dyslipidemia Flashcards
chaudrey
what are the risks of having high cholesterol?
heart disease
stroke
what is the pathogenesis of atherosclerosis?
endothelial injury –> inflammatory response –> macrophage infiltration –> platelet adhesion –> smooth muscle cell proliferation –> extracellular matrix accumulation
what are the symptoms of dyslipidemia?
mostly asymptomatic
chest pain
palpitations
sweating
anxiety
SOB
loss of consciousness
difficulty with speech or movement
abdominal pain
sudden death
what are the signs of dyslipidemia?
pancreatitis
eruptive xanthomas
peripheral polyneuropathy
increased BP
waist size
BMI > 30
what labs should be monitored for dyslipidemia?
increased non HDL-C, TC, LDL-C, TG, Apo-B, CRP, and LDL-P
decreased HDL
what is LDL-C?
the amount of cholesterol in LDL particles
primary lab ordered
what is LDL-P?
number of LDL particles
what is non-HDL-c?
amount of cholesterol in atherogenic particles
how would you solve for non-HDL-C?
TC - HDL
what is Apo-B?
number of atherogenic particles
when would a non-fasting lipid panel be appropriate to order?
measuring initial risk
patient is not on lipid-lowering therapy
patient does not have a family history of genetic hyperlipidemia
patient has low TGs
what is in a fasting lipid panel (FLP)?
TC
TG
HDL-C
LDL-C
how do you calculate LDL?
friedewald equation
= TC - HDL - (TG/5)
what is goal ration of TC to HDL?
under 5:1
optimal is 3-3.5:1
what are some lifetstyle modifications to make to manage dyslipidemia?
DASH diet
reduce percent of calories from saturated and trans fat (5-6%)
reduce sodium intake (under 1500 mg)
moderate to vigorous physical activity (90-150 minutes/week)
weight loss
smoking cessation
how many calories are in a single gram of fat?
9 calories
what is olestra?
non digestible, non absorbable, and noncaloric fat substitute to reduce intake of saturated fats and cholesterol
what soluble fibers lower LDL?
oat bran
pectins or gums
psyllium produc ts
plant stanols and sterols
what is MOA of psyllium?
bind to cholesterol in the gut to reduce hepatic production and clearance
reduce LDL and TC
what impact does fish oil have?
reduce TG
may increase LDL by 4-49%
what is vascepa?
icosapent ethyl
TG risk-based nonstatin therapy for ASCVD risk reduction
take 2g PO BID wf
what is Lavaza?
omega-3 fatty acid
2-4 g qd
what is the risk associated with omega-3 fatty acids?
atrial fibrillation
what affect on LDL does saturated fat consumption have?
having saturated fats under 7% of calories –> 8-10% reduction
what impact on LDL does cholesterol consumption have?
cholesterol consumption being under 200 mg/day –> 3-5% reduction
what impact on LDL does weight loss have?
10 pounds loss if overweight –> 5-8% reduction
what impact on LDL does adding soluble fiber have?
adding 5-10g of soluble fiber –> 3-5% reduction
what impact on LDL does adding plant sterols/stanols have?
adding 2g of plant sterols/stanols –> 5-15% reduction
how does statins impact LDL, HDL, and TG?
20-60% reduction in LDL
5-10% increase in HDL
10-33% reduction in TG
what impact does BARs have on cholesterol?
15-30% reduction LDL
minimal effects on HDL and TG
what impact does zetia have on cholesterol?
17% reduction in LDL
1% increase in HDL
7-8% reduction in TG
what impact does PCSK9 mAb have on cholesterol?
60-70% reduction in LDL
modest benefit on TG and HDL
what impact does inclisiran have on cholesterol?
48-52% reduction in LDL
5-6% increase in HDL
30-33% reduction in TG
what impact does bempedoic acid have on cholesterol?
18% reduction in LDL
minimal effect on HDL and TG
what impact does gemfibrozil have on cholesterol?
10-15% reduction in LDL
5-20% increase in HDL
35-50% reduction in TG
what impact does fenofibrate have on cholesterol?
6-20% reduction in LDL
5-20% increase in HDL
41-53% reduction in TG
what impact does lovaza have on cholesterol?
4-49% increase in LDL
5-9% increase in HDL
23-35% reduction in TG
what impact does niacin have on cholesterol?
10-25% reduction in LDL
15-25% increase in HDL
25-30% reduction in TG
what drugs are statins?
lovastatin
pravastatin
pitavastatin
simvastatin
fluvastatin
atorvastatin
rosuvastatin
what statins are preferred in renal impairment?
fluvastatin
atorvastatin
no dosage adjustments necessary
what are the low intensity statins?
simvastatin 10mg
pravastatin 10-20mg
lovastatin 20mg
fluvastatin 20-40mg
what are the high intensity statins?
atorvastatin 40-80
rosuvastatin 20-40mg
what are hydrophilic statins?
pravastatin
rosuvastatin
what are lipophilic statins?
fluvastatin
pitavastatin
lovastatin
simvastatin
atorvastatin
what statins are metabolized by CYP3A4?
lovastatin
simvastatin
atorvastatin
what is unique about simvastatin?
needs to be taken in the evening due to short half-life
what risk is associated with simvastatin 80mg?
increased risk of myopathy and rhabdomyalgia
do not give to paitents
what SE are common in lipophilic statins?
muscle pain
what SE are common in hydrophilic statins?
increased risk of liver toxicity
what are SE of statins?
myopathy
rhabdomyolysis (unusual muscle pain/dark urine)
what are counseling points of statins?
obtain LFTs at baseline
avoid over 1qt of grapefruit juice
d/c if creatine kinase is over 10x ULN
at what LFT level should a statin be d/c?
if 3x ULN
what are characteristics that predispose patients to statin SE?
hepatic or renal dysfunction
prior statin intolerance
muscle disorders
unexplained ALT elevations over 3x ULN
other drugs that affect statin metabolism
over 75 years
what are the CI of statins?
acute liver disease
unexplained/persistent elevations of serum transaminases
pregnancy/breastfeeding
what is the preferred statin in patients taking a strong CYP3A4 inhibitor?
pravastatin
fluvastatin
rosuvastatin
pitavastatin
what is CoQ100?
an agent that can help prevent adverse muscle effects from statins
take 150-200mg
how should a muscle injury in statin be managed?
d/c statin
see if muscle pain resolves
switch to a hydrophilic statin
consider alternative dosing
how would you alternatively dose statin?
every other day –> dose needs to be double to achieve similar LDL lowering
once weekly dosing
what are the CI of simvastatin?
itraconazole
ketoconazole
posaconazole
erythromycin
clarithromycin
telithromycin
HIV protease inhibitors
nefazodone
gemfibrozil
cyclosporine
danazol
what is unique about simvastatin 10mg?
you cannot exceed this level when taking verapamil or diltiazem concurrently
what is unique about simvastatin 20mg?
you cannot exceed this level when taking amiodarone, amlodipine, or ranolazine concurrently
what classic disease state are statins associated with?
hyperglycemia