Cardiomyopathies Questions and Answers

Cardiomyopathies Questions and Answers




1. what is cardiomyopahty?: disease of the heart muscle
2. what are the 3 main types of cardiomyopathies?: dilated, restrictive, hyper- trophic
3. what is diastolic function?: how much blood fills the ventricle in diastole
4. what is systolic function?: how much blood is ejected during systole
5. what is dilated cardiomyopathy?: dilation of one or both ventricles with impaired contraction (EF <40%)
systolic dysfunction from thin, weak ventricle

6. what can cause dilated cardiomyopathy?: genetic causes
alcohol, cocaine, obesity, thyroid disease, diabetes, chemotherapy, viral infection (myocarditis)

7. how does dilated cardiomyopathy present?: evidence of left or right ventricular dysfunction, or both
sx develop gradually over time
may develop arrhythmias, risk for sudden cardiac death

8. what are symptoms of left ventricular dysfunction?: DOE exercise intolerance
orthopnea
paroxysmal nocturnal dyspnea pulmonary
edema

9. what are sx of right ventricular dysfunction?: hepatomegaly ascites
splenomegaly
edema
JVD

10.how is dilated cardiomyopathy diagnosed?: EKG CXR
Echo

11.how does dilated cardiomyopathy appear on EKG?: tachycardia atrial or ventricular
arrhythmias
LBBB

12.how does dilated cardiomyopathy appear on CXR?: cardiomegaly pulmonary vascular congestion
pleural effusions

13.how does dilated cardiomyopathy appear on echo?: dilated ventricle decreased ventricular function
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, Cardiomyopathies Questions and Answers

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