Evidence map›Paper›PMID 24101739›Full record

ArticleNeuro-oncology2013

Proton radiotherapy for pediatric central nervous system ependymoma: clinical outcomes for 70 patients.

Shannon M Macdonald, Roshan Sethi, Beverly Lavally, Beow Y Yeap, Karen J Marcus, Paul Caruso, Margaret Pulsifer, Mary Huang, David Ebb, Nancy J Tarbell and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Neuro-oncology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed, 5 pooled it
5.8field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

63 citing papers in PubMed, 5 syntheses or guidelines pooled it, 148 citations in OpenAlex.

  1. Guideline
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  3. 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 · 2022
    Pooled it
  4. Neurocognitive impairment following proton therapy for paediatric brain tumour: a systematic review of post-therapy assessments.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2021
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3 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

11 authors at 2 institutions in 1 country.

Shannon M MacdonaldThis paper was presented at the International Symposium on Pediatric Neuro-Oncology on June 24, 2012, in Toronto, Canada.Corresponding Author: Shannon MacDonald, MD, Massachusetts General Hospital, Department of Radiation Oncology, Yawkey 112, 30 Fruit Street, Boston, MA 02114. smacdonald@partners.org.
Roshan Sethi
Beverly Lavally
Beow Y Yeap
Karen J Marcus
Paul Caruso
Margaret Pulsifer
Mary Huang
David Ebb
Nancy J Tarbell
Torunn I Yock
Massachusetts General Hospital · USHarvard University Press · US

Funding

PROTON THERAPY RESEARCH AND TREATMENT CENTERC06CA059267 · NCI · MASSACHUSETTS GENERAL HOSPITAL · PI GOITEIN, MICHAEL · 1992 to 1995
–
NCI NIH HHS C06 CA059267
6 · The paper itself

Abstract

backgroundEpendymoma is treated with maximal surgical resection and localized radiotherapy. Minimizing unnecessary exposure to radiation is of paramount importance for young children. Proton radiotherapy (PRT) spares healthy tissues outside the target region, but reports of clinical outcomes are scarce. We report outcomes for 70 patients treated with PRT for intracranial ependymoma.

methodsSeventy patients with localized ependymoma treated with involved-field PRT at the Massachusetts General Hospital between October 2000 and February 2011 were included.

resultsMedian age at diagnosis was 38 months (range, 3 mo-20 y). Nineteen (27%) patients had supratentorial ependymoma and 51(73%) had infratentorial ependymoma. Forty-six (66%) had gross total resection (GTR), and 24 (34%) had subtotal resection (STR). At a median follow-up of 46 months, 3-year local control, progression-free survival, and overall survival were 83%, 76%, and 95%, respectively. STR was significantly associated with worse progression-free survival (54% vs 88%, P = .001) and overall survival (90% vs 97% for GTR, P = .001). In a subset of patients (n = 14), mean intelligence was 108.5 at baseline and 111.3 after mean 2.05 years of follow-up. In a larger group of patients (n = 28), overall adaptive skills were 100.1 at baseline and 100.8 after 2.21 years of follow-up. Few patients developed evidence of growth hormone deficiency, hypothyroidism, or hearing loss.

conclusionOutcomes for children treated with PRT compare favorably with the literature. STR correlated with inferior outcome. The young age at diagnosis and the proximity of critical structures in patients with ependymoma make PRT an ideal radiation modality.

Indexed as

Proton TherapyBrain NeoplasmsCentral Nervous SystemEpendymomaFemaleHumansMaleNeuropsychological TestsTreatment Outcomecentral nervous systempediatric ependymomaprotonradiation

Identifiers

PMID24101739
PMCPMC3813421
OpenAlexW2102409653

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.