8.6-8.7 Cardiomyopathy and Cardiac Tumors Flashcards
Cardiomyopathy
Myocardial diseases that result in cardiac dysfunction
Dilated Cardiomyopathy
Most common form - causes dilation of all 4 chambers of the heart
What kind of dysfunction results from dilated cardiomyopathy?
Systolic Dysfunction
What type of HF is associated with dilated cardiomyopathy?
Biventricular HF
What are the complications of dilated cardiomyopathy?
Mitral and Tricuspid Regurgitation
What is the most common cause of dilated cardiomyopathy?
Idiopathic
What are some of the other causes of dilated cardiomyopathy?
- Alcohol
- Pregnancy
- Drugs
- Genetic Mutation
- Myocarditis
Hypertrophic Cardiomyopathy
Massive hypertrophy of the LV
What is the most common cause of hypertrophic cardiomyopathy?
Genetic mutations in the sarcomere - most commonly autosomal dominant
What is a common cause of death in young athletes?
Hypertrophic Cardiomyopathy
What are the complications of Hypertrophic Cardiomyopathy?
Decreased CO
Syncope with exercise
What are the main causes of restrictive cardiomyopathy?
- Amyloidosis
- Sarcoidosis
- Hemochromatosis (iron in the wall of the heart)
What is Restrictive Cardiomyopathy?
Decreased compliance of the ventricular endomyocardium which restricts filling during diastole
Myxoma
Mesenchymal tumor of benign origin
What are the complications of myxoma?
Syncope due to obstruction of the mitral valve.
