Evidence map›Paper›PMID 34199281›Full record

ArticleCancers2021

Comparing Local and Systemic Control between Partial- and Whole-Breast Radiotherapy in Low-Risk Breast Cancer-A Meta-Analysis of Randomized Trials.

Jan Haussmann, Wilfried Budach, Vratislav Strnad, Stefanie Corradini, David Krug, Livia Schmidt, Balint Tamaskovics, Edwin Bölke, Ioannis Simiantonakis, Kai Kammers and 1 more

Abstract read
In one paragraph

Article in Cancers, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing 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

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

  1. Pooled it
  2. Article
  3. Article
  4. Impact of breath hold on regional nodal irradiation and heart volume in field in left breast cancer adjuvant irradiation.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2024
    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

11 authors.

Jan HaussmannDepartment of Radiation Oncology, Heinrich Heine University, 40225 Dusseldorf, Germany.
Wilfried BudachDepartment of Radiation Oncology, Heinrich Heine University, 40225 Dusseldorf, Germany.
Vratislav StrnadDepartment of Radiation Oncology, University Erlangen, 91054 Erlangen, Germany.
Stefanie CorradiniDepartment of Radiation Oncology, University Hospital LMU (Ludwig Maximillian), 81377 Munich, Germany.ORCID 0000-0001-8709-7252
David KrugDepartment of Radiation Oncology, University Hospital Schleswig-Holstein, 24105 Kiel, Germany.
Livia SchmidtDepartment of Radiation Oncology, Heinrich Heine University, 40225 Dusseldorf, Germany.
Balint TamaskovicsDepartment of Radiation Oncology, Heinrich Heine University, 40225 Dusseldorf, Germany.ORCID 0000-0002-2533-0167
Edwin BölkeDepartment of Radiation Oncology, Heinrich Heine University, 40225 Dusseldorf, Germany.ORCID 0000-0001-9112-1024
Ioannis SimiantonakisDepartment of Radiation Oncology, Heinrich Heine University, 40225 Dusseldorf, Germany.
Kai KammersDivision of Biostatistics and Bioinformatics, Department of Oncology, The Sidney Kimmel Comprehensive Cancer Center at Johns Hopkins, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.ORCID 0000-0001-5548-7942
Christiane MatuschekDepartment of Radiation Oncology, Heinrich Heine University, 40225 Dusseldorf, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

PURPOSE/

objectiveThe standard treatment for localized low-risk breast cancer is breast-conserving surgery, followed by adjuvant radiotherapy and appropriate systemic therapy. As the majority of local recurrences occur at the site of the primary tumor, numerous trials have investigated partial-breast irradiation (PBI) instead of whole-breast treatment (WBI) using a multitude of irradiation techniques and fractionation regimens. This meta-analysis addresses the impact on disease-specific endpoints, such as local and regional control, as well as disease-free survival of PBI compared to that of WBI in published randomized trials. MATERIAL AND

methodsWe conducted a systematic literature review and searched for randomized trials comparing WBI and PBI in early-stage breast cancer with publication dates after 2009. The meta-analysis was based on the published event rates and the effect sizes for available oncological endpoints of at least two trials reporting on them. We evaluated in-breast tumor recurrences (IBTR), local recurrences at the primary site and elsewhere in the ipsilateral breast, regional recurrences (RR), distant metastasis-free interval (DMFI), disease-free survival (DFS), contralateral breast cancer (CBC), and second primary cancer (SPC). Furthermore, we aimed to assess the impact of different PBI techniques and subgroups on IBTR. We performed all statistical analyses using the inverse variance heterogeneity model to pool effect sizes.

resultsFor the intended meta-analysis, we identified 13 trials (overall 15,561 patients) randomizing between PBI and WBI. IBTR was significantly higher after PBI (OR = 1.66; CI-95%: 1.07-2.58;

conclusionLimiting the target volume to partial-breast radiotherapy appears to be appropriate when selecting patients with a low risk for local and regional recurrences and using a suitable technique.

Indexed as

breast cancerlocal recurrencepartial-breast treatmentradiotherapy

Identifiers

PMID34199281
PMCPMC8231985

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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.