β-hCG levels in second trimester as a predictor of gestational hypertension and preeclampsia
DOI:
https://doi.org/10.18203/2320-1770.ijrcog20220013Keywords:
Human chorionic gonadotrophin, Placenta, Gestational hypertension and preeclampsia, Second trimester pregnancy, Sensitivity and specificityAbstract
Background: Hypertensive disorders of pregnancy complicate up to 10% of pregnancies worldwide, and remain amongst the most significant and intriguing unsolved problems in obstetrics. The goal of this study is to test the hypothesis that women with high serum β-hCG levels in early pregnancy are at higher risk of developing gestational hypertension and preeclampsia.
Methods: This is a prospective study done in 200 women between 13 and 20 weeks of gestation, selected randomly for this study. Serum β-hCG estimation was done by Sandwich chemiluminescence immunoassay method and calculated in multiple of median (MOM). They were followed till delivery for development of gestational hypertension and preeclampsia. Results were analysed statistically.
Results: Out of 200 cases, 43 (21.5%) cases developed PIH. β-hCG levels were considered raised if the levels were >2 MOM. Out of 39 cases with beta HCG levels >2 MOM, 32 (82.1%) developed PIH whereas 7 (17.9%) remain normotensives against. Also, higher levels of beta HCG are associated with increased severity of PIH (p<0.000). The sensitivity was 82%, specificity was 93.2% and positive predictive value was 74.3%.
Conclusions: The study conclude that elevated serum β-hCG levels in women with second trimester pregnancy indicates increased risk of gestational hypertension and preeclampsia and raised β-hCG levels are associated with severity of disease
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References
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