Cardiovascular SystemCoronary Circulation and Vasculature
Coronary CirculationCoronary
arteries provide oxygen and nutrients to cardiac tissue.
Right and left coronary arteries are the aorta’s first branches.
Coronary CirculationCardiac veins,
carrying CO2/wastes, empty into the coronary sinus of the right atrium
Blockage of Coronary ArteriesWhat will happen if there is a clot (or
blockage from atherosclerosis) in a coronary artery?Blockage of blood supply (and therefore
O2/nutrients) to cardiac tissue Cell Death!!!=Myocardial Infarction (heart attack)
What results?Cell death!!
Coronary Bypass: attach artery/vein graft directly from aorta to just beyond blockage
Coronary Artery Balloon Angioplasty
Indication for procedure
Step One: Catheter
Step 2: Pre-Dye
Step 3: Balloon
Step 4: Stent
Step 5: Post-Dye
Before & After
Cutting Balloon: (Directional Atherectomy)
Small blades cut the plaque, balloon compresses the fatty matter into the arterial wall.
Rotoblation: (Rotational Atherectomy)Tip spins at a high speed and grinds away the
plaque on the arterial walls