Possible Complications

Problems are rare, but all procedures have some risk. The doctor will go over some problems that may happen, such as:

  • Bleeding where the catheter goes in
  • Damage to an artery wall
  • Heart attack or abnormal heart beats known as arrhythmias
  • Allergic reaction to the x-ray dye
  • Blood clot formation
  • Infection

Some things that may raise the risk of problems include:

  • Allergies to medicines or x-ray dye
  • Obesity
  • Smoking
  • Bleeding problems
  • Increased age
  • Recent pneumonia
  • Recent heart attack
  • Diabetes
  • Kidney disease



This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.

Edits to original content made by Denver Health.