treatment remains experimental. This is used as an alternative
treatment for high-risk surgical patients.
This is done in an
interventional angiographic suite under local anesthesia at the
puncture site and minimal conscious sedation.
A small puncture is
made in the femoral artery at the groin. From this site, small
catheters are fed up to the carotid artery. A predilation of the
carotid artery may be needed prior to stent placement. This
involves advancing a guidewire across the stenosis and then an
angioplasty balloon is placed across the lesion. The balloon is
inflated to widen the artery. The next step is the placement of
the stent. This stent is threaded up to the narrowed artery from
the groin. The stent is expanded, opening the narrowed artery.
Another dilation of the stent may be required once the stent is
(picture shows a stent)