heart failure pathophys and Myocarditis Flashcards
clinical symptoms of HF
increased JVD, pulm edema/isp cracked, cool extreme, slow organ perfusion, lateral LV impulse, cres/decrease, chest pain/stemi
shock def
low tissue perfusion» ischemia/infarct. leads to necrosis/organ disfunction
types of shock
hypovolemic, cariogenic, septic, obstructive
hypovolemic shock
low preload (bleeding)
cariogenic shock
loss of contractility (MI
septic
vasodilation/dehydration, decrease afterload
obstructive shock
blocked flow
types of HD
HFrEF, HFpEF, restrictive
HFrEF
systolic, lost myocardium leads to lost contractility
HFrEF
increased stiffness, increased filling p (hypertrophic cardio or HTN/DM
restrictive HF
infiltration witth foreign… R sided HF ( increased compliant)
neurohumoral activation
adrenogenic/renin lead to vasoconstriction, sodium retention, and fibrosis
good neurohumoral activation (just not enough)
natruetic peptide > vasodilation and sodium excretion
general myocardiitis
inflam, necrosis, deign of mycoses, not ischemic, many asympt
types of myocarditis
acute, acute/chronic, fulminant
acute myo
self lim, often spefici viral org, excellent rofnosis
acute/chronic myo
recurrent HF, progress» cardiomyopothy
etiologies
infection, immune, unknown
infection myocarditis
viral most common, then bacterial and chagas
chagas
protozoa, kissing bug, acute: chagoma, fever, swollen lymph, multiorgan, pseudocyst. 32%> chronic, hypertrophy and infamy…
histo of infectius
patchy, influx, lymph, MO, rare giant,. focal myocte nectrosis
immune
post viral, lupus/rheum/drug
unknown causes
giant cell, sarcoid
pericardial issues (4 )
effusion, pericarditis, constrictive, hemoperricardium
