The assessment of regional lung mechanics with electrical impedance tomography: a pilot study during recruitment manouvres

Grant, Caroline A., Fraser, John F., Dunster, Kimble R. and Schibler, Andreas (2009) The assessment of regional lung mechanics with electrical impedance tomography: a pilot study during recruitment manouvres. Intensive Care Medicine, 35 1: 166-170. doi:10.1007/s00134-008-1324-0


Author Grant, Caroline A.
Fraser, John F.
Dunster, Kimble R.
Schibler, Andreas
Title The assessment of regional lung mechanics with electrical impedance tomography: a pilot study during recruitment manouvres
Journal name Intensive Care Medicine   Check publisher's open access policy
ISSN 0342-4642
1432-1238
Publication date 2009-01
Year available 2008
Sub-type Article (original research)
DOI 10.1007/s00134-008-1324-0
Volume 35
Issue 1
Start page 166
End page 170
Total pages 5
Editor M. Antonelli
Place of publication Heidelberg, Germany
Publisher Springer
Language eng
Subject 920115 Respiratory System and Diseases (incl. Asthma)
110321 Rehabilitation and Therapy (excl. Physiotherapy)
Abstract The purpose of lung recruitment manoeuvres is to open collapsed lung regions, improve gas exchange and optimise regional lung mechanics. This study investigates the efficacy of recruitment manoeuvres for improving regional ventilation distribution as characterised using electrical impedance tomography (EIT). A ventilated ovine smoke inhalation lung injury model was used. Respiratory mechanics and regional filling capacity of the lung were measured using EIT pre- and post- recruitment and compared to a control group. EIT, expressed as the time course relation of the regional versus the global impedance change, measured the regional filling capacities of the lung. After smoke inhalation injury, the dependent lung showed a significantly larger area of collapse and a reduced filling capacity compared to the non-dependent lung. After recruitment the ventilated volume increased and the dependent lung showed improved respiratory mechanics, whereas the non-dependent lung was more likely to be hyper-inflated during tidal breathing. Lung recruitment manoeuvres have a significant impact on regional lung mechanics and individual measurement of ventilation distribution using EIT may assist to improve ventilatory management.
Keyword Acute lung injury
Acute respiratory distress syndrome
Filling characteristics
Respiratory mechanics
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown
Additional Notes Published online: 11 October 2008

Document type: Journal Article
Sub-type: Article (original research)
Collections: ERA 2012 Admin Only
School of Medicine Publications
 
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 21 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 21 times in Scopus Article | Citations
Google Scholar Search Google Scholar
Created: Wed, 24 Mar 2010, 15:24:02 EST by Maree Knight on behalf of Medicine - Princess Alexandra Hospital