RisksBy Mayo Clinic staff
As with most procedures done on your heart and blood vessels, coronary angiogram has some risks. Major complications are rare, though. Potential risks and complications include:
- Heart attack
- Injury to the catheterized artery
- Irregular heart rhythms (arrhythmias)
- Allergic reactions to the dye or medications used during the procedure
- A tear in your heart or artery
- Kidney damage
- Excessive bleeding
- Blood clots
- Radiation exposure from the X-rays
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