Abstract
Background
Pre-eclampsia is often associated with unfavourable feto-maternal outcomes. There is a lacuna in its pathophysiology, which emphasizes the need to research for tests, which can predict or correlate with the severity of pre-eclampsia. Cancer antigen-125 (CA-125) is a simple, readily available biomarker with evidence of its secretion at the choriodecidual unit and may have a possible role. This study compared serum CA-125 levels between normal pregnant and pre-eclamptic women and determined its clinical usefulness in correlating with the severity of pre-eclampsia.
Methods
A case–control study was conducted enrolling 58 women with pre-eclampsia further divided into severe and non-severe groups and 62 gestational age-matched healthy, pregnant controls. Serum CA-125 levels were compared between the two groups.
Results
The mean serum CA-125 in the controls was 16.44 ± 8.28 IU/ml, 13.82 ± 9.18 IU/ml in the non-severe and 23.55 ± 30.55 IU/ml in the severe pre-eclampsia group (p = 0.134). Serum CA-125 had a significant association with systolic blood pressure (SBP) p = 0.002), diastolic blood pressure (DBP) (p = 0.026), foetal growth restriction (p = 0.025), pre-term birth (p = 0.039) and a highly significant association with 24-h urinary protein, liver enzymes, placental abruption, need of maternal intensive care as well as with poor neonatal outcome including stillbirth and neonatal mortality (p < 0.001).
Conclusion
Serum CA-125 levels were found to be higher in the severe pre-eclampsia group as compared to non-severe pre-eclampsia and normotensive group, but the difference was not statistically significant. More studies on a larger scale are required to prove the usefulness of this marker with respect to maternal and perinatal outcome as well as its association with pre-eclampsia and its severity.
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Acknowledgements
Authors would like to thank the Department of Obstetrics and Gynaecology and the Department of Biochemistry, Government Medical College and Hospital, Chandigarh, for giving support in conducting this study.
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Approved by the Institutional Ethics Core Committee. The study was conducted among the patients diagnosed with pre-eclampsia at any period of gestation visiting the outpatient department, admitted in antenatal ward or referred to the emergency ward of Department of Obstetrics and Gynaecology of Government Medical College and Hospital, Chandigarh. It was conducted on ethical guidelines for biomedical research on human subjects as given in the Declaration of Helsinki and the Central Ethics Committee on Human Research (CEHER) of ICMR, New Delhi.
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The purpose of the study was explained to all the potential participants, and a written and informed consent was taken from all the patients. Samples were collected from subjects who gave their consent for inclusion in the study at no cost to the participants. They were given the right to opt out of the study at any time with no impact on the treatment to be given. All information including history, physical and laboratory findings obtained from the participants was kept strictly confidential.
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Dr. Pooja Bhatia is a Senior Resident; Dr. Poonam Goel is a Professor and Head; Dr. Reeti Mehra is a Professor; Dr. Sunita Dubey is an Associate Professor; Dr. Seema Gupta is an Associate Professor.
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Bhatia, P., Goel, P., Mehra, R. et al. Correlation of Serum Cancer Antigen-125 (CA-125) Levels with Severity of Pre-eclampsia. J Obstet Gynecol India 73 (Suppl 2), 240–246 (2023). https://doi.org/10.1007/s13224-023-01869-2
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DOI: https://doi.org/10.1007/s13224-023-01869-2