1. A 58-Year-Old Man With Position-Dependent Nocturnal Dyspnea
Anke Schertel, MD, Christian M. Horvath, MD, Jacqueline Pichler Hefti, MD, John-David Aubert, MD, Anne-Kathrin Brill, MD 
CHEST 
Volume 152, Issue 2, Pages e51-e55 (August 2017)
DOI: /j.chest
Copyright © 2017 American College of Chest Physicians Terms and Conditions

2. Figure 1
CT scan of the chest. Lung with idiopathic pulmonary fibrosis on the patient’s left, transplanted lung on the right.
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3. Figure 2
Ventilation-perfusion scan in the supine position, showing a distribution of ventilation and perfusion in favor of the transplanted lung: perfusion (left/right), 5%/95%; ventilation (left/right), 12%/88%.
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Copyright © 2017 American College of Chest Physicians Terms and Conditions

4. Figure 3
Polysomnography overview, visualizing the pronounced desaturation (yellow background) in the right lateral position (red line in the position graph). MT = movement time; R = stage REM; S1-S4, stages 1-4; SpO2 (Spo2) = oxygen saturation as measured by pulse oximetry; TCCO2 (Ptcco2) = transcutaneous carbon dioxide pressure; W = wakefulness.
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5. Figure 4
A 5-minute window of the polysomnography recording. A, Left lateral position: central sleep apnea/Cheyne-Stokes respiration causing moderate oxygen desaturations. B, Right lateral position: central sleep apnea/Cheyne-Stokes respiration with central apneas followed by a greater degree of desaturation. Cycle length: left lateral position, 47.5 s; right lateral position, 34.7 s. EOG-L, EOG-R, = electro-oculography (electrodes at left and right eye, respectively); Flow_DR = nasal respiratory flow. See Figure 3 legend for expansion of other abbreviations.
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Copyright © 2017 American College of Chest Physicians Terms and Conditions