Evidence map›Paper›PMID 41615490›Full record

ArticleBreast cancer research and treatment2026

A nomogram for predicting in-breast tumor recurrence risk in breast cancer patients treated with partial breast irradiation using intraoperative electron radiation therapy.

Damaris Patricia Rojas, Samuele Frassoni, Patrick Maisonneuve, Mattia Intra, Andriana Kouloura, Maria Alessia Zerella, Cristiana Iuliana Fodor, Luigi Cornacchia, Luca Bergamaschi, Claudia Sangalli and 11 more

Abstract read
PubMed Publisher
In one paragraph

Article in Breast cancer research and treatment, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

21 authors.

Damaris Patricia RojasDivision of Radiotherapy, IEO European Institute of Oncology IRCCS, Via Ripamonti 435, 20141, Milan, Italy.
Samuele FrassoniDepartment of Statistics and Quantitative Methods, University of Milano-Bicocca, Milan, Italy.
Patrick MaisonneuveDivision of Epidemiology and Biostatistics, IEO European Institute of Oncology IRCCS, Milan, Italy.
Mattia IntraDivision of Breast Surgery, IEO European Institute of Oncology IRCCS, Milan, Italy.
Andriana KoulouraDepartment of Breast Surgery, Athens Euroclinic Hospital, Athens, Greece.
Maria Alessia ZerellaDivision of Radiotherapy, IEO European Institute of Oncology IRCCS, Via Ripamonti 435, 20141, Milan, Italy. mariaalessia.zerella@ieo.it.
Cristiana Iuliana FodorDivision of Radiotherapy, IEO European Institute of Oncology IRCCS, Via Ripamonti 435, 20141, Milan, Italy.
Luigi CornacchiaDivision of Radiotherapy, IEO European Institute of Oncology IRCCS, Via Ripamonti 435, 20141, Milan, Italy.
Luca BergamaschiDivision of Radiotherapy, IEO European Institute of Oncology IRCCS, Via Ripamonti 435, 20141, Milan, Italy.
Claudia SangalliDivision of Breast Surgery, IEO European Institute of Oncology IRCCS, Milan, Italy.
Stefania ComiUnit of Medical Physics, IEO European Institute of Oncology IRCCS, Milan, Italy.
Anna MorraDivision of Radiotherapy, IEO European Institute of Oncology IRCCS, Via Ripamonti 435, 20141, Milan, Italy.
Samantha DicuonzoDivision of Radiotherapy, IEO European Institute of Oncology IRCCS, Via Ripamonti 435, 20141, Milan, Italy.
Viviana GalimbertiDivision of Breast Surgery, IEO European Institute of Oncology IRCCS, Milan, Italy.
Paolo VeronesiDivision of Breast Surgery, IEO European Institute of Oncology IRCCS, Milan, Italy.
Mattia ZaffaroniDivision of Radiotherapy, IEO European Institute of Oncology IRCCS, Via Ripamonti 435, 20141, Milan, Italy.
Maria Giulia VinciniDivision of Radiotherapy, IEO European Institute of Oncology IRCCS, Via Ripamonti 435, 20141, Milan, Italy. mariagiulia.vincini@ieo.it.
Vincenzo BagnardiDepartment of Statistics and Quantitative Methods, University of Milano-Bicocca, Milan, Italy.
Roberto OrecchiaUnit of Medical Physics, IEO European Institute of Oncology IRCCS, Milan, Italy.
Barbara Alicja Jereczek-Fossa *Division of Radiotherapy, IEO European Institute of Oncology IRCCS, Via Ripamonti 435, 20141, Milan, Italy.
Maria Cristina Leonardi *Division of Radiotherapy, IEO European Institute of Oncology IRCCS, Via Ripamonti 435, 20141, Milan, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeThe study aims to develop and validate a predictive tool for assessing the risk of in-breast tumor recurrence (IBTR) in breast cancer patients considered candidates for intraoperative radiotherapy using electrons (IOERT).

methodsThis study included 3397 breast cancer patients treated with IOERT at a single institution between 2000 and 2016. The primary endpoint was IBTR, with or without nodal or distant metastasis. Fine and Gray regression models were used to identify predictors of IBTR. A nomogram predicting the 5- and 10-year probability of IBTR was developed based on the multivariable model and was validated both internally and externally using data from the IOERT arm of the ELIOT phase III trial (585 patients).

resultsWith a median follow-up of 6.1 years (interquartile range 4.3-8.0), 265 IBTRs (7.8%) were observed, resulting in an IBTR cumulative incidence of 4.4% (95% CI 3.7-5.2) at 5 years and 13.5% (95% CI 11.7-15.5) at 10 years. Multivariable analysis revealed that age under 60, certain histologic subtypes, positive axillary nodes, and intermediate/high tumor grade were key risk factors for IBTR. The overall Harrell's concordance statistic was 0.69 (95% CI 0.66-0.73) in the internal and 0.64 (95% CI 0.57-0.71) in the external validation.

conclusionThe nomogram has demonstrated moderate discriminative ability in predicting IBTR in the internal validation set and may be a useful tool to support treatment decision-making in breast cancer patients eligible for IOERT.

Indexed as

Breast NeoplasmsElectronsNeoplasm Recurrence, LocalNomogramsAdultAgedFemaleHumansMiddle AgedNeoplasm GradingRisk FactorsBreast cancerIn-breast tumor recurrence (IBTR)Intraoperative radiotherapy with electronsNomogramPartial breast irradiation

Identifiers

What OpenQuestion holds

Textmetadata
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.