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Systemic-Smith Cardio
N/A
112
Medical
Graduate
04/13/2012

Additional Medical Flashcards

 


 

Cards

Term
Differentiate between Stage A and Stage B of Heart Failure
Definition

A: Risk factors but no structural disease or symptoms

B: Structural disease, no symptoms/signs

Term
Describe Stage C of Heart failure
Definition
Current or past symptoms of heart failure, like shortness of breath
Term
Describe Stage D of heart failure
Definition
Pt's have refractory heart failure-are usually maximally medicated and measures must be taken to keep their heart going. 
Term
Name the 3 Big causes of Heart failure
Definition

Ischemic Heart Disease

Cardiomyopathy (dilated)

HTN

Term
Name 4 common causes of Left-sided heart failure
Definition

Ischemic heart disease (most common)

HTN (chronic or malignant)

Aortic/mitral valve disease

Cardiomyopathies

Term
Name 4 common causes of Right-sided heart failure
Definition

Left heart failure

COPD

Pulmonary emboli

Tricuspid/pulmonic valve disease

Term
Which type of heart failure is associated with decreased contractility or increased afterload?
Definition
Systolic Heart Failure
Term
Explain what is occuring in the heart chambers during Diastolic heart failure
Definition

There is impaired active relaxation of the chambers during diastole, due to impaired Ca+ reuptake into sarcoplasmic reticulum.

This leads to abnormalities in passive filling

 

Term
What do catecholamines do when they are considered to have an inotropic effect?
Definition
They increase the force of contraction
Term
What do catecholamines do when they are considered to have a chronotropic effect?
Definition
They increase the rate of contraction
Term
Differentiate between compensatory and decompensatory heart failure
Definition

The heart adopts certain methods to deal with problems.

If these methods are successful and the heart does not fail it is termed compensatory heart failure.

If the heart adopts methods but they are not enough to prevent heart failure then it is termed decompensatory.

Term
Name 3 Compensatory mechanisms the heart may adopt
Definition

Catecholamine release (force and rate of contraction)

Hypertrophy

Dilation of ventricle (increased stretching and thus force of contraction)

Term
Define orthopnea
Definition
Difficulty breathing when lying on your back
Term
Name 2 major signs of heart failure
Definition

1. Progressive breathlessness

2. Pulmonary problems (like edema,congestion, rales etc. )

Term
What part of the heart causes heart sound S1?
Definition
Closure of mitral and tricuspid valves
Term
What causes heart sound S2?
Definition
Closure of pulmonic and aortic valves
Term
What causes heart sound S3?
Definition

ABNORMAL HEART SOUND in older pts

Early diastolic, rapid filling of dilated ventricles creates sound

Term
What causes Heart sound S4?
Definition

ABNORMAL HEART SOUND

late diastolic sound caused by loss of compliance of hypertrophied and subsequently stiff ventricle. Atrium needs an extra little push to get all the blood into the ventricles.

Term
Which heart sound is called the ventricular gallop?
Definition
S3
Term
Which heart sound is called Atrial Gallop?
Definition
S4
Term
Name 4 methods of diagnosing heart failure
Definition

EKG

Chest radiograph

Echocardiogram

Cardiac catheterization

Term
Which portion of the heart is specifically assessed with cardiac catheterization?
Definition
Heart valves
Term
What might the dr specifically look for in Echocardiograms?
Definition
Look for enlargement and valvule disease
Term
Which drug class are Captopril, lisinopril and enalapril?
Definition
Angiotensin Converting Enzyme Inhibitors
Term
Which drug class are Losartan, Valsartan, Candesartan and Ibersartan?
Definition

ARBs 

Angiotensin II Receptor Blockers

Term
Name 2 drug classes that are first choice for treating patients with Stage B heart failure
Definition

ACEI

ARBs

(might also be on a beta blocker)

Term
What is one advantage of ARBs over ACEI?
Definition
ARBs do not produce a cough like ACEIs do
Term
What effect of ARBs and ACEIs is helpful in treating heart failure?
Definition

lowers venous pressure

lowers systemic vascular resistance

decreases circulating catecholamines

Term
In addition to the same therapy as Stage B, what might be given to patients with Stage C heart failure?
Definition

Diuretics (reduce blood volume and thus demand on the heart)

Cardiac glycosides (increase contractility)

Term
Give an example of a cardiac glycoside that might be given to a pt in STage C
Definition
Digoxin
Term
Name 5 treatment methods for Stage D heart failure
Definition

Inotropes 

Biventricular pacemaker

Implantable cardioverter-defibrillator (ICD)

Left ventricular assist device (LVAD)

Transplantation

Term
What drug class may be used as an inotrope in Stage D?
Definition

Beta-adrenergic agonists

(possibly dopamine)

Term
Describe what occurs in the vessel in atherosclerosis
Definition
Inflammation of intima of large and medium sized arteries narrows the vessels
Term
Describe the difference in transport of lipids between  LDLs and HDLs
Definition

LDLs-lipids from liver to body

HDLs-lipids from cells to liver for excretion

Term
How is the disease process of Atherosclerosis initiated?
Definition

Injury to the vessel wall increases permeability

LDLs accumulate

Term
What triggers the inflammatory process of atherosclerosis?
Definition

When LDLs accumulate they are oxidized by endothelial cells.

Macrophages then enter the vessel wall to take care of the oxidized LDL particles

Term
Describe the changes in macrophages after they have entered the vessel wall (in atherosclerosis)
Definition

They take up oxidized LDL particles, grow in size and become foam cells.

These foam cells accumulate, forming a convex surface that increases shear stress.

Term
How do macrophages compound the problem of atherosclerosis?
Definition

1. When they become foam cells they continue to release substances that further damage the site.

2. Along with platelets they secrete growth factors that cause migration and proliferation of smooth muscle cells.

 

This creates a fibrotic cap over a lipid-rich core.

Term
Name 3 lab tests that might be done in diagnosis of atherosclerosis
Definition

Fasting total serum cholesterol

HDLs

Serum highly sensitive C-Reactive Protein (hs-CRP)

Term
What is the desirable level of Total cholesterol?
Definition
< 200 mg/dL
Term
Approx what should HDL levels be at?
Definition
>50 mg/dL
Term
Approx. what level should LDLs be at?
Definition
<150 mg/dL
Term
Approx. what level should Triglycerides be at?
Definition
< 150 mg/dL
Term
What approx ratio of HDL/TC is desired?
Definition
25%
Term
What does hs-CRP indicate?
Definition
highly-sensitive C-reactive protein indicates inflammation in the body
Term
Which drug category acts by inhibiting HMG CoA reductase and subsequently inhibits cholesterol production?
Definition
Statins
Term
Which drug class works by binding cholesterol and bile and excreting it and preventing it's absorption into circulation?
Definition
Bile acid binders
Term
Which drug class is used to lower triglycerides and slightly increase HDLs?
Definition

Fibrates

(PPAR-alpha agonists)

Term
Which drug is good for lowering total cholesterol, LDL and triglyceride levels?
Definition
Nicotinic acid (vit B)
Term
Name 4 types of drugs used to decrease risk of atherosclerosis
Definition

Statins

Bile acid Binders

Fibrates

Nicotinic acid

Term
Which drugs are contraindicated for patients on Statins?
Definition
Erythromycin and clarithromycin because they increase Statin levels in the blood.
Term
What complication may arise with use of bile-acid binders?
Definition
They may interfere with absorption of other drugs (like b-blockers, APAP, tetracyclines, cephalosporins and oral contraceptives)
Term
Which 2 cholesterol lowering drugs may also decrease incidence of Diabetic nephropathy?
Definition

Statins

Fibrates

Term
Name 2 optometric considerations associated with nicotinic acid
Definition

Macular edema

Toxic amblyopia

Term
Of all the Statin drugs listed, which may actually be able to decrease atherosclerotic plaques (whereas all the others just try to stop it from progressing)
Definition
Rosuvastatin
Term
Name 2 contraindications of Statins
Definition

Liver dysfunction

Pregnancy

Term

What drug class do 

Cholestyramine

Cholestipol

Colesevelam

fall in?

Definition
Bile acid binders
Term
Which cholesterol-lowering drug may increase risk of gallstones, anemia and bleeding?
Definition
Fibrates
Term
What pathophysiology of ischemic heart disease is different in women than in men?
Definition

Women have smaller coronary arteries, and thus they produce less NO --> decreased dilation

Endothelial dysfunction

Term
Why is it so important to understand the differences in ischemic heart disease between women and men?
Definition

The stereotypical signs of this are those that happen in men, thus it is less likely to be diagnosed in a woman.

Women are much more likely to die from an MI than men. 

Term
What is the clinical term for chest pain that results from transient myocardial ischemia?
Definition
Angina pectoris
Term
Differentiate between Stable and variant angina
Definition

Variant=fixed atherosclerotic lesion combined with a vasospastic episode

Stable-just the fixed atherosclerotic lesion

Term
Name 4 types of medical therapy for management of Angina Pectoris
Definition

1. ASA q.d

2. Nitrates (dilation)

3. B-blockers 

4. Ca channel blockers (dilation and prevention of spasm)

Term
Name 2 methods of surgical intervention in treatment of AP
Definition

1. Percutaneous coronary intervention (PCI-balloon and stent)

2. Coronary Artery Bypass Grafting (CABG)

Term
What 3 conditions are included under the name Acute Coronary Syndromes?
Definition

Unstable angina

Non-ST-elevation myocardial infarction (NTSEMI)

ST-elevation myocardial infarction (STEMI)

 

Term
Name 4 mechanisms common to all Acute coronary syndromes (ACS)
Definition

Rupture/erosion of fibrous cap of coronary artery cap

Platelet aggregation/adhesion

Thrombus formation/vasoconstriction

Embolization

Term
What is a differentiating factor between stable and non-stable angina?
Definition
The presence of 'rest' pain is present in unstable angina (pre infarction angina)
Term
How is NSTEMI differentiated from unstable angina?
Definition
Presence of cardiac enzymes indicates the blockage has progressed to NSTEMI
Term
Describe the degrees of blockage in the 3 Acute Coronary Syndromes
Definition

1. Unstable angina- no blockage, but thrombus can break off at any time-progressive luminal narrowing

2. NSTEMI-Partial occlusion of coronary artery

3. Total occlusion of coronary artery (myocardial infarction)

Term
What happens to the heart chambers with aortic stenosis?
Definition

There is pressure overload on the left ventricle since it can't get all the blood past the aortic valve.

Leads to hypertrophy of the left ventricle.

Term
What heart sounds are indicative of aortic stenosis?
Definition

Soft S2 sound due to lack of aortic component (just pulmonary valve can be heard)

Development of S4 sound (due to hypertrophy)

Term
Name 3 symptoms/progressions of aortic stenosis
Definition

Angina

Syncope with exercise

Heart Failure

Term
What is a major cause of mitral valve stenosis?
Definition
Rheumatic heart disease
Term

Why does mitral stenosis result in pulmonary congestion?

How does it affect the atria?

Definition

The problem with the mitral valve impedes blood flow into the left ventricle, causing a back up into pulmonary circulation.

This increases the demand on the atria to propel the blood. It is not that strong in the first place and can thus result in failure. 

 

Term
Name 2 major symptoms of pulmonary problems?
Definition

Shortness of breath

cough

Term
Define Ascites
Definition
Accumulation of fluid in the abdomen-->anorexia
Term
Why might Mitral stenosis cause embolization
Definition
Blood stagnates when it is unable to leave the chamber, it begins to clump together. Can cause an embolus when it finally gets out of the heart
Term
What heart sound might be associated with mitral stenosis?
Definition
Diastolic murmur
Term
Name 3 causes of aortic regurgitation
Definition

Idiopathic aortic root dilation

Rheumatic heart disease

Collagen vascular disease

Term
How does the heart try to compensate for aortic regurgitation?
Definition
Increases strength of contraction to try to get rid of blood. 
Term
Describe what you moght observe when checking the pulse and BP of an individual with aortic regurgitation.
Definition

Increased pulse pressure (pounding pulse)

Pt will have high systolic pressure and low diastolic pressure

Term
Which problem with the heart is assocaited with dyspnea, orthopnea and paroxysmal nocturnal dyspnea?
Definition
Left ventricular failure
Term
What is Quincke's sign?
Definition
capillary pulsation in nail beds
Term
What is De Musset's sign?
Definition
head bobbing with each heartbeat
Term
Name 3 signs of aortic regurgitation
Definition

Increased left ventricular size

Quincke's sign

De Musset's sign

Term
Name 4 causes of mitral valve regurgitation
Definition

Mitral valve prolapse

coronary artery disease

rheumatic heart disease

ruptured chordae tendinae

Term
What chamber of the heart is first affected by mitral regurgitation?
Definition
The left atria-blood backs up in it since some gets pushed back in whenever the left ventricle contracts. 
Term
Name 4 types of medical therapy used to treat valvular dysfunction
Definition

Diuretics

Digitalis

Anticoagulants

Vasodilators (reduce resistance)

Term
Briefly describe what occurs in a valve autograft (replacement)
Definition
The pulmonic valve is moved to replace the aortic valve, and a homograft is used to replace the pulmonic valve.
Term
What is the most common bacterial cause of infective endocarditis?
Definition
Staph. aureus
Term
What is the most common fungal cause of infective endocarditis?
Definition
Candida albicans
Term
Name 2 ocular manifestations of infective endocarditis
Definition

1. Splinter hemorrhages of conj

2. Roth spots

Term
What is done prior to invasive procedures to prevent the development of infective endocarditis?
Definition
prophylactic antibiotics
Term

Which antibiotic is used for prophylactic prevention of endocarditis?

What if the pt is allergic to penicillins?

Definition

2-3 mg Amoxicillin 1 hour before

Clindamicin  600mg if allergic

Term
What term is used to describe conditions that are primary diseases of the heart and are not secondary to increased pressure?    
Definition
Cardiomyopathies
Term
Name 2 types of medical therapy used to treat hypertrophic cardiomyopathy
Definition

Beta blockers

Digitalis (end stage)

Term
Name 3 types of surgery for treating hypertrophic cardiomyopathy
Definition

Myomectomy (reduce thickness of septum)

Pacemaker and defibrillator implantation

Intentional septal infarction

Term
What is the proper term for 'Broken Heart Syndrome'?
Definition
Takotsubo cardiomyopathy
Term
What triggers Takotsubo cardiomyopathy and who tends to  experience it?
Definition
Mostly experienced by women, triggered by emotional stress. 
Term
Differentiate between Mi and Takotsubo's
Definition

Same symptoms, different signs

Takotsubos will not have cardiac enzyme elevation (or only slightly), EKG will be normal.

Takosubos will have an odd type of left ventricular ballooning

Term
Name 7 possible causes of Acute pericarditis
Definition

MI

viral

SLE

Infectious endocarditis

Malignancy

Radiation

Drugs

Term
Name 2 clinical features of Acute pericarditis
Definition

1. Inspiratory chest pain on left side

2. Friction rub during systole and diastole

Term
How is Acute pericarditis treated?
Definition

1. Treat underlying/causative problem

2. NSAIDs, colchicine, steroids

Term
What is pericardial effusion?
Definition
Fluid accumulation secondary to pericarditis
Term
What clinical features are associated with pericardial effusion?
Definition

no symptoms

just soft heart sounds due to extra fluid dampening the sound

Term
What is cardiac tamponade?
Definition

As a result of pericarditis there is rapid accumulation of fluid. 

This fluid compresses the heart, inhibiting filling

Term
How is Cardiac tamponade detected and treated?
Definition

There will be decreased systolic pressure during inspiration and the patient may be in shock.

Treated by pericardiocentesis

Term
What causes constrictive pericarditis
Definition
Previous inflammation produces a thickened pericardium
Term
Name 8 symptoms/signs of carotid TIA
Definition

1. Hollenhorst plaques

2. Amaurosis fugax

3. Some sort of paresis or numbness

4. Ataxia

5. Aphasia

6. Dysarthria

7.Diplopia

8. Vertigo

Term
What do endarectomies treat?
Definition

They are an option after a carotid TIA

-Plaque is removed from the carotid artery

Term
What is the best management for patients with <75% carotid artery occlusion?
Definition
Aspirin
Term
What are the 5 P's associated with Peripheral arterial disease?
Definition

Pain

Pallor

Paralysis

Pulselessness

Paresias

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