Letter to the Editor. Pediatric thalamic tumors

Steinbok, Paul

doi:10.3171/2018.5.peds18282

Cited by 1 publication

(1 citation statement)

References 8 publications

(11 reference statements)

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“…With EOR dichotomized as “> 95%” vs “< 95%,” the difference in 5-year OS was found to be statistically significant (79.8% vs 52%), although this did not hold on multivariate analysis, with only tumor grade (“low” vs “high”) remaining a predictive factor for survival. With no surgical mortality and permanent neurological worsening reported in 7/42 patients undergoing surgery, the authors are still cautious about advising to strive for GTR, with maximal safe resection as the reasonable goal [ 38 ].…”

Section: Discussionmentioning

confidence: 99%

Infiltrative gliomas of the thalamus in children: the role of surgery in the era of H3 K27M mutant midline gliomas

et al. 2020

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Background The role of surgery in the management of pediatric non-pilocytic infiltrative thalamic gliomas needs to be revisited specifically with regard to molecularly defined subtypes. Methods A retrospective review of a consecutive series of children operated on a thalamic tumor between 1992 and May 2018 was performed. Neuroimaging data were reviewed for localization and extent of resection; pathology was re-reviewed according to the current WHO classification, including assessment of histone H3 K27 mutational status. Results Forty-nine patients with a thalamic tumor aged < 18 years at diagnosis were identified. Twenty-five patients (51%) had a non-pilocytic infiltrative glioma, of which the H3 K27M status was available in 22. Fourteen patients were diagnosed as diffuse midline glioma (DMG) H3 K27M mutant. There was no statistically significant difference in survival between patients harboring the H3 K27M mutation and wildtype. Resection (“any resection > 50%” vs “biopsy”) and histological tumor grade (“°II” vs “°III+°IV”) were statistically significant predictors of survival (univariate: p = 0.044 and p = 0.013, respectively). These results remained significant on multivariate analysis (HR 0.371/p = 0.048, HR 9.433/p = 0.035). Conclusion We advocate to still consider an attempt at maximal safe resection in the multidisciplinary treatment of unilateral thalamic non-pilocytic gliomas irrespective of their H3 K27-mutational status.

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Section: Discussionmentioning

confidence: 99%