My husband underwent an by-pass surgery on oct 2018. After 20 days, his bp gone down and felt down (block out) in bathroom. Now few days he is getting shortage of breathing. He can not walk freely. He can not laid on left side. So doctors advised to take 320 slice ct scan. In that test graft report is below 1. Svg to lad patent with good distal pacification. 2. Svg to om1 patent. Mid segment reveal 60-70% stenosis. 3.svg to lcx to pda with good distal pacification. What is that second point tells? Pls explain me.