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Correlation between pre-operative platelets count and serum cancer antigen-125 level in epithelial ovarian carcer

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Original Article

Author Details : Justina Omoikhefe Alegbeleye*, Celestine Osita John

Volume : 11, Issue : 1, Year : 2024

Article Page : 17-23

https://doi.org/10.18231/j.ijogr.2024.004

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Abstract

Background: Cancer antigen 125 (Ca-125) is currently used as an adjunct to ovarian cancer diagnosis, prognosis, and monitoring. Platelet (PLT) count and Ca-125 levels are both prognostic markers in ovarian cancer that are linked to inflammation and immune evasion.
Aim and Objectives: To determine the relationship between pre-operative platelet count and serum Ca-125 level, and their diagnostic accuracy for the prediction of stage IV epithelial ovarian cancer.
Materials and Methods: The study included forty-two women with histologic diagnosis of epithelial ovarian cancer managed at the University of Port Harcourt Teaching Hospital between January 1, 2016, and December 31, 2020. Following informed consent, a data collection form was used to obtain socio-demographic and clinical characteristics. Pretreatment levels of Cancer Antigen 125 (Ca-125) and Platelets count (PLT) were determined from blood samples. The Spearman correlation coefficient was used to determine the relationship between PLT and Ca-125, and the Receiver Operating Characteristic (ROC) curve analysis was used to assess the predictive accuracy of PLT count alone and PLT-Ca-125.
Results: The sample median platelet count was 308 (307) x 10/L and median Ca-125 was 286µ/ml (397). Pre-operative platelets count was significantly associated with Ca-125 (rho= 0.28 p-value = 0.03). Ca-125 had a statistically significant relationship with ovarian cancer histology (X2:19.522; p-value 0.001). PLT-Ca-125 (0.51) and PLT only (0.29) had a statistically significant positive correlation with ovarian cancer stage (p 0.001). Since it had an area under the curve (AUC) greater than 0.7, PLT-Ca-125 can be used as a predictive model to correctly stage patients with epithelial ovarian cancer. Ca-125 level (z:-2.24; p-value = 0.025) was significantly associated with thrombocytosis in ovarian cancer patients.
Conclusion: Platelet count and Ca-125 levels do correlate in blood samples taken from ovarian cancer patients prior to treatment. Furthermore, PLT-Ca-125 levels could be used to predict advanced stage disease.
 

Keywords: Platelets, Ca- 125 level, Predictive value, Ovarian cancer, Nigeria.

How to cite : Alegbeleye J O, John C O, Correlation between pre-operative platelets count and serum cancer antigen-125 level in epithelial ovarian carcer. Indian J Obstet Gynecol Res 2024;11(1):17-23

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