Abstract
Background
Childhood thalamopeduncular gliomas arise at the interface of the thalamus and cerebral peduncle. The optimal treatment is total resection but not at the cost of neurological function. We present long-term clinical and oncological outcomes of maximal safe resection.
Methods
Retrospective review of prospectively collected data: demography, symptomatology, imaging, extent of resection, surgical complications, histology, functional and oncological outcome.
Results
During 16-year period (2005–2020), 21 patients were treated at our institution. These were 13 girls and 8 boys (mean age 7.6 years). Presentation included progressive hemiparesis in 9 patients, raised intracranial pressure in 9 patients and cerebellar symptomatology in 3 patients. The tumour was confined to the thalamus in 6 cases. Extent of resection was judged on postoperative imaging as total (6), near-total (6) and less extensive (9). Surgical complications included progression of baseline neurological status in 6 patients, and 5 of these gradually improved to preoperative status. All tumours were classified as low-grade gliomas. Disease progression was observed in 9 patients (median progression-free survival 7.3 years). At last follow-up (median 6.1 years), all patients were alive, median Lansky score of 90. Seven patients were without evidence of disease, 6 had stable disease, 7 stable following progression and 1 had progressive disease managed expectantly.
Conclusion
Paediatric patients with low-grade thalamopeduncular gliomas have excellent long-term functional and oncological outcomes when gross total resection is not achievable. Surgery should aim at total resection; however, neurological function should not be endangered due to excellent chance for long-term survival.
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Availability of data and materials
Available from the corresponding author upon reasonable request.
Code availability
Not applicable.
Abbreviations
- cDNA:
-
Complementary deoxyribonucleic acid
- CST:
-
Cortico-spinal tract
- DNA:
-
Deoxyribonucleic acid
- EOR:
-
Extent of resection
- ETV:
-
Endoscopic third ventriculostomy
- FLAIR:
-
Fluid-attenuated inversion recovery
- GTR:
-
Gross total resection
- LGG:
-
Low-grade glioma
- MCS:
-
Milan Complexity Scale
- MRI:
-
Magnetic resonance imaging
- NTR:
-
Near total resection
- OS:
-
Overall survival
- PCR:
-
Polymerase chain reaction
- PFS:
-
Progression-free survival
- PR:
-
Partial resection
- RNA:
-
Ribonucleic acid
- RT PCR:
-
Reverse transcriptase polymerase chain reaction
- STR:
-
Subtotal resection
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Funding
This work was supported by the Grant Agency of Charles University, Prague PRIMUS/19/MED/06 and Research Project of the Ministry of Health of the Czech Republic No 00064203.
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All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by Vladimir Beneš 3rd, Michal Zápotocký, Petr Libý, Jakub Táborský, Jana Blažková Jr., Jana Blažková Sr., David Sumerauer, Adéla Mišove, Ivana Perníková, Martin Kynčl, Lenka Krsková, Miroslav Koblížek, Josef Zámečník, Ondřej Bradáč and Michal Tichý. The first draft of the manuscript was written by Vladimír Beneš 3rd and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Ethical approval was waived by the local Ethics Committee of Second Faculty of Medicine, Charles University and Motol University Hospital in view of the retrospective nature of the study and all the procedures being performed were part of the routine care.
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Comments
This manuscript describes a series of 21 children with thalamic and thalamopeduncular low grade gliomas treated between 2005 and 2020. The authors provide a good description of their patients and their surgical technique, emphasising their choice of operative approach, their use of adjunctive methods to maximise surgical safety and the fact that a good long term neurological and oncological outcome does not necessarily require a complete resection of the tumour. The authors have addressed comments from the initial reviewers. Although other similar series have been described, these are rare tumours and a relatively large well-described and well-managed series such as this one is still a useful addition to the literature. Within the current paradigms of chemotherapy and targeted therapy for low grade gliomas, their emphasis on surgical safety rather than complete resection is important. This is not always clarified in surgical series.
Kristian Aquilina
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QueryPrevious presentation: Accepted in part as an ePoster presentation for EANS 2021 Virtual Congress, October 03–07, 2021
This article is part of the Topical Collection on Pediatric Neurosurgery
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Beneš, V., Zápotocký, M., Libý, P. et al. Survival and functional outcomes in paediatric thalamic and thalamopeduncular low grade gliomas. Acta Neurochir 164, 1459–1472 (2022). https://doi.org/10.1007/s00701-021-05106-5
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DOI: https://doi.org/10.1007/s00701-021-05106-5