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538 results on '"Kiserud T"'

2. IFPA Meeting 2011 workshop report II: Angiogenic signaling and regulation of fetal endothelial function; placental and fetal circulation and growth; spiral artery remodeling

Author

Bulmer, J.N., Burton, G.J., Collins, S., Cotechini, T., Crocker, I.P., Croy, B.A., Cvitic, S., Desforges, M., Deshpande, R., Gasperowicz, M., Groten, T., Haugen, G., Hiden, U., Host, A.J., Jirkovská, M., Kiserud, T., König, J., Leach, L., Murthi, P., Pijnenborg, R., Sadekova, O.N., Salafia, C.M., Schlabritz-Loutsevitch, N., Stanek, J., Wallace, A.E., Westermeier, F., Zhang, J., and Lash, G.E.

Published
2012
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4. Clinical Opinion: The diagnosis and management of suspected fetal growth restriction: an evidence-based approach

Author

Lees C, Romero R, Stampalija T, Dall'asta A, DeVore G, Prefumo F, Frusca T, Visser GHA, Hobbins J, Baschat A, Bilardo CM, Galan H, Campbell S, Maulik D, Figueras-Retuerta F, Lee W, Unterscheider J, Valensise H, Da Silva Costa F, Salomon L, Poon L, Ferrazzi E, Mari GC, Rizzo G, Kingdom J, Kiserud T, Hecher K, Lees, Christoph C, Romero, Roberto, Stampalija, Tamara, Dall'Asta, Andrea, Devore, Greggory A, Prefumo, Federico, Frusca, Tiziana, Visser, Gerard H A, Hobbins, John C, Baschat, Ahmet A, Bilardo, Caterina M, Galan, Henry L, Campbell, Stuart, Maulik, Dev, Figueras, Francesc, Lee, Wesley, Unterscheider, Julia, Valensise, Herbert, Da Silva Costa, Fabricio, Salomon, Laurent J, Poon, Liona C, Ferrazzi, Enrico, Mari, Giancarlo, Rizzo, Giuseppe, Kingdom, John C, Kiserud, Torvid, and Hecher, Kurt

Subjects
Trial of Umbilical and Fetal Flow in Europe, Prospective Observational Trial to Optimize Pediatric Health, Placenta, randomized controlled trial, fetal biometry, Disproportionate Intrauterine Growth Intervention Trial at Term, abdominal circumference, Umbilical Arteries, small for gestational age, systematic review, Pregnancy, Prenatal, Ultrasonography, Randomized Controlled Trials as Topic, short-term variation, fetal death, Fetal Growth Retardation, Doppler, neurodevelopmental outcome, fetal distress, umbilical artery pH, Fetal Weight, Settore MED/40, embryonic structures, uterine artery, Female, cardiotocography, Human, cesarean delivery, Doppler velocimetry, ductus venosus, fetal growth, longitudinal, middle cerebral artery, umbilical artery Doppler, ductus venosu, Gestational Age, Article, Ultrasonography, Prenatal, Humans, Obstetrics & Reproductive Medicine, Infant, Ultrasonography, Doppler, fetal distre, Umbilical Arterie, 1114 Paediatrics and Reproductive Medicine
Abstract

This study reviewed the literature about the diagnosis, antepartum surveillance, and time of delivery of fetuses suspected to be small for gestational age or growth restricted. Several guidelines have been issued by major professional organizations, including the International Society of Ultrasound in Obstetrics and Gynecology and the Society for Maternal-Fetal Medicine. The differences in recommendations, in particular about Doppler velocimetry of the ductus venosus and middle cerebral artery, have created confusion among clinicians, and this review has intended to clarify and highlight the available evidence that is pertinent to clinical management. A fetus who is small for gestational age is frequently defined as one with an estimated fetal weight of

Published
2022

7. ISUOG Practice Guidelines (updated): use of Doppler velocimetry in obstetrics

Author

Bhide, A., primary, Acharya, G., additional, Baschat, A., additional, Bilardo, C. M., additional, Brezinka, C., additional, Cafici, D., additional, Ebbing, C., additional, Hernandez‐Andrade, E., additional, Kalache, K., additional, Kingdom, J., additional, Kiserud, T., additional, Kumar, S., additional, Lee, W., additional, Lees, C., additional, Leung, K. Y., additional, Malinger, G., additional, Mari, G., additional, Prefumo, F., additional, Sepulveda, W., additional, and Trudinger, B., additional

Published
2021
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18. Reply

Author

Acharya, G., primary, Ebbing, C., additional, Karlsen, H. O., additional, Kiserud, T., additional, and Rasmussen, S., additional

Published
2020
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29. Simulation of pressure drop and energy dissipation for blood flow in a human fetal bifurcation

Author

Hellevik, L.R., Kiserud, T., Irgens, F., Ytrehus, T., and Eik-Nes, S.H.

Subjects
Blood flow -- Research, Fetus -- Physiological aspects, Hemodynamics -- Research, Energy dissipation -- Analysis, Blood pressure -- Analysis, Engineering and manufacturing industries, Science and technology
Abstract

The pressure drop from the umbilical vein to the heart plays a vital part in human fetal circulation. The bulk of the pressure drop is believed to take place at the inlet of the ductus venosus, a short narrow branch of the umbilical vein. In this study a generalized Bernoulli formulation was deduced to estimate this pressure drop. The model contains an energy dissipation term and flow-scaled velocities and pressures. The flow-scaled variables are related to their corresponding spatial mean velocities and pressures by certain shape factors. Further, based on physiological measurements, we established a simplified, rigid-walled, three-dimensional computational model of the umbilical vein and ductus venosus bifurcation for stationary flow conditions. Simulations were carried out for Reynolds numbers and umbilical vein curvature ratios in their respective physiological ranges. The shape factors in the Bernoulli formulation were then estimated for our computational models. They showed no significant Reynolds number or curvature ratio dependency. Further, the energy dissipation in our models was estimated to constitute 24 to 31 percent of the pressure drop, depending on the Reynolds number and the curvature ratio. The energy dissipation should therefore be taken into account in pressure drop estimates.

Published
1998

48. OP05.04: Longitudinal reference range for the pulsatility index of fetal inferior adrenal arteries.

Author

Bergøy, Ø., Kiserud, T., Dalen, I., Kessler, J., and Sande, R.K.

Subjects
*FETAL growth retardation, *FLOW velocity, *BLOOD flow, *QUANTILE regression, *ADRENAL glands
Abstract

This article, published in the journal Ultrasound in Obstetrics & Gynecology, discusses a study conducted at Stavanger University Hospital from June 2020 to May 2023. The study aimed to establish longitudinal reference ranges for the pulsatility index (PI) of the fetal inferior adrenal artery using a new ultrasound technique. The researchers enrolled 150 participants with low-risk singleton pregnancies and conducted sonographic examinations every 4-6 weeks from 19 weeks gestation until delivery. The study found that the longitudinal reference ranges for the fetal inferior adrenal artery PI could potentially be used as a tool for improved monitoring of fetal growth restriction. [Extracted from the article]

Published
2024
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