OBJECTIVE To establish reference range for uterine artery (UtA) Doppler pulsatility index (PI) using transvaginal ultrasound at 20-24w6d of gestation in a Brazilian population. MATERIAL AND METHODS A retrospective cross-sectional study in 847 low-risk pregnant women undergoing routine second trimester ultrasound examination was conducted from February 2012 through March 2015. The mean UtA PI ...

BACKGROUND We hypothesized that ephedrine and phenylephrine are equal with respect to uterine and placental haemodynamics and fetal acid-base status after exposure to maternal hypoxaemia and hypotension in a chronic sheep model of increased placental vascular resistance (R(UA)). METHODS At 114-135 days gestation, chronically instrumented fetal sheep underwent placental embolization leading to...

UTA methods use linear programming techniques for finding additive utility functions that best explain stated preferences. However, most UTA methods including the popular UTA-Star are limited to monotonic preferences. UTA-NM (Non Monotonic) is inspired by UTA Star but allows non-monotonic partial utility functions if they decrease total model error. The shape of the utility functions is determi...

OBJECTIVES To examine whether the maternal serum concentration of the soluble receptor-1 of tumor necrosis factor-alpha (TNF-R1) at 11-13 weeks of gestation in pregnancies that subsequently develop pre-eclampsia is different from that in women without this complication. METHODS The concentration of TNF-R1 at 11 + 0 to 13 + 6 weeks was measured in samples from 128 cases that subsequently devel...

OBJECTIVE To define the contribution of maternal variables that influence the measured uterine artery pulsatility index (UtA-PI) in screening for pregnancy complications. METHODS Maternal characteristics and medical history were recorded, and UtA-PI was measured, in women with a singleton pregnancy attending for three routine hospital visits at 11 + 0 to 13 + 6 weeks, 19 + 0 to 24 + 6 weeks a...

OBJECTIVE To investigate the potential value of uterine artery (UtA) Doppler at 30-34 weeks' gestation in the prediction of adverse perinatal outcome. METHODS This was a screening study in 30 780 singleton pregnancies at 30-34 weeks. UtA pulsatility index (UtA-PI) was measured and the values were converted to multiples of the median (MoM) after adjustment for variables relating to maternal ch...

BACKGROUND Delirium occurs in the intensive care unit and identification is often performed using a validated assessment tool such as the Confusion Assessment Method for Intensive Care Unit (CAM-ICU) patients. The CAM-ICU has three ratings: positive, negative, and unable to assess (UTA). Patients may often be assigned UTA when it is inappropriate given the level of sedation or medical condition...

This paper describes a qualitative methodology for comparing and analyzing classification schemes. Theoretical facets are modeled as concept lattices in the sense of formal concept analysis and are used as 'ground' on which the underlying conceptual facets of a classification scheme are visually represented as 'figures'.

OBJECTIVE To determine whether oral glucose tolerance tests (OGTT) play a role as predictors of preeclampsia (PET) in pregnant women. METHODS A retrospective case-control study was conducted in 2,002 singleton pregnancies that had a uterine artery (UtA) Doppler at 22-25 weeks and an OGTT. The UtA Doppler and OGTT were adjusted based on maternal characteristics, and the results were expressed ...