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Stenosis (from Ancient Greek στενός (stenós) 'narrow') is the abnormal narrowing of a blood vessel or other tubular organ or structure such as foramina and canals. It is also sometimes called a stricture (as in urethral stricture ).
The common carotid artery is the large artery whose pulse can be felt on both sides of the neck under the jaw. On the right side it starts from the brachiocephalic artery (a branch of the aorta), and on the left side the artery comes directly off the aortic arch.
The tibiofibular trunk terminates by bifurcating into two terminal branches: the posterior tibial artery, and the fibular artery. This is the most common configuration of the origins of these arteries, however, many other anatomical variations exist. [1]
The procedure involves dividing the subclavian artery and reconnecting the proximal portion to the pulmonary arteries, leaving the vertebral artery as the primary supply to the distal subclavian artery. [6] Various congenital vascular malformations cause SSS, examples including aortic coarctation and interrupted aortic arch. [7]
Restenosis is the recurrence of stenosis, a narrowing of a blood vessel, leading to restricted blood flow. Restenosis usually pertains to an artery or other large blood vessel that has become narrowed, received treatment to clear the blockage, and
Angiography provides important information regarding the perfusion and patency of distal arteries (e.g. femoral artery). The presence of collateral arteries in the pelvic and groin area is important in maintaining crucial blood flow and lower limb viability. However, angiography should only be used if symptoms warrant surgical intervention. [2]
Since the stenosed aortic valve may limit the heart's output, people with aortic stenosis are at risk of syncope and dangerously low blood pressure should they use any of a number of medications for cardiovascular diseases that often coexist with aortic stenosis. Examples include nitroglycerin, nitrates, ACE inhibitors, terazosin (Hytrin), and ...
The middle genicular artery is a small branch of the popliteal artery that originates inferior or distal to both the superior genicular arteries as well as the sural arteries. Inferior or distal to the origins of the superior and middle genicular arteries are the two inferior genicular arteries: Medial inferior genicular artery