ArticleAnnals of surgical oncology2026
Single-Port Robot-Assisted Nipple-Sparing Mastectomy: Main Analysis of a Retrospective Multicenter Study (SPROUT, KoREa-BSG 09).
Article in Annals of surgical oncology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.
What it found
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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.
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.
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Who cites it
2 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Single-port robot-assisted nipple-sparing mastectomy: a systematic review.Journal of robotic surgery · 2026Pooled it
- Global evolution, intellectual structure, and emerging themes in robot-assisted breast oncologic surgery and cancer-related reconstruction: a bibliometric analysis.Journal of robotic surgery · 2026Article
Corrections and comments
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Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe emergence of single-port robotic systems has enabled their application in breast surgery, offering minimally invasive, cosmetically favorable options for mastectomy. This study aimed to evaluate surgical outcomes and operative efficiency of single-port robotic-assisted nipple-sparing mastectomy (SP-RNSM) across multiple institutions in Korea based on early experiences.
methodsThis multicenter retrospective study included the patients with primary breast cancer who underwent SP-RNSM with or without axillary surgery and immediate reconstruction between January 2018 and November 2023 at 12 institutions in Korea. Clinicopathologic characteristics, operative variables, including operative time, and postoperative outcomes were collected.
resultsA total of 428 patients were included in this study. Among them, 81.5% were diagnosed with invasive carcinoma, and 18.5% with ductal carcinoma in situ. The mean age was 45.7 years, and 78.5% were premenopausal. Direct-to-implant was the most common reconstruction method (66.1%). The mean breast surgeon's operative time, plastic surgeon's operative time, and total operative time were 160.5 ± 54.1, 167.1 ± 116.1, and 333.5 ± 132.6 minutes. Multivariable analysis identified lymph node metastasis, heavier breast weight, and absence of tumescent solution use as independent predictors of longer BS time, with breast weight showing the strongest association. Postoperatively, 80% of patients recovered without complications. The most common complication was seroma (10.5%), and the reoperation rate was 2.8%. In the learning curve analysis, no consistent or marked decrease in operative time was observed with increasing case numbers.
conclusionsThe SP-RNSM is a feasible and safe approach for breast cancer surgery with favorable surgical outcomes and minimal complications.
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