Alveolar microstrain and the dark side of the lung.

Abstract:

:Mechanical ventilation associated lung injury (VALI) negatively impacts the outcomes of critically ill patients. Research during the past two decades has led to a better understanding of key physiologic mechanisms of injury, yet uncertainty over the topographical distribution of these mechanisms continues to fuel controversies over "best ventilation practice" in injured lungs. In this issue Pavone and colleagues have explored the temporal and spatial evolution of VALI in an elegant use of intravital microscopy. Their findings reinforce the notion that regions which receive most of the inspired gas, in Pavone's case the non-dependent lung of a rat supported in the lateral decubitus posture, are particularly susceptible to injury. However, the inability to measure tissue strain remote from the pleura keeps important questions about small scale intra-acinar stress and strain distributions unanswered.

journal_name

Crit Care

authors

Oeckler RA,Hubmayr RD

doi

10.1186/cc6160

subject

Has Abstract

pub_date

2007-01-01 00:00:00

pages

177

issue

6

eissn

1364-8535

issn

1466-609X

pii

cc6160

journal_volume

11

pub_type

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