cardiomyopathy Flashcards

1
Q

most common type of cardiomyopathy

A

dilated

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2
Q

what organism can cause myocarditis –> dilated cardiomyopathy

A

coxsackie, HIV, diptheria, chagas

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3
Q

what substances can cause dilated cardiomyopathy

A

alcohol and cocaine (and doxorubicin)

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4
Q

what can cause dilated cardiomyopathy in women

A

pregnancy

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5
Q

what genetic conditions is assoc esp with dilated cardiomyopathy

A

duchenne muscular dystrophy

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6
Q

what nutirional deficiency can lead to restrictive cardiomyopathy

A

thiamine –> wet beri beri

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7
Q

what dysfunction is seen in dilated cardiomyopathy

A

dilated chambers –> systolic dysfunction

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8
Q

presentation + murmur dilated cardiomyopathy

A

HF // systolic murmur // S3

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9
Q

what imaging can be done for dilated cardiomyopathy

A

Xray –> dilated

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9
Q

what cardiomyopathy causes sudden cardiac death in young people

A

hypertrophic obstructive (HOCM)

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10
Q

inhertience of HOCM

A

dominant

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11
Q

what dysfunction is seen in HOCM

A

diastolic (decreased compliance –> decreased CO)

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12
Q

what is seen on biopsy of HOCM

A

myofibrillar hypertyophy + disorganised myoctes + fibrosis

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13
Q

symptoms HOCM

A

on exercise: SOB + syncope // double apex beat // jerky pulse // systolic murmur (decrease on squatting, increase valsalva)

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14
Q

what causes sudden death in HOCM

A

ventricular arrhythia

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15
Q

what is assoc with HOCM

A

WPW + friedreichs ataxia

16
Q

what is seen on echo HOCM

A

MR SAM ASH: mitral regurg // stsolic anterior motion // asymmetric hypertrophy

17
Q

ECG HOCM

A

large Q waves // T wave inversion

18
Q

HOCM mx

A

ABCD: amiodarone // BB (or verapamil) // cardio defib // dual chamber pacemaker

19
Q

drugs to avoid in HOCM

A

nitrates // ACEi // inotropes

20
Q

what type of inheritance is arrhythmogenic right ventricular cardiomyopathy

A

dominant - varying penetrance

21
Q

what is the pathology of arrhythmogenic right ventricular cardiomyopathy

A

right ventricle myocardium replaced by fat

22
Q

presentation arrhythmogenic right ventricular cardiomyopathy

A

palpitations, syncope, sudden death

23
Q

ECG arrhythmogenic right ventricular cardiomyopathy

A

T wave inversion V1-3 // terminal notch in QRS (epsilon wave)

24
Q

imaging arrhythmogenic right ventricular cardiomyopathy

A

echo or MR

25
Q

mx arrhythmogenic right ventricular cardiomyopathy (3)

A

sotalol // cathater ablation // implantable cardio defib

26
Q

what is naxos disease

A

recessive varient arrhythmogenic right ventricular cardiomyopathy // woolly hair

27
Q

what is takotsubo cardiomyopathy

A

apical ballooning at the bottom of the heart which does not contract whilst top of heart does contract

28
Q

symptoms takotsubo cardiomyopathy

A

chest pain, HF

29
Q

ECG takotsubo cardiomyopathy

A

ST elevation

30
Q

echo takotsubo cardiomyopathy

A

normal ;)

31
Q

where is the mutation in HOCM

A

B-myosin heavy cheam

32
Q

what is restrictive cardiomyopathy

A

lack of compliance