Ischemic HD Flashcards
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
- branch from the root of the aorta and give the heart cells oxygenated blood
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
- main sx of CAD
- can refer to chest pain or collection of sx (dizzy, irreg HR, weak, burn in ab, cold sweats, nausea, anx)
- worsens as BF dec and arteries narrow more
What occurs with a complete occlusion of the arteries?
MI
MI pain
- not from exertion, can radiation, not relieved in 2-5 minutes
- N/V, SOA, diaphoresis, , angina pectoris and pain with MI
Risk of MI is greatly increased with…
symptomatic angina