Blood urea nitrogen/creatinine index is a predictor of prerenal damage in preeclampsia

Abstract

Introduction: Preeclampsia is a disease whose etiology is not very clearly explained. The aim of this study was to investigate the importance of blood urea nitrogen (BUN)/creatinine ratio in diagnosing preeclampsia
and evaluating prognosis.
Methods: The patients in this research were examined and diagnosed in the Department of Obstetrics and Gynecology, University Clinical Centre of Kosovo. Control group included 25 pregnant women with a normal
blood pressure and with a gestational age of more than 20 weeks, whereas the investigation group included 25 women diagnosed with preeclampsia. The patients were not administered therapy four days before the examination. For the determination of biochemical parameters we used end point bichromatic enzymatic rate and enzymatic conductivity rate.
Results: BUN/Creatinine index in the preeclamptic group was 19±7.7, uric acid 280±70 μmol/L, lactate dehydrogenase
198±63 U/L, while the number of platelets was 195±5061 x 109/L. In control group BUN/Creatinine index was 12±3, lactate dehydrogenase was 165±57 U/L, uric acid 197±79 μmol/La and the platelet number
was 243±61 x109/L. Albumin/Globulin index in the preeclamptic group was 0.8±0.12, whereas in the control group it was 0.9±0.16.
Conclusions: BUN/Creatinine ratio in pregnant women with preeclampsia was significantly increased (t=-4.14; p=0.00013) in comparison to the control group. It indicates the prerenal source of azotemia. This index
can be important for the evaluation of preeclampsia severity.