Other names for CAD
Congestive HD and heart disease
CAD
atherosclerotic clogging of the coronary arteries causing cells to die bc the lumen are swollen
Coronary arteries
the widowmaker
L anterior descending artery when it is clogged (worst bc it supplies L vent)
Big risk of CAD
heart attacks
non-modifiable risk fx for CAD
gender (men and women after menopause), Black and indigenous ppl, genetics
Modifiable risk factors for CAD
HTN, smoking and 2nd hand exposure, nicotinic stimulation of catecholamines, DM, obesity (esp android - affects adiopcytes), diet, HLD, dep/anx, stress
Protective fx for CAD
DASH diet
Why does smoking inc risk CAD
damages endothelial cell walls
Ischemia HD
atherosclerosis develop in arteries supplying the myocardium, causing arterial blockages
- dec tissue perfusion and endothelial dysfxn causing the vessels to narrow when they are meant to pump
- heart works harder to pump
Causes of ichemic HD
DM, HTN, smoke, HPL
Angina
What occurs with a complete occlusion of the arteries?
MI
MI pain
Risk of MI is greatly increased with…
symptomatic angina
Stable angina
coronary BF is dec but not blocked
- occurs with exertion, stops with rest in 2-5 min
- imbalance btwn supply and demand
- cause by athero
What to do when feel stable angina
Sit down, take a nitrate
Cardiac pain
pressure, tightness, diffuse and poorly localized
non-cardiac pain
sharp, stabbing, focal, well-localized
Atypical angina
NC for stable angina