Evidence map›Paper›PMID 34596831›Full record

ArticleJournal of neuro-oncology2021

Comparison of hypothyroidism, growth hormone deficiency, and adrenal insufficiency following proton and photon radiotherapy in children with medulloblastoma.

Kathleen D Aldrich, Vincent E Horne, Kevin Bielamowicz, Rona Y Sonabend, Michael E Scheurer, Arnold C Paulino, Anita Mahajan, Murali Chintagumpala, Mehmet F Okcu, Austin L Brown

Open access · greenAbstract read
In one paragraph

Article in Journal of neuro-oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 5 pooled it
3.4field-weighted citation impact, top 6% 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

29 citing papers in PubMed, 5 syntheses or guidelines pooled it, 41 citations in OpenAlex.

  1. Guideline
  2. Proton versus photon radiation therapy for pediatric medulloblastomas: a systematic review and meta-analysis.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2025
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  18. Recent Advances in Pediatric Medulloblastoma.Current neurology and neuroscience reports · 2023
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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

10 authors at 4 institutions in 1 country.

Kathleen D AldrichDepartment of Pediatrics, Baylor College of Medicine, Houston, TX, USA.
Vincent E HorneSection of Diabetes and Endocrinology, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA.
Kevin BielamowiczDepartment of Pediatrics, The University of Arkansas for Medical Sciences, Little Rock, AR, USA.
Rona Y SonabendSection of Diabetes and Endocrinology, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA.
Michael E ScheurerDepartment of Pediatrics, Baylor College of Medicine, Houston, TX, USA.
Arnold C PaulinoDivision of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Anita MahajanRadiation Oncology, Mayo Clinic, Rochester, MN, USA.
Murali ChintagumpalaDepartment of Pediatrics, Baylor College of Medicine, Houston, TX, USA.
Mehmet F Okcu *Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA.
Austin L BrownDepartment of Pediatrics, Baylor College of Medicine, Houston, TX, USA. Austin.Brown@bcm.edu.
Baylor College of Medicine · USMayo Clinic in Arizona · USThe University of Texas MD Anderson Cancer Center · USUniversity of Arkansas for Medical Sciences · US

Funding

Integrative Molecular Epidemiology of Neurocognitive Outcomes in Acute Lymphoblastic LeukemiaK07CA218362 · NCI · BAYLOR COLLEGE OF MEDICINE · PI BROWN, AUSTIN L · 2018 to 2022
$758k
NCI NIH HHS K07 CA218362
6 · The paper itself

Abstract

backgroundEndocrine deficiencies are common following Craniospinal irradiation (CSI) in children with brain tumors, but empirical data comparing outcomes following proton (PRT) and photon radiation therapy (XRT) are limited.

methodsThis retrospective chart review compared the incidence of hypothyroidism, Growth hormone deficiency (GHD), and Adrenal insufficiency (AI) in patients with medulloblastoma treated with XRT and PRT between 1997 and 2016. All patients received CSI and had routine endocrine screening labs to evaluate for thyroid dysfunction, GHD, and AI. We used proportional hazards regression to calculate hazard ratios (HR) and 95% confidence intervals (CI) comparing the development of hypothyroidism, AI, and GHD between radiation modalities, adjusting for age at diagnosis, sex, race/ethnicity, and CSI dose.

resultsWe identified 118 patients with medulloblastoma who were followed for a median of 5.6 years from the end of radiotherapy. Thirty-five (31%) patients developed hypothyroidism, 71 (66%) GHD, and 20 (18%) AI. Compared to PRT, XRT was associated with a higher incidence of primary hypothyroidism (28% vs. 6%; HR = 4.61, 95% CI 1.2-17.7, p = 0.03). Central hypothyroidism, GHD, and AI incidence rates were similar between the groups.

conclusionsPrimary hypothyroidism occurs less often after PRT CSI, compared to XRT CSI. This suggests that the thyroid and pituitary glands receive less radiation after spine and posterior fossa boost RT, respectively, using PRT.

Indexed as

Adrenal InsufficiencyCerebellar NeoplasmsCraniospinal IrradiationHypothyroidismMedulloblastomaProton TherapyChildGrowth HormoneHumansProtonsRadiotherapy DosageRetrospective StudiesGrowth HormoneProtonsAdrenal insufficiencyCranial radiotherapyGrowth hormone deficiencyHypothyroidismPediatric medulloblastomaProton radiation therapy

Identifiers

PMID34596831
PMCPMC8832472
OpenAlexW3204403911

What OpenQuestion holds

Textmetadata
LicenceTDM
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.