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Association between Pretreatment Levels of Serum Vascular Endothelial Growth Factor (VEGF) and Survival Outcomes in Locally Advanced Cervical Cancer Patients

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DOI: 10.4236/jct.2013.410178    3,005 Downloads   3,896 Views  

ABSTRACT

Objective: To evaluate the association between pretreatment levels of serum vascular endothelial growth factor (VEGF) and long-term treatment outcomes in patients with locally advanced cervical cancer (LACC). Methods: Thirty-nine patients diagnosed with LACC (stage IIB-IVA) and obtaining blood for serum VEGF were identified. All patients received complete treatment as radical radiotherapy with or without concurrent chemotherapy. Surveillance for all patients was every 3 months during the first 2 years, and every 6 months later. Results: Mean age of 39 patients was 52.3 ± 10.8 years old. Twenty-three patients (59.0%) had stage IIB, and 16 patients (41.0%) had stage IIIB. Histological cell type was mostly squamous cell carcinoma (89.7%). The median and 75th percentile level of serum VEGF were 610.2 pg/ml (0.0 - 4067.2 pg/ml) and 825.6 pg/ml, respectively. At median follow-up of 37.0 months (range, 26.8 - 46.3 months), the 3-year OS rate was 78.6%. Clinical stage (p = 0.04) and 75th percentile of VEGF level (p = 0.04) were impacted on OS in univariable analysis. The 3-year OS of patients in stage IIB with serum VEGF of ≤825.6 pg/ml and of > 825.6 pg/ml was slightly different, 94.4% and 80.0% respectively (p = 0.34), whereas there were many differences in stage IIIB, 71.4% and 25.0% in patients with serum VEGF of 825.6 pg/ml and of >825.6 pg/ml respectively (p = 0.05). Conclusion: High pretreatment serum VEGF level has an influence on OS for LACC. It is potentially used as a predictive factor, especially in patients stage IIIB, in order to provide efficient treatment and improve survival outcomes in the future.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

K. Katanyoo, K. Rongsriyam and M. Chongtanakon, "Association between Pretreatment Levels of Serum Vascular Endothelial Growth Factor (VEGF) and Survival Outcomes in Locally Advanced Cervical Cancer Patients," Journal of Cancer Therapy, Vol. 4 No. 10, 2013, pp. 1478-1484. doi: 10.4236/jct.2013.410178.

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