Valvular heart disease Flashcards
Define valvular heart disease
characterized by damage to or defect in one of the four heart valves, the mitral, aortic, tricupsid, or pulmonary, leads to increased workload on the heart
Heart murmur
turbulent blood flow between heart chambers, denoting valve dysfunction. It is an abormal noise
Heart murmurs may be due to
valvular incompetence, valvular regurgitations/insufficiency, valvular stenosis, valvular prolapse
Valvular incompetence
valve is not functioning properly, non specific term
Valvular regurgitations/insufficiency
a non specific term meaning the valve is unable to close properly, resulting in back flow. Atria are not empty as a new cycle begins
Valvular stenosis
inability of the valve to open properly, resulting in a reduced volume of blood exiting the chamber and considerable pressure in the exit chamber- the idea of narrowing
Valvular prolapse
valves bulge upwards, which can cause a back flow of blood, only occurs to the mitral valve
Valvular heart disease common causes are
Hypertension/ Chronic congestive heart failure, complications of myocardial infarction, rheumatic fever, endocarditis, congenital abnormality, radiation therapy for cancer
Rhuematic fever
an autoimmune reaction secondary to infection by streptococcus bacteria
antibodies which have developed to fight the infection appear to sense a chemical similarily between the bacteria and heart tissue
Signs and symptoms of heart murmur
initially fatigue, later on breathlessness and dyspnea
Mention of heart murmur or any valvular disease on the case history should lead to the RMT establishing ______
CCHF, chronic congestive heart failure
RMT considerations for valvular disease
Watch for signs of dyspenea (ie. difficult or painful breathing), and increased SYNS activity (hearts with valve problems do not typically adapt easily to increased cardiac output)
-watch for increases in BP post treatment
Mitral valve prolapse some AKAs
floopy valve, barlows, click-murmur syndromes
Two valve flaps of the mitral valve do not close smoothly or evenly, but insteas bulge (prolapse) upward into the left atrium. What is the clinical name for this?
Mitral valve prolapse
The most common cause of mitral valve prolapse (MVP) is
abnormally stretchy or floppy valve leaflets (called myxomatous valve disease) and their supporting chordae tendonae causing parts of the valve flop or bulge back into the atrium
MVP doesnt always cause backflow/regurgitation