angiography report

My Coronary Angiogram Report?
I am Male 58. i had my bypass surgery done in1995 becuse of 3VD at that time. I was advised a Coronary Angiogram, after I complained about my chest pain after breakfast. Angiogram report came thus:

LMCA :Normal
LAD: total (100%) occlusion at mid segment ; LIMA to LAD patent
LCX: total occlusion at mid segment ; SVG to OM - total occlusion at origin.
RCA: Dominant ; total occlusion mid segment ;retrograde filling via bridging collaterals ; SVG to RCA - totally occluded at orogin
Impression: Severe 3VD.
                  LIMA to LAD patent.
                  SVG to OM1, D1 & RCA - totally occluded  

Can anyone help to decipher what it all means ?

[ed34]

Yes it's quite an easy one.
Your LAD is totally blocked but your Left Internal Mammary Artery (lima), an artery in your chest between the ribs, was used to supply blood past the blockage. This LIMA vessel is patent (OPEN and working).
Your Left Circumflex vessel has a total blockage also that had a Vein from your leg grafted to it, to give a supply of blood beyond the blockage. I have no idea where the other end of the Vein was grafted to, but this end has blocked. It has no blood flow anymore into the circumflex.
Your RCA too had a leg Vein grafted, but the other end of this is also blocked. However, the Right Coronary Artery has developed new feeds through tiny vessels called collaterals. These open up in some people to give a feed to areas requiring more blood.
It states also your Diagonal 1 vessel is blocked and this comes from the LAD.
So, to summarise, Right Coronary Artery is ok, being fed with collaterals.
LAD is ok, Lima is still fully open.
Left circumflex is blocked about halfway down, vein graft is closed.
Diagonal 1 vessel is totally blocked.

Have they offered angioplasty to stent these blockages? I think it's more difficult in Veins.