Sökning: "vasoconstriction"

Visar resultat 16 - 20 av 100 avhandlingar innehållade ordet vasoconstriction.

  1. 16. The Effect of CO2-Pneumoperitoneum on Ventilation Perfusion Distribution of the Lung

    Författare :Christof Strang; Göran Hedenstierna; Suzanne Odeberg-Wernerman; Uppsala universitet; []
    Nyckelord :lung; atelectasis; computed tomography; multiple inert gas elimination technique; model; pig; Pa–ECO2 ratio; surgery; laparoscopy; lung; blood flow; single photon emission computed tomography; ventilation perfusion distribution; gas exchange; hypoxic pulmonary vasoconstriction; MEDICINE; MEDICIN;

    Sammanfattning : Laparoscopic operations are a common and popular way for abdominal procedures. They are usually performed by insufflation of carbon dioxide (CO2) into the abdominal cavity. However, insufflation of CO2 may interfere with cardiac and circulatory as well as respiratory functions. The CO2-pneumoperitoneum (PP) may cause hypercarbia and acidosis. LÄS MER

  2. 17. Growth factors and vasoactive substances in intrauterine growth restriction and preeclampsia

    Författare :Eva Östlund; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; Cordocentesis; IUGR; preeclampsia; prediction; IGF-I; IGFBP- 1; TGF-beta 1; blood gases; hypoxia; vasoconstriction; endothelin; erythropoietin; fibronectin; placenta.;

    Sammanfattning : Fetal growth restriction (FGR) is, next to prematurity, the second leading cause of perinatal morbidity and mortality. To reduce perinatal morbidity and mortality it is important to identify such fetuses in utero in order to monitor their development, and to determine the most optimal time for delivery. LÄS MER

  3. 18. Aspects on menstrual physiology, pathology and medical treatment of menorrhagia

    Författare :Måns Edlund; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; Menstruation; endometrium; coiled arteries; endothelin; vasoconstriction; progesterone withdrawal; menorrhagia; bleeding disorder; von Willebrand Disease; fibrinolysis; tranexamic acid; desmopressin; platelet dysfunction; thrombin.;

    Sammanfattning : Menstruation is the monthly process by which the endometrium in fertile women is discarded if no pregnancy occurs. The physiology and pathology of menstruation has been extensively studied; still several steps are not fully understood. Menorrhagia, heavy regular menstrual bleeding, is a gynaecological symptom of disease. LÄS MER

  4. 19. Mean systemic filling pressure - from Guyton to the ICU, and back again

    Författare :Per Werner Möller; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; mean systemic filling pressure; venous return; right atrial pressure; positive pressure ventilation; extracorporeal membrane oxygenation;

    Sammanfattning : Introduction: Mean systemic filling pressure (MSFP) is the equilibrated vascular pressure at zero flow. Venous return (VR) driving pressure (VRdP) is the difference between MSFP and right atrial pressure (RAP). LÄS MER

  5. 20. Vascular effects of hyperoxaemia and its mechanisms in man

    Författare :Andreas Rousseau; Göran Hedenstierna; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : Most cells in the human body cannot survive without oxygen. The regulation of oxygen delivery to meet demands of tissues remains contentious. LÄS MER