Browsing by Author "Mikovic, Z. (7801694296)"

The purpose of this investigation was to evaluate changes in maternal renal arterial blood flow during pregnancy. Materials and Methods: The study included 40 non-pregnant, 200 pregnant, and 30 women after delivery. The authors measured pulsatility index (Pi) and resistance index (Ri) in the right and left renal arteries in the hilus. The authors compared the values between non-pregnant and women during first, second, and third trimester and post-partum period and tested correlation with gestational age. Results: The authors did not find a statistical difference in Pi and Ri between the right and left kidneys. There was no difference in Pi and Ri in pregnancy trimester compared to the non-pregnant state. There was no correlation between the values of Pi and Pi and gestational weeks. Conclusion: During pregnancy there are no changes in the values of maternal renal Pi and renal Ri. Unchanged total vascular resistance may result from physiological changes of the glomerular filtration rate.

Purpose of investigation: The objective of this study was to predict preeclampsia using extreme-low first-trimester pregnancy-associated- plasma-protein-A-(PAPP-A), extreme-low free-beta-human-chorionic-gonadotropin-(free-βhCG)-levels, and extreme-high pulsatility- index (PI) of uterine arteries, as single and combined predictors for preeclampsia development in resource-limited-settings. Materials and Methods: First-trimester screening for PAPP A, free-βhCG, and PI was performed between 11-13 +6 gestation-weeks in nulliparous, normotensive women with singleton pregnancy with extremely-low PAPP-A (PAPP-A ≤ 0.52 MoM), extremely-low free- βhCG (free-βhCG ≤ 0.56 MoM) and extremely-high PI (≥ 2.52). Results: Of 85 pregnant women, 14 (16.5%) developed preeclampsia. PAPP-A ≤ 0.52 MoM and PI ≥ 2.52, as a single categorical variables, found to be with high OR for preeclampsia-development (OR = 7.07, 95% CI = 0.873-57.204, p = 0.067; OR = 5.098, 95% CI = 0.625-41.575, p = 0.128, respectively). The ROC-curve identified PAPP-A and PI as continuous variables to be significant predictors of preeclampsia (AUC = 0.864, 95% CI = 0.750-0.978, p = 0.000; AUC = 0.762, 95% CI = 0.598-0.925, p = 0.002, respectively). A prediction model for preeclampsia including PAPP-A ≤ 0.52 MoM + PI ≥ 2.52 was found to be significantly associated with preeclampsia (p = 0.027). Conclusion: The present study suggests that the firsttrimester extreme low-PAPP-A and increased Doppler-PI levels have significant predictive capability for preeclampsia.