What people area most at risk from a cardiac catheterization?

Stroke or Bleeding: A cardiac catheterization is when a tube is inserted into the artery of the arm or leg and advanced to the heart to inject iodinated dye into the coronary arteries. Risks include bleeding, stroke, heart attack, rhythm disturbances, and even death. Overall risk of a major problem is 1:1000. Poorer health, older age, severe hardening of the arteries, diabetes and renal failure increase the risk.

Other medical condit: Anyone with other medical conditions such as kidney disease, peripheral arterial disease, bleeding tendencies, allergies to iodiine can be at higher risk. Sometimes the risk also correlates with the severity of heart disease as well.