brain Tumors ◽  
Neuro Imaging ◽  
Pediatric Brain ◽  
Translational Therapy

Brain tumors are the leading cause of childhood cancer deaths in developed countries. They also represent the most common solid tumor in this age group, accounting for approximately one-quarter of all pediatric cancers. Developments in neuro-imaging, neurosurgical techniques, adjuvant therapy and supportive care have improved survival rates for certain tumors, allowing a future focus on optimizing cure, whilst minimizing long-term adverse effects. Recent times have witnessed a rapid evolution in the molecular characterization of several of the common pediatric brain tumors, allowing unique clinical and biological patient subgroups to be identified. However, a resulting paradigm shift in both translational therapy and subsequent survival for many of these tumors remains elusive, while recurrence remains a great clinical challenge. This review will provide an insight into the key molecular developments and global co-operative trial results for the most common malignant pediatric brain tumors (medulloblastoma, high-grade gliomas and ependymoma), highlighting potential future directions for management, including novel therapeutic options, and critical challenges that remain unsolved.

scholarly journals PCM-16MOLECULAR CHARACTERIZATION OF ORTHOTOPIC PATIENT-DERIVED XENOGRAFT MODELS OF PEDIATRIC BRAIN TUMORS

2016 ◽  
Vol 18 (suppl 3) ◽  
pp. iii142.3-iii142
Author(s):  
Sebastian Brabetz ◽  
Susanne N. Groebner ◽  
Huriye Seker-Cin ◽  
Norman L. Mack ◽  
Volker Hovestadt ◽  
...  
Keyword(s):  
Brain Tumors ◽  
Pediatric Brain Tumors ◽  
Patient Derived Xenograft ◽  
Xenograft Models ◽  
Pediatric Brain

CHARACTERIZATION OF CANCEROUS STEM CELLS IN HUMAN PEDIATRIC BRAIN TUMORS.

2004 ◽  
Vol 52 ◽  
pp. S172
Author(s):  
H. D. Hemmati ◽  
I. Nakano ◽  
M. Masterman-Smith ◽  
S. R. Bababeygy ◽  
B. Rafii ◽  
...  
Keyword(s):  
Stem Cells ◽  
Brain Tumors ◽  
Pediatric Brain Tumors ◽  
Pediatric Brain

scholarly journals Pediatric Brain tumors in Southeast Nigeria; An 8-year prospective longitudinal cohort study

2019 ◽  
Author(s):  
Enoch Uche ◽  
Nkechi Judith Uche ◽  
Obinna V Ajuzieogu ◽  
Dubem Amuta ◽  
ephraim Onyia ◽  
...  
Keyword(s):  
Brain Tumors ◽  
Survival Rates ◽  
Pediatric Brain Tumors ◽  
Common Symptom ◽  
Chi Square ◽  
Study Results ◽  
Chi Square Test ◽  
Poor Outcomes ◽  
Prospective Longitudinal ◽  
Pediatric Brain

Abstract Background: Pediatric brain tumors (PBT’s) from previous studies are associated with poor outcomes in our subregion. Methods. An 8 -year single center prospective study. All cases investigated with neuroimaging and treated were enrolled. Data was analyzed with SPSS (Inc) Chicago IL, USA version 23. Chi Square test, One-way Anova and confidence limits were used to evaluate associations using the 95% level of significance. Patients were followed up for a range of 1 to 7.5 years with a mean of 4.9 ±1.3years. Ethical approval was obtained for our study. Results: 95 patients were enrolled, 84 satisfied the study criteria. There were 45 males and 39 females, M: F=1.1. The mean age was 9.9±2.7 years 95%CI with a range of 9 months to 16 years. The most common symptom was headache for supratentorial lesions (73%) and gait disturbance (80.2%) for infratentorial lesions. More tumors were supratentorial in location (45(54.2%), while 33(37.1%) were infratentorial. Craniopharyngiomas (n=19), medulloblastomas(n=17) and astrocytomas (n=11) were the most common tumors. Hemoglobin genotype(AA and AS) had some influence on tumor phenotype, Odds ratio 8.9 and 3.3 for medulloblastoma and craniopharyngioma. 69 cases were microsurgically resected while 14 patients were treated with radiotherapy alone. The 30-day mortality for operated cases is 7.9±1.3%. Overall 1-year and 5-year survival was 67.9% and 53.6 % respectively. Survival rates varied among treatment groups (X2=8.9, P=0.017). Conclusion: Survival profile in this series suggests some improvement in comparison to previous studies from our region.

scholarly journals PM-09 * ESTABLISHMENT AND MOLECULAR CHARACTERIZATION OF PATIENT-DERIVED XENOGRAFT MODELS OF PEDIATRIC BRAIN TUMORS

2015 ◽  
Vol 17 (suppl 3) ◽  
pp. iii33-iii33
Author(s):  
S. Brabetz ◽  
H. Seker-Cin ◽  
S. N. Grobner ◽  
V. Hovestadt ◽  
D. T. W. Jones ◽  
...  
Keyword(s):  
Brain Tumors ◽  
Molecular Characterization ◽  
Pediatric Brain Tumors ◽  
Patient Derived Xenograft ◽  
Xenograft Models ◽  
Pediatric Brain

531 CHARACTERIZATION OF CANCEROUS STEM CELLS IN HUMAN PEDIATRIC BRAIN TUMORS.

2004 ◽  
Vol 52 (Suppl 1) ◽  
pp. S172.2-S172
Author(s):  
H. D. Hemmati ◽  
I. Nakano ◽  
M. Masterman-Smith ◽  
S. R. Bababeygy ◽  
B. Rafii ◽  
...  
Keyword(s):  
Stem Cells ◽  
Brain Tumors ◽  
Pediatric Brain Tumors ◽  
Pediatric Brain

scholarly journals Incidence, risk factors, and longitudinal outcome of seizures in long-term survivors of pediatric brain tumors

Epilepsia ◽  
2015 ◽  
Vol 56 (10) ◽  
pp. 1599-1604 ◽  
Author(s):  
Nicole J. Ullrich ◽  
Scott L. Pomeroy ◽  
Kush Kapur ◽  
Peter E. Manley ◽  
Liliana C. Goumnerova ◽  
...  
Keyword(s):  
Risk Factors ◽  
Brain Tumors ◽  
Pediatric Brain Tumors ◽  
Longitudinal Outcome ◽  
Incidence Risk ◽  
Long Term Survivors ◽  
Pediatric Brain

scholarly journals Epilepsy surgery related to pediatric brain tumors: Miami Children’s Hospital experience

2015 ◽  
Vol 16 (6) ◽  
pp. 675-680 ◽  
Author(s):  
Aria Fallah ◽  
Alexander G. Weil ◽  
Samir Sur ◽  
Ian Miller ◽  
Prasanna Jayakar ◽  
...  
Keyword(s):  
Standard Deviation ◽  
Brain Tumors ◽  
Epilepsy Surgery ◽  
Pediatric Patients ◽  
Pediatric Brain Tumors ◽  
Seizure Freedom ◽  
Seizure Recurrence ◽  
Children's Hospital ◽  
Pediatric Brain

OBJECT Pediatric brain tumors may be associated with medically intractable epilepsy for which surgery is indicated. The authors sought to evaluate the efficacy of epilepsy surgery for seizure control in pediatric patients with brain tumors. METHODS The authors performed a retrospective review of consecutive patients undergoing resective epilepsy surgery related to pediatric brain tumors at Miami Children’s Hospital between June 1986 and June 2014. Time-to-event analysis for seizure recurrence was performed; an “event” was defined as any seizures that occurred following resective epilepsy surgery, not including seizures and auras in the 1st postoperative week. The authors analyzed several preoperative variables to determine their suitability to predict seizure recurrence following surgery. RESULTS Eighty-four patients (47 males) with a mean age (± standard deviation) of 8.7 ± 5.5 years (range 0.5–21.6 years) were included. The study included 39 (46%) patients with gliomas, 20 (24%) with dysembryoplastic neuroepithelial tumors (DNETs), 14 (17%) with gangliogliomas, and 11 (13%) with other etiologies. Among the patients with gliomas, 18 were classified with low-grade glioma, 5 had oligodendroglioma, 6 had uncategorized astrocytoma, 3 had pilocytic astrocytoma, 3 had pleomorphic xanthoastrocytoma, 3 had glioblastoma, and 1 had gliomatosis cerebri. Seventy-nine (94.0%) resections were guided by intraoperative electrocorticography (ECoG). The mean time (± standard deviation) to seizure recurrence was 81.8 ± 6.3 months. Engel Class I outcome was achieved in 66 (78%) and 63 (75%) patients at 1 and 2 years’ follow-up, respectively. Patients with ganglioglioma demonstrated the highest probability of long-term seizure freedom, followed by patients with DNETs and gliomas. In univariate analyses, temporal location (HR 1.75, 95% CI 0.26–1.27, p = 0.171) and completeness of resection (HR 1.69, 95% CI 0.77–3.74, p = 0.191) demonstrated a trend toward a longer duration of seizure freedom. CONCLUSIONS ECoG-guided epilepsy surgery for pediatric patients with brain tumors is highly effective. Tumors located in the temporal lobe and those in which a complete ECoG-guided resection is performed may result in a greater likelihood of long-term seizure freedom.

Tumor location and neurocognitive impairment in adult survivors of pediatric brain tumors: A report from the St. Jude Lifetime Cohort (SJLIFE).

2012 ◽  
Vol 30 (15_suppl) ◽  
pp. 9531-9531
Author(s):  
Tara M. Brinkman ◽  
Wei Liu ◽  
Gregory T. Armstrong ◽  
Amar J. Gajjar ◽  
Thomas E. Merchant ◽  
...  
Keyword(s):  
Brain Tumors ◽  
Processing Speed ◽  
Adult Survivors ◽  
Pediatric Brain Tumors ◽  
Tumor Location ◽  
Age At Diagnosis ◽  
Neurocognitive Functions ◽  
Pediatric Brain

9531 Background: Follow-up guidelines identify supratentorial tumor location as a risk factor for poor neurocognitive outcomes during childhood; yet few studies have systematically compared long-term cognitive outcomes between adult survivors of childhood infratentorial and supratentorial brain tumors. Methods: Neurocognitive functions were evaluated in 130 adult survivors of pediatric brain tumors (58 supratentorial and 72 infratentorial, mean [SD] current age = 27.4 years [5.2], age at diagnosis = 8.6 years [4.6], and time since diagnosis = 18.8 years [4.8]) participating in the SJLIFE long-term follow-up protocol. Age-adjusted standard scores for measures of intelligence, attention, memory, processing speed, and executive functioning were calculated, with clinical impairment defined as scores <10th percentile. Odds ratios (OR) and 95% confidence intervals (CI) were calculated using multivariable logistic regression models to examine associations between neurocognitive functions and tumor location. Results: As a group, survivors performed below average across multiple neurocognitive domains, including full scale IQ (mean=88.1; SD=18.2), with 34% demonstrating impaired IQ. Survivors of infratentorial tumors were more likely to be impaired on measures of focused attention (OR=2.19, 95% CI=1.03-4.65) and fine motor dexterity (OR=2.62, 95% CI=1.21-5.66) compared to survivors of supratentorial tumors. After adjusting for sex, age at diagnosis, shunt placement and cranial radiation (yes/no), infratentorial tumor location was only associated with reduced performance on a task of visual abstract reasoning (OR=3.76, 95% CI=1.40-10.1). Cranial radiation therapy was independently associated with impaired short-term memory (OR=15.6, 95% CI=1.64-147.8) and processing speed (OR=3.86, 95% CI=1.15-13.0). Conclusions: Tumor location was not associated with neurocognitive impairment after adjusting for treatment exposures. To further delineate potential differences associated with tumor location, future studies will examine factors including radiation dose/volume, extent of surgical resection, and medical complications.

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