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Journal Article
Lymph node retrieval colon cancer: Are we making the grade?
2023
Overview
Adequate lymph node (LN) excision is imperative for pathologic staging and determination of adjuvant treatment.
he 2004–2017 National Cancer Database (NCDB) was queried for curative colon cancer resections. Tumors were categorized by location: left, right, and transverse colon cancers. Adequate (12–20 LNs) vs. inadequate (<12 LNs) lymphadenectomy was examined and sub-analysis of <12 LNs, 12–20 LNs or >20 LNs. Primary outcome was predictors of inadequate lymph node retrieval.
Of 101,551 patients, 11.2% (11,439) had inadequate lymphadenectomy. The inadequate lymphadenectomy rate steadily decreased. On multivariable analysis, inadequate LN retrieval was associated with transverse (OR 1.49, CI [1.30–1.71]) and left colon cancers (OR 2.66, CI [2.42–2.93], whereas income >$63,333 had decreased likelihood of inadequate LN retrieval (OR 0.68, CI[0.56–0.82].
We are making the grade as NCDB data demonstrates a steady decrease in inadequate lymphadenectomy (2004–2017). There remain socioeconomic risk factors for inadequate lymphadenectomy that need to be addressed.
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•Adequate lymphadenectomy for colon cancer resections has steadily increased.•Patients with >20 lymph nodes retrieved had optimal 5 year overall survival.•There are socioeconomic variables that predict inadequate lymph node retrieval.
