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Position-dependent distribution of lung ventilation - A feasability study
Swisstom AG, Landquart, Switzerland..
Hosp Clin Univ, Dept Anesthesia & Crit Care, Valencia, Spain..
Hosp Univ Princesa, Dept Anesthesiol, Madrid, Spain..
Inst Invest Sanitaria Fdn Jimenez Diaz, Dept Crit Care, Madrid, Spain..
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2015 (English)In: 2015 IEEE Sensors Applications Symposium (SAS), 2015, p. 429-434Conference paper, Published paper (Refereed)
Abstract [en]

The aim of this feasibility study was to determine whether the measurement setup and study protocol were able to show the effect that lung disease, body position and different levels of positive end expiratory pressure (PEEP) have on lung function. By means of a motorized rotation table and gravity sensors six pigs were rotated in steps of 30 degrees from left to right lateral position. Regional ventilation distributions, measured by electrical impedance tomography (EIT), oxygenation and compliance measurements were performed at each position. Both, experimental and measurement setup as well as the parameters chosen to characterize lung function appear suitable for analyzing the effects of PEEP and rotation in healthy and injured lungs. The initial results show that the distribution of regional ventilation was highly gravity-dependent especially in sick lungs. Furthermore lateral rotation showed significant recruitment effects on previously collapsed lung tissue as witnessed by the increases in oxygenation at all PEEPs.

Place, publisher, year, edition, pages
2015. p. 429-434
Keywords [en]
EIT, electrical impedance tomography, lung function mechanical ventilation, oxygenation, PEEP, positive end expiratory pressure, rotation, recruitment, sensors
National Category
Medical Laboratory and Measurements Technologies
Identifiers
URN: urn:nbn:se:uu:diva-311108ISI: 000380510800078ISBN: 9781479961177 (print)OAI: oai:DiVA.org:uu-311108DiVA, id: diva2:1058499
Conference
IEEE Sensors Applications Symposium (SAS), APR 13-15, 2015, ZADAR, CROATIA
Available from: 2016-12-21 Created: 2016-12-21 Last updated: 2016-12-21Bibliographically approved

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Suarez-Sipmann, Fernando

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