Pulmonary infection defense after lung transplantation: does airway ischemia play a role?

Current Opinion in Organ Transplantation
Geert M VerledenBart Vanaudenaerde

Abstract

During a classical lung transplantation procedure, there is no attempt to restore the bronchial circulation, giving rise to ischemia of the mucosa with initial loss of ciliated function. This might compromise the ciliary function and the infection defense mechanisms of the airways. Although initially the airways are characterized by ischemia (epithelial sloughing), later on, there seems to be a restoration of the ciliary function and up to now, there is no clear evidence that there is an increased risk of infectious episodes due to the lack of bronchial circulation, although this has not extensively been investigated. Local pulmonary defense mechanisms after lung transplantation without bronchial revascularization seem to be preserved at least in a stable condition. Whether the loss of bronchial circulation has a negative impact when complications develop (such as bronchiolitis obliterans syndrome) remains speculative.

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Citations

May 18, 2012·Respirology : Official Journal of the Asian Pacific Society of Respirology·Sergio R BurgueteStephanie M Levine
Sep 25, 2012·American Journal of Physiology. Lung Cellular and Molecular Physiology·Mohammad A KhanMark R Nicolls
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Mar 14, 2014·Deutsches Ärzteblatt International·Marc HartertChristian-Friedrich Vahld
May 25, 2021·Seminars in Respiratory and Critical Care Medicine·Stuart C Sweet

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