Cardiomyopathy, myocarditis, pericarditis etc Flashcards
what is cardiomyopathy
ANY disease of the cardiac muscles
how many types of cardiomyopathy are there, what are they
- restrictive (stiff)
- dilated (weak/flabby)
- hypertrophic (muscle bound)
how can dilated cardiomyopathy be described
“big heart”
what are the symptoms of dilated cardiomyopathy
general cardiac ones: SOB, decreased exercise tolerance, decreased cardiac output
what are the causes of dilated cardiomyopathy
genetic (50%)
alcoholism
infection (rare)
pregnancy (rare)
how can hypertrophic cardiomyopathy be described
“big heart in athletes”
what sort of person commonly gets hypertrophic cardiomyopathy
athletes
describe the physiology of hypertrophic cardiomyopathy
causes systolic dysfunction meaning the heart can’t relax leading to a outflow obstruction resulting in sudden death
what is the cause of hypertrophic cardiomyopathy
genetic
how does hypertrophic cardiomyopathy affect the heart anatomy
bulging inter-ventricular septum
outflow tract obstruction
LV luminal reduction
how can restrictive cardiomyopathy be described
“stiff heart”
how would a heart with hypertrophic cardiomyopathy look
normal
describe the physiology of hypertrophic cardiomyopathy
bilateral dilation results in lack of compliance
causes of hypertrophic cardiomyopathy
(deposition of something) sarcoidosis tumour scarring/fibrosis from radiation amyloid
what is an amyloid
abnormal deposition of abnormal protein