1. Exhaled Acetone as a New Biomarker of Heart Failure Severity
Fabiana G. Marcondes-Braga, MD, PhD, Ivano G.R. Gutz, PhD, Guilherme L. Batista, MSc, Paulo H.N. Saldiva, MD, PhD, Silvia M. Ayub-Ferreira, MD, PhD, Victor S. Issa, MD, PhD, Sandrigo Mangini, MD, Edimar A Bocchi, MD, PhD, Fernando Bacal, MD, PhD 
CHEST 
Volume 142, Issue 2, Pages (August 2012)
DOI: /chest
Copyright © 2012 The American College of Chest Physicians Terms and Conditions

2. Figure 1
Study design. ADHF = acute decompensated heart failure; CHF = chronic heart failure; CPT = cardiopulmonary test; CRF = chronic renal failure; EF = ejection fraction; GC-MS = gas chromatography-mass spectrometry; HF = heart failure; w/o = without.
CHEST  , DOI: ( /chest )
Copyright © 2012 The American College of Chest Physicians Terms and Conditions

3. Figure 2
EBA and BNP levels in the diagnosis of CHF and ADHF. A, Median EBA concentration for CHF group. B, Median BNP concentration for CHF group. EBA and BNP concentrations were significantly higher in HF group than in the control group. C, Median EBA concentration for the ADHF group. D, Median BNP concentration for the ADHF group. EBA and BNP concentrations were significantly higher in the ADHF group than in the CHF group. Boxes show interquartile ranges, and bars represent highest and lowest values.
CHEST  , DOI: ( /chest )
Copyright © 2012 The American College of Chest Physicians Terms and Conditions

4. Figure 3
Receiver operating characteristic (ROC) curves for the diagnosis of chronic HF and ADHF. A, ROC curves for EBA and BNP to diagnose HF. B, ROC curves for EBA and BNP to differentiate chronic HF from ADHF. AUC = area under the curve. See Figure 1 and 2 legends for expansion of other abbreviations.
CHEST  , DOI: ( /chest )
Copyright © 2012 The American College of Chest Physicians Terms and Conditions

5. Figure 4
Median EBA concentration in patients with HF expressed as a function of NYHA symptom severity. Boxes show interquartile ranges, and bars represent highest and lowest values. NYHA = New York Heart Association. See Figure 1 and 2 legends for expansion of other abbreviation.
CHEST  , DOI: ( /chest )
Copyright © 2012 The American College of Chest Physicians Terms and Conditions

6. Figure 5
Correlation between EBA and BNP concentrations. See Figure 2 legend for expansion of abbreviations.
CHEST  , DOI: ( /chest )
Copyright © 2012 The American College of Chest Physicians Terms and Conditions