Heart & Blood Vessels Flashcards
What happens when the heart does not pump as effectively as it should?
Oedema – pulmonary and peripheral
Tiredness
What are the signs of cardiac failure?
Shortness of breath (SOB), fatigue, pulmonary oedema, systemic venous congestion (engorged veins)
Define stenosis
Failure of valves to open completely, impeding forward flow
Define Incompetence/Regurgitation
Failure of valves to close, allowing reverse flow
Define Vegetations
abnormal tissue growth on valve (fibrin, platelets & bacteria)
What can vegetations result from?
Infective endocarditis and rheumatic fever
Give 4 examples of underlying causes of valvular heart disease
Infection
Carcinoid syndrome
Heart failure
Calcific aortic valve disease
What is infective endocarditis?
Colonization of the heart valves or mural endocardium usually by bacteria
What is the clinical presentation of infective endocarditis?
Sepsis
Heart Failure
New murmur
What happens in cardiac dilation?
Chambers dilate, heart becomes large and flabby
Define aneurysm
Localised, permanent, abnormal dilatation of a blood vessel
What causes aneurysms?
Age, Atherosclerosis, Ischaemia, Hypertension, Inflammation, Diabetes, Autoimmune diseases
Name 4 causes of secondary hypertension
Renal problems
Endocrine problems
Vascular problems
Neurogenic problems