Pathology Flashcards
“blue babies”
early cyanosis, right-to-left shunts
Right-to-left shunts
The 5 T’s
- Truncus arteriosus (1 vessel)
- Transposition (2 Vessels)
- Tricuspid atresia
- Tetralogy of Fallot
- TAPVR
Persistent Truncus arteriosus
right-to-left shunt
failure of truncus arteriosus to divide into pumonary trunk and aorta; have accompanying VSD
D-transposition of great vessels
right-to-left shunt
aorta leave right ventricle, pulmonary trunk leaves left ventricle
failure of aorticopulmonary septum to spiral
Need PDA, VSD or patent foramen ovale
Tricuspid Atresia
right-to-left shunt
absence of tricuspid valve and hypoplastic RV; requires both ASD and VSD
Tetralogy of Fallot
PROVe pulmonary infundibular stenosis RVH Overriding aorta VSD
tet spells
Tetralogy of Fallot
boot-shaped heart on CXR
right ventricular hypertrophy (part of tatralogy of fallot)
How to improve cyanosis with tetralogy of fallot
Squat to increase systemic pressure shunting blood to the lungs for oxygen
Total anomalous pulmonary venous return (TAPVR)
pulmonary veins drain into right heart circulation
associated with R-to-L shunting
Most common congential cardiac defect
VSD (L-to-R shunt)
Fixed split S2
ASD
Paradoxical Embolus
DVT in this patient will lodge in the systemic circulation (brain) - from ASD
Most common cause of ASD
Failure of Ostium Secundum tissue
ASD from failure of Ostium primum
Associated with Down’s
Late Cyanosis in lower extremities
PDA
Congenital Rubella
Patent Ductus Arteriosus
Indomethacin
closes PDA
Patency of PDA
low oxygen tension and PGE
holosystolic machine-like murmur
PDA
Uncorrected Left-to-right shunt causing increased pulm flow remodeling the vasculature leading to pHTN, RVH and shunt reverses to right-to-left.
Eisenmenger Syndrome
Bicuspid aortic Valve
Associated with coarction of aorta
Aorta narrowing proximal to ductus arteriosus. Associated wtih PDA
Infantile type Coarction of aorta
Aorta narrowing distal to ductus arteriosus.
notching of the ribs
Adult type coarctation of aorta
HTN of upper extremities and delayed pulses in lower extremities
Adult type coarctation of aorta
22q11 syndromes
Truncus arteriosus, tetralogy of Fallor
Down Syndrome
ASD, VSD, AV septal (endocardial cushion) defect
Congenital Rubella
Septal defects, PDA, pulmonary artery stenosis
Turner Syndrome
Bicuspid aortic valve, coarctatino of aorta (preductal)
Marfan Syndrome
MVP, thoracic aortic aneurysm and dissection, aortic regurgitation
Infant of Diabetic Mother
Transposition of Great Vessels
Essential HTN
Most common type of HTN,(90-95%) related to increase CO and TPR
Secondary HTN
secondary to renal disease including fibromuscular dysplasia in young patients
Hypertensive emergency
> 180/120mmHG, evidence of acute, on-going target organ damage
“string of beads”
renal artery in fibromuscular dysplasia, cause of HTN in young women
Renal Artery Stenosis
affected kidney atrophy, increased plasma renin
atherosclerosis in old men, fibromuscular dysplasia in young women
benign HTN
mild/moderate increase in BP, clinically silent, vessels and organs are damaged over time
malignant HTN
sever increase in BP >200/120mmHg
de novo or from benign HTN
Xanthelasma
xanthoma of eyelid
Plaques/nodules of lipid-laden histiocytes in the skin
Xanthoma
Tendinous xanthoma
Achilles tendon #1
Lipid deposit in cornea, appears early in life with hypercholesterolemia
Corneal arcus
Calcification in the media of the arteries
Monckeberg (medial calcific sclerosis)
Pipestem ateries on X-ray
Monckeberg (medial calcific sclerosis)
Thickening of small arteries in essential HTN or diabetes
Hyaline arteriololsclerosis
Hyperplasia of vessel smooth muscle - “onion skinning” seen in severe HTN
Hyperplastic asrteriolosclerosis
Dx of elastic arteries and lg and med muscular arteries
Atherosclerosis
Macrophage and LDL accumulation, leaves fatty streaks
Atherosclerosis
Most common location for atherosclerosis
Abdominal Aorta > Coronary Artery > Popliteal Artery > Carotid and internal carotid artery
Pulsatile Abdominal Mass
Abdominal aortic aneurysm (usually >50y/o smoking man)
Cystic Medial degeneration
Thoracic aortic aneurysm
Obliterative endarteritis of vasa vasorum
Thoarcic aneurysm associate with tertiary syphilis
Tree bark appearance of thoracic aorta
Obliterative endarteritis of vasa vasorum, tertiary syphilis
Hypotension, Pulsatile Abdominal Mass, Flank Pain
Ruptured abominal aorta
Longitudinal intraluminal tear forming a false lumen
aortic dissection
Tearing chest pain, sudden onset radiating to the back
Aortic dissection
Complication of Aortic Dissection
Pericardial Tamponade
Reversible Chest Pain <20 minutes
Angina
exertional/emotional chest pain, resolves with rest
ST depression, Stable Angina
ST depression
subendocardial ischemia
Chest pain at rest due to coronary artery spasm
Variant Angina (ST elevation)
ST elevation
Transmural ischemia
Treatment of Variant Angina
CCB, Nitrates, Smoking Cessation
Thrombosis with incomplete coronary artery occlusion causing increased frequency or intensity of chest pain
Unstable/crescendo angina (ST depression)
Complete occlusion of coronary artery and myocyte necrosis
Myocardial Infarction
ST elevation if transmural ischemia, ST depression if sunendocardial ischemia
Death from cardiac cause within 1 hour of onset of symptoms
Sudden Cardiac Death
Severe Crushing Chest Pain >20minutes radiating to left arm or jaw
Myocardial infarction
Most common places for myocardial infarction
LAD > Rt Coronary artery > Left Circumflex artery
4-12hr after MI
coagulative necrosis, edema, hemorrhage, wavy fibers
12-24hr after MI
neutrophil migration starts, reperfusion injury possible band contraction
dark mottling; pale with tetrazolium stain
extensive coagulative necrosis, tissue surrounding infarct should acute inflammtion with neutrophils
1-3 days post-MI
chest pain and friction rub 1-3days post-transmural MI
Fibrinous pericarditis
Hyperemic border; central yellow-brown softening
Macrophages and granulation tissue at margins
3-14days post-MI
Complications of Macrophages post-MI
free wall rupture (tamponade); papillary muscle rupture (MR), IV septal rupture (L-to-R shunt)
First 6hrs of MI, Gold Std
ECG