Sökning: "pulmonary perfusion"

Visar resultat 16 - 20 av 68 avhandlingar innehållade orden pulmonary perfusion.

  1. 16. Pulmonary function, ventilation/perfusion relationships and aerosol therapy in early adult respiratory distress syndrome : experimental studies in the pig

    Författare :Pelle Forsgren; Uppsala universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : .... LÄS MER

  3. 17. Studies on production and function of pulmonary nitric oxide

    Författare :Christofer Adding; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :adrenaline; adrenoceptors; beta-adrenoceptors; calcium; carbon dioxide; catecholamines; chemiluminescence; exhaled; gadolinium chloride; high frequency oscillatory ventilation; nitric oxide; pulmonary; pulmonary circulation; stretch; sympathoadrenal; veratrine;

    Sammanfattning : Nitric oxide is involved in pulmonary vascular and bronchial regulation and appears to be of paramount importance in the adaptation of the pulmonary circulation at birth. Nitric oxide is present in exhaled gas. LÄS MER

  4. 18. 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

  5. 19. Regional pulmonary vasoreactivity, with special reference to nitric oxide, prostacyclin and body posture

    Författare :Danguolé Rimeika; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Regional pulmonary perfusion; nitric oxide; prostacyclin; NOS-inhibition; COX-inhibition; shunt; one-lung ventilation;

    Sammanfattning : The primary aim of the study was to investigate possible mechanisms behind the improved arterial oxygenation in ventilator-treated patients with acute lung injury (ALI) or acute respiratory distress syndrome (ARDS) when turned into prone position. A secondary aim was to discover new knowledge of possible importance for treatment of patients with oxygenation problems in intensive care and during anesthesia. LÄS MER

  7. 20. Acute and long-term effects of pulmonary embolism on heart function and lung circulation

    Författare :Ary Ribeiro; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Pulmonary embolism; pulmonary heart disease; follow-up studies; nuclear medicine; perfusion; echocardiography; ventricular function; statistics; time-course;

    Sammanfattning : Objectives: To describe the course over time of pulmonary artery systolic pressure (PAsP) and right ventricle (RV) function assessed with echocardiography-Doppler (E-D) and extent of perfusion defects (PDf) on lung scintigraphy (LS) and to identify patients at increased risk for death or for chronic pulmonary hypertension (PH), after pulmonary embolism (PE). Design: Prospective follow-up studies with cross-sectional analyses. LÄS MER