Dyslipidemia Flashcards
Types of dyslipidemia?
Primary (familial)
Secondary (acquired)
What’s a major risk factor for the development of coronary heart dx (CHD)?
Abnormalities of plasma lipoproteins resulting in predisposition to coronary, cerebrovascular, and peripheral arterial dx
List the secondary causes of hyperlipidemia
Diet - saturated or Trans fat
Drugs - diuretics, cyclosporine, Tacrolimus, glucocorticoids,
amiodarone
Diseases - biliary obstruction, nephrotic syndrome
Disordered & altered states of metabolism - hypothyroidism obesity etc
What’s the formula to calculate LDL if pt didn’t fast? When can’t this formula be used?
Friedewald eqn: LDL = TC - HDL - (TG/5)
Can’t be used when TG is > 400mg/dL
List natural pdts used for dyslipidemia
Red yeast rice
Garlic
OTC fish oils (used to lower TG when TG is >= 500)
Plant sterols/stanols
When is OTC fish oils used in dyslipidemia?
used to lower TG when TG is >= 500
What’s the key point of the new ATP guidelines!
There’s no evidence to support continued use of specific LDL or HDL tx targets.
Statins (primarily). Dosed at the appropriate intensity, are used in at-risk pts
When do u use nonstatin therapies in dyslipidemia?
When statins are NOT tolerated
What’re the 4 key pt groups for statin benefit?
Clinical atherosclerotic cardiovascular dx (ASCVD), including coronary heart dx (ACS, S/P MI, stable or unstable angina, coronary or other arterial revascularization), stroke, TIA, or peripheral artery dx thot to be of atherosclerotic origin
Primary elevations of LDL >= 190mg/dL
Diabetes + 40-75 yrs of age + LDL btw 70-189 mg/dL
40-75 yrs + LDL btw 70-189 mg/dL + estimated 10-yr ASCVD risk of >= 7.5% (using global risk assessment)
In what dx states should statin therapy by initiated?
Clinical atherosclerotic cardiovascular dx (ASCVD), including coronary heart dx (ACS, S/P MI, stable or unstable angina, coronary or other arterial revascularization),
stroke,
TIA,
peripheral artery dx thot to be of atherosclerotic origin
Whats the value of LDL req to start statin therapy?
Primary elevations of LDL >= 190mg/dL
What’s the other criteria that goes along with diabetes to start statin?
Diabetes \+ 40-75 years \+ LDL btw 70-189mg/dL
What’s the other criteria that goes along with 10yr ASCVD to start statin?
40-75 yrs \+ LDL btw 70-189 mg/.dL \+ Estimated 10-yr ASCVD risk >= 7.5% (using the global risk assessment tool)
Other factors may be useful in making a decision to start statin, if the 4 key factors results in inconclusive decision
Wrt LDL?
LDL >= 160mg/dL
Or
Other evidence of genetic hyperlipidemia
Other factors may be useful in making a decision to start statin, if the 4 key factors results in inconclusive decision
Wrt FH?
FH of premature ASCVD with onset
< 55 yrs in a first degree male relative
Or
< 65 yrs in first degree female relative
Other factors may be useful in making a decision to start statin, if the 4 key factors results in inconclusive decision
Wrt C-reactive protein?
High sensitivity C-reactive protein > 2 mg/dL
Other factors may be useful in making a decision to start statin, if the 4 key factors results in inconclusive decision
Wrt coronary artery Ca score?
Coronary artery Ca score >= 300 Agatston units
Or
>= 75 percentile for age, sex and ethnicity
Other factors may be useful in making a decision to start statin, if the 4 key factors results in inconclusive decision
Wrt Ankle Brachial index?
Ankle Brachial index < 0.9
What’s the 10-yr ASCVD score that indicates statin therapy needs to be started?
> = 7.5%
What statin tx should be started in primary elevation of LDL >= 190mg/dL?
High-intensity statin
What statin tx should be started in Diabetes + 40-75yrs + LDL btw 70-189mg/dL + estimated 10-yr ASCVD risk < 7.5%?
Moderate-Intensity statin
What statin tx should be started in 40-75yrs + LDL btw 70-189mg/dL + estimated 10-yr ASCVD risk < 7.5%?
Consider risk benefit
What statin tx should be started in 40-75yrs + LDL btw 70-189mg/dL + estimated 10-yr ASCVD risk >= 7.5%?
Moderate-to-high intensity
What statin tx should be started in Clinical atherosclerotic cardiovascular dx ASCVD risk < = 75yrs?
High-intensity statin
What statin tx should be started in Clinical atherosclerotic cardiovascular dx ASCVD risk > 75yrs?
Moderate-intensity statin
List conditions that req High-intensity statin
Primary elevation of LDL > 190mg/dL
Diabetes + 40-75yrs + LDL btw 70-189mg/dL + estimated 10-yr ASCVD risk >= 7.5%
Clinical atherosclerotic cardiovascular dx ASCVD risk < = 75yrs (2nd prevention)
What statin tx should be started in Diabetes + 40-75yrs + LDL btw 70-189mg/dL + estimated 10-yr ASCVD risk >= 7.5%?
High-intensity
List conditions that req Moderate-to-High intensity statin
40-75yrs + LDL btw 70-189mg/dL + estimated 10-yr ASCVD risk >= 7.5%
List conditions that req Moderate-intensity statin
Diabetes + 40-75yrs + LDL btw 70-189mg/dL + estimated 10-yr ASCVD risk < 7.5%
Clinical atherosclerotic cardiovascular dx ASCVD risk > 75yrs
List high-intensity statins
Atorvastatin (Lipitor) 40-80 mg daily
Rosuvastatin (Crestor) 20-40 mg daily
Effect of high-intensity statins (Atorvastatin (Lipitor) 40-80 mg/d and Rosuvastatin (Crestor) 20-40 mg/d) on LDL?
Reduces LDL >= 50%
List moderate-intensity statins
Atorvastatin (Lipitor) 10-20 mg/d Rosuvastatin (Crestor) 5-10 mg/d Simvastatin 20-40 mg/d Pravastatin 40-80 mg/d Lovastatin 40 mg/d Fluvastatin XL 80 mg/d Fluvastatin 40 mg bid Pitavastatin 2-4 mg/d
Effect on moderate-intensity statin on LDL?
Daily dose reduces LDL 30-40%
List low-intensity statins
Simvastatin 10 mg/d Pravastatin 10-20 mg/d Lovastatin 20 mg/d Fluvastatin 20-40 mg/d Pitavastatin 1mg/d
What criteria is needed to use non-pharmacologic therapy?
Adults < 80yrs +/- CVD
Increase Vegs, fruits, and whole grains
True
Calories from saturated fat (non-pharmacologic therapy)?
5-6% of calories from saturated fat
Reduce % of calories from Trans fat
Aerobic activity (non-pharmacologic therapy)?
3-4 session/wk; lasting 40 mins/session + moderate-to-vigorous intensity
Effect of increased physical activity on LDL?
Can reduce LDL 3-6 mg/dL
Preferred BMI (non-pharmacologic therapy)?
18.5 - 24.9 kg/m2
Tobacco pdt (non-pharmacologic therapy)?
Avoid tobacco pdts
What’s the drug of choice in treating elevated LDL?
Statins
What’s used to determine appropriate statin intensity chosen?
Pts level of risk
What SE is common to many of the drugs used in dyslipidemia?
Potentially hepatotoxic
T4 liver enzymes should be monitored
When should dyslipidemia therapy be d/c?
AST (8-48 units/L)
Or
ALT (7-55 units/L)
Become > 3 times the upper limit of normal
Mgt of mild-to-moderate muscle sx associated with statin use?
D/c statin and evaluate sx
Check for other conditions/ meds that can cause muscle damage
Restart, if sx resolves
MOA of statins?
Inhibit the enzyme 3-hydroxy-3-methylglutaryly coenzyme (HMG-CoA) reductase
Thus prevention conversion of HMG-CoA to mevalonate
What’s the rate-limiting step in cholesterol synthesis?
Conversion of HMG-CoA to mevalonate (which is the step prevented by statins)
List main statins
Atorvastatin (Lipitor)
Simvastatin (zocor)
Rosuvastatin (Crestor)
Pravastatin (Pravachol)
Lovastatin (Mevacor, Altoprev)
Fluvastatin (Lescol, Lescol XL)
Pitavastatin (Livalo)
What’s the brand name of Atorvastatin?
Lipitor
What’s the brand name of Simvastatin + Ezetimibe?
Vytorin
Whats the brand name of Rosuvastatin?
Crestor
What’s the equivalent dose of Atorvastatin (Lipitor)?
10mg
What’s the equivalent dose of Simvastatin (Zocor)?
20mg
What’s the equivalent dose of Rosuvastatin (Crestor)?
Equiv dose = 5 mg
What’s the equivalent dose of Lovastatin and Pravastatin?
40 mg