Here is some more literature on insulin resistance and its connection to cardiovascular issues.
The first reference specifically mentions hyperinsulinemia.. Chronically elevated insulin levels are a large risk factor for heart issues. Its also referencing non diabetics so this is pretty relevant information for many folks.
The second reference is detailed and a bit lengthy but detailed.
http://atvb.ahajournals.org/content/32/8/1754
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC380256/