Therapy of Chronic Heart Disease Flashcards
Heart failure (HF) is a progressive clinical syndrome associated with:
Impairment of the ability of the ventricle to fill with or eject blood
HF may be caused by an abnormality in:
1) Systolic function
2) Diastolic function
3) Both
What are the leading causes of HF?
1) Coronary artery disease
2) Hypertension
In heart failure with reduced ejection fraction (HFrEF) there is a decrease in:
Cardiac output
What compensatory responses happen due to heart failure with reduced ejection fraction (HFrEF)?
1) Activation of the sympathetic nervous system (SNS) and the renin–angiotensin–aldosterone system (RAAS)
2) Vasoconstriction
3) Sodium and water retention
4) Ventricular hypertrophy and remodeling
Pharmacotherapy targeted at ____ has slowed the progression of HFrEF and improved survival.
Antagonizing the neurohormonal activation
Heart failure with preserved ejection fraction (HFpEF) is primarily due to:
1) Diastolic dysfunction
2) Disturbances in relaxation
What are the causes of systolic dysfunction (decreased contractility)?
1) Reduction in muscle mass (MI)
2) Dilated cardiomyopathies
3) Ventricular hypertrophy
4) Pressure overload (systemic or pulmonary hypertension, aortic or pulmonary valve stenosis)
5) Volume overload (valvular regurgitation, shunts, high-output states)
What are the causes of diastolic dysfunction (restriction in ventricular filling)?
1) Increased ventricular stiffness
2) Ventricular hypertrophy (hypertrophic cardiomyopathy, others)
3) Infiltrative myocardial diseases (amyloidosis, sarcoidosis, endomyocardial fibrosis)
4) Myocardial ischemia and infarction
5) Mitral or tricuspid valve stenosis
6) Pericardial disease (pericarditis, pericardial
tamponade)
What are the factors precipitating/exacerbating
heart failure?
1) Cardiac events
2) Noncardiac events
3) Nonadherence with prescribed HF medications or with dietary recommendations
4) Drugs
How can drugs precipitate or exacerbate HF?
1) Negative inotropic effects
2) Direct cardiotoxicity
3) Increased sodium and/or water retention
Which drugs have negative inotropic effects?
1) Antiarrhythmics
2) Beta-blockers
3) Calcium channel blockers
Which Antiarrhythmics have negative inotropic effects?
1) Disopyramide
2) Flecainide
3) Propafenone
Which Beta-blockers have negative inotropic effects?
1) Propranolol
2) Metoprolol
3) Carvedilol
Which Calcium channel blockers have negative inotropic effects?
1) Verapamil
2) Diltiazem
Which drugs can cause cardiotoxicity?
1) Doxorubicin
2) Epirubicin
3) Daunomycin
4) Ethanol
5) Cyclophosphamide
6) Trastuzumab
7) Bevacizumab
8) Ifosfamide
9) Lapatinib
10) Sunitinib
11) Imatinib
12) Amphetamines
13) Cocaine
Which drug contains high sodium?
Ticarcillin disodium
Which drugs can cause sodium and/or water retention?
1) NSAIDs
2) COX2-inhibitors
3) Rosiglitazone
4) Pioglitazone
5) Glucocorticoids
6) Androgens and Estrogens
7) High dose Salicylates
8) High sodium-containing drugs
___ and _____ are part of
CHF therapy.
Medication history; Discontinuation of medications known to exacerbate HF
What are key elements in the pathogenesis of progressive myocardial failure?
Left ventricular hypertrophy and remodeling
Ventricular remodeling is a broad term describing:
Changes in both:
1) Myocardial cells
2) Extracellular matrix
= changes in the size, shape, structure, and function of the heart.
What is the normal shape of the left ventricle?
Ellipse
What is the shape of the left ventricle after remodeling?
Sphere
The change in ventricular size and shape during remodeling further:
1) Depresses the mechanical performance of the heart
2) Increases regurgitant flow through the mitral valve
3) Sustains progression of remodeling