1. Moderate altitude is not associated with adverse postoperative outcomes for patients undergoing bidirectional cavopulmonary anastomosis and Fontan operation: A comparative study among Denver, Edmonton, and Toronto 
Zhi Zhou, BEng, Sunil P. Malhotra, MD, Xiaoyang Yu, MD, Jennifer Rutledge, MD, Ivan M. Rebeyka, MD, David B. Ross, MD, Christopher Rausch, MD, Hong Gu, MD, PhD, Brian McCrindle, MD, Francois Lacour-Gayet, MD, Dunbar Ivy, MD, Jia Li, MD, PhD 
The Journal of Thoracic and Cardiovascular Surgery 
Volume 146, Issue 5, Pages (November 2013)
DOI: /j.jtcvs
Copyright © 2013 The American Association for Thoracic Surgery Terms and Conditions

2. Figure 1
The altitude distribution at the patient's place of residence at time of BCPA from the 3 centers.
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs )
Copyright © 2013 The American Association for Thoracic Surgery Terms and Conditions

3. Figure 2
Postoperative outcomes in the 3 centers. BCPA, Bidirectional cavopulmonary anastomosis; HTx, heart transplantation.
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs )
Copyright © 2013 The American Association for Thoracic Surgery Terms and Conditions

4. Figure 3
Correlations between altitude and PVR in all the patients from the 3 centers at (A) pre-BCPA and (B) pre-Fontan catheterization. PVR, Pulmonary vascular resistance; BCPA, bidirectional cavopulmonary anastomosis; HTx, heart transplantation.
The Journal of Thoracic and Cardiovascular Surgery  , DOI: ( /j.jtcvs )
Copyright © 2013 The American Association for Thoracic Surgery Terms and Conditions