Evidence map›Paper›PMID 33582622›Full record

SynthesisBreast (Edinburgh, Scotland)2021

Combined breast conservation therapy versus mastectomy for BRCA mutation carriers - A systematic review and meta-analysis.

M G Davey, C M Davey, É J Ryan, A J Lowery, M J Kerin

Open access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Breast (Edinburgh, Scotland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed, 2 pooled it
5.5field-weighted citation impact, top 4% 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

26 citing papers in PubMed, 2 syntheses or guidelines pooled it, 43 citations in OpenAlex.

  1. Guideline
  2. Pooled it
  3. Review
  4. Article
  5. Article
  6. Breast-Conserving Surgery inLife (Basel, Switzerland) · 2025
    Review
  7. Article
  8. Article
  9. Translational breast cancer research : a journal focusing on translational research in breast cancer · 2025
    Review
  10. Review
  11. ER-positive and BRCA2-mutated breast cancer: a literature review.European journal of medical research · 2024
    Review
  12. Article
  13. Article
  14. Article
  15. EBCC-13 manifesto: Balancing pros and cons for contralateral prophylactic mastectomy.European journal of cancer (Oxford, England : 1990) · 2023
    Review
  16. Review
  17. Review
  18. Article
  19. Article
  20. Breast-Conserving Surgery or Mastectomy?: Impact on Survival.Annals of surgery open : perspectives of surgical history, education, and clinical approaches · 2022
    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 2 institutions in 1 country.

M G DaveyThe Lambe Institute for Translational Research, National University of Ireland, Galway, Ireland; Department of Surgery, Galway University Hospitals, Galway, Ireland. Electronic address: m.davey7@nuigalway.ie.
C M DaveySchool of Medicine, National University of Ireland, Galway, Ireland.
É J RyanDepartment of Surgery, Galway University Hospitals, Galway, Ireland; Royal College of Surgeons in Ireland, Dublin, Ireland.
A J LoweryThe Lambe Institute for Translational Research, National University of Ireland, Galway, Ireland; Department of Surgery, Galway University Hospitals, Galway, Ireland.
M J KerinThe Lambe Institute for Translational Research, National University of Ireland, Galway, Ireland; Department of Surgery, Galway University Hospitals, Galway, Ireland.
Ollscoil na Gaillimhe – University of Galway · IERoyal College of Surgeons in Ireland · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe non-inferiority of combined breast conservation surgery (BCS) and radiotherapy (breast conservation therapy or BCT) compared to mastectomy in sporadic breast cancer cases is well recognised. Uncertainty remains regarding optimal surgical practice in BRCA mutation carriers.

aimsTo evaluate the oncological safety of combined BCT versus mastectomy in BRCA mutation carriers following breast cancer diagnosis.

methodsA systematic review was performed as per PRISMA and MOOSE guidelines. Observational studies comparing BCS and mastectomy in BRCA carriers were identified. Dichotomous variables were pooled as odds ratios (OR) using the Mantel-Haenszel method. Log hazard ratios (lnHR) for locoregional recurrence (LRR), contralateral breast cancer, disease-free and overall survival and their standard errors were calculated from Kaplan-Meier or cox-regression analyses and pooled using the inverse variance method.

resultsTwenty three studies of 3807 patients met inclusion criteria; 2200 (57.7%) were BRCA1 and 1212 (31.8%) were BRCA2 carriers. Median age at diagnosis was 41 years with 96 months follow up. BCS was performed on 2157 (56.7%) while 1408 (41.5%) underwent mastectomy. An increased risk of LRR was observed in patients treated with BCS (HR:4.54, 95% Confidence Interval: 2.77-7.42, P < 0.001, heterogeneity (I

conclusionsSurvival outcomes following combined BCT is comparable to mastectomy in BRCA carriers. However, the risk of LRR is increased. Patient counselling should be tailored to incorporate these findings.

Indexed as

Mastectomy, SegmentalRadiotherapy, AdjuvantBreast NeoplasmsFemaleGenes, BRCA2HumansMastectomyMutationNeoplasm Recurrence, LocalBRCA mutationsBreast cancerGeneticsSurgical oncology

Identifiers

PMID33582622
PMCPMC7887648
OpenAlexW3127992047

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.