Angioplasty is a term describing a
procedure used to widen vessels narrowed by stenoses or occlusions. There are
various types of these procedures and their names are associated with the type
of vessel entry and equipment used. For example, percutaneous transluminal
angioplasty (PTA) describes entry through the skin (percutaneous) and navigates
to the area of the vessel of interest through the same vessel or one that
communicates with it (transluminal). In the case of a procedure involving the
coronary arteries, the point of entry could be the femoral artery in the groin
and the cath- eter/guidewire system is passed through the aorta to the heart
and the origin of the coronary arteries at the base of the aorta just outside
the aortic valve.
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