Path slide set 4 Flashcards
3 causes of left to right shunts
- ASD
- VSD
- PDA
Genes for Tetrology of Fallot
JAG1 and NOTCH2
Valve doesn’t open completely, occurs chronically and impedes forward flow
Stenosis
age for dilated cardiomyopathy
usually between 20-50
What congenital defect can cause shunting that causes volume overload on the right side leading to
- pulmonary hypertension
- right heart failure
- Paradoxical embolization
Atrial septal defect
with IV drug users, what side of the heart is often involved in infective endocarditis
right
Valve doesn’t close completes, may occur acutely or chronically. allows reversed flow
insufficiency
Gender and age for mitral annular calcification
Females more and >60
What cardiotoxic drugs/substances are associated with dilated cardiomyopathy?
- doxorubicin (chemotherapy)
- cobalt
- iron overload (repeated transfusions)
What time frame does Acute RF occur after grp A strep infection
10 days to 6 weeks with Anti-Streptolysin O
Apical ballooning of left ventricle with abnormal wall motion and contractile dysfunction
Takotsubo cardiomypathy
fish mouth stenosis
RHD
most common primary tumor of adult heart?
Myxomas
Most common genetic cause of congenial heart disease
Trisomy 21
What is the coarctation in relationship to the vessels that supply the upper body?
After
Bizarre Enlarged myocytes with a cytoplasm appearance of “spider cells”
Rhabdomyoma
Genetic disorder leading to myocardial hypertrophy and diastolic dysfunction, leading to reduced stroke volume and often ventricular outflow obstruction
Hypertrophic cardiomyopathy
Excess catecholamines following extreme emotional or psychological stress
Takotsubo cardiomyopathy
Most are asymptomatic but a miniority might have pain mimicking angina and dyspnea
mitral valve prolapse
SUBACUTE infective endocarditis vegetations may have what component
granulation tissue
the vegetations in infective endocarditis are mixtures of what?
fibrin, inflammatory cells (neutrophils) and organisms
Nonbacterial thrombotic endocarditis may be a source of what?
associated with what?
emboli
malignancies (especially mucinous adenocarcinomas)
Extracellular deposition of proteins which from an insoluble beta-pleated sheet
Amyloid
decrease in ventricular compliance leading to diastolic dysfunction
Restrictive cardiomyopathy
What valvular problem comes about from mitral annular calcification?
mitral valve prolapse
what type of hypertrophy does Calcific aortic stenosis cause?
pressure overload hypertrophy
What do affected valves with calcific aortic stenosis contain?
osteoblast-like cells, which deposit an osteoid-like substance–>ossifies
This is generally seen with a PDA if found in infancy and without a PDA in adults form
Coarctation of the Aorta
Mutations for Myxomas
- GNAS (McCune-Albright syndrome)
- PRKAR1A (null mutation in Carney complex)
immune response to streptococcal M protein cross reacts with cardiac self antigens
Pathogeneis of Rheumatic heart disease
Collapse of young athlete and sudden death
Hypertrophic cardiomyopathy
What organism causes infective endocarditis in really acute setting or with IV drug user
S. aureus
if you have mitral valve stenosis what is most likely the cause?
Rheumatic heart disease
Where do calcific deposits occur in Mitral annular calcification?
the fibrous annulus
- NOT leaflets like in aortic
- doesn’t affect valve function
what organism causes infective endocarditis in someone with a prosthetic valve
S. epidermidis
a slower progressing infection of a PREVIOUSLY deformed valve (such as in chronic RHD)
SUBACUTE infective endocarditis
What valve abnormality shows accelerated course for calcific aortic stenosis?
bicuspid valve
Progressive cardiac dilation and systolic dysfunction, usually with dilated hypertrophy
dilated cardiomyopathy