<qa>  What is the name of the type of heart failure that has been defined by the New York Heart- History of any one of the following cardiovascular conditions within the past 6 months: Class III or IV congestive heart failure as defined by the New York Heart Association NYHA, cardiac angioplasty or stenting, myocardial infarction, unstable angina, symptomatic peripheral vascular disease or other clinically significant cardiac disease. 