OBJECTIVE The primary objective of this study was to determine if isolated pyelectasis is a risk factor for trisomy 21. STUDY DESIGN Twelve thousand, six hundred and seventy-two unselected singleton fetuses were examined by prenatal ultrasound during the second trimester at a single institution. The sensitivity, specificity, positive predictive value, negative predictive value, and likelihood...

Objective: To determine the usefulness of sonographic screening of the newborn kidneys and urinary tract over a 10-year time period. Methods: Ultrasound screening of the kidneys and the urinary tract was performed between the third and tenth day after birth on 11.887 newborn infants. The classification of renal pyelectasis (RPE) according to the Society for Fetal Urology (SFU) was used. We eval...

OBJECTIVE To analyze the prenatal outcomes in a cohort of fetuses with mild bilateral pyelectasis and determine whether performing serial ultrasounds is a good follow-up strategy. METHODS A prospective longitudinal study was conducted on 62 fetuses with mild bilateral pyelectasis. Fetal mild bilateral pyelectasis was considered when the renal pelvis measured (in millimeters) ≥5.0 to 10.0, ≥7....

OBJECTIVE To describe the sonographic visualization of fetal micturition and its role in the diagnosis of posterior urethral valves and hypospadias. METHODS This was a prospective study of 25 male fetuses (21 with bilateral pyelectasis, one whose bladder was being studied because of ureterocele and three with hypospadias), and five female fetuses (with bilateral pyelectasis). A midline sagitt...

OBJECTIVE The purpose of this study was to compare 2 protocols for the antenatal management of isolated mild fetal pyelectasis and perform a cost analysis. METHODS A retrospective analysis of unilateral and bilateral mild fetal pyelectasis followed at our institution from 2003 to 2006 was conducted. Fetuses with additional congenital anomalies or aneuploidy were excluded. Chi(2) analysis was ...

BACKGROUND Fetal hydronephrosis is the most common anomaly detected on antenatal ultrasound examination, affecting 1-5% pregnancies. AIM A new management in mild antenatal renal pelvis dilatation (ARPD), using a technique based on both morphological and dynamical evaluation. MATERIALS AND METHODS Prospective study conducted during a 36-months period in 180 consecutive newborns referred as h...

OBJECTIVE To determine the threshold of the renal pelvic anteroposterior (AP) diameter that predicts normal postnatal renal outcome in the follow-up of cases with mild pyelectasis. METHODS A retrospective review of our sonography database was conducted over a 3-year period for cases of mild pyelectasis diagnosed between 18 and 30 weeks. Cases were evaluated for the association between differe...

Mid trimester fetal anatomy scan is a fundamental part of routine antenatal care. Some U/S soft markers or controversial U/S signs are seen during the scan and create some confusion regarding their relation to fetal chromosomal abnormalities. Example of these signs: echogenic focus in the heart, echogenic bowel, renal pyelectasis, ventriculomegaly, polydactely, club foot, choroid plexus cyst, s...