Cardio Flashcards

0
Q

Which category of non ischemic cardiomyopathies makes up 90%?

A

Dilated

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1
Q

What are the 3 major categories of cardiomyopathies?

A

Dilated, hypertrophic, restrictive

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2
Q

…. cardiomyopathy is characterized by enlargement and dilatation of all four chambers of the heart.

A

dilated

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3
Q

Many of these cases have no known etiology and are referred to as idiopathic cardiomyopathy.

A

dilated

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4
Q

The most common cause of non-ischemic dilated cardiomyopathy in the U.S. is

A

chronic alcoholism

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5
Q

(Cardiomyopathy) nonspecific cellular abnormalities, including variations in myocyte size, myocyte vacuolation, loss of myofibrillar material and/ or fibrosis.

A

Dilated

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6
Q

Cardiomyopathy characterized by myocardial hypertrophy, abnormal diastolic filling and in about one third of cases, intermittent ventricular outflow obstruction

A

Hypertrophic

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7
Q

(cardiomyopathy) Microscopically, the heart demonstrates hypertrophy of myocardial fibers (which also have prominent dark nuclei) along with interstitial
fibrosis.

A

hypertrophic cardiomyopathy (HCM)

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8
Q

The heart becomes thick-walled, heavy, and hyper-contracting

A

Hypertrophic cardiomyopathy

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9
Q

The essential feature of …. is massive myocardial hypertrophy without ventricular dilation.

A

HCM

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10
Q

A classic appearance of…is the disproportionate thickening of the ventricular septum as compared with the free wall of the ventricle.

A

HCM (hypertrophic cardiomyopathy)

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11
Q

Marked left ventricular hypertrophy, with bulging of a very large interventricular septum into the left ventricular chamber.

A

HCM

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12
Q

In …. cardiomyopathy, the myocardium is usually infiltrated with abnormal tissue that results in impaired ventricular wall motion with abnormal ventricular wall contraction and relaxation.

A

restrictive

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13
Q

The most common causes of restrictive cardiomyopathy are …. (2)

A

amyloidosis and hemochromatosis.

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14
Q

amorphous deposits of pale pink material between myocardial fibers.

A

amyloidosis

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15
Q

where does the process of endocarditis begin?

A

on the lines of closure, where pressure is the greatest (atrial surfaces of the atrioventricular valves and the ventricular surfaces of the semilunar valves)

16
Q

collections of infected thrombotic debris deposited on and around the affected valve.

A

vegetations

17
Q

Which valves are most commonly affected by endocarditis?

A

Aortic and mitral

18
Q

friable … of fibrin and platelets (pink) mixed with inflammatory cells and bacterial colonies
(blue).

A

vegetations

19
Q

rapidly developing, destructive infection – often of a previously normal heart valve.

A

Acute

20
Q

usually involves an already damaged valve and most often occurs due to infection with a less virulent organism.

A

sub acute endocarditis

21
Q

Splinter hemorrhages and Roth’s spots

A

sub acute endocarditis

22
Q

Main cause of sub-acute endocarditis

A

strep viridins (alpha hemolytic strep)

23
Q

Most common cause of endocarditis of a native valve

A

strep viridins

24
Q

Libman-Sacks endocarditis

A

Endocarditis associated with collagen vascular dz (SLE)

25
Q

endocarditis that results from an underlying hypercoagulable state also known as Trousseau’s syndrome, a paraneoplastic syndrome associated with malignancies.

A

Maranic

26
Q

A fibrinous or fibrino-hemorrhagic …. often develops on the second third or fourth day following a transmural myocardial infarction as a result of the inflammatory epicardial response to the underlying myocardial injury.

A

pericarditis

27
Q

the name commonly given to the form of pericarditis that occurs weeks to months after injury to the heart or the pericardium.

A

Dressler’s Syndrome

28
Q

It is presumed to be an auto-immune response to myocardial antigens.

A

Dressler’s Syndrome

29
Q

… is the failure of a valve to open completely, thereby impeding forward flow.

A

stenosis

30
Q

… results from failure of a valve to close completely, thereby allowing reversed flow.

A

insufficiency

31
Q

Which 2 conditions account for over 2/3 of all valvular diseases?

A

Aortic stenosis, mitral valve stenosis

32
Q

Which is the most common of all the valvular diseases?

A

aortic stenosis

33
Q

Degenerative calcific deposits can develop in the fibrous ring (annulus) of the mitral valve, as hard, irregular and occasionally ulcerated nodules that lie behind the leaflets.

A

Mitral annular calcification

34
Q

In this valvular abnormality, one or more leaflets are “floppy”, or balloon back into the atrium during systole.

A

Mitral valve prolapse

35
Q

Which infection can cause rheumatic fever?

A

group A beta-hemolytic Streptococcus (Streptococcus pyogenes)

36
Q

post-streptococcal acute rheumatic fever is likely due to an autoimmune response caused by

A

anti-streptococcal M protein antibodies which cross-react with cardiac myosin.

37
Q

What is a valvular complication of rheumatic fever?

A

Mitral stenosis