ArticleThe Lancet. Oncology2016
Prognostic value of medulloblastoma extent of resection after accounting for molecular subgroup: a retrospective integrated clinical and molecular analysis.
Article in The Lancet. Oncology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 205 papers, 8 of them syntheses that pooled it.
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Who cites it
205 citing papers in PubMed, 8 syntheses or guidelines pooled it, 365 citations in OpenAlex.
- Sodium fluorescein in pediatric neurosurgery: a systematic review with technical considerations and future perspectives.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2023Pooled it
- Questions and answers in the management of children with medulloblastoma over the time. How did we get here? A systematic review.Frontiers in oncology · 2023Pooled it
- Intraoperative MRI versus intraoperative ultrasound in pediatric brain tumor surgery: is expensive better than cheap? A review of the literature.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2022Pooled it
- Risk Factors for Survival in Patients With Medulloblastoma: A Systematic Review and Meta-Analysis.Frontiers in oncology · 2022Pooled it
- How are missing data in covariates handled in observational time-to-event studies in oncology? A systematic review.BMC medical research methodology · 2020Pooled it
- Primary Brain Tumor Research Productivity in Southeast Asia and Its Association With Socioeconomic Determinants and Burden of Disease.Frontiers in oncology · 2020Pooled it
- The clinical importance of medulloblastoma extent of resection: a systematic review.Journal of neuro-oncology · 2018Pooled it
- Medulloblastoma in children and adolescents: a systematic review of contemporary phase I and II clinical trials and biology update.Cancer medicine · 2017Pooled it
- A CBF decrease in the left supplementary motor areas: New insight into postoperative pediatric cerebellar mutism syndrome using arterial spin labeling perfusion MRI.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2021Trial
- Outcomes by Clinical and Molecular Features in Children With Medulloblastoma Treated With Risk-Adapted Therapy: Results of an International Phase III Trial (SJMB03).Journal of clinical oncology : official journal of the American Society of Clinical Oncology · 2021Trial
- Predicting late-onset hydrocephalus in pediatric medulloblastoma: from static anatomy to dynamic biological assessment.Neurosurgical review · 2026Article
- Molecular and clinical features of a Japanese medulloblastoma cohort: Subgroup-specific prognostic stratification using economical/accessible diagnostic methods.Brain pathology (Zurich, Switzerland) · 2026Article
- Surgical resection in medulloblastoma: a crossroads in the molecular era.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2026Review
- The emerging role of intraoperative nanopore sequencing on the neurosurgical strategy in paediatric embryonal brain tumours.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2026Review
- Digital Twins as the Implementation Layer of Precision Medicine in Pediatric Neurosurgery.Journal of Korean Neurosurgical Society · 2026Review
- Developing a core outcome set for the NeuroPoint Alliance Quality Outcomes Database Pediatric Tumor Surgery Registry: a modified Delphi study.Journal of neuro-oncology · 2026Article
- Neurosurgical Application of Artificial Intelligence in Pediatric Neuro-Oncology.Journal of Korean Neurosurgical Society · 2026Article
- Article
- Integrated Molecular Profiling Improves Subtype Classification and Reveals Inherited Susceptibility in Medulloblastoma: Insights From a Real-World Cohort.Cancer medicine · 2026Article
- Significance of LEF1, ROR2, Cyclin D1, and DNA Methylation Profiling in the Molecular Classification and Prognosis Prediction of Pediatric Medulloblastoma.Balkan medical journal · 2026Article
145 more citing papers are in PubMed but not listed here.
Corrections and comments
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- Erratum issued
Authors and funding
107 authors at 20 institutions in 19 countries.
Funding
Abstract
backgroundPatients with incomplete surgical resection of medulloblastoma are controversially regarded as having a marker of high-risk disease, which leads to patients undergoing aggressive surgical resections, so-called second-look surgeries, and intensified chemoradiotherapy. All previous studies assessing the clinical importance of extent of resection have not accounted for molecular subgroup. We analysed the prognostic value of extent of resection in a subgroup-specific manner.
methodsWe retrospectively identified patients who had a histological diagnosis of medulloblastoma and complete data about extent of resection and survival from centres participating in the Medulloblastoma Advanced Genomics International Consortium. We collected from resections done between April, 1997, and February, 2013, at 35 international institutions. We established medulloblastoma subgroup affiliation by gene expression profiling on frozen or formalin-fixed paraffin-embedded tissues. We classified extent of resection on the basis of postoperative imaging as gross total resection (no residual tumour), near-total resection (<1·5 cm(2) tumour remaining), or sub-total resection (≥1·5 cm(2) tumour remaining). We did multivariable analyses of overall survival and progression-free survival using the variables molecular subgroup (WNT, SHH, group 4, and group 3), age (<3 vs ≥3 years old), metastatic status (metastases vs no metastases), geographical location of therapy (North America/Australia vs rest of the world), receipt of chemotherapy (yes vs no) and receipt of craniospinal irradiation (<30 Gy or >30 Gy vs no craniospinal irradiation). The primary analysis outcome was the effect of extent of resection by molecular subgroup and the effects of other clinical variables on overall and progression-free survival.
findingsWe included 787 patients with medulloblastoma (86 with WNT tumours, 242 with SHH tumours, 163 with group 3 tumours, and 296 with group 4 tumours) in our multivariable Cox models of progression-free and overall survival. We found that the prognostic benefit of increased extent of resection for patients with medulloblastoma is attenuated after molecular subgroup affiliation is taken into account. We identified a progression-free survival benefit for gross total resection over sub-total resection (hazard ratio [HR] 1·45, 95% CI 1·07-1·96, p=0·16) but no overall survival benefit (HR 1·23, 0·87-1·72, p=0·24). We saw no progression-free survival or overall survival benefit for gross total resection compared with near-total resection (HR 1·05, 0·71-1·53, p=0·8158 for progression-free survival and HR 1·14, 0·75-1·72, p=0·55 for overall survival). No significant survival benefit existed for greater extent of resection for patients with WNT, SHH, or group 3 tumours (HR 1·03, 0·67-1·58, p=0·89 for sub-total resection vs gross total resection). For patients with group 4 tumours, gross total resection conferred a benefit to progression-free survival compared with sub-total resection (HR 1·97, 1·22-3·17, p=0·0056), especially for those with metastatic disease (HR 2·22, 1·00-4·93, p=0·050). However, gross total resection had no effect on overall survival compared with sub-total resection in patients with group 4 tumours (HR 1·67, 0·93-2·99, p=0·084).
interpretationThe prognostic benefit of increased extent of resection for patients with medulloblastoma is attenuated after molecular subgroup affiliation is taken into account. Although maximum safe surgical resection should remain the standard of care, surgical removal of small residual portions of medulloblastoma is not recommended when the likelihood of neurological morbidity is high because there is no definitive benefit to gross total resection compared with near-total resection.
fundingCanadian Cancer Society Research Institute, Terry Fox Research Institute, Canadian Institutes of Health Research, National Institutes of Health, Pediatric Brain Tumor Foundation, and the Garron Family Chair in Childhood Cancer Research.
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