quiz #2 shizz Flashcards
Beta hemolytic streptococcal group A causes
GMN rheumatic fever
three valves that rheumatic fever effect
- Mitral (usually)2. Aortic (2nd most common3. tricuspid -very rare
pulmonary is not involved with
rheumatic fever
the ____ is affected in 100% of cases of RF
myocardium
_____ found in myocardium indicate fibrinoid necrosis w/ in the depth of the heart muscle
aschoff’s nodes
pathoneumonic sign of rheumatic myocarditis
aschoff’s nodes
very rare 15-20% of RF cases
pericarditis
pericarditis
fibrous inflammation outside the pericardium that forms fibrin strands from fibrinogen that irritates the heart when it moves
Endocarditis __% of the time involves the valves of the heart
80%
made of a dense fibrous layer with fluid for movement
pericardium
made with dense fibrous layer that is continuous with the valves of the heart
endocardium
what causes regurgitation/ insufficient valves?
with damage/irritation the fibrous tissue that makes up the valves is replaced with connective tissue, this tightens and strings the cuffs. This causes incomplete closer of the valves resulting in back flow.
insufficient valves/regurgitation can cause
hypertrophy of the (left) atrium (mitral)
hypertrophy of the left atrium causes adhesions to the _____ valve
mitral
most common pathology associated with rheumatic endocarditis
mitral valve stenosis
Most common place for thrombi formation
LA:due to being stagnant with a bad mitral valve
a large thrombus can obstruct the ____
valve iself
dilation of the left ventricle can lead to
aortic stenosis
when pressure due to dilation in the LA = that of the pulmonary artery leads to…
stats of blood in the lungs, end up drowning due to Pulmonary edema
what is the appropriate treatment for when the LV dilates and causes Aortic valve issues?
valve replacement
ball valve thrombus forms with ____ stenosis
mitral
______ pieces of thrombus that break off and go into circulation and can cause ___, ____, _____
thrombocmboli, MI, Stroke, infarction
lines of Zahn form in the ___ of the heart
chambers
causes poor 02 in blood, low diastolic BP
Aortic insufficiency
most common cause of aortic insufficiency
syphilis
infection disease that involves bacterial infection of valves of the heart
bacterial endocarditis
massive staph infection of the body with bad prognosis
acute bacterial endocarditis
most commonly caused by staph aureus
acute bacterial endocarditis
not as bad as acute endocarditis usually caused by strep viridian’s (mitts)
subacute bacterial endocarditis
aortic valve most common for this condition mitral is also involved
bacterial endocarditis
main sources bacterial endocarditis are
bad tooth-spread of infection to aveoligenitalia: prostate in men oraires in female- sources of chronic infectionStreptoderma-general term for infection of the skin (infectious dermatitis) blisters or acne in the face is source of infection happens when squeeze zits can go into brain and cause meningitis Lungs- especially for people with pneumoniaGall Bladder, if infected source of chronic infection
bacterial endocarditis cause cause _____ of enzymes that lead to destruction of valves and chordae tendinae
release
