| Complications | Risk category |
|---|---|
| Death | Very rare <2%, usually due to stroke |
| Stroke | Uncommon <5%, about half will be disabling |
| Headache | Uncommon, can indicate hyperperfusion |
| Numb chin | Common, perhaps at least 20% |
| Hoarse voice | Uncommon 10%, due to laryngeal nerve damage |
| Facial weakness | Very rare <5%, weakness on opposite side to surgery indicates a likely stroke |
| Heart attack | Very rare <2%, more common with general anaesthetic |
| Wound haematoma | Uncommon, depends on use of antithromotics but can threaten airway |
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Page last reviewed: 12 May 2020
