As with any surgery, there are risks, including the possibility of:
- Complications associated with anesthesia, including respiratory or cardiac malfunction
- Bleeding in the groin (or other catheter access site)
- Complete obstruction of blood flow to an area of the heart (a small risk, less than 1%)
- Damage to a valve or blood vessel
- Kidney failure
- Allergic reaction to X-ray dye
treats the condition, but does not cure the cause of narrowed arteries. Recurrent narrowing can be expected in up to a quarter of cases over a 6 month period. This recurrent narrowing may or may not require a repeat procedure.
Risks can be reduced by following the physician's instructions before and after surgery.