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The objective of this work is: Asses the potential benefit of antioxidant supplementation on the occurrence of preeclampsia at high risk women. Patients and Methods: The number of primigravida women's collected was " 294" with gestational age ranged from 18-22 wks. .from (294) prim gravida cases ,(25) women were identified as being at increased risk of pre-eclampsia by abnormal Doppler wave form in either uterine artery at 18-22 weeks' gestation ( defined as a resistance index < 95th centile for gestation or the presence of an early diastolic notch ) , Another (25) women with history in the preceding pregnancy of pre-eclampsia, eclampsia or HELLP (Hemolysis, elevated liver enzymes, low platelets ) . -Total number of eligible participants were, (50) cases. Design and procedure: Cases divided randomly into two groups each 25 cases one group received tablets of 1000 mg vitamin C, (Cevitil efferecent. EPICO) + 400 iu of vitamin E (E-Viton 400 pharco). Venous blood for measurement of PAI-1 and PAI-2, The primary outcome measure was the ratio PAI-1 / PAI-2 and the secondary outcome prospectively according to guidelines of international society for the study of hypertension in pregnancy. Results: Doppler screening was done on, 294 prim gravidae with gestational age ranged from 18-22 weeks; only 42 women showed abnormal Doppler study so asked to come for rescanning at 24 weeks' gestation. 31 out of 42 patients (75%) have persistent abnormal study. The remainders of the 42 women (25%) were withdrawn from the study at 24 wks.' gestation because they have normal uterine-artery scan. Development of mild preeclampsia was statistically lower (p<0.5) in the study than that in the control group. However, development of sever preeclampsia or superimposed preeclampsia was statistically insignificant between both groups. PAI-1 was significantly increased in women developed preeclampsia more than normotensive (167±71.2, 113.8±35.6ng/ml respectively) with P=0.03 IN contrast PAI-2 was significantly decreased in women developed preeclampsia less than normotensive (105±34.9, 181.1±67.9ng/ml respectively) with P=0.018. Conclusion: Treatment and prevention trials of preeclampsia have been disappointing to date. However, this study has suggested causal links between oxidative stress and the development of preeclampsia indicate that may be a role for antioxidant vitamins in the prevention of preeclampsia. a high-risk population can be successfully identified on the basis of uterine-artery Doppler screening and pervious history of the disease.
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