It is not possible to generalize about how risky surgery for carotid artery stenosis is. The most important risks are postoperative restenosis and the risk of cerebral infarction.
1. Restenosis: Carotid artery stenosis stent implantation surgery should be combined with a protective umbrella, that is, before stent placement, the guidewire is placed into the protective umbrella, once the plaque ruptures during balloon dilatation and the lipids are dislodged, they can be captured by the umbrella, preventing the plaque from dislodging into the cerebral artery.
The most common postoperative complications are in-stent thrombosis and stent restenosis, which may require a second surgery.
2. Cerebral infarction: the incidence is relatively low, due to the presence of plaque in the stent placement and after the placement of the stent may cause thrombus dislodgement and result in cerebral infarction, the light may appear hemiplegia and aphasia, and the serious cases may lead to coma, or even life-threatening.
Carotid artery stenosis stenting is a dangerous procedure, so it is important to choose a regular hospital to perform this type of surgery.