Evidence map›Paper›PMID 35716531›Full record

ArticleBreast (Edinburgh, Scotland)2022

A nested case-control study on radiation dose-response for cardiac events in breast cancer patients in Germany.

Dan Baaken, Hiltrud Merzenich, Marcus Schmidt, Inga Bekes, Lukas Schwentner, Wolfgang Janni, Achim Wöckel, Manfred Mayr, Stephan Mose, Thomas Merz and 7 more

Open access · goldAbstract read
In one paragraph

Article in Breast (Edinburgh, Scotland), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 2 pooled it
2.0field-weighted citation impact, top 13% 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

7 citing papers in PubMed, 2 syntheses or guidelines pooled it, 12 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Review
  4. Review
  5. Article
  6. Article
  7. Review
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

17 authors at 4 institutions in 1 country.

Dan BaakenUniversity Medical Center of the Johannes Gutenberg-University Mainz, Institute of Medical Biostatistics, Epidemiology and Informatics, 55101, Mainz, Germany. Electronic address: dabaaken@uni-mainz.de.
Hiltrud MerzenichUniversity Medical Center of the Johannes Gutenberg-University Mainz, Institute of Medical Biostatistics, Epidemiology and Informatics, 55101, Mainz, Germany.
Marcus SchmidtUniversity Medical Center of the Johannes Gutenberg-University Mainz, Department of Obstetrics and Gynecology, 55101, Mainz, Germany.
Inga BekesUniversity Hospital Ulm, Department of Gynecology and Obstetrics, 89075, Ulm, Germany.
Lukas SchwentnerUniversity Hospital Ulm, Department of Gynecology and Obstetrics, 89075, Ulm, Germany.
Wolfgang JanniUniversity Hospital Ulm, Department of Gynecology and Obstetrics, 89075, Ulm, Germany.
Achim WöckelUniversity Hospital Ulm, Department of Gynecology and Obstetrics, 89075, Ulm, Germany; University Hospital Würzburg, 97080, Würzburg, Germany.
Manfred MayrStrahlentherapie Süd am Klinikum Kaufbeuren, 87600, Kaufbeuren, Germany.
Stephan MoseSchwarzwald-Baar Klinikum, Klinik für Strahlentherapie und Radioonkologie, 78052, Villingen-Schwenningen, Germany.
Thomas MerzKliniken Landkreis Heidenheim gGmbH, Department of Radiation Oncology and Radiotherapy, 89522, Heidenheim, Germany.
Voica GhilescuKliniken Landkreis Heidenheim gGmbH, Department of Radiation Oncology and Radiotherapy, 89522, Heidenheim, Germany.
Jona RennerUniversity Hospital Ulm, Department of Radiation Oncology, 89081, Ulm, Germany.
Detlef BartkowiakUniversity Hospital Ulm, Department of Radiation Oncology, 89081, Ulm, Germany.
Thomas WiegelUniversity Hospital Ulm, Department of Radiation Oncology, 89081, Ulm, Germany.
Maria BlettnerUniversity Medical Center of the Johannes Gutenberg-University Mainz, Institute of Medical Biostatistics, Epidemiology and Informatics, 55101, Mainz, Germany.
Heinz SchmidbergerUniversity Medical Center of the Johannes Gutenberg-University Mainz, Department of Radiation Oncology and Radiation Therapy, 55101, Mainz, Germany.
Daniel WollschlägerUniversity Medical Center of the Johannes Gutenberg-University Mainz, Institute of Medical Biostatistics, Epidemiology and Informatics, 55101, Mainz, Germany.
Johannes Gutenberg University Mainz · DEUniversity Hospital Ulm · DESchwarzwald-Baar Klinikum · DEUniversitätsklinikum Würzburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPrevious studies with the majority of breast cancer (BC) patients treated up to 2000 provided evidence that radiation dose to the heart from radiotherapy (RT) was linearly associated with increasing risk for long-term cardiac disease. RT techniques changed substantially over time. This study aimed to investigate the dose-dependent cardiac risk in German BC patients treated with more contemporary RT.

methodsIn a cohort of 11,982 BC patients diagnosed in 1998-2008, we identified 494 women treated with 3D-conformal RT who subsequently developed a cardiac event. Within a nested case-control approach, these cases were matched to 988 controls. Controls were patients without a cardiac event after RT until the index date of the corresponding case. Separate multivariable conditional logistic regression models were used to assess the association of radiation to the complete heart and to the left anterior heart wall (LAHW) with cardiac events.

resultsMean dose to the heart for cases with left-sided BC was 4.27 Gy and 1.64 Gy for cases with right-sided BC. For controls, corresponding values were 4.31 Gy and 1.66 Gy, respectively. The odds ratio (OR) per 1 Gy increase in dose to the complete heart was 0.99 (95% confidence interval (CI): 0.94-1.05, P = .72). The OR per 1 Gy increase in LAHW dose was 1.00 (95% CI: 0.98-1.01, P = .68).

conclusionsContrary to previous studies, our study provided no evidence that radiation dose to the heart from 3D-conformal RT for BC patients treated between 1998 and 2008 was associated with risk of cardiac events.

Indexed as

Breast NeoplasmsRadiotherapy, ConformalUnilateral Breast NeoplasmsCase-Control StudiesFemaleHeartHumansRadiation DosageRadiotherapy DosageBreast cancerCardiac morbidityCardiac mortalityDose-response analysisNested case-control studyRadiotherapy

Identifiers

PMID35716531
PMCPMC9207715
OpenAlexW4281653341

What OpenQuestion holds

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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.