Evidence map›Paper›PMID 34609903›Full record

ArticleJCO global oncology2021

Molecular Subgroup Is the Strongest Predictor of Medulloblastoma Outcome in a Resource-Limited Country.

Nisreen Amayiri, Maisa Swaidan, Ahmed Ibrahimi, Nader Hirmas, Awni Musharbash, Eric Bouffet, Maysa Al-Hussaini, Vijay Ramaswamy

Abstract read
In one paragraph

Article in JCO global oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

19 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Long-term outcomes of pediatric medulloblastoma before routine molecular classification: a 20-year single-center cohort study.Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery · 2026
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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

8 authors.

Nisreen AmayiriDivision of Pediatric Hematology/Oncology, King Hussein Cancer Center, Amman, Jordan.ORCID 0000-0002-7972-5885
Maisa SwaidanDivision of Radiology, King Hussein Cancer Center, Amman, Jordan.
Ahmed IbrahimiDivision of Radiation Oncology, King Hussein Cancer Center, Amman, Jordan.
Nader HirmasResearch and Grants Office, King Hussein Cancer Center, Amman, Jordan.
Awni MusharbashDivision of Surgery, King Hussein Cancer Center, Amman, Jordan.ORCID 0000-0003-4785-1323
Eric BouffetDivision of Hematology/Oncology, The Hospital for Sick Children, Toronto, Canada.
Maysa Al-HussainiDivision of Pathology, King Hussein Cancer Center, Amman, Jordan.ORCID 0000-0001-6392-150X
Vijay RamaswamyDivision of Hematology/Oncology, The Hospital for Sick Children, Toronto, Canada.ORCID 0000-0002-6557-895X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeMedulloblastoma is composed of four clinically and prognostically distinct molecular subgroups (WNT, SHH, group 3, and group 4). However, the clinical implications of these subgroups in the context of the unique challenges of low- to middle-income countries are rarely reported.

methodsWe assembled an institutional cohort of children (3-18 years) diagnosed with medulloblastoma and treated in Jordan between 2003 and 2016. Tumors were subgrouped by NanoString and correlated with clinical and radiologic characteristics.

resultsEighty-eight patients were identified (63% male); median age was 6.9 years (interquartile range 4.8-9.2) and median symptom duration was 6 weeks (interquartile range 4-11). Radiotherapy was implemented as standard-risk in 41 patients (47%) and high-risk in 47 patients (53%). Subgrouping revealed 17 WNT (19%), 22 SHH (25%), 21 group 3 (24%), and 28 group 4 tumors (32%). Median time between craniotomy and radiotherapy was 45 days (17-155); 44% of them > 49 days. Median duration of radiotherapy was 44 days (36-74). Seventy-two patients (82%) received chemotherapy afterward. With a median follow-up of 4.6 years (0.2-14.9), 5-year progression-free survival (PFS) and overall survival were 73.5% and 69.4%, respectively, with no statistically significant survival difference between standard-risk and high-risk patients. Metastasis was significant for overall survival (

conclusionPatients with SHH and group 4 medulloblastoma had excellent survival comparable with high-income countries. Compliance with treatment protocols and avoiding radiotherapy delays are important in achieving adequate survival in low- to middle-income country settings. Subgroup-driven treatment protocols should be considered in countries with limited resources.

Indexed as

Cerebellar NeoplasmsMedulloblastomaChildCohort StudiesFemaleHumansInfantJordanMaleProgression-Free Survival

Identifiers

PMID34609903
PMCPMC8492378

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Registered trials

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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.