PVD, IHD and acute coronary syndrome Flashcards

1
Q

what is pvd?

A

peripheral vascular disease- atherosclerosis affecting peripheral vessels. E.g limbs/aorta (abdomen)

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2
Q

what are the symptoms of chronic ischemia in limbs?

A
  • intermittent claudication in calves when walking
    -skin/nail changes
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3
Q

how would you assess the severity of chronic ischemia of lower limbs?

A

ask how far they can walk before pain begins i.e short distance and pain= greater severity of disease

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4
Q

what causes acute ischemia of limbs?

A

embolus/plaque rupture = emergency

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5
Q

what are the symptoms of acute ischemia of limbs?

A

-pale
-pulseless
-cold
-constant severe pain
-paralysed

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6
Q

how is pvd of lower limbs managed?

A

-risk factor modification
-exercise
-surgery (stent, bypass graft, amputation)

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7
Q

what does atherosclerosis of the aorta cause?

A

abdominal aortic aneurysm due to swelling of the aorta

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8
Q

what does swelling of the aorta lead to?

A

swelling-weakens walls-risk of rupture-bleed out/death

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9
Q

who is most at risk of abdominal aortic aneurysm?

A

men over the age of 65- they must undergo screenings.

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10
Q

what are the symptoms of abdominal aortic anuerysm?

A

-often asymptomatic
-vague abdominal pain

if acute/rupture- severe pain- requires surgery and has a 50-90% mortality rate.

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11
Q

what is the top cause of mortality in the western world?

A

ischemic heart disease

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12
Q

does stable angina cause pain on exertion or rest?

A

exertion

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13
Q

is stable angina acute or chronic?

A

chronic

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14
Q

what investigation would be use to assess angina/ischemic heart disease?

A

Echocardiogram- dye placed in catheter outlines sclerosis (narrowing) of the arteries.

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15
Q

what causes stable angina?

A

narrowing of the coronary arteries by atherosclerosis

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16
Q

what are the symptoms of stable angina?

A

-chest pain on exertion
-breathlessness
-nausea

17
Q

what relieves chronic angina symptoms?

A

rest and nitrates i.e GTN spray

18
Q

how do you management stable angina?

A

-modification of risk factors
-management of underlying contributory conditions
-surgery- stents and bypass graft
-drugs including antiplatelet (clopidegrel and aspirin), statins to lower cholesterol, vasodilators such as gtn spray, calcium channel blockers and beta blockers.

19
Q

what does unstable angina cause?

A

acute coronary syndrome in the form of myocardial ischemia or myocardial infarction

20
Q

does unstable angina cause chest pain at rest?

A

yes

21
Q

what should you NEVER give someone with acute coronary syndrome?

A

IM injection- this will cause excessive bleeding

22
Q

what causes unstable angina?

A

plaque rupture- where a thrombus forms over the plaque which partially blocks the coronary arteries (myocardial ischemia) or completely occludes the coronary arteries (myocardial infarction).

23
Q

do myocardial ischemia and myocardial infarction have the same symptoms?

A

yes

24
Q

what are the symptoms of unstable angina?

A

-chest pain at rest or min exertion
-pain radiating down left arm
-severe pain
-clammy/dizzy
-fear of impending doom
-cardiac arrest (heart stops pumping-pt not breathing)

25
Q

is unstable angina a medical emergency?

A

YES

26
Q

how would you manage someone with unstable angina?

A

abcde assessment and 999

-999 and send someone for AED- stay with patient
-sit pt up/comfortable position
-abcde assessment
-high flow o2
-gtn spray
-aspirin
-if collapse start BLS
-handover notes

27
Q

what is considered a high flow of oxygen?

A

15 litres/min

28
Q

what is the correct gtn dose?

A

800mg- 2x400mg
2 sprays under the tongue
3 times- 5 mins apart

29
Q

what is the correct dose of aspirin?

A

300mg