ArticleBMC women's health2025
Trends and survival benefits of bilateral breast-conserving surgery in patients with metachronous bilateral breast cancer.
Article in BMC women's health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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.
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.
Who cites it
2 citing papers in PubMed.
- Bilateral Primary Breast Cancer: Current Evidence and Future Perspectives.Breast cancer (Dove Medical Press) · 2026Review
- Survival analysis of metachronous bilateral ectopic breast cancer utilizing the SEER database and the pioneering construction of a nomogram model.European journal of medical research · 2025Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThis study aims to investigate the temporal trends and survival outcomes of bilateral breast-conserving surgery (BCS) in women diagnosed with metachronous bilateral breast cancer (MBBC) in the USA from 2000 to 2019.
methodsPatients with stage T0-T3 and stage 0-III MBBC who underwent unilateral BCS on one side and different surgical procedures on the contralateral side from 2000 to 2019 were identified from the Surveillance, Epidemiology, and End Results (SEER) database. The Cochrane-Armitage test for trend was employed to assess the trends in contralateral breast surgical procedures, including BCS, mastectomy (M) and breast-reconstruction (BR). Overall survival (OS) and breast cancer-specific survival (BCSS) were analyzed using Kaplan-Meier curves and univariate and multivariate Cox proportional hazards regression analyses. Since BR is typically performed following M, survival data for the BR and M groups were combined and collectively analyzed as the M group.
resultsA total of 9571 patients with stage T0-T3 and stage 0-III who underwent unilateral BCS were included in this study, with 75.84% (n = 7,259) opting for BCS treatment. The proportion of BCS was decreased significantly from 90.79% in 2000 to 74.04% in 2019 (P < 0.0001). Older age was positively correlated with BCS, while recent diagnosis, late T stage, lymph node metastasis, invasive lobular carcinoma and chemotherapy were negatively correlated with BCS. Kaplan-Meier survival analysis indicated that BCS patients had better OS (P < 0.001) and BCSS (P < 0.001) compared with patients receiving M. Univariate Cox analysis indicated that BCS showed significant statistical differences in both OS and BCSS. Specifically, the hazard ratio (HR) for OS and BCSS were 0.717 (95% CI 0.649-0.791, P < 0.001) and 0.484 (95% CI 0.422-0.556, P < 0.001), respectively. Multivariate Cox analysis indicated that BCS was not an independent prognostic factor for OS (HR = 1.012, 95% CI 0.904-1.132, P > 0.05), suggesting no significant difference in OS between the BCS and M groups. Conversely, BCS was an independent favorable prognostic factor for BCSS (HR = 0.746, 95% CI 0.634, 0.877; P < 0.05).
conclusionDespite the initial high utilization of BCS in MBBC patients, our study revealed a decline in its usage over the course of the study period. Importantly, this decrease did not impact OS, suggesting the safety of BCS for MBBC patients. In light of these findings, clinicians are encouraged to recommend BCS for eligible MBBC patients, emphasizing its viability as a treatment option.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.