what is the major offender in infections endocarditis occuring in intravenous drug abusers?
S. aureus
in endocarditis 50%-60% of cases occuring on damaged or deformed valves are caused by?
S. viridans
what is the most consistent sign of infective endocarditis?
fever
in endocarditis fever may be absent in?
subacute disease particularly in older adult
in endocarditis fever may be absent in subacute and the only manifestation is?
1/nonspecific fatigue
2/weight loss
3/flulike syndrome
splenomegaly is commn in…….. endocarditis?
subacute
1/petechia
2/nail bed (splinter)
hemorrhages,
3/ retinal hemorrhages (Roth spots)
4/painless palm or sole erythematous
lesions (Janeway lesions)
5/ painful fingertip nodules (Osler nodes)
are clinical features of
endocarditis
in endocarditis infections with aerobic gramnegative bacilli or fungi are associated with fatality rate of approximately?
50%
wartlike vegetations is characterizes of?
Libman Sacks Endocarditis
in DCM
what is the genetic mutation causes it?
♕most common
1/@ cardiac actin
2/ X linked (dystrophin)
♕uncommon
1/mitochondrial protein
2/desmin
3/nuclear lamins A and C
4/the same hypertrophic genes mutation but loss of functions not gain of functions
in DCM patients
what is the virus that can be detected in the myocardium form late stage?
coxsackievirus B
and other (enterovirus)
in DCM
what alcohol and toxic exposure that causes it includes?
1/acetaldehyde
2/thiamine deficiency (beriberi heart disease)
3/cobalt
4/doxorubicin (Adriamycin)
what is the factors that responsible for impaired angiogenesis in peripartum cardiomyopathy?
1/Antiangiogenesis cleavage products of hormone (prolactin)
2/placental-derived antagonists to the VEGF
when the peripartum cardiomyopathy occurs?
late in gastation or
several weeks to months postpartum
accumulation of intracellular Hemosiderin demonstrable by staining with?
Prussian blue
the heart in DCM is enlarged up to……… times the normal weight?
two to three
DCM most commonly is diagnosed between………. years of age?
20 and 50
what is the causative mutation genes of Arrhythmogenic Right ventricular cardiomyopathy?
1/desmosomal junctional proteins at the intercalated discs (plakoglobin)
2/proteins that interact with desmosome (desmin)
in Hypertrophic cardiomyopathy (HCM)
what is genes mutation that responsible for 70-80% of all cases?
1/Beta myosin heavy chain (most frequently)
2/myosin binding protein C
3/troponin T
the left ventricular outflow tract giving raise to a (banana shabed) in?
HCM
what is the most common form of restrictive cardiomyopathy (endomyocardial fibrosis)?
Endomyocardial fibrosis
treatment of loeffler endomyocarditis by?
tyrosine kinase inhibitors