As with most procedures done on your heart and blood vessels, a coronary angiogram has some risks, such as radiation exposure from the X-rays used. Major complications are rare, though. Potential risks and complications include:

  • Heart attack
  • Stroke
  • Injury to the catheterized artery
  • Irregular heart rhythms (arrhythmias)
  • Allergic reactions to the dye or medications used during the procedure
  • Kidney damage
  • Excessive bleeding
  • Infection
Nov. 09, 2016
  1. Angiogram. Society for Cardiovascular Angiography and Interventions. http://www.secondscount.org/tests/test-detail?cid=def4661c-6a8d-4e13-a7c7-0751770609ee#.V8OOdDUmGLU. Accessed Aug. 29, 2016.
  2. Fuster V, et al., eds. Cardiac catheterization, cardiac angiography, and coronary blood flow and pressure measurements. In: Hurst's The Heart. 13th ed. New York, N.Y.: The McGraw-Hill Companies; 2011. http://www.accessmedicine.com. Accessed Aug. 26, 2016.
  3. Cardiac catheterization. American Heart Association. http://www.heart.org/HEARTORG/Conditions/HeartAttack/SymptomsDiagnosisofHeartAttack/Cardiac-Catheterization_UCM_451486_Article.jsp#.V8OeeTUmGLU. Accessed Aug. 28, 2016.
  4. Longo DL, et al., eds. Diagnostic cardiac catheterization and coronary angiography. In: Harrison's Principles of Internal Medicine. 19th ed. New York, N.Y.: McGraw-Hill Education; 2015. http://accessmedicine.com. Accessed Aug. 26, 2016.
  5. Cardiac catheterization. National Heart, Lung, and Blood Institute. http://www.nhlbi.nih.gov/health/health-topics/topics/cath/#. Accessed Aug. 28, 2016.
  6. Goldman L, et al., eds. Catheterization and angiography. In: Goldman-Cecil Medicine. 25th ed. Philadelphia, Pa.: Saunders Elsevier; 2016. http://www.clinicalkey.com. Accessed Aug. 28, 2016.
  7. Angiogram. Society for Vascular Surgery. https://vascular.org/print/patient-resources/vascular-tests/angiogram. Accessed Aug. 28, 2016.