Taylors Flashcards

1
Q

Changeable and reduces risk

A

HTN, SMoking

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2
Q

HTN confers and increase CAD risk through which 4 mech?

A
  1. sheer stress → endothelial cell injury
  2. arterial wall stress → pathological cell signaling
  3. circulating hormones → aldos + NE have adverse effects on wall
  4. increased heart work → LVH
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3
Q

HTN is a bigger risk factor in which, stroke or CAD?

A

Stroke!

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4
Q

How does HDL oppose atherothrombosis?

A
  1. blocks LDL oxidation
  2. Reverse cholesterol transport (enhanced)
  3. ↑ NO synthesis
  4. ↓ adhesion molecules
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5
Q

Diff between skeletal muscle and

A

myocardial muscle depends on aerobic metabolism!

*remember supply ox demand?

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6
Q

What change in blood vessel can compensate for the drop in pressure?

A

dilation of resistance vessels after stenosis

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7
Q

3 factors that increase myocardial oxygen demand

A
  1. HR
  2. Wall tension
  3. Inotropic state
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8
Q

Impaired ca2+ reuptake into SR results in __________

Decreased phosphates results in ________

A
diastolic dysfunction
(cant reuptake into SR - cant relax)

Systolic dysfunction

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9
Q

3 causes of aortic aneurisms

A

atherosclerosis
marfans
syphylis

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10
Q

Monosomy X (Turner syndrome) results in which malformations?

A

coarctation of aorta
bicuspid aortic valve
hypoplastic left heart syndrome

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11
Q

DiGeorge
Noonan
Williams
results in which malformations?

A

DiGeorge: Tetralogy of fallot, truncus arteriosus, aortic arch deficit

Noonan: pulmonary stenosis

Williams: aortic stenosis

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12
Q

DiGeorge
Noonan
Williams
results in which malformations?

A

DiGeorge: Tetralogy of fallot, truncus arteriosus, aortic arch deficit

Noonan: pulmonary stenosis

Williams: Supravalvar aortic stenosis

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13
Q

Rubella (infectious) can result in which congenital malformation?

A

PDA

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14
Q

Describe A v B dissections

A

A - involves ascending aorta

B - dissections that take off after great vessels

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15
Q

Which vasculitis is associated with med-small arteries with lesions at various stages?

A

polyarteritis nodosa

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16
Q

Which vasculitis is associated with arterioles, capillaries, venules, with lesions at the same stages?

A

Microscopicpolyarteritis

17
Q

Which vasculitis is associated with arteries of the head, temporal arteries, opthalmic branch?

  • what is a complication?
  • population affected?
A

Temporal arteritis

blindness

elderly >50

18
Q

What type of vasculitis involves both lungs and kidneys and has a >90% mortality in 2 years if left untreated?

A

wegener’s granulomatosis

19
Q

Which vasculitis large vessels, affects aorta, main br of pulm aa?

  • pop affected?
  • symp?
A

Takayasu’s arteritis (pulseless disease)

younger people

20
Q

Which vasculitis commonly affects infancy and early childhood?

  • common symp
  • which artery is commonly affected?
A

kawasaki’s

fever, erythema of palms and soles

coronary a

21
Q

Which vasculitis is associated with cigarette smokers? It leads to thrombosis of which vessels?
It leads to which complication?

A

Buerger’s disease

medium sized vessels, tibial/radial arteries

  • gangrene
  • nerve pain
22
Q

Which vasculitis involves clots forming in deep leg veins and can result in death from pulmonary emboli (saddle embolus)

A

thrombophlebitis

23
Q

Which vasculitis is associated with cigarette smokers? It leads to thrombosis of which vessels?

A

Buerger’s disease

medium sized vessels, tibial/radial arteries

  • gangrene in smokers
  • nerve pain
24
Q

Drivers of plaque instability

A
  1. MMP
  2. Intraplaque hemorrhage –> weaken core
  3. Macrophage apoptosis/necrosis
    - secretes proinflammatory signals
25
Q

Statins decrease which two things that indicate CV risk?

A

cholesterol and CRP

26
Q

what does lit say about anti-inflammatory meds preventing CV events?

A

No proven benefits

ie: in RA/psoriasis

27
Q

4 risk factors for PAD

A

diabetes
smoking
lipids
HTN

28
Q

Difference between acute limb ischemia and claudication?

A

Both are PAD conditions

ALI: blockage that causes ischemic rest pain, ulcers, worsened by elevation

Claudication: obstructive stable plaque causes exertional ischemia –> ouchie

29
Q

Signs of PAD

A
• Decreased or absent pulses
	• Bruits (abdominal, femoral)
	• Muscle atrophy
	• In severe PAD:
		○ Pallor of feet with elevation
			§ Red when dangling, white when lifted
		○ Dependent rubor (CRITICAL!!)
30
Q

Two mech of aortic dissection

A

tear in the intima

rupture of vasa vasorum (ie: syphilis)

31
Q

what does the suffix - Parinux and -xaban tell you?

A
  • parinux : indirect factor Xa inhibitors (requires AT as cofactor)
  • xaban : direct Xa inhibitors
32
Q

At what ejection fraction should beta-blockers be prescribed?

A
33
Q

Name that vessel that does the following
blood flow from the placenta
blood flow from the yolk sac
blood flow form the embryo

A
  • umbilical vein
  • vitelline vein
  • cardinal vein
34
Q

What keeps the PDA open? What closes it?

A

Open: PGE2

Close: Cox inhibitors, PaO2

35
Q

What does a machine like murmur indicate?

A

PDA!

continuous sound

36
Q

two neg outcomes of untreated PDA

A

subacute bacterial endocarditis

eisenmenger’s syndrome

37
Q

What heart sound is heard with a large ASD?

A

Widely split S2

RV overload due to shint causes delayed P2 closure (not related to blood across the shunt)

38
Q

Clinical complications of coarctation due to decreased blood flow in
Infants
Older children

A

Infants: necrotizing enterocolitis

Children: Claudication in legs

Increase RAAS due to lower kidney perfusion