Mobilization of coronary buttons
The left and right coronary ostia were mobilized with a surrounding
rim of aortic wall including almost the full thickness wall of the
sinus of valsalva without causing injury to the valve leaflets. The
process was started at the edge of the transected aortic wall for the
left coronary ostium followed by the right coronary ostium. Low
voltage cautery (5-6 mv) was used for hemostasis at the harvested
site.