[Mean arterial blood pressure values of complaint-free pregnant women in the first and second trimesters].

Introduction: The cardiovascular system of women adapts to pregnancy to maintain the growth of the fetus. Objective: The aim of this prospective study is to measure the mean arterial pressure of each gestational week. Hemo-dynamical changes in pregnancy are different in every trimester.

Evaluation of placental vascularization indices in monochorionic diamniotic and dichorionic diamniotic twin pregnancies.

Objectives: We aimed to investigate and compare placental vascularization indices between monochorionic-diamniotic, dichorionic-diamniotic normal twin pregnancies, and normal singular pregnancies. We hypothesized that there is correlation between placental three-dimensional power Doppler vascularization indices and birth weight in case of twin pregnancies, and that normal singular pregnancies have higher placental vascularization indices than normal twin pregnancies.

Study Design: Placental three-dimensional power Doppler vascularization indices, such as vascularization index, flow index, and vascularization-flow index were measured in monochorionic-diamniotic (N = 15) and dichorionic-diamniotic (N = 36) normal twin pregnancies, and in normal singular (N = 109) pregnancies.