Sökning: "Umbilical cord artery"
Visar resultat 1 - 5 av 8 avhandlingar innehållade orden Umbilical cord artery.
1. Ultrasound as predictor of perinatal outcome
Sammanfattning : The aim of the work described in this thesis was to evaluate the value of ultrasound examinations of the amniotic fluid, umbilical cord and blood flow velocity waveform of the fetal and placental vessels as predictors of the perinatal outcome. In the first study, the amniotic fluid index (AFI) measured on admission to the labour ward was evaluated in low-risk pregnancies. LÄS MER
2. Effects of Delayed versus Early Cord Clamping on Healthy Term Infants
Sammanfattning : The aim of this thesis was to study maternal and infant effects of delayed cord clamping (≥180 seconds, DCC) compared to early (≤10 seconds, ECC) in a randomised controlled trial. Practice and guidelines regarding when to clamp the cord vary globally, and different meta-analyses have shown contradictory conclusions on benefits and disadvantages of DCC and ECC. LÄS MER
3. Unusual vascular responses in the umbilical artery, mediated by endothelin-like receptors
Sammanfattning : In this present study the population of endothelin-like receptors in the human umbilical artery was examined in vitro in different parts of the umbilical cord. Immunohistochemistry revealed ETB receptors in the endothelium and an uneven distribution of ETA receptors in the smooth muscle of the arterial wall, when comparing different parts of the umbilical artery. LÄS MER
4. Studies on Prostanoid Production in the Umbilicoplacental Circulation
Sammanfattning : The fetoplacental circulation is a low pressure system with a high vascular prostacyclin to thromboxane (Pc/Tx)synthesis ratio. In intrauterin growth restriction (IUGR) and diabetes the prostanoid balance may be altered. LÄS MER
5. Fetal surveillance and outcome in postterm pregnancy
Sammanfattning : To minimize the risk of short-term and long-term morbidity and mortality among children born postterm, studies were performed to evaluate the fetal surveillance program. (1) Male-fetus pregnancies were at an increased risk... LÄS MER