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MS CAD
Independent Study
Term | Definition |
---|---|
pericarditis | inflammation of the pericardium (sac around heart mm) can be acute or chronic |
classic symptom of pericarditis | sharp & often sudden pleuritic pn that increases w/ deep inspiration |
endocarditis | also known as infective endocarditis. is inflammation of the membrane lining the valves & chambers of the heart. can be acute, subacute or chronic |
most common valve problems | mitral & aortic |
location of mitral valve | between L ventricle & L atrium |
location of aortic valve | between L ventricle and aorta |
mitral stenosis | blood flow is obstructed from L atrium to L ventrical-valve opening too narrow |
insufficiency | blood from L ventricle flows back into L atrium-backflow |
prolapse | "to fall out of place"- valves don't close properly |
2 types of valve sx | balloon valvuloplasty or surgical replacement of valve |
cardiomyopathy | group of conditions that affect the heart mm. the only cure is a heart transplant |
congenital heart disease | anatomic defect that develops in utero |
2 categories of congenital heart disease | cyanotic & acyanotic |
cyanotic conditions | blood flow obstructed or oxygenated blood being mixed with venous blood |
arrhythmia | disturbance in heart rate or rhythm caused by SA node dysfunction or conduction disturbance |
bradycardia | <60 BPM |
tachycardia | >100 BPM |
atrial fibrillation | involuntary, irregular mm contraction of atrium, most common arrhythmia |
ventricular fibrillation | involuntary mm contraction of ventricles (frequent cause of cardiac arrest) |
heart block | conduction block from SA node to rest of heart |
Dx of arrhythmia | EKG, Holter moniter: EKG x 24 hrs + pt keeps diary of activity & symptoms |
Rx of arrhythmia | antiarrythmic meds, cardioversion, artificial pacemaker (post pacemaker sx: no lifting > 10 lbs x 6 wks. Estim & US in area are contraindicated) |