Other possible complications after having a carotid endarterectomy include:
- pain or numbness at the wound site – this is temporary and can be treated with painkillers
- bleeding at the site of the wound
- wound infection – the wound where the cut was made can get infected; this affects less than 1% of people and is easily treated with antibiotics
- nerve damage – this can cause a hoarse voice and weakness or numbness on the side of your face; it affects around 4% of people, but is usually temporary and disappears within a month
- narrowing of the carotid artery again – this is called restenosis; further surgery is required in about 2 to 4% of people
Your surgeon should explain the risks associated with a carotid endarterectomy before you have the procedure.
Ask them to clarify anything you're not sure about and answer any concerns you have.
Factors that increase your risk of complications after having a carotid endarterectomy include:
- your age – the risk increases as you get older
- whether you smoke
- having previously had a stroke or transient ischaemic attack (TIA) – the risk depends on the severity of the stroke or TIA, how well you recovered, and how recently it occurred
- whether you have a blockage in your other carotid artery as well
- whether you have other health conditions – such as cancer, heart disease, high blood pressure (hypertension) or diabetes