Evidence map›Paper›PMID 27509195›Full record

SynthesisSpine2016

Safety and Local Control of Radiation Therapy for Chordoma of the Spine and Sacrum: A Systematic Review.

Brenton Pennicooke, Ilya Laufer, Arjun Sahgal, Peter P Varga, Ziya L Gokaslan, Mark H Bilsky, Yoshiya J Yamada

Abstract readSystematic Review
In one paragraph

Synthesis in Spine, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers, 6 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed, 6 pooled it
10.2field-weighted citation impact, top 1% 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

44 citing papers in PubMed, 6 syntheses or guidelines pooled it, 117 citations in OpenAlex.

  1. Pooled it
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  7. Article
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  9. Review
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  14. Article
  15. Chordoma: Genetics and Contemporary Management.International journal of molecular sciences · 2024
    Review
  16. Article
  17. Article
  18. Chordoma: demographics and survival analysis with a focus on racial disparities and the role of surgery, a U.S. population-based study.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2024
    Article
  19. Article
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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

7 authors at 4 institutions in 3 countries.

Brenton PennicookeDepartment of Neurological Surgery, Memorial Sloan Kettering Cancer Center, New York, NY.
Ilya LauferDepartment of Neurological Surgery, Memorial Sloan Kettering Cancer Center, New York, NY.
Arjun SahgalDepartment of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada.
Peter P VargaDepartment of Spinal Disorders, National Health Center, Budapest, Hungary.
Ziya L GokaslanDepartment of Neurosurgery, The Warren Alpert Medical School of Brown University, Rhode Island Hospital and Norman Prince Neurosciences Institute, Providence, RI.
Mark H BilskyDepartment of Neurological Surgery, Memorial Sloan Kettering Cancer Center, New York, NY.
Yoshiya J YamadaDepartment of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York, NY.
Memorial Sloan Kettering Cancer Center · USCornell University · USNational Center for Spinal Disorders · HUUniversity of Toronto · CA

Funding

X-RAY CRYSTALLOGRAPHYP30CA008748 · NCI · SLOAN-KETTERING INSTITUTE FOR CANCER RES · PI Nicholas D Socci · 1985 to 2026
$347.4M
MSKCC Clinical Oncology Research Career Development ProgramK12CA120121 · NCI · SLOAN-KETTERING INST CAN RESEARCH · PI SCHWARTZ, GARY K · 2006 to 2010
$3.0M
NCI NIH HHS K12 CA120121NCI NIH HHS P30 CA008748
6 · The paper itself

Abstract

STUDY

designSystematic literature review.

objectiveTo assess the toxicity, common radiation doses, and local control (LC) rates of radiation therapy for chordoma of the spine and sacrum and identify the difference in LC and toxicity between adjuvant, salvage, and primary therapy using radiation. SUMMARY OF BACKGROUND DATA: Chordoma of the spine is typically a low-grade malignant tumor thought to be relatively radioresistant with a high rate of local recurrence and the potential for metastases. Improved results of modern radiation therapy in the treatment of chordoma support exploration of its role in the management of primary/de novo chordoma or recurrent chordoma.

methodsWe conducted a systematic literature review using PubMed and Embase databases to assess information available regarding the toxicity, LC rates, and overall survival (OS) rates for adjuvant, salvage, and primary radiation therapy for spinal and sacral chordoma.

resultsA total of 40 articles were reviewed. Evidence quality was low or very low. The highest rates of LC and OS were with early adjuvant RT for primary/de novo disease. Salvage RT for recurrent disease has very small cohorts and thus strong conclusions were not able be made.

conclusionThe use of pre- and/or post-operative photon image-guided radiotherapy (IGRT), proton or carbon ion therapy should be considered for patients undergoing surgery for the treatment of primary and recurrent chordomas in the mobile spine and sacrum, since these RT modalities may improve local control. Preoperative evaluation by the surgeon and radiation oncologist should be used to formulate a cohesive treatment plan.The use of photon IGRT or carbon ion therapy as the primary treatment of chordoma, when currently in its developmental stage, shows promise and requires clear delineation of toxicity profile and long-term local control. LEVEL OF EVIDENCE: 2.

Indexed as

ChordomaHumansProton TherapyRadiotherapy DosageRadiotherapy, Intensity-ModulatedSacrumSpinal NeoplasmsTreatment Outcome

Identifiers

PMID27509195
PMCPMC5572655
OpenAlexW2518305254

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.