1. Veno-venous bypass to prevent myocardial ischemia during right heart bypass operation in PA, IVS, and RV dependent coronary circulation 
Toshihide Asou, MD, Kouji Matsuzaki, MD, Kanzi Matsui, MD, Tom R Karl, MD, Roger B.B Mee 
The Annals of Thoracic Surgery 
Volume 69, Issue 3, Pages (March 2000)
DOI: /S (99)

2. Fig 1
The right ventricular angiography: (A) in patient 1, the left anterior descending coronary artery (→), which is retrogradely opacified through the right ventricle, is interrupted at the middle of its course (→); (B) in patient 2, the left anterior descending coronary artery is also interrupted at the middle of its course (→), and the proximal left anterior descending coronary artery drained into the right ventricular cavity forming the right ventricle to coronary fistulae. The distal part of the left anterior descending coronary artery is perfused through the right ventricle (→). The right coronary artery is also opacified through the right ventricle.
The Annals of Thoracic Surgery  , DOI: ( /S (99) )

3. Fig 2
A veno-venous bypass circuit is conducted by draining systemic venous blood through cannulas inserted into the superior and the inferior vena cava (SVC, IVC), and perfusing the right atrium (RA) with oxygenated blood from the cardiopulmonary bypass machine while the right arterial pressure was monitored. The right ventricle can keep beating, ejecting oxygenated blood into the right ventricle dependent coronary artery.
The Annals of Thoracic Surgery  , DOI: ( /S (99) )