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  • Single-lung transplant results in position dependent changes in regional ventilation: An observational case series using electrical impedance tomography

    Author(s)
    Ramanathan, Kollengode
    Mohammed, Hend
    Hopkins, Peter
    Corley, Amanda
    Caruana, Lawrence
    Dunster, Kimble
    Barnett, Adrian G
    Fraser, John F
    Griffith University Author(s)
    Corley, Amanda
    Year published
    2016
    Metadata
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    Abstract
    Background: Lung transplantation is the optimal treatment for end stage lung disease. Donor shortage necessitates single-lung transplants (SLT), yet minimal data exists regarding regional ventilation in diseased versus transplanted lung measured by Electrical Impedance Tomography (EIT). Method: We aimed to determine regional ventilation in six SLT outpatients using EIT. We assessed end expiratory volume and tidal volumes. End expiratory lung impedance (EELI) and Global Tidal Variation of Impedance were assessed in supine, right lateral, left lateral, sitting, and standing positions in transplanted and diseased lungs. A mixed ...
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    Background: Lung transplantation is the optimal treatment for end stage lung disease. Donor shortage necessitates single-lung transplants (SLT), yet minimal data exists regarding regional ventilation in diseased versus transplanted lung measured by Electrical Impedance Tomography (EIT). Method: We aimed to determine regional ventilation in six SLT outpatients using EIT. We assessed end expiratory volume and tidal volumes. End expiratory lung impedance (EELI) and Global Tidal Variation of Impedance were assessed in supine, right lateral, left lateral, sitting, and standing positions in transplanted and diseased lungs. A mixed model with random intercept per subject was used for statistical analysis. Results: EELI was significantly altered between diseased and transplanted lungs whilst lying on right and left side. One patient demonstrated pendelluft between lungs and was therefore excluded for further comparison of tidal variation. Tidal variation was significantly higher in the transplanted lung for the remaining five patients in all positions, except when lying on the right side. Conclusion: Ventilation to transplanted lung is better than diseased lung, especially in lateral positions. Positioning in patients with active unilateral lung pathologies will be implicated. This is the first study demonstrating changes in regional ventilation, associated with changes of position between transplanted and diseased lung.
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    Journal Title
    Canadian Respiratory Journal
    Volume
    2016
    DOI
    https://doi.org/10.1155/2016/2471207
    Subject
    Respiratory diseases
    Biomedical and clinical sciences
    Science & Technology
    Life Sciences & Biomedicine
    Respiratory System
    AIR
    Publication URI
    http://hdl.handle.net/10072/407678
    Collection
    • Journal articles

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