<qa>  What is the name of the type of cardiac or vascular event that occurred within 6 months?- Significant cardiac or vascular events within 6 months: acute MI, unstable angina, severe peripheral vascular disease ischemic pain at rest class 3 or worse, non-healing ulcerswounds, congestive heart failure NYHA class 2, uncontrolled cardiac arrhythmias, and disseminated intravascular coagulation. 