Miscellaneous Disease Flashcards

1
Q

What are cardiomyopathies

A

A heterogenous group of diseases associated with electrical and/or mechanical dysfunction of the heart

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2
Q

What is the functional classification

A

Dilated cardiomyopathy, hypertrophic cardiomyompathy, Restrictive Cardiomyopathy

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3
Q

Dilated cardiomyopathy is characterized by?

A

Impaired contractility and systolic function

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4
Q

Hypertrophic and restrictive characterized by?

A

Impaired compliance and diastolic function

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5
Q

Decompensation can cause what

A

Hypertrophic or restrictive cardiomyopathy to take on features of dilated cardiomyopathy

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6
Q

Hypertrophic cardiomyopathy

A

group of genetic diseases characterized by hypertrophy as a compensatory mechanism for defects in myocyte contractile aparatus

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7
Q

Restrictive cardiomyopathy

A

The prototype is amyloidosis. Fibrosis (due to radiation, sarcoidosis, etc) or hemochromatosis can cause it as well.

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8
Q

Hypertrophic cardiomyopathy is called hypertrophic obstructive cardiomyopathy when:

A

it features asymmetrical septal hypertrophy and subaortic stenosis

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9
Q

Most common cause of death in young athletes

A

hypertrophic cardiomyopathy

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10
Q

Male or female predominance in hypertrophic cardiomyopathy

A

female

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11
Q

Hypertrophic cardiomyopathy is 50% auto dominant and 50% from new mutations

A

truth

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12
Q

The decreased comliance in hyper cardiomyo causes

A

increased left ventricular pressure, increased left atrial pressure, increased pulmonary pressure

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13
Q

Microscopy shows what in hypertrophic cardiomyopathy

A

myocyte disarray, myocyte hypertrophy, interstitial and replacement fibrosis

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14
Q

Complications of hypertrophic cardiomyopathy are

A

heart failure, infective endocarditis, atrial fib, left atrial mural thrombus, syncope, sudden death

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15
Q

Symptoms of HC

A

dyspnea, syncope, angina,

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16
Q

Signs of HC

A

S4 heart sound, crescendo decrescendo murmur at left sternal border

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17
Q

hypertrophic cardiomyopathy is the most common cause of death for athletes under 35

A

Yeah, Hypertrophic atherosclerosis is the most common cause for athletes over 35

18
Q

Cardiac Amyloidosis is what kind of cardiomyopathy

A

Restrictive

19
Q

Cardiac amyloidosis due to what>

A

Deposition of abnormal protein in the interstitium of the heart

20
Q

What the hell is amyloid

A

Amyloids are fibrillar proteins produced by plasma cells or hepatocytes… Three of the most common are Ig Light chains, Transthyretin, and amyloid A

21
Q

Senile Amyloidosis

A

Transthyretin deposits, limited to the heart, present in 25% over 80

22
Q

Transthyretin amyloidosis is common in who>

A

African Americans, it is familial and autosomal dominant

23
Q

Gross pathology of transthyretin amyloidosis

A

Enlarged, waxy tan heart

24
Q

Microscopic pathology of transthyretin amyloidosis

A

Hyaline eosinophilic material. Orange on Congo Red Stain

25
Complications of cardiac amyloidosis
Heart Failure, Heart Block, arrhythmias
26
Signs of CA
JVD, Peripheral edema, ascites, Enlarged Liver, Pulmonary Rales
27
Diagnosis of CA
biopsy
28
Whats problematic about the treatment of amyloidosis
Transplantation is the only treatment, but the amyloidosis will come back unless the myeloma producing the abnormal protein is cured or the liver producing the abnormal protein is replaced.
29
What the hell is sarcoidosis
Multi-organ inflammatory disease that may be autoimmune
30
Sarcoidosis common in who?
African Americans. Usually presents in young adults with fever, malaise, fatigue, weight loss, dyspnea.
31
Sarcoidosis favors what part of the heart
Base of the heart, conduction system
32
Most common presentation of sarcoidosis
arrhythmias causing syncope or sudden death
33
What the hell is Idiopathic dilated cardiomyopathy
A wastebasket category of nonspecific end stage heart disease with no cause evident
34
Gross pathology of dilated cardiomyopathy
flabby heart with four chamber dilatation and commonly with mural thrombi.
35
Dilated cardiomyopathy is a diagnosis of exclusion
Truth. SIgns and symptoms are just like heart failure
36
Cardiac Myxoma
Benign mesenchymal neoplasm of the endocardium
37
Most common primary tumor of the heart in adults (still rare) is?
Cardiac myxoma
38
Most cardiac myxomas are located where?
90% in atria
39
Symptoms of Cardiac myxoma
dyspnea, cough, transient neurological symptoms, fatigue and fever. Loud first heart sound
40
Treatment of sarcoidosis
steroids