Evidence map›Paper›PMID 29280467›Full record

ArticleInternational journal of radiation oncology, biology, physics2017

Potential of Proton Therapy to Reduce Acute Hematologic Toxicity in Concurrent Chemoradiation Therapy for Esophageal Cancer.

Samantha Warren, Christopher N Hurt, Thomas Crosby, Mike Partridge, Maria A Hawkins

Open access · hybridAbstract read
In one paragraph

Article in International journal of radiation oncology, biology, physics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 2 pooled it
1.6field-weighted citation impact, top 16% 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

15 citing papers in PubMed, 2 syntheses or guidelines pooled it, 24 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Article
  5. Review
  6. Review
  7. Review
  8. Current status and application of proton therapy for esophageal cancer.Radiotherapy and oncology : journal of the European Society for Therapeutic Radiology and Oncology · 2021
    Review
  9. Review
  10. Review of clinical results of charged-particle therapy for esophageal cancer.Esophagus : official journal of the Japan Esophageal Society · 2021
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
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

5 authors at 3 institutions in 1 country.

Samantha WarrenCancer Research UK/Medical Research Council Oxford Institute for Radiation Oncology, Gray Laboratories, University of Oxford, Oxford, United Kingdom.
Christopher N HurtWales Cancer Trials Unit, School of Medicine, Cardiff, United Kingdom.
Thomas CrosbyVelindre Cancer Centre, Velindre Hospital, Cardiff, United Kingdom.
Mike PartridgeCancer Research UK/Medical Research Council Oxford Institute for Radiation Oncology, Gray Laboratories, University of Oxford, Oxford, United Kingdom.
Maria A HawkinsCancer Research UK/Medical Research Council Oxford Institute for Radiation Oncology, Gray Laboratories, University of Oxford, Oxford, United Kingdom. Electronic address: maria.hawkins@oncology.ox.ac.uk.
Cancer Research UK · GBCancer Research UK Clinical Trials Unit · GBVelindre Cancer Centre · GB

Funding

Cancer Research UK 15954Cancer Research UK 7256Medical Research Council MC_PC_12001/2
6 · The paper itself

Abstract

purposeRadiation therapy dose escalation using a simultaneous integrated boost (SIB) is predicted to improve local tumor control in esophageal cancer; however, any increase in acute hematologic toxicity (HT) could limit the predicted improvement in patient outcomes. Proton therapy has been shown to significantly reduce HT in lung cancer patients receiving concurrent chemotherapy. Therefore, we investigated the potential of bone marrow sparing with protons for esophageal tumors. METHODS AND MATERIALS: Twenty-one patients with mid-esophageal cancer who had undergone conformal radiation therapy (3D50) were selected. Two surrogates for bone marrow were created by outlining the thoracic bones (bone) and only the body of the thoracic vertebrae (TV) in Eclipse. The percentage of overlap of the TV with the planning treatment volume was recorded for each patient. Additional plans were created retrospectively, including a volumetric modulated arc therapy (VMAT) plan with the same dose as for 3D50; a VMAT SIB plan with a dose prescription of 62.5 Gy to the high-risk subregion within the planning treatment volume; a reoptimized TV-sparing VMAT plan; and a proton therapy plan with the same SIB dose prescription. The bone and TV dose metrics were recorded and compared across all plans and variations with respect to PTV and percentage of overlap for each patient.

resultsThe 3D50 plans showed the highest bone mean dose and TV percentage of volume receiving ≥30 Gy (V

conclusionsThe results of the present study have shown that proton therapy can reduced bone marrow toxicity.

Indexed as

Bone MarrowChemoradiotherapyEsophageal NeoplasmsHumansOrgans at RiskOrgan Sparing TreatmentsProton TherapyRadiation InjuriesRadiotherapy DosageRadiotherapy, Intensity-ModulatedRadiotherapy Planning, Computer-AssistedThoracic Vertebrae

Identifiers

PMID29280467
PMCPMC5612280
OpenAlexW2741895706

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.