Fetal urinary tract dilation: What to tell the parents.

Urinary tract dilation (UTD), which refers to the abnormal dilation of the urinary collection system, is the most common finding on prenatal ultrasound and presents with varying severity, presentation, etiology, and prognosis. Prenatal classification and risk stratification aim to prevent postnatal complications, such as urinary tract infections and further kidney dysfunction. Parents expecting a child with UTD should be counseled by a multidisciplinary team consisting of maternal-fetal medicine specialists, and pediatric urology and nephrology providers. This review summarizes the key points in the diagnostic evaluation and management during the prenatal and initial postnatal period, focusing on the information that should be provided to future parents. We address frequently asked parental questions and concerns that our multidisciplinary clinical practice faces.

Comparison of circulating maternal placenta growth factor levels and sonographic evaluation of patients with abnormal first trimester screening analytes.

OBJECTIVE: To evaluate the role of mid-trimester placental growth factor (PlGF) in patients with abnormal circulating levels of first-trimester biomarkers. METHODS: Retrospective cohort study including singleton pregnancies complicated by abnormal first-trimester biomarkers (2017-2020). Pregnancies complicated with chromosomal/structural anomalies were excluded. All patients had ultrasound imaging including uterine artery Doppler combined with measurement of maternal circulating PlGF. Sonographic findings, maternal and perinatal outcomes, and placental histopathology were compared between pregnancies with normal and low (<10th percentile for gestational age) PlGF levels. The diagnostic accuracy of PlGF for the prediction of specific placental-mediated complications was compared with the uterine artery Doppler assessment and additional sonographic findings. RESULTS: Seventy-one pregnancies were assessed, of which 35 (49.3%) had low PlGF levels. Maternal sociodemographic characteristics, nulliparity, and aspirin consumption were comparable. In comparison with patients with normal PlGF levels, individuals with low PlGF levels had a higher rate of fetal growth restriction (EFW <3rd centile; 42.9% vs. 8.3%, p = 0.001), preterm-preeclampsia (22.9% vs. 0%, p = 0.002), preterm delivery <34 weeks (54.3% vs. 8.3%, p < 0.001) and maternal vascular malperfusion placental pathology (72.7% vs. 21.7%, p < 0.001) following delivery. Adjusting for uterine artery Doppler and fetal biometry status, mid-trimester low PlGF remained significantly associated with these placental-mediated complications. The predictive capacity of PlGF outperformed ultrasound imaging with only minimal diagnostic improvement when ultrasound information was combined with PlGF status. CONCLUSION: In pregnancies with unexplained abnormal first-trimester biomarkers, mid-trimester PlGF outperformed a comprehensive ultrasound assessment in the identification of a subset of patients destined to develop placental dysfunction. This blood test may be an alternative initial approach in this context, especially where access to specialist care is more geographically challenging.

Web-based education for placental complications of pregnancy.

OBJECTIVE: The objective of this study was to determine whether a web-based education strategy could improve maternal knowledge of placental complications of pregnancy and reduce maternal anxiety in high risk-pregnancies. METHODS: Prospective study in the Placenta Clinic at Mount Sinai Hospital, Toronto, Ontario. Maternal demographics and Internet usage were recorded at the patient's baseline appointment. Placental knowledge was determined using structured verbal and illustrative assessments. The six-item State-Trait Anxiety Inventory (STAI) was administered to assess baseline maternal anxiety. Women were asked to visit the Placenta Clinic website for a minimum of 15 minutes before their follow-up appointment, at which time their placental knowledge and STAI assessments were repeated. RESULTS: Eighteen women were included in the study. Patient knowledge at the baseline appointment was generally poor (median score 10.5 out of a maximum score of 27, range 1 to 22), with major deficits in basic placental knowledge, placenta previa/increta, and preeclampsia. At the follow-up appointment, placental knowledge was significantly improved (median score 23, range 10 to 27; P < 0.001). Educational status (high school or less vs. college or more) had no effect on either baseline knowledge or knowledge improvement. Maternal anxiety at baseline (median score 12 out of a maximum score of 24, range 6 to 23) was significantly reduced at the follow-up appointment (median score 8.5, range 6 to 20; P = 0.005). CONCLUSION: Deficits in maternal knowledge of placental complications of pregnancy in high-risk pregnant women were substantial but easily rectified with a disease-targeted web-based educational resource. This intervention significantly improved patient knowledge and significantly reduced maternal anxiety.

Objectif : Cette étude avait pour objectif de déterminer si une stratégie pédagogique sur le Web pouvait améliorer les connaissances maternelles en matière de complications placentaires de la grossesse et atténuer l'anxiété maternelle dans le cadre des grossesses exposées à des risques élevés. Méthodes : Tenue d'une étude prospective au sein de la Placenta Clinic du Mount Sinai Hospital à Toronto, en Ontario. Les habitudes d'utilisation d'Internet et les caractéristiques démographiques maternelles ont été consignées au cours de la consultation de départ avec la patiente. Les connaissances quant au placenta ont été déterminées au moyen d'évaluations illustrées et verbales structurées. Le six-item State-Trait Anxiety Inventory (STAI) a été administré pour évaluer l'anxiété maternelle de départ. Nous avons demandé aux femmes de consulter le site Web de la Placenta Clinic pendant un minimum de 15 minutes avant leur consultation de suivi; au cours de celle-ci, leurs connaissances quant au placenta ont été évaluées à nouveau et les évaluations STAI ont été menées une fois de plus. Résultats : Dix-huit femmes ont participé à l'étude. Au moment de la consultation de départ, les connaissances des patientes étaient généralement faibles (score médian de 10,5 sur un score maximal de 27, plage de 1 à 22), des déficits majeurs ayant été constatés en matière de connaissances de base quant au placenta, au placenta prævia/increta et à la prééclampsie. Au moment de la consultation de suivi, les connaissances quant au placenta présentaient une amélioration considérablement accrue (score médian de 23, plage de 10 à 27; P < 0,001). Le niveau de scolarité (études secondaires ou moins vs études postsecondaires ou plus) n'a exercé aucun effet sur l'état des connaissances au départ ni sur l'amélioration des connaissances. L'anxiété maternelle au départ (score médian de 12 sur un score maximal de 24, plage de 6 à 23) avait connu une baisse considérable au moment de la consultation de suivi (score médian de 8,5, plage de 6 à 20; P = 0,005). Conclusion : Les déficits en matière de connaissances maternelles quant aux complications placentaires de la grossesse chez les femmes enceintes exposées à des risques élevés étaient substantiels, mais facilement corrigeables au moyen d'une ressource pédagogique sur le Web axée sur la maladie. Cette intervention a mené à une amélioration significative des connaissances des patientes et à une baisse considérable de l'anxiété maternelle.