Chest
Volume 148, Issue 1, July 2015, Pages 185-195
Original ResearchCOPDLung Volume Reduction in Emphysema Improves Chest Wall Asynchrony
COPD
Under a Creative Commons license
open access
ABBREVIATIONS
3-D
three-dimensional
6MWD
6-min walk distance
Ab
abdominal compartment
BLVR
bronchoscopic lung volume reduction
EELV
end-expiratory lung volume
FRC
functional residual capacity
HRCT
high-resolution CT
IC
inspiratory capacity
LVR
lung volume reduction
LVRS
lung volume reduction surgery
OEP
optoelectronic plethysmography
RC,a
abdominal ribcage compartment
RC,p
pulmonary ribcage
RV
residual volume
SGRQ
St. George's Respiratory Questionnaire
θDIA
phase shift angle between pulmonary ribcage compartmental volume and abdominal ribcage compartmental volume
θRC
phase shift angle between pulmonary ribcage compartmental volume and abdominal ribcage compartmental volume
TLC
total lung capacity
Tlim
exercise time to limitation on cycle ergometer at 75% of the maximum achieved workload on a previous incremental peak exercise test
Vab
abdominal compartmental volume
Vrc,a
abdominal ribcage compartmental volume
Vrc,p
pulmonary ribcage compartmental volume
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FUNDING/SUPPORT: This study was supported by the National Institute for Health Research Respiratory Biomedical Research Unit at the Royal Brompton and Harefield National Health Service Foundation Trust and Imperial College, London who funded the optoelectronic plethysmography assessments and partly funded the salaries of Drs Zoumot and Polkey.
This is a Wellcome-Trust-compliant open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/).
Copyright © 2015 The American College of Chest Physicians. Published by Elsevier Inc.