Cardiomyopathy Flashcards
What is hypertrophic cardiomyopathy?
Inherited, strong contraction, diastolic dysfunction, late stage functional outflow constriction in aorta from compression
Hypertrophic cardiomyopathy is a common cause of sudden death in ?
Athletes
esp. football players, hint hint
What is restrictive cardiomyopathy?
Stiff ventricle walls resist filling Reduce EDV (ESV is normal or increased)
What causes restrictive cardiomyopathy?
Idiopathic (?genetic)
End myocardial fibrosis
Infiltrative disorder
Following radiation therapy
What is found on histology of dilated cardiomyopathy?
Myocardial cell hypertrophy (increase length) Large bizarrely shaped nuclei Myocyte atrophy Myofilmanet loss Increased interstitial fibrosis
What are non-histological features of dilated cardiomyopathy?
Increase systolic and diastolic volume
Decreased ejection fraction
Incidence of dilated cardiomyopathy increase with?
Age
What is arrythmogenic cardiomyopathy?
Right ventricular cardiomyopathy
Heart muscle replaced y fibrous and fatty tissue
What are symptoms/signs of cardiomyopathy?
Dyspnoea
Fatigue
Oedema
Orthopnoea
The symptoms of cardiomyopathy are related to?
Heart failure
What are arrythmia-related symptoms of cardiomyopathy?
Palpitations
Dizziness
Syncope
Sudden death
What symptoms are caused by outflow tract obstruction?
Syncope
Angina
What are signs of hypertrophic cardiomyopathy?
Jerky pulse Wave in JVP Double apex beat S4 Mid diastolic murmur exacerbated by valsalva manoeuvre
What are signs of dilated cardiomyopathy?
Increased pulse Decreased BP Increased JVP Displaced diffuse apex S3
Arrythmogenic cardiomyopathy causes?
Ventricular arrhythmias of RV origin which may lead to sudden death
