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ArticleStrahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al]2017

Inclusion of PET-CT into planning of primary or neoadjuvant chemoradiotherapy of esophageal cancer improves prognosis.

Jan-Christopher Metzger, Daniel Wollschläger, Matthias Miederer, Peter Vaupel, Markus Moehler, Heinz Schmidberger, Arnulf Mayer

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Article in Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al], 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–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

12 citing papers in PubMed.

  1. Trial
  2. Review
  3. Review
  4. Article
  5. Article
  6. Value of PET imaging for radiation therapy.Strahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2021
    Review
  7. Article
  8. Impact ofStrahlentherapie und Onkologie : Organ der Deutschen Rontgengesellschaft ... [et al] · 2020
    Article
  9. Article
  10. International journal of clinical and experimental pathology · 2019
    Article
  11. Radiotherapy volume delineation using 18F-FDG-PET/CT modifies gross node volume in patients with oesophageal cancer.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2018
    Article
  12. Technology in cancer research & treatment
    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

7 authors.

Jan-Christopher MetzgerDepartment of Radiation Oncology and Radiotherapy, University Medical Center, Langenbeckstrasse 1, 55131, Mainz, Germany.ORCID http://orcid.org/0000-0001-6776-0379
Daniel WollschlägerInstitute of Medical Biostatistics, Epidemiology and Informatics (IMBEI), University Medical Center, Mainz, Germany.
Matthias MiedererDepartment of Nuclear Medicine, University Medical Center, Mainz, Germany.
Peter VaupelDepartment of Radiation Oncology and Radiotherapy, University Medical Center, Langenbeckstrasse 1, 55131, Mainz, Germany.
Markus MoehlerDepartment of Internal Medicine I, University Medical Center, Mainz, Germany.
Heinz SchmidbergerDepartment of Radiation Oncology and Radiotherapy, University Medical Center, Langenbeckstrasse 1, 55131, Mainz, Germany.
Arnulf MayerDepartment of Radiation Oncology and Radiotherapy, University Medical Center, Langenbeckstrasse 1, 55131, Mainz, Germany. arnmayer@uni-mainz.de.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPET-CT is widely used for both the staging and planning of primary or neoadjuvant chemoradiotherapy for esophageal cancer. Inclusion of PET-CT information into radiotherapy planning often leads to substantial modifications of the target volume. In the case of detection of distant metastases, it may also result in a switch to a palliative treatment approach. This spares patients from therapy-related toxicities that provide no clinical benefit. However, due to a lack of studies, it is currently unclear whether the advantages of PET-CT also translate into a measurable improvement in patient survival. PATIENTS AND

methodsA retrospective analysis assessed the survival data of 145 patients with esophageal carcinoma stages I (eight patients; 5%), II (45; 31%), III (79; 55%), IV (8; 5%) and unknown (5; 4%). Patients were treated between 1999 and 2014 either with primary chemoradiation (n = 101) or neoadjuvant chemoradiation at the Department of Radiation Oncology, University Medical Center Mainz, followed by transabdominal or transthoracic tumor resection (n = 44). Of the 145 patients, 64 (44%) had undergone PET-CT.

resultsUnivariate analysis showed the use of PET-CT to be associated with significantly longer local recurrence-free survival (p = 0.006) and tended to translate into a measurable improvement of overall survival (p = 0.071). Since more patients underwent surgery in the group planned using PET-CT (20% vs. 44%; p = 0.002), we carried out a multivariate Cox regression analysis to adjust for this possible confounding factor. Surgery (p = 0.042; HR 0.55; 95% confidence interval: 0.31-0.98) as well as the use of PET-CT (p = 0.048; HR 0.60; 95% confidence interval: 0.36-0.99) nearly halved the risk of local recurrence. It was only in the group of patients with PET-CT that a trend towards a shorter overall survival was evident in lymph node-positive patients (p = 0.16), whereas nodal stage did not impact on survival in patients staged without PET-CT (p = 0.97).

conclusionTo the best of our knowledge these data suggest for the first time that the use of PET-CT in the framework of staging and planning of primary or neoadjuvant chemoradiotherapy for esophageal cancer has a favorable impact on patient survival.

Indexed as

AdultAgedAged, 80 and overChemoradiotherapyEsophageal NeoplasmsFemaleGermanyHumansMaleMiddle AgedNeoplasm Recurrence, LocalPositron Emission Tomography Computed TomographyPrevalencePrognosisRadiotherapy DosageRadiotherapy, Image-GuidedChemoradiotherapyEsophageal cancerLocal recurrence-free survivalOverall survivalPositron emission tomography

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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.