Heart Pathology Flashcards
Three mechanism that initially maintain CO in HF
- Frank-starling mechanism
- Hypertrophy and/or dilation
- Neurohormonal
Parallel formation of new sarcomeres leading hypertrophy is triggered by ____ overload
pressure
parameter: wall thickness
Series formation of new sarcomeres leading to dilation is triggered by ____ overload
volume
parameter: weight
[diagnosis/type of HF]
liver congestion, spleen congestion, kidneys and brain congestion,
ascites, third spacing, edema
pronounced azotemia
RSHF
[type of HF]
DOB, orthopnea, PND, prerenal azotemia, hypoxic encephalopathy
LSHF
this marks the irreversibility of CHD lesions
pulmonary hypertension
most common type of ASD
Ostium Seccundum (90%)
[diagnosis]
fixed, widely split S2, pulmonary-stenosis like murmur, normal aortic knob
ASD
most common CHD
VSD
most common type of VSD
perimembranous
[diagnosis]
continous machinery-like murmur, decreased PVR, decreased PGE2, increased oxygen tension
prominent aortic knob
PDA
administration of this maintains patency of PDA
PGE2
___ shunt
paradoxical embolism, clubbing, polycythemia
right to left shunt
[diagnose this R-L shunt]
increased pBF, RVH
TGA or TAPVR
[diagnose this R-L shunt]
increased pBF, LVH
TGA+VSD or PTA without hypoplastic PA
[diagnose this R-L shunt]
decreased pBF, LVH
TA, Pulmonic atresia
[diagnose this R-L shunt]
decreased pBF, RVH
TOF
most common cyanotic CHD
TOF
components of TOF
VSD, pulmonary stenosis, overriding aorta, RVH
cour en sabot
TOF
boot shaped heart
[cyanotic heard disease]
This is associated with PFO, ASD, PDA
apple on a stem appearance
TGA
aortic stenosis can lead to ___ hypertrophy
LVH
pulmonic stenosis can lead to ___ hypertrophy
RVH
[diagnosis]
rib notching on CXR, UE HPN, LVH
location of CoA
Opposite the ligamentum arteriosus, distal to the arch
adult type = post ductal
loss of contractility happens in ___ minutes of ischemia
less than 2 minutes
irreversible injury happens in ____ minutes of ischemia
20 to 40 minutes
___ marker for myocardial reinfarction
CKMB
Transmural infarction results to permanent occlusion which reflects as ____ type of MI in ECG
STEMI
Subendocardial infarction results to transient occlusion which reflects as ____ type of MI in ECG
NSTEMI
most common main vessels involved in MI
LAD > RCA > LCX
___ helps distinguish viable and infarcted tissues after MI (pale zone)
Triphenyltetrazolium chloride
most sensitive and specific cardiac biomarker
cardiac troponin (Trop I and T)
___ syndrome
fibrinous pericarditis post MI
Dressler Syndrome
most common mechanism of sudden cardiac death
lethal arrythmia
most common cause of arrythmia
ischemic injury
earliest change in Left sided HF
increase transverse diameter of myocytes
most common known cause of mitral valve prolapse
fibrillin 1 gene defect
[diagnosis]
plump activated macrophages (abundant cytoplasm with round to ovoid nuclei and condensed chromatin pattern)
Rheumatic fever
[diagnosis]
condensed chromatin pattern, slender wavy ribbon
“caterpillar cells”
anitschkow cells = Rheumatic fever
Most commonly involved heart valve in RHD
mitral
hallmark if IE
vegetation
most common cause of acute IE in IV drug users
S. aureus
most common cause of subacute IE
HACEK
Haemophilus Aggregatibacter Cardiobacterium Eikenella corrodens Kingella
[diagnosis]
vegetations
small, bland vegetations attached to the closure line, loosely attached to the underlying valve
associated with systemic hypercoaguable states
NBTE/Marantic endocarditis
[diagnosis]
vegetations
small or medium sized vegetation on either or both side of the leaflet
Libman-Sacks Endocarditis
[diagnosis]
vegetations
friable, bulky, destructive, contains ffibrin, may embolize
IE
[diagnosis]
vegetations
calcification and fibrous bridging, along lines of closure, overlying foci of fibrinoid necrosis
RHD
Causes hypertrophic CM
- genetic
- Friedrich ataxia
- storage diseases
- Infants of diabetic mothers
Amyloidosis is a ___ pattern of cardiomyopathy
restrictive
cardiomyopathy that mimics IHD, VHD, HHD, CHD
dilated
cardiomyopathy that mimics HHD and AS
hypertophic
Most common helminth that cause myocarditis
Trichnella spiralis
Most common viral cause of myocarditis
Coxsackie A, B
Enterovirus
most common primary cardiac tumor in adults
Myxoma
[diagnosis]
ball-valve obstruction, embolization, commonly seen in atria
usually solitary, sessile or pedunculated masses mottled with hemorrhage
myxoma
most common primary cardiac tumor in children
rhabdomyoma
[diagnosis]
thin strands of cytoplasm that stretch from the nucleus to the surface membrane “spider cells”
multiple, gray-white masses
rhabdomyoma
[diagnosis]
- Increased JVP
- Arterial hypotension
- Muffled heart sounds
cardiac tamponade
water-bottle appearance
cardiac tamponade
[diagnosis]
chest pain relieved when leaning forwards
pericardial friction rub
acute pericarditis