Cardiomyopathy, myocarditis, pericarditis etc Flashcards

1
Q

what is cardiomyopathy

A

ANY disease of the cardiac muscles

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2
Q

how many types of cardiomyopathy are there, what are they

A
  1. restrictive (stiff)
  2. dilated (weak/flabby)
  3. hypertrophic (muscle bound)
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3
Q

how can dilated cardiomyopathy be described

A

“big heart”

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4
Q

what are the symptoms of dilated cardiomyopathy

A

general cardiac ones: SOB, decreased exercise tolerance, decreased cardiac output

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5
Q

what are the causes of dilated cardiomyopathy

A

genetic (50%)
alcoholism
infection (rare)
pregnancy (rare)

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6
Q

how can hypertrophic cardiomyopathy be described

A

“big heart in athletes”

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7
Q

what sort of person commonly gets hypertrophic cardiomyopathy

A

athletes

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8
Q

describe the physiology of hypertrophic cardiomyopathy

A

causes systolic dysfunction meaning the heart can’t relax leading to a outflow obstruction resulting in sudden death

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9
Q

what is the cause of hypertrophic cardiomyopathy

A

genetic

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10
Q

how does hypertrophic cardiomyopathy affect the heart anatomy

A

bulging inter-ventricular septum
outflow tract obstruction
LV luminal reduction

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11
Q

how can restrictive cardiomyopathy be described

A

“stiff heart”

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12
Q

how would a heart with hypertrophic cardiomyopathy look

A

normal

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13
Q

describe the physiology of hypertrophic cardiomyopathy

A

bilateral dilation results in lack of compliance

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14
Q

causes of hypertrophic cardiomyopathy

A
(deposition of something)
sarcoidosis
tumour
scarring/fibrosis from radiation
amyloid
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15
Q

what is an amyloid

A

abnormal deposition of abnormal protein

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16
Q

what is arrhythogenic right ventricular dysplasia (ARVC)

A

Rv is largely replaced by fat

17
Q

how could a heart with ARVC be described

A

big and floppy

18
Q

what is the cause of ARVC

A

genetic, autosomal dominant with low penetrance

19
Q

symptoms of ARVC

A

range of non-specific features
syncope and funny turns
arrhythmia
sudden death

20
Q

what is myocarditis

A

inflammation of the heart

21
Q

how many different types of myocarditis are there, what are they

A
  1. infectious

2. noninfectious

22
Q

how would you describe a heart with infectious myocarditis

A

thicken, BEEFY myocardium

23
Q

causes of infectious myocarditis

A

viral (most common) = ECHO virus
chaga’s disease
lyme’s disease
HIV

24
Q

causes of non-infectious myocarditis

A

(hypersensitivity reactions)
rheumatic fever following strep throat
SLE

25
Q

what is eosinophilic myocarditis

A

hypersensitivity to drugs

26
Q

what occurs in rheumatic fever

A

thickening and fusion of valve leaflets

27
Q

what are aschoff bodies associated with

A

rheumatic fever

28
Q

what murmur does rheumatic fever cause

A

mitral stenosis

29
Q

describe the inflammation in rheumatic fever

A

patchy, on the myocardium

30
Q

what is pericarditis

A

inflammation of pericardial layers

31
Q

causes of pericarditis

A
infection
rheumatic fever
renal failure (uraemia pericarditis)
dressler's syndrome
SLE
32
Q

complications of pericarditis

A

percardial effusion
tamponade
cardiac failure
restrictive pericarditis (due to tuberculous pericarditis)

33
Q

what is dressler’s syndrome, when does it occur

A

occurs in the weeks post MI

heart muscle relaxes and releases previously encountered material which results in an immune response