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Cardiomyopathy
PA CLin Med
64
Health Care
Graduate
10/28/2009

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Term
define cadiomyopathy:
Definition
diseases of the myocardium assoc w cardiac dysfunction:
Term
cardiomyopathy, 2 groups:
Definition
primary( genetic, aquired, mixed)
2. secondary (other organ sys involved
Term
4 primary types of cardiomyopathy:
Definition
1. dilated
2.hypertrophic
3. restrictive
4. inclassified
Term
5 secondary types of cardiomyopathy:
Definition
1. infective
2. metabolic
3. systemic dz
4. genetic
5. toxic
Term
cardiomyopathy: decrease in contractility, LVH, results in HF
Definition
systolic dysfunction
Term
Frank-Starling law:
Definition
blood in = blood out; increase of blood return = increase ejection leading to hypertrophy
Term
LV relaxation in abnormal, increased filling pressure: 2 conditions
Definition
1. hypertrophic cardiomyopathy
2. restrictive cardiomyopathy
Term
functional classification of cardiomyopathies: 3
Definition
1. dilated (congestive)
2. Hypertrophic
3. restrictive (infiltrative)
Term
ventricular enlargement and systemic dysfunction:
Definition
Dilated (congestive) cardiomyopathy
Term
hypertrophy in the absence of HTN or aortic stenosis:
Definition
Hypertrophic cardiomyopathy
Term
abnormal filling and diastolic dysfunction:
Definition
Restrictive (infiltrative) cardiomyopathy
Term
progressive syndrome of ventricular hypertrophy, dilation, & systolic contractile dysfunction:
Definition
dilated cardiomyopathy (DCM)
Term
3 CM associated w Dilated (congestive) CM:
Definition
1. alcoholic CM
2. beer drinkers CM - cobalt
3. Ischemic CM
Term
which chambers are dilated in dilated cardiomyopathy?
Definition
all 4
Term
which is the most common form of CM?
Definition
Dilated
Term
What is the most common cause for DCM and therefore the most common cause of CM?
Definition
idiopathic
Term
4 factors that may contribute to dilated cardiomyopathy:
Definition
1. alcohol or other toxicity
2. pregnancy
3. genetic influence
4. post-viral myocarditis (coxsackie)
Term
Epidemiology: who is likely to present with dilated CM?
Definition
20-60yo M
Term
major clinical presentation for dilated CM:
Definition
gradual onset CHF
Term
S/Sx assoc with gradual onset CHF & therefore Dilated CM: Pneumonic:
Definition
HEART JMPS:
H - hypotension
E - edema
A - Ascites
R - rapid HR
T - Tachypnea/dyspnea/orthopnea
J - JVD
M - Mitral regurge murmur
P - PMI shifted
S - S3 gallop
Term
EKG for dilated CM:3
Definition
1. low QRS
2. nonspecific ST changes
3. ventricular ectopy
Term
TEST Q: What is the best Dx test for dilated CM and what does it show?
Definition
ECHO: LV dilation/dysfunction, ejection fraction <40%
Term
medical therapy for dilated CM:3
Definition
1. ACE inhibitors ("prils")
2. Diuretics (furosimide, HCTZ)
3. vasodilators (NO)
Term
describe hypertrophic cardiomyopathy:
Definition
ventricular hypertrophy particularly the LV w impared ventricular filling due to diastolic dysfunction
Term
3 etiologies of HCM:
Definition
1. TEST Q: GENETICS
2. xs catecholamines
3. ischemic heart dz
Term
Epidemiology for hypertrophic cardiomyopathy: prevalence, age, sex
Definition
0.05-0.2% of populatin, any age most in 20's, more common in men
Term
which CM is the leading cause of sudden cardiac deaths?
Definition
Hypertrophic CM
Term
5 risk factors of sudden death from HCM:
Definition
1. recurrent syncope - Dizzy
2. young age - Young
3. Brady arrhythmias - Impeded rhythm
4. sustained VT - Nimble ventricle
5. FHx - Geneological Hx
spells DYING
Term
which HCM is considered low risk?
Definition
>30 & all of following are absent:
1. VT
2. FHx
3. syncope
4. exerscise induced hypotension
5. enlarged atrium
6. Abn myocardial infusion
Term
90% of HCM patients present w:
Definition
dyspnea
Term
describe the murmur assoc w HCM:
Definition
harsh systolic ejection murmur
Term
what are the 5 most common Sx for HCM:
Definition
1. Dyspnea
2. Syncope
3. CP
4. palpitations
5. dizzyness
Term
which CM may be assoc w either Afib or Vtach?
Definition
HCM
Term
what is a major risk in Afib?
Definition
embolization
Term
4 differential Dx for HCM:
Definition
1. aortic stenosis
2. HTN
3. Restrictive CM
4. Glycogen storage Dz
Term
The murmur assoc w HCM is exacerbated by: is made softer by:
Definition
fitness training & made louder by minimizing stroke volume (holding breath): is made softer by squating and maximizing the stroke volume.
Term
Echo on HCM: 4
Definition
1. asymmetric septal hypertrophy
2. LVH
3. diastolic dysfxn
4. anterior mitral valve leaflet malfxn in systole
Term
drug of choice for HCM:
Definition
Beta blocker
Term
HCM Tx: 4
Definition
1. avoid weight gain
2. avoid strenuous exerscise
3. Beta blocker
4. surgery
Term
3 surgeries for HCM:
Definition
1. myoectomy of the septum
2. implanted defibrilator
3. mitral valve replacement
Term
which CM primarily affects the LV and septum?
Definition
HCM
Term
which protein is affect in genetic HCM?
Definition
myosin
Term
Key word: sudden death
Definition
HCM
Term
what is the test of choice in identifying HCM?
Definition
Echo
Term
2 main medications for HCM:
Definition
1. Beta blockers
2. Ca++ channel blockers
Term
Which CM is the rarest?
Definition
Restrictive
Term
which CM has NO genetic component?
Definition
restrictive
Term
what is the most common cause of restrictive CM?
Definition
amyloidosis
Term
in the US a common etiology for RCM is:
Definition
idiopathic
Term
which is affected in RCM, systole or diastole?
Definition
Diastole; systole is unaffected
Term
restrictive diastolic filling results in:
Definition
low stroke volume & CHF
Term
3 of the most common Sx for RCM:
Definition
1. exerscise intolerance
2. Dyspnea
3. fatigue
Term
describe the murmurs for RCM:
Definition
mitral/tricuspid regurge, maybe S3
Term
EKG shows: low QRS voltage and non-specific ST changes
Definition
DCM & RCM
Term
Echo for RCM shows:4
Definition
1. normal LV
2. marked dilation of atrium
3. textured ventricular wall in amyloidosis
4. restricted diastole filling
Term
littel useful therapy is available for which CM?
Definition
restrictive
Term
which drug is used to maintain sinus rhythm?
Definition
amiodarone
Term
why would anticoagulants be used with a Hx of Afib?
Definition
risk of embolization
Term
which CM would be a candidate for transplant?
Definition
restrictive
Term
can left sided CHF result from RCM?
Definition
YES
Term
Key words: Amyloidosis, sarcoidosis, autoimmune, hemochromatosis =
Definition
restrictive CM
Term
which 2 CM are assoc with diastole dysfxn?
Definition
HCM/RCM
Term
which CM may be assoc w ischemia?
Definition
dilated
Term
LVEF <40%:
Definition
Dilation
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