A scoring system for predicting the risk of breast cancer-related lymphedema.
Fenglian Li, Qian Lu, Sanli Jin and 4 others
PMID 32099855WHAT IT FOUND
A simple score using surgery type, early arm swelling, neoadjuvant chemotherapy, radiotherapy and sudden heavy lifting predicted higher risk of breast cancer-related arm lymphedema.
It is not proven to improve patient care.
Key findings
01The final score included type of breast surgery, type of axillary lymph node surgery, early edema on the affected arm, neoadjuvant chemotherapy, radiotherapy, and using the affected arm to lift or carry heavy objects suddenly.
02The score had an area under the curve of 0.736. At a cut-off of 15.5, it flagged 83.3% of patients with lymphedema and correctly classified 57.3% of patients without lymphedema.
03Among 15 self-reported precautionary behaviors, only using the affected arm to lift or carry heavy objects suddenly was independently associated with lymphedema.
STILL TO COME
How it was doneWhat they foundWhat it means for RNs
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What it does not show
The study was done in one hospital in China and used convenience sampling, so the score may not transfer to other populations or health systems. The design was cross-sectional and some data were collected retrospectively, not by following patients prospectively from surgery. The model was validated only by splitting the same sample, not by testing it in a separate external group. Postoperative duration was not included, but lymphedema risk and symptoms can change over time after surgery. Precautionary behaviors were self-reported, and arm measurements were done by a single researcher, so routine clinical use may differ. The score's reported sensitivity and specificity were not tested against outcomes such as reduced lymphedema severity or earlier successful treatment.
Declared interests
The authors declared no conflicts of interest. The study was supported by a Nursing Research Grant of Peking University Health Science Center.
The easy way to misread this
Do not treat this score as a validated tool that will prevent or reduce lymphedema. It was developed from one hospital's cross-sectional, retrospective data and only split-sample validation, and the paper did not test whether using it changes patient outcomes.