Evidence map›Paper›PMID 34349558›Full record

ArticleCancer management and research2021

Interpectoral Lymph Node Dissection Can Be Spared in pN0/N1 Invasive Breast Cancer Undergoing Modified Radical Mastectomy: Single-Institution Experience from Mainland China.

Yun Yan, Li Jiang, Jianjiang Fang, Yi Dai, Xingzi Chenyu, Jinhua Ding

Open access · goldAbstract read
In one paragraph

Article in Cancer management and research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.1field-weighted citation impact, top 62% 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

2 citing papers in PubMed, 2 citations in OpenAlex.

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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

6 authors at 2 institutions in 1 country.

Yun YanDepartment of Ultrasound, Ningbo Medical Center Lihuili Hospital, Ningbo, Zhejiang, 315000, People's Republic of China.
Li JiangDepartment of General Practice, Ningbo Medical Center Lihuili Hospital, Ningbo, Zhejiang, 315000, People's Republic of China.
Jianjiang FangDepartment of General Practice, Ningbo Medical Center Lihuili Hospital, Ningbo, Zhejiang, 315000, People's Republic of China.
Yi DaiNingbo University School of Medicine, Ningbo, Zhejiang, 315000, People's Republic of China.ORCID 0000-0002-3869-3573
Xingzi ChenyuNingbo University School of Medicine, Ningbo, Zhejiang, 315000, People's Republic of China.
Jinhua DingDepartment of Breast and Thyroid Surgery, Ningbo Medical Center Lihuili Hospital, Ningbo, Zhejiang, 315000, People's Republic of China.
Ningbo Medical Center Lihuili Hospital · CNNingbo University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeInterpectoral lymph nodes (IPNs) are one of the lymphatic drainage pathways in breast cancer. However, the clinical significance of IPN dissection is controversial, and there is no international consensus regarding the management of IPN for resectable breast cancer. Our study aims to identify the independent predictors of IPN metastasis in invasive breast cancer (IBC) and provide some evidence for rational decision-making.

methodsData from 214 IBC patients who were treated with modified radical mastectomy (MRM) plus IPN dissection or biopsy in Ningbo Medical Center Lihuili Hospital were retrospectively reviewed. Univariate analysis and multivariate logistic regression analysis were used to analyse the correlations between IPN occurrence or metastasis and clinicopathological characteristics.

resultsThe occurrence rate of IPN in overall population was 75.2%. Univariate analysis showed that tumour size, involvement of axillary lymph nodes (ALNs), histological grading, Ki67 index and molecular subtype were associated with the occurrence of IPN. However, involvement of ALN was the only independent predictor by multivariate logistic regression analysis. In 161 patients whose IPNs were detected, 46 (28.6%) patients had one or more metastatic IPNs. Univariate analysis showed that tumour size, involvement of ALN, oestrogen receptor status and molecular subtype were associated with IPN metastasis. However, involvement of ALN was the only predictor by multivariate logistic regression analysis. In total, 0%, 5.0%, 26.1% and 84.2% of pN0, pN1, pN2, and pN3 patients had metastatic IPNs, respectively.

conclusionThe relatively low rate of IPN metastasis in patients with pN0/N1 breast cancer suggests that IPN dissection can be safely spared in patients with low tumour burden in axillary lymph nodes (pN0/N1), when MRM even breast conservation surgery is performed.

Indexed as

axillary lymph nodebreast cancerinterpectoral lymph nodemetastasis

Identifiers

PMID34349558
PMCPMC8326277
OpenAlexW3183229727

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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.