ArticleBreast cancer research and treatment2021
Outcomes of Stage I and II Breast Cancer with Nodal Micrometastases Treated with Mastectomy without Axillary Therapy.
Article in Breast cancer research and treatment, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 4 of them syntheses that pooled 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.
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
10 citing papers in PubMed, 4 syntheses or guidelines pooled it, 24 citations in OpenAlex.
- Can axillary lymph node dissection be omitted in breast cancer patients with 1-2 positive sentinel nodes? A systematic review and meta-analysis.The oncologist · 2025Pooled it
- Effect of post-mastectomy radiation therapy on survival in breast cancer with lymph nodes micrometastases: a meta-analysis and systematic review.Frontiers in oncology · 2025Pooled it
- Can Axillary Lymph Node Dissection be Omitted in Breast Cancer Patients with Metastatic Sentinel Lymph Nodes Undergoing Mastectomy? A Systematic Review and Meta-Analysis of Real-World Evidence.World journal of surgery · 2023Pooled it
- Axillary management in patients with clinical node-negative early breast cancer and positive sentinel lymph node: a systematic review and meta-analysis.Frontiers in oncology · 2023Pooled it
- The clinical relevance of LODDS for post-mastectomy radiotherapy in T1-2N1M0 breast cancer: a real-world propensity score-weighted analysis using the SEER database.Gland surgery · 2026Article
- Prognosis of patients with hormone receptor-positive, human epidermal growth factor receptor 2-negative, 1-3 node-positive breast cancer meeting the high-risk criteria of the monarchE trial: a comparison between macrometastasis and micrometastasis.Breast cancer (Tokyo, Japan) · 2026Article
- Postmastectomy Radiation Therapy: An ASTRO/ASCO/SSO Clinical Practice Guideline.Annals of surgical oncology · 2025Article
- A nomogram to predict the benefit of postmastectomy radiotherapy in breast cancer with nodal micrometastases.Breast cancer (Tokyo, Japan) · 2025Article
- Axillary Management for Patients Undergoing Total Mastectomy and a Positive Sentinel Lymph Node: Is Axillary Dissection Necessary?World journal of surgery · 2025Article
- Prognosis and local treatment strategies of breast cancer patients with different numbers of micrometastatic lymph nodes.World journal of surgical oncology · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
15 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeStudies that report equivalent oncologic outcomes of sentinel lymph node biopsy (SLNB) alone versus axillary lymph node dissection (ALND) for T1-2N1mi breast cancers are heavily weighted with patients who received breast-conserving surgery (BCS). The impact of omitting ALND in N1mi patients treated with mastectomy is not well studied. It is also unknown if these patients would benefit from post-mastectomy radiotherapy (PMRT). This study reports the outcomes of patients with T1-2N1mi breast cancer treated by mastectomy without axillary therapy.
methodsPatients who had T1-2N1mi breast cancer and underwent mastectomy from January 1998 to December 2018 were identified from our multi-institutional prospective database. Axillary recurrence rate (ARR), disease-free survival (DFS), and overall survival (OS) are reported.
results260 patients with pT1-2N1mi breast cancer who had mastectomy were identified. They had either SLNB (35.4%) or ALND (64.6%). Majority of these patients received adjuvant systemic therapy (93.8%). 77 (29.6%) patients received radiotherapy, 31 after SLNB and 46 after ALND. At median follow-up of 61 months, ARR was 1.1% (n = 1) in the SLNB only group, vs. 0.6% (n = 1) in the ALND group (p = 0.752). DFS and OS were not significantly different between patients with SLNB alone versus ALND (p = 0.40 and p = 0.27, respectively). Among 92 patients who had SLNB only, no DFS or OS difference was observed with the use of PMRT.
conclusionIn T1-2N1mi patients with mastectomy and SLNB, axillary recurrences were rare. No statistically significant differences were noted between patients with SLNB, ALND, or PMRT. Our findings suggest that these patients may be safely treated without axillary therapy.
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.