Sökning: "respiratory system resistance"

Visar resultat 1 - 5 av 43 avhandlingar innehållade orden respiratory system resistance.

  1. 1. On respiratory system mechanics in ventilated newborn infants

    Författare :Ants Silberberg; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; respiratory function test; compliance; very low birthweight infant; respiratory mechanics; lung mechanical model; endotracheal tube resistance; respiratory distress syndrome; newborn; alveolar gas compression; whole body pletysmography; resistance;

    Sammanfattning : .... LÄS MER

  3. 2. Artificial Neural Networks (ANN) in the Assessment of Respiratory Mechanics

    Författare :Gaetano Perchiazzi; Göran Hedenstierna; Björn Jonson; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Physiology; artificial neural networks; respiratory system compliance; respiratory system resistance; respiratory system time constant; intrinsic positive end expiratory pressure; PEEPi; animal model; acute lung injury; oleic acid; Otis model; Fysiologi; Physiology; Fysiologi;

    Sammanfattning : The aim of this thesis was to test the capability of Artificial Neural Networks (ANN) to estimate respiratory mechanics during mechanical ventilation (MV). ANNs are universal function approximators and can extract information from complex signals. LÄS MER

  4. 3. Lung mechanics in the aging lung and in acute lung injury. Studies based on sinusoidal flow modulation

    Författare :Ulrika Bitzén; Lund Klinisk fysiologi; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Diagnostics; Diagnostik; acute lung injury; lung mechanics; acute respiratory distress syndrome; intensivvård; Anestesiologi; intensive care; Anaesthesiology; Andningsorganen; Respiratory system; Fysiologi; Physiology; flow regulation; method; lung resistance; compliance; aging;

    Sammanfattning : Knowledge about lung mechanics is of interest in intensive care to adjust mechanical ventilation and in the lung laboratory for diagnostics and evaluation of patients with various kinds of respiratory diseases. In mechanical ventilation a single inspiratory elastic pressure-volume (Pel/V) curve is difficult to interpret due to continuing re-expansion of collapsed lung units over a large pressure interval. LÄS MER

  5. 4. Lung Transplantation: Clinical and experimental studies

    Författare :Leif Eriksson; allergologi och palliativ medicin Lungmedicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Respiratory system; Follow up Studies; Vascular Resistance; Intensive Care; Induced; Hypothermia; Swine; Extracorporeal Circulation; Lung Transplantation; Organ Preservation; Andningsorganen; Immunology; serology; transplantation; Immunologi; serologi;

    Sammanfattning : During the past 15 years lung transplantation has been established as a therapeutic option for patients with end-stage pulmonary disease. The results have improved over time and some transplantation centers now show 1-year survival rates above 80%. LÄS MER

  7. 5. Glucocorticosteroid effects on cytokine production: studies in a glucocorticosteroid resistance model and in allergic airway disease

    Författare :Susanne Larsson; allergologi och palliativ medicin Lungmedicin; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; GM-CSF; cytokine; glucocorticoids; budesonide; IL-2; IL-4; IL-12; asthma; allergic rhinitis; allergic airway inflammation; Respiratory system; Andningsorganen;

    Sammanfattning : Glucocorticosteroids (GCS) are potent anti-inflammatory drugs, probably due to inhibitory effects on cytokine production. However, a small number of asthma patients seem GCS-resistant. Pro-inflammatory cytokines, such as interleukin-2(IL-2) and IL-4, produced during allergic airway inflammation have been proposed to induce the resistance to GCS. LÄS MER