1. Vulnerability of Coronary Circulation After Norwood Operation
Hirofumi Saiki, MD, Seiko Kuwata, MD, Clara Kurishima, MD, Satoshi Masutani, MD, Hideaki Senzaki, MD 
The Annals of Thoracic Surgery 
Volume 101, Issue 4, Pages (April 2016)
DOI: /j.athoracsur
Copyright © 2016 The Society of Thoracic Surgeons Terms and Conditions

2. Fig 1
Representative aortic pressure waveforms used for the calculation of the subendocardial viability ratio (SEVR) in (A) control patients, (B) pulmonary artery and aortopulmonary shunt, and (C) Norwood groups. SEVR was calculated as the tension time index (TTI) divided by the diastolic time index (DTI).
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2016 The Society of Thoracic Surgeons Terms and Conditions

3. Fig 2
Group data for the subendocardial viability ratio (SEVR). Each box-and-whisker plot shows the sample distribution: minimum (lower whisker), lower quartile (bottom border of the box), median (horizontal line), upper quartile (top border of the box) and maximum (top whisker). The SEVR in the Norwood (0.57 ± 0.18; 95% confidence interval, 0.50 to 0.64) and aortopulmonary (AP) shunt (0.66 ± 0.10; 95% confidence interval, 0.62 to 0.70) groups was significantly lower than in the controls (0.94 ± 0.25; 95% confidence interval, 0.85 to 1.03). After controlling for heart rate, the SEVR in Norwood patients was significantly lower than in AP shunt patients. *p < 0.01 vs control group, †p < 0.01 vs AP shunt group after controlling for heart rate.
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2016 The Society of Thoracic Surgeons Terms and Conditions

4. Fig 3
Relations between the subendocardial viability ratio (SEVR) and hormonal activities. SEVR was negatively correlated with renin-angiotensin (ATII)-aldosterone (Ald) as well as atrial (ANP) and brain (BNP) natriuretic peptides.
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )
Copyright © 2016 The Society of Thoracic Surgeons Terms and Conditions