Block I: Dyslipidemia Flashcards
list lipids in order of their density
LEAST DENSE 1. chylomicron 2. VLDL 3. LDL 4. HDL MOST DENSE
[] is in the intestine and transports dietary TG
chylomicron
[] is in the liver and transports endogenous TG
VLDL
[] is formed in circulation and delivers cholesterol to periphery
LDL
[] takes systemic cholesterol to the liver for breakdown and excretion
HDL
what is the role of plasma lipids
- cell membrane
- hormone synthesis
- source of free fatty acids
what is the role of lipoprotines
- chylomicron and VLDL delivery tg to cells in body
- LDL delivers cholesterol to cells in body
- HDL involved in reverse cholesterol transport
when should individuals have their lipids measured?
- 20 + every 4-6 years
2. adults with ASCVD every 3-12 months
which lipoptorein is calculated, how?
LDL, friedewald formula
that is the goal of total cholesterol
= 150
what is the LDL goal
= 100
what is the goal triglycerides
= 150
what is the goal HDL
> /= 60
what is the most arthrogenetic cholesterol
NON HDL (VLDL + LDL) Apo B
what are arthrogenic cholesterols
- LDL
2. VLDL
what is uncertain if it is arthrogenic
chylomicrons
what is not arthrogenis
HDH
a 1% redux in LDL with reduce ASVD risk by []
1%
a 1% increase in HDL will reduce ASCVD risk by []%
2-3%
how does LDL lead to ASCVD
LDL accumulated in endothelial layer of BV, engulged by macrophage, foam cell made, arthersclerosis forms, cad
[] have an moa of: HMG-CoA reductase inhibitor. reduce cholesterol synthesis in liver by inhibiting enzyme that converts HMG-CoA to mevolonate.
rate-limiting step in cholesterol synthesis.`
Statins
what is the MOA of statin
HMG-CoA reductase inhibitor. inhibts rate limiting step in cholesterol synthesis.
what are some pleiotropic effects of statins?
- improve endothelial function
- inhibit platelet aggregation
- decrease LDL oxidation
- reduce vascular inflammation
- stabilize atherosclerotic plaque
what is the clinical use of statins
first line therapy for dislipiemia in primary and secondary prevention CAD
what is the first line therapy for dyslipidemia in primary and secondary prevention of CAD
statins
Statins lower LDL by []%
21-63
statins lower TG by []%
8-37%
statins [] HDL
raise
what are two high intensity statins
- rosuvastatin 20-40
2. atorvastatin 40–80
how much do high intensity statins affect LDL
50%
how much do moderate intensity statins affect LDL
30-49%
how much do low intensity statins affect LDL
< 30%
what intensity is atorvastatin 20
mod.
what intensity is rosuvastatin 10
mod
what intensity is simvastatin 20-40
mod
what intensity if prevastatin 40
mod
what intensity is lovastatin 40
mod
what intensity is fluvastatin
mod
what intensity is atorvastatin 40-80
high
what intensity is rosuvastatin 20-40
high
what intensity is simvastatin 10
low
what intensity is pravastatin 20
low
what intensity is lovastatin 20
low
how would you monitor a patient on statins
- fasting lipids 4-12 weeks after initiation and every 3 months
- 12 months once stable - LFTS
only if symptoms occur (fatigure, loss apetite, abdominal pain, jaundice) - CPK
baseline if pt. at risk for myopathy & in symptomatic pts.
contraindications statins
- liver disease
2. pregnancy
ADR statins
- myalgias
- rhabdo
- GI
- flu-like sx
- increase LFT
- increase rx DM in high dose
- confusion, cognitive impairment
what drug does this SE profile belong to?
- myalgias
- rhabdo
- GI
- flu-like sx
- increase LFT
- increase rx DM in high dose
- confusion, cognitive impairment
Statins
increased risk myopathy if statins are taken with []
other CYP3A4 drugs (except pravastatin, rosuvastatin)
what re some common drug interactiosn with statins
- CCB
- amiodarone
- ketoconazole
- fibric acid derivative
- rifampin
inhib. statin metabolism
what should you counsel your stain pateitns on about diet and statin
a ton of grapefruit juice will impair absorbtion
what are some statin cautions
- age > 75
2. decrease if LDL < 40 on 2 occaisons
MOA exetimibe
cholesterol absorbtion inhibitor, inhibits absorbtion in small intestine
[] is a cholesterol absorbtion inhibitor, inhibits absorbtion in small intestine
ezetimibe
ezetimibde can decrease LDL levels by []%
17
[] can be used second like if stain is not tolerated well, or LDL not controled on statin alone
ezetimibe, either second line or in combo with statin
what is the clinical use ezetimibde
2nd line if statin contI, not tolerated, or not meeting goal
can be added to statins well
[] can be useful in diabetic patients who cannot tolerate high dose statin therapy
ezetimibe
ezetimibe has a formulation mized with []
atorvastatin or simvastatin
what are contraindications ezetimibe
- acute liver disease
2. pregnancy (adverse effects in animals)
what are SE ezetimibe
- HA
- rash
* usually well tolerated
how would you monitor an ezetimibe patient
- fasting lipid panel and LFT at baseline
- +6-8 week after initiation and dose titration
when should ezetimibe be d/c
if ALT > 3x
[] bind bile acid and cholesterol, intestines, and decrease biliary cholesterol absorption
bile acid sequestrants
what is the MOA BAS
bind bile acid and cholesterol in intestines, decrease biliary cholesterol absorption
BAS decrease LDL by []%
15-30
BAD increase HDL by []%
3-5%
what is the clinical use for BAS
LDL lowering after statin and niacin maxed or not tolerated
[] is used when statin and niacin are maxed and pt. still not at goal
BAS
cholestyramine is a []
BAS
Colestipol is a []
BAS
Colesevelam is a []
BAS
what is the ROA BAS
- tablet
- powder
- oral suspension
contraindications BAS
- complete biliary obstruction
- TG > 300
- hyperlipoproteinemia
what drug has these AE
- GI distress
- constipation
- hypernatremia
- hyperchloremia
- impaired fat soluble vitamin absorbtion
BAS
what are some AE BAS
- GI distress
- constipation
- hypernatremia
- hyperchloremia
- impaired fat soluble vitamin absorbtion
what caution is assoc. with BAS
other meds that can cause constipation
-TAC, fiber sup, narcotics
what drug interactions with BAS
can bind other drugs and excrete them,
should take other meds 2-4 hours apart
how should you monitor a patient on BAS
- fasting lipid panel baseline and 6-8 weeks after initiation
- every 6-12 months therefter - d/c if TG exceeds 400 mg/dL while on thereapy
what is the MOA of PCSK9 inhib
binds PCSK9 to prevent degradation of LDL-c receptors,
- maintain functionality of LDL-c receptors that take in LDL from bloodstream into cell
- decrease LDL from circulation
what is the clinical use of PCSK 9 inhib
- heterozygous familial hypercholesteroleemia
2. clnical ASCVD
PCSK9 inhib decrease LDL by [] %
50%
PCSK9 inhib decrease TC by []%
30
PCSK9 inhib decrease lipoprotein []%
26
PCSK9 inhib increase HDL by []%
6
how should you monitor a patient on PCSK9 inhib
- fasting lipid panel
- reassess 4-8 weeks after initiation/titration - assess for hypersensitivity reactions
alirocumad belongs to what class
PCSK9 inhibitor
Evolocumab belongs to what class
PCSK9 inhibitor
contraindication PCSK9 inhib
hypersensitivity
- nasopharyngitis
- flu sx
- increased LFT
- injection site reaction
- myalgia
- cough
side effect profile fo []
PCSK9 inhib.
what is the MOA of bempepoidic acid
ATP citrate lyase inhibitor (ACL)
halts LDL synthesis by inhibiting ACL (higher up on cholesterol synthesis than statin)
what are some indications for bempedoidic acid/ACL inhib.
ASVCD, HeFH
usually in combo with max tolerated statin
bempedoidic acid decreases LDL by [] %
16.5
[] is a prodrug
bempedoidic acid/ACL inhib
drug interactions with bempedoici acid
- antivrials
- max dose simvastatin 20, pravastatin 40
- due to inhibitor OATP…
what drug has the following SE profile
- gout
- tendon rupture
- a fib
- GI distress
- anemia
- leukopenia
- increased BUN/Scr
bempedoidic acid/ACL inh
what drug may cause gout
ACL in /bempedoic acid
what drug may cause tendon rupture
ACL/bempedoic acid
what drug may increase BUN/Scr
ACL in /bempedoic acid
how would you monitor a patient on ACL inhib
- lipid levels 8-12 wk
- uric acid levels
- s/sx tendon rupture
if a pt TG are 174-499 how would you treat?
lifestyle mod
if pt TG are > 500 what do you rec
statin init.
if pt TG > 1,000 what do you rec
very low fat diet
avoid ref carb
avoid alcohol
initiate fibrates/omega-3
[] has an MOA of activating PAR-alpha, the gene that regulates/controls lipid metabolism, reduces hepatic production VLDL and increases lipoprotein lipate-mediated clearance
fibrates
clinical use fibrates
reserved for pt with TG > 500
fibrates decrease tg []%
20-50
fibrates increase HDL [] %
10-20
gemfibrozil is a [] drug
fibrate
fenofibrate is a [] drug
fibrate
fenofibritic acid is a [] drug
fibrate
what is the MOA gemfibrozil
activate PPAR-alpha to reduce TG
contraindications fibrates
- hepatic disease
2. statins, may increase rhabdo
what drug should NOT be mixed with a statin
gemfibrozil
what drug has this side effect profile
- GI upset
- dyspepsia
- rash
- gallstones
- myopathy
- LFT and Scr elevatoin
fibrates
what drug may cause gall stones
fibrates
how would you monitor fibrates
- fastin lipid
- ALT
- CPK if muscle pain
MOA omega 3
inhibit hepatic secretion of TG and promote metabolism TG
omega 3 decreases Tg by [] %
20-30
what is the clinical use of omega 3
- dietary aduvant for very high TG levels
what is a safe dose omega 3
< 3 G
2-4 may be needed
AE omega 3
- GI disturbance
- fishy aftertate
- increased bleeding risk
- worsening glycemic control
- increased LDL
- abnormal LFT
- increased bleeding risk
- worsening glycemic control
- increased LDL
- increased LFT
SE profile of what
omega 3
what drug comes with an increased risk bleeding
omega 3
DI omega 3
- antiplatelets and anticoagulants
* bleeding risk
how to monitor omega 3
- TG baseline
- ALT
- eval GI dis. skin change, bleeding
lovaza belongs to what class
omega 3
omtyg belongs to what glass
omega 3
epanova belongs to what class
omega 3
vascepa belongs to what class
omega 3
MOA inhibit mobilization free fatty acids from peripheral adipose tissue to liver and reduce VLDL synthesis
niacin
what is MOA niacin
inhibit mobilization free fatty acids from peripheral adipose tissue to liver and reduce VLDL synth
niacin decreased tg by [] %
20-50
niacin decreased LDL by [] %
5-25%
niacin increased HDL by [] %
15-35%
what is the clnical use of niacin
if TG > 500
can is niacin sometimes combined with?
- lovostatin
2. simvastatin
how are you monitoring your niacin pt
- CPK if statin
- fasting lipid
- blodo glucose
- uric acid
- lft
niacin with [] increasing myopathy risk
statin or gemfibrozil
interactions with niacin
- statin/gemfibrozil (increased myopathy risk)
- alcohol
- antidiabetic
CI niacin
liver disease
sever gout
peptic ulcer disease
AST/ALT > 2-3x
[] can cause persistent hyperlgycemia, cutaneous symptoms, acute gout
niacin
what drug causes facial flushing
niacin
ADR niacin
- flushing
- hyerglycemia
- hyperuricemia
- upper gi distress
- hepatotox
- myopathy
[] is contraindicated in pregnancy (category x)
statin
[] is category C, no harm in animal studies
niacin
d/c if hyperlipidemia
d/c if hypertriglyceridemia
B/C not systemically absorbed, may interfere with vitamin absorbtion
BAS
[] C harm shown in animal studies, other agents pref.
cholesterol absorbtion inhbit
[] C adverse events observed in animal studies, maternal toxicity rare
fibrates
in a ASCVD pt. less than 75 yoa what is the treatment and what is the goal
high intesnity stain
LDL 50% lowering
clinical ASVCD on max tolerated dose statin, next step
ezetimibde
or PCKS9 if severe risk