What constitutes a high-risk patient?

A patient can be classified as being at high risk of CHD if one or more of the following are present:

- Established coronary heart disease

• Stable or unstable angina pectoris
• History of MI
• History of interventions such as coronary angioplasty or coronary artery bypass grafting
  
  

- Presence of atherosclerosis other than coronary heart disease

• Peripheral artery disease
• Greater than 50% obstruction of a carotid artery
• Transient ischemic attacks
• Ischemic stroke
• Abdominal aortic aneurysm
  
  

- A calculated 10-year risk of MI or sudden coronary death of 20% or more.