1. Alveolar recruitment improves ventilation during thoracic surgery: a randomized controlled trial 
C. Unzueta, G. Tusman, F. Suarez-Sipmann, S. Böhm, V. Moral 
British Journal of Anaesthesia 
Volume 108, Issue 3, Pages (March 2012)
DOI: /bja/aer415
Copyright © 2012 The Author(s) Terms and Conditions

2. Fig 1
Schematic representation of the study protocol. Study points at TLV and OLV during the surgery. ARS, alveolar recruitment strategy. ARS1 was performed in the ARS group 5 min after recording TLVbaseline data while ARS2 was performed once lung resection and OLV were finished. VCM, vital capacity manoeuvre applied to the non-dependent lung in the control group after the OLV period. Data were recorded during the periods stated in the bottom of the figure (for details see text).
British Journal of Anaesthesia  , DOI: ( /bja/aer415)
Copyright © 2012 The Author(s) Terms and Conditions

3. Fig 2 The consort flow diagram.
British Journal of Anaesthesia  , DOI: ( /bja/aer415)
Copyright © 2012 The Author(s) Terms and Conditions

4. Fig 3
Volumetric capnography-derived variables. VD/VT, physiological dead space to tidal volume; VDalv/VTalv, alveolar dead space to alveolar tidal volume; VDaw/VT, airway dead space to tidal volume and VTCO2,br, expired volume of CO2 per breath. *TLVbaseline against TLV20, †TLV20 vs OLV20, §TLVbaseline vs TLVend, and ¶when compared with the control group; all P<0.05.
British Journal of Anaesthesia  , DOI: ( /bja/aer415)
Copyright © 2012 The Author(s) Terms and Conditions