Answer:
Surgical repair usually has no complications, but there may be a risk of injury to the adjacent nerves that affect your tongue and voice. The most concerning risk is risk of stroke, but this is very rare. Your vascular surgeon will discuss the important risks and benefits with you.
Special precautions are taken to decrease these risks, and there may be other possible risks. When you meet with your doctor, please ask questions to make sure you understand the risks of the procedure and why the procedure is recommended.