SynthesisAnnals of surgical oncology2026
A Decade Later: An Updated Systematic Review and Meta-analysis of Overall Survival, Disease-Free Survival, Local Recurrence, and Nipple-Areolar Recurrence Following Nipple-Sparing Mastectomy.
Synthesis in Annals of surgical oncology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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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.
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Authors and funding
6 authors.
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Abstract
backgroundSince our 2015 manuscript, nipple-sparing mastectomy (NSM) has been increasingly adopted in breast cancer management, though concerns regarding long-term oncologic safety persist. We provide a 10-year update on oncologic outcomes following NSM, including overall survival (OS), disease-free survival (DFS), local recurrence (LR), and nipple-areolar complex recurrence (NACR). PATIENTS AND
methodsA Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA)-compliant systematic review identified studies reporting oncologic outcomes after NSM. Studies with internal comparison arms evaluating therapeutic NSM versus skin-sparing mastectomy (SSM) and/or modified radical mastectomy (MRM) were included in the meta-analysis. Studies lacking comparison arms were included in pooled analyses for NSM outcomes using a random-effects model. Weighted averages and 95% confidence intervals (CI) were calculated, and studies were stratified by duration of follow-up.
resultsA total of 60 studies comprising 7752 NSM patients were included: 11 studies had comparison arms; 9 studies reporting OS demonstrated a significant pooled risk difference of 2.1% favoring NSM over MRM/SSM (95% CI 0.0-4.3%, p = 0.047); 7 studies reporting DFS showed a nonsignificant pooled risk difference of 4.8% favoring NSM (95% CI -0.8 to 10.3%, p = 0.093); 11 studies reporting LR demonstrated a nonsignificant pooled risk difference of -0.7% (95% CI -2.1 to 0.8%, p = 0.35). The systematic review included all 60 studies. Weighted average follow-up ranged from 25.6 to 133.4 months across groups. Among patients with 10 years of follow-up (n = 391), OS was 82.0% (80.9-93.2%), DFS 60.7% (58.8-62.7%), LR 15.1% (13.9-16.2%), and NACR 1.1% (1.0-1.1%).
conclusionsNSM is associated with excellent long-term survival and low recurrence rates comparable to SSM/MRM, with minimal NAC recurrence in appropriately selected patients, supporting its long-term oncologic safety.
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