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