Cardio Flashcards
ACE inhibitors
-prils
Indications & Pharmacodynamics
Indications: hypertension, hypertensive proteinuric diabetes, angina, ischemic heart disease, post-MI, heart failure
Pharmacodynamics: lower BP by inhibiting conversion of angiotensin I to angiotensin II (potent vasoconstrictor); inhibit degradation of bradykinin and increase the synthesis of vasodilating prostaglandins
ACE inhibitors
-prils
Caution/contraindications: avoid, caution, pregnancy, interaction, peds
- Avoid: renal artery stenosis; idiopathic or hereditary angioedema
- Caution: renal and hepatic impairment
- Pregnancy/lactation: avoid
- Drug interaction: ARB, aliskiren
- Peds: Limited data for less than 6 years old; 6+ approved
ACE inhibitors
-prils
Adverse fx (8)
Which populations are at higher risk for a certain adverse effect?
- dry cough
- hyperkalemia
- skin rash
- hypertension
- dizziness
- headache
- fatigue
- angioedema
Higher risk of angioedema in african american and asian populations
Angiotensin II Receptor Blockers
-sartans
Indications & Pharmacodynamics
Indications: hypertension, hypertensive proteinuric diabetes, angina and ischemic heart disease, post-MI, heart failure
Pharmacodynamics: block angiotensin II receptors, thus reducing aldosterone secretion, and reducing retention of sodium and water
Angiotensin II Receptor Blockers
-sartans
Caution/contraindications: avoid, caution, pregnancy, interaction, peds
- Avoid in bilateral renal artery stenosis
- Caution: renal and hepatic impairment
- Pregnancy/lactation: avoid
- Drug interactions: ACE inhibitors, caution with other meds that can cause hyperkalemia
- Peds: Approved 6+
Angiotensin II Receptor Blockers
-sartans
Adverse fx (5)
- dizziness
- hypotension
- hyperkalemia
- fatigue
- URI
Calcium Channel Blockers
Dihydropyridines: -pines
Indications & Pharmacodynamics
Indications: hypertension and angina
Pharmacodynamics: inhibits calcium ions from crossing the cell membrane, resulting in marked decrease in transmembrane calcium content and prolonged vascular smooth muscle relaxation
Calcium Channel Blockers
Dihydropyridines: -pines
Caution/contraindications: avoid, caution, pregnancy, peds
- Avoid: significant peripheral edema, unstable angina
- Caution: hepatic impairment
- Pregnancy/lactation: Nifedipine OK, avoid amlodipine
- Peds: 6+
Calcium Channel Blockers
Dihydropyridines: -pines
Adverse fx (8)
- flushing
- dizziness
- HA
- hypotension
- peripheral edema
- gingival hyperplasia
- reflux tachycardia
- nausea
Calcium Channel Blockers
Non-dihydropyridines: veramapil, diltiazem
Indications & Pharmacodynamics
Indications: angina, hypertension, atrial fibrillation, SVT
Pharmacodynamics: inhibit calcium ions from crossing the cell membrane, resulting in a decrease of calcium content, leading to vascular smooth muscle relaxation and coronary vasodilation
Calcium Channel Blockers
Non-dihydropyridines: veramapil, diltiazem
Caution/contraindications: avoid, pregnancy
- Avoid in heart failure with EF less than 40, ventricular dysfunction, SA or AV nodal conduction disturbances, SBP is below 90
- Pregnancy/lactation: Avoid
Calcium Channel Blockers
Non-dihydropyridines: verapamil, diltiazem
Adverse fx (4)
- edema
- HA
- gingival hyperplasia
- constipation
Diuretics
Thiazide diuretics: chlorthalidone, HCTZ, metolazone
Indications & Pharmacodynamics
Indications: hypertension, mild fluid retention
Pharmacodynamics: act on distal renal tubule to inhibit sodium reabsorption
Diuretics
Thiazide diuretics: chlorthalidone, HCTZ, metolazone
Caution/contraindications: caution, avoid, pregnancy, peds
- Caution: gout hx, electrolyte disturbances, hyperlipidemia, diabetes, elderly
- Avoid: renal impairment
- Pregnancy: OK
- Peds: OK
Diuretics
Thiazide diuretics: chlorthalidone, HCTZ, metolazone
Adverse fx (8)
- hypokalemia
- hyperuricemia
- hypotension
- hyponatremia
- hypocalcemia
- hyperglycemia
- dizziness
- increase in cholesterol, LDL and triglycerides
Diuretics
Loop diuretics: furosemide (lasix), bumetainde, torsemide
Indications & Pharmacodynamics
Indications: edema associated with CHF, hepatic cirrhosis, renal disease
Pharmacodynamics: inhibits sodium reabsorption in the ascending loop of Henle
Diuretics
Loop diuretics: furosemide (lasix), bumetainde, torsemide
Caution/contraindications: avoid, caution, pregnancy, peds, interaction
- Avoid in patients who are anuric
- Caution: gout hx, electrolyte disturbances, prior allergic rxn to sulfonamides, elderly
- Pregnancy/lactation: caution
- Peds: OK
- Drug interaction: Sulfa
Diuretics
Loop diuretics: Furosemide (Lasix), bumetanide, torsemide
Adverse fx (5)
- hypokalemia
- hypouricemia
- hypotension
- hyponatremia
- hypercalcemia
Diuretics
Potassium-sparing diuretics: spironolactone, triamterene, eplerenone
Indications & Pharmacodynamics
Indications: edema related to CHF (used in combo with thiazide)
Pharmacodynamics: competes with aldosterone for receptor sites in the distal renal tubules, increasing sodium and water excretion and maintaining potassium
Diuretics
Potassium-sparing diuretics: spironolactone, triamterene, eplerenone
Caution/contraindications: contraindication, caution, pregnancy, peds
- Contraindication: anuria
- Caution: renal and hepatic impairment, electrolyte disturbances, allergy to sulfonylureas
- Pregnancy: caution; lactation: avoid
- Peds: OK if used by specialists
Diuretics
Potassium-sparing diuretics: spironolactone, triamterene, eplerenone
Adverse fx (5)
- hyperkalemia
- gynecomastia
- rash
- hyperuricemia
- hyponatremia
Direct renin inhibitors
Aliskiren
Indications, Pharmacodynamics, pregnancy consideration
- Indications: hypertension
- Pharmacodynamics: Works on the RAAS
- Pregnancy/lactation: caution
Neprilysin inhibitors: Sacubitril valsartan
Indication
- Indications: EF <40%
- Taken in place of ACE or ARB, not given with beta-blockers
Cardiac Glycosides and antiarrhythmics
Amiodarone
Indications & Pharmacodynamics
Indications: atrial fibrillation, atrial flutter
Pharmacodynamics: class III antiarrhythmic agent that inhibits adrenergic stimulation, affects sodium, potassium and calcium channels; prolongs the action potential and refractory period in the myocardium
Cardiac Glycosides and antiarrhythmics
Amiodarone
Caution/contraindications: avoid, pregnancy, peds, monitoring
- Avoid: iodine hypersensitivity, sick sinus syndrome, 2nd to 3rd degree AV block
- Pregnancy/lactation: Cardiology would prescribe
- Peds: approved
- Monitoring: chest x-ray, PFT, TSH, free T4, ophthalmic exam, liver function tests
Cardiac glycosides & antiarrythmics: Amiodarone
What is there an increased risk for developing and why?
Increased risk of development of pulmonary fibrosis & hypo/hyperthyroidism due to action at T3 and T4
Cardiac Glycosides and antiarrhythmics
Amiodarone
Adverse fx (5)
- extrapyramidal syndrome
- hepatic dysfunction
- corneal deposits
- peripheral neuropathy
- extreme burning photosensitivity - can result in blue-gray skin tone
Cardiac Glycosides and antiarrhythmics
Digoxin
Indications & Pharmacodynamics
Indications: a.fib, SVT, heart failure
Pharmacodynamics: selectively inhibits the Na/K pump in myocardial cells, resulting in transient increase in intracellular sodium, promoting calcium influx, which leads to increased contractility; decreases positive inotropic fx, enhances vagal tone and decreases ventricular rate
Cardiac Glycosides and antiarrhythmics
Digoxin
Caution/contraindications: avoid, caution, pregnancy, peds, monitoring
- Avoid: AV block, uncontrolled ventricular arrythmias
- Caution: renal and hepatic impairment, elderly
- Pregnancy/lactation: Consult with OB
- Peds: approved
- Monitoring: narrow TI (1ng/mL), monitor drug levels for toxicity, potassium levels
Cardiac Glycosides and antiarrhythmics
Digoxin
Adverse fx (5)
- fatigue
- anorexia
- nausea
- vomiting
- diarrhea
Cardiac Glycosides and antiarrhythmics
Digoxin
What are signs/symptoms of toxicity?
- Early: visual disturbances - yellow/green halos
- Late: palpitations
Nitrates
What formulation has the quickest onset and how can it be administered?
Sublingual nitroglycerin - may repeat every 5 minutes up to 3 doses
Which nitrates are used for prevention of angina?
- isosorbide dinitrate
- isosorbide mononitrate
Nitrates
Indications & Pharmacodynamics
Indications: sudden angina
Pharmacodynamics: relaxes vascular smooth muscle, dilates coronary vessels and peripheral veins
Nitrates
Caution/contraindications: interaction, pregnancy, peds
- Interaction: Contraindicated with PDE5 inhibitors
- Pregnancy/lactation: consult cardio
- Peds: consult cardio
Nitrates
Adverse fx (3)
- HA
- hypotension
- flushing tachycardia
Peripheral vasodilators
Sodium channel inhibitor: Ranolazine
Indications & Pharmacodynamics
Indications: refractory cases of angina
Pharmacodynamics: inhibits late phase of sodium current, improving O2 supply and demand
Peripheral vasodilators
Sodium channel inhibitor: Ranolazine
Caution/contraindications: other consideration, interactions
- Other consideration: Anti-anginal fx considerably less in women than men
- Drug interactions: CYP inducers (St Johns wort), antifungals, agents that prolong the QT interval
Vasodilators
Hydralazine
Indications & Pharmacodynamics
Indications: hypertension, heart failure
Pharmacodynamics: acts by direct relaxation and dilation of arteriolar smooth muscle, leading to a decrease in peripheral vascular resistance
Vasodilators
Hydralazine
Caution/contraindications: avoid, caution, pregnancy, peds
- Avoid: CAD, hypertension and heart failure
- Caution: renal impairment, mitral valvular disease
- Pregnancy: caution; lactation: OK
- Peds: more data needed
Vasodilators
Hydralazine
Adverse fx (9)
- HA
- tachycardia
- palpitations
- angina
- nausea
- orthostatic hypotension
- peripheral edema
- dizziness
- rare lupus like syndrome
Antilipidemics
HMG CoA reductase inhibitors
-statins
Effects on triglyceride levels (LDL, HDL, trigylcerides)
- greatest reduction on LDL
- modest increase in HDL
- modest decrease on triglycerides
Antilipidemics
HMG CoA reductase inhibitors
-statins
Pharmacodynamics
Pharmacodynamics: block the conversion of HMG-CoA to mevalonate, which is the rate-limiting step in the production of cholesterol in the liver; blocking cholesterol production leads to an increase in the number of LDL receptors in the liver, allowing for a larger amount of LDL and VLDL to be taken up by the liver
Antilipidemics
HMG CoA reductase inhibitors
-statins
Caution/contraindications: avoid, interactions, other considerations, pregnancy, peds
- Avoid: active liver disease, unexplained persistent elevations of serum transaminases
- Interactions: avoid grapefruit juice
- Other considerations: Should be taken in the evening
- Pregnancy/lactation: avoid
- Peds: limited data younger than 10
Antilipidemics
HMG CoA reductase inhibitors
-statins
Adverse fx (6)
- myalgia
- arthralgia
- diarrhea
- nausea
- abdominal pain
- HA
Antilipidemics
Niacin
Effects on triglyceride levels (3)
- Moderate decrease in LDL
- greatest increase in HDL
- moderate decrease in triglycerides
Antilipidemics
Niacin
What is important to be aware of regarding this medication as a prescriber?
No longer approved by the US FDA for use in lipid management due to ADRs stronger than the benefit
Antilipidemics
Niacin
Caution/contraindications: avoid, pregnancy, peds
- Avoid: hepatic dysfunction, uncontrolled diabetes, gout, new onset a.fib, active peptic ulcers
- Pregnancy/lactation: avoid
- Peds: limited data
Antilipidemics
Niacin
Adverse fx (5)
- flushing
- pruritis
- rash
- diarrhea
- hepatotoxicity
Antilipidemics
Fibrates: Gemfibrozil, fenofibrate
Indications & Pharmacodynamics
Indications: high triglyceride levels (400+), once reach 300 switch to statin
Pharmacodynamics: increase lipolysis of triglycerides via lipoprotein lipase, resulting in a large decrease in triglyceride, thus increasing HDL
Antilipidemics
Fibrates: Gemfibrozil, fenofibrate
Effects on triglyceride levels (LDL, HDL, triglycerides)
- mild decrease in LDL
- moderate increase of HDL
- greatest decrease in triglycerides
Antilipidemics
Fibrates: Gemfibrozil, fenofibrate
Caution/contraindications: avoid, pregnancy, peds, interactions
- Avoid: severe renal impairment, active liver disease, pre-existing gallbladder disease, unexplained persistent elevations of serum transaminases
- Pregnancy/lactation: avoid
- Peds: avoid younger than 18
- Interactions: avoid with statins
Antilipidemics
Fibrates: Gemfibrozil, fenofibrate
Adverse fx (4)
- increased serum transaminases
- dyspepsia
- abdominal pain
- diarrhea
Antilipidemics
Bile-acid sequestrants: cholestyramine
Effects on triglycerides (LDL, HDL, triglycerides)
- Moderate decrease in LDL
- mild increase in HDL
- mild increase in triglycerides
Antilipidemics
Bile-acid sequestrants: cholestyramine
Indications & Pharmacodynamics
Indications: patients with low cardiovascular risk profile and moderately elevated LDL
Pharmacodynamics: forms a nonabsorbable complex with bile acids in the intestine; inhibits enterohepatic reuptake of intestinal bile salts, resulting in increased fecal removal of LDL cholesterol
Antilipidemics
Bile-acid sequestrants: cholestyramine
Caution/contraindications (5)
- Avoid: complete biliary obstruction, patients with triglyceride levels of 300+
- Caution: renal impairment
- Interactions: can impact absorption of other meds, separate admin
- Pregnancy/lactation: recommended treatment for hyperlipidemia
- Peds: limited data
Antilipidemics
Bile-acid sequestrants: cholestyramine
Adverse fx (4)
- flatulence
- bloating
- abdominal pain
- constipation
Antilipidemics
Cholesterol absorption inhibitors: Ezetimibe
Effects on triglyceride levels (LDL, HDL, triglycerides)
- mild decrease in LDL
- mild increase in HDL
- mild decrease in triglycerides
Antilipidemics
Cholesterol absorption inhibitors: Ezetimibe
Indication & Pharmacodynamics
Indication: modest LDL decrease, best in combo with statin
Pharmacodynamics: blocks the absorption of cholesterol across the intestinal border; decreased delivery of cholesterol to the liver, reduction in hepatic-cholesterol stores, increased clearance of cholesterol from the bloodstream
Antilipidemics
Cholesterol absorption inhibitors: Ezetimibe
Caution/contraindications: avoid, caution, pregnancy, peds
- Avoid: active liver disease, unexplained persistent elevations of serum transaminases
- Caution: renal and hepatic impairment
- Pregnancy/lactation: avoid
- Peds: limited data younger than 10
Antilipidemics
Cholesterol absorption inhibitors: Ezetimibe
Adverse fx (4)
- fatigue
- diarrhea
- increased serum transaminases
- arthralgia
Antilipidemics
PCSK9 inhibitors: Evolocumab
Effects on triglyceride levels (LDL, HDL, triglycerides)
- greatest decrease in LDL
- moderate increase in HDL
- mild decrease in trigylcerides
Antilipidemics
PCSK9 inhibitors: Evolocumab
Pharmacodynamics
Pharmacodynamics: human monoclonal antibody that binds to PCSK9 inhibitors, inhibits binding of PCKS9 to LDL receptors which allows for increased LDL receptors on the cell surface, therefore decreasing LDL in the blood stream