Lymph node harvest as a predictor of survival for colon cancer: A systematic review and meta-analysis
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View abstract on PubMed
Summary
This summary is machine-generated.The number of lymph nodes examined impacts cancer survival predictions. While 12 lymph nodes are recommended, lower cut-offs like 7 may also predict survival outcomes, warranting further investigation.
Area Of Science
- Oncology
- Surgical Pathology
- Biostatistics
Background
- Lymph node harvest extent influences metastasis detection and oncologic outcome prediction.
- Current guidelines recommend a minimum of 12 lymph nodes for adequate lymphadenectomy.
- The predictive value of lymph node harvest cut-offs other than 12 remains underexplored.
Purpose Of The Study
- To review existing literature and determine optimal lymph node harvest cut-offs for predicting survival outcomes.
- To evaluate if lymph node harvest cut-offs below the recommended 12 can adequately predict long-term survival.
Main Methods
- Systematic literature search of Medline, Embase, and CENTRAL databases.
- Inclusion of studies comparing overall survival (OS) and disease-free survival (DFS) based on lymph node harvest cut-offs.
- Pairwise meta-analyses using inverse variance random effects for quantitative synthesis.
Main Results
- A lymph node harvest cut-off of 12 was associated with improved five-year OS.
- Cut-offs as low as 7 demonstrated improved five-year OS and DFS.
- All evaluated cut-offs exceeding 12 also showed improved survival outcomes.
Conclusions
- A lymph node cut-off of 12 is significant for predicting five-year oncologic outcomes.
- Lymph node harvests other than 12 lack rigorous study, limiting definitive conclusions.
- Further prospective research is needed to validate the adequacy of cut-offs below 12 for predicting long-term survival.
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