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Maternal serum endoglin as an early marker of pre-eclampsia in high-risk patients
Authors Elhawary TM, Elbendary, Demerdash
Received 24 June 2012
Accepted for publication 8 August 2012
Published 26 September 2012 Volume 2012:4 Pages 521—525
Checked for plagiarism Yes
Review by Single anonymous peer review
Peer reviewer comments 4
Tarek M Elhawary,1 Aml S El-Bendary,2 Hala Demerdash3
1Department of Obstetrics and Gynecology and Department of Clinical Pathology, 2Faculty of Medicine, Tanta University, Tanta, 3Alexandria Main University Hospital, Alexandria, Egypt
Background: Pre-eclampsia is a potentially serious condition that still accounts for significant morbidity and mortality for the affected mother and neonate. Although the pathogenesis is not fully understood, it is now widely accepted that vascular endothelial dysfunction is the most important and principal event in the pathophysiology of the disease. The aims of our study were to compare serum soluble endoglin levels at week 13 in normotensive pregnant women and in high-risk women, to determine whether the maternal plasma soluble endoglin concentration at 26 weeks is increased in pregnancies that subsequently develop pre-eclampsia, and to identify if soluble endoglin measurement improves the results of screening for pre-eclampsia.
Methods: This work was conducted in 60 healthy pregnant controls and 110 pregnant women at high risk for pre-eclampsia. Gestational age was confirmed by date of last menstrual period and first trimester ultrasound. The time of onset of pre-eclampsia was defined as the time of first elevated blood pressure or urinary protein measurement leading to the diagnosis. Blood samples were collected for measurement of soluble endoglin and other routine laboratory tests, including measurement of urinary proteins. Serum soluble endoglin was estimated by sandwich enzyme-linked immunosorbent assay.
Results: There was a highly significant increase in serum soluble endoglin in high-risk women compared with controls at week 13 (P < 0.001). Further determination of soluble endoglin revealed a more significant increase in women who developed early-onset pre-eclampsia compared with those who developed late-onset pre-eclampsia. Moreover, a significant positive correlation was found between soluble endoglin and both diastolic blood pressure and total urinary protein, ie, severity of pre-eclampsia.
Conclusion: Estimation of serum soluble endoglin at gestational week 13 could be used as a sensitive screening test for women at high risk of developing pre-eclampsia prior to onset of its clinical manifestations, which could potentially improve the outcome of pregnancy.
Keywords: pregnancy, pre-eclampsia, high risk, gestational age, endoglin
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