Sökning: "umbilical vein"

Visar resultat 1 - 5 av 40 avhandlingar innehållade orden umbilical vein.

  1. 1. Ultrasound as predictor of perinatal outcome

    Författare :Gisela Ghosh; gynekologisk och prenatal ultraljudsdiagnostik Obstetrisk; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Doppler; Ultrasound; fetus; amniotic fluid index; nuchal cord; uterine artery; umbilical vein; fetal growth restriction; umbilical artery; pulsation; pregnancy;

    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. 2. Fetal Cardiac Function and Venous Circulation - Experiences with Velocity Vector Imaging

    Författare :Charlotte Dahlbäck; Urogynekologi och reproduktionsfarmakologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; pregnancy; fetus; strain; speckle tracking; cardiac function; umbilical vein; venous; ductus venosus; Doppler;

    Sammanfattning : Placental dysfunction resulting in intrauterine growth restriction (IUGR) is a common complication of pregnany and severe IUGR, with ensuing fetal hypoxia is an important cause of perinatal mortality and morbidity. Doppler studies of fetal and maternal vessels are routinely used for fetal surveillance and alterations in fetal venous blood flow has been demonstrated as a late sign of fetal compromise. LÄS MER

  3. 3. Role of cerebral Blood Flow in Fetal Surveillance

    Författare :Riffat Cheema; Urogynekologi och reproduktionsfarmakologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES;

    Sammanfattning : ABSTRACT In high-risk pregnancies the chronic hypoxemic fetus redistributes its circulation to maintain the blood supply to the vital organs: brain, heart and adrenals. The aims of the studies included in this thesis were: 1) to establish reference curves for fetal cerebral venous blood velocity in normal pregnancies; 2) to determine in high-risk pregnancies the frequency of abnormal Doppler in the cerebral veins and uterine, umbilical and middle cerebral arteries and the umbilical vein and ductus venosus with correlation with adverse perinatal outcome; 3) to analyze the correlation between brain sparing and redistribution of circulation and placental vascular impedance; 4) to evaluate the correlation between brain sparing and fetal umbilical cord blood gases at birth. LÄS MER

  4. 4. Endothelin and endothelin receptors in human pregnancy and delivery

    Författare :Kerstin Wolff; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; Endothelin; endothelin receptor; human; pregnancy; preeclampsia; delivery;

    Sammanfattning : From the Division of Clinical Science, Department of Obstetrics and Gynecology, Karolinska Institute, Huddinge University Hospital, Stockholm, Sweden. Endothelin and Endothelin-Receptors in Human Pregnancy and Delivery Kerstin Wolff Background: Endothelin -1 (ET-1) is a 21-amino acid peptide, first described by Yanagisawa et al in 1988. LÄS MER

  5. 5. Studies on the cultured human endothelial cell with special regard to clinical applicability

    Författare :Caroline Gillis-Hægerstrand; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP;

    Sammanfattning : The improvement of cardiovascular prosthetic materials, to reducethrombus formation and inflammatory/immunological reactions, is a clinicalchallenge. Endothelial cell (EC) seeding using autologous cells to line the luminalsurface of prosthetic materials has been suggested. LÄS MER