Microvessel Density and VEGF Expression in Colorectal Cancer
Author Information
Author(s): Des Guetz G, Uzzan B, Nicolas P, Cucherat M, Morere J-F, Benamouzig R, Breau J-L, Perret G-Y
Primary Institution: APHP. Department of Oncology, Hôpital Avicenne, France
Hypothesis
Does microvessel density (MVD) or VEGF expression predict overall survival and relapse-free survival in colorectal cancer patients?
Conclusion
High microvessel density and VEGF expression are significant predictors of poor survival in colorectal cancer patients.
Supporting Evidence
- High MVD significantly predicted poor relapse-free survival (RR=2.32; P<0.001).
- High MVD also predicted poor overall survival (RR=1.44; P=0.01).
- High VEGF expression significantly predicted poor relapse-free survival (RR=2.84; P<0.001).
- High VEGF expression also predicted poor overall survival (RR=1.65; P<0.001).
Takeaway
This study found that higher levels of blood vessel growth in tumors can mean a higher chance of cancer coming back or being fatal.
Methodology
A meta-analysis of 45 studies on microvessel density and 27 studies on VEGF expression related to survival outcomes in colorectal cancer.
Potential Biases
Potential publication bias and variability in study methodologies could affect the results.
Limitations
The study relies on retrospective observational data, which may have inherent biases and variability.
Participant Demographics
The studies included 3496 patients for MVD (mean age 64.7 years, 1740 male, 1400 female) and 2050 patients for VEGF (mean age 63.3 years, 1041 male, 750 female).
Statistical Information
P-Value
P<0.001
Confidence Interval
95% CI: 1.39–3.90 for MVD; 95% CI: 1.95–4.16 for VEGF
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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