TERMS Flashcards
patients at risk who have not had a CV event
Primary prevention
patients who have had a prior ASCVD events (MI, stroke, revascularization, etc.)
Secondary prevention
an essential structural component of membranes and a precursor to steroids (e.g.
corticosteroids, sex hormones, bile acids, vitamin D)
Cholesterol
- HDL (high density)
- LDL (low density)
- IDL (intermediate density)
- VLDL (very low density)
- Chylomicrons
these are examples of?
Lipoproteins
Responsible for structure, function, assembly, metabolism
Apolipoproteins
• Synthesized in liver from dietary fat
• Transports lipids to adipose tissue, muscles, cardiac, etc
• Once the TG content is used up, it becomes a
chylomicron remnant
Chylomicrons
• Lipolysis of adipose triglycerides releases FAs which are
esterified in liver to form TG
• TG is packaged up with APO-B100, cholesterol esters,
and vitamin E to form VLDL
• Primary carrier of TG in circulation
VLDL
VLDL in circulation gets transformed into this via lipoprotein lipase
supplies cholesterol to many tissues
invades the endothelium, becomes oxidized and this is phagocytosed by macrophages leading to
formation of foam cells
Foam cells secrete
proinflammatory cytokines and factors that lead to
atherosclerosis
LDL
- Responsible for retrieval of cholesterol from the artery wall and tissues and transport to liver
- Increased levels are associated with reduced risk of ASCVD
HDL
risk assessment evaluates a 10-year atherosclerotic cardiovascular disease incident
defined as nonfatal myocardial
infarction or coronary heart disease (CHD) death, or fatal or nonfatal stroke, over a 10-year period
ASCVD
- Single or multiple gene mutations that result in either overproduction of defective clearance of TG and LDL, or in underproduction or excessive clearance of HDL.
- Examples: familial hypercholesterolemia (homozygous/heterozygous), PCSK9 gain of function mutations, LPL deficiency
Primary etiology
- Often caused by sedentary lifestyle with excessive dietary intake of saturated fat, cholesterol, and trans fats
- Diabetes
- Alcohol overuse
- Chronic kidney disease
- Hypothyroidism
- Drugs
Secondary etiology
major cause of atherosclerotic cardiovascular disease (coronary artery disease, ischemic CV disease, peripheral vascular disease)
dyslipidemia
group of conditions that are associated with increased risk of heart disease, stroke, and diabetes
requires aggressive lifestyle modification focused on weight reduction and increased physical activity
reduction of risk factors for CVD include treatment of: HTN smoking glucose weight cholesterol
metabolic syndrome
this is the assessment that evaluates a 10 year atherosclerotic CV disease incident
what is high risk?
ASCVD
greater than or equal to 20%