Heart Failure Therapy Flashcards

1
Q

Two types of Heart failure

A

systolic

diastolic

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2
Q

Systolic heart failure

A

decreased pumping function of the heart

fluid generates in the lungs and you get heart failure

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3
Q

Diastolic heart failure

A

thickened/stiff heart

therefore heart doesn’t fill with blood properly

(fluid generates in lungs and you get heart failure)

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4
Q

Risk factors for heart failure

A

coronary artery disease

hypertension

valvular heart disease

alcohol

infection

diabetes

congenital heart defects

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5
Q

Frank starling law

A

is the muscles of a healthy heat is stretched it will contract with greater force and pump out more blood

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6
Q

as circulatory volume increases, the heart dilates and the force of contraction

A

weakens, and cardiac output drops further

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7
Q

reduced cardiac output will activate what system?

A

RAAS system

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8
Q

Loss of blood (circulatory system) will lead to

A

vasoconstrictor system activation (sympathetic)

salt and water retention (RAAS)

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9
Q

The RAAS causes the release of

A

angiotensin II

aldosterone

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10
Q

The result of RAAS activation is

A

salt and water retention

vasoconstriction

hypertrophy

fibrosis of cardiac myocytes

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11
Q

Activation of the sympathetic system causes the release of

A

adrenaline

noradrenaline

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12
Q

noradrenaline and adrenaline release ill cause

A

vasoconstriction

stimulate renin release

myocyte hypertrophy

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13
Q

Progressive retention of salt and water results in

A

oedema

pulmonary oedema

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14
Q

Treatment to improve symptoms

A

diuretics

digoxin

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15
Q

treatment to improve symptoms AND survival

A

ACE inhibitor

spironolactone

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16
Q

Treatment to improve survival

A

beta blockers

ivabradine

17
Q

Heart failure symptomatic treatment mat also involve treating

A

loop diuretics

sympathetic activation

(biosprolol)

18
Q

two groups of drugs to block the effects of angiotensin II

A

ACE inhibitors (ramipril)

Angiotensin antagonists (Valsartan, Losartan)

19
Q

Aldosterones effects can be blocked by

A

spironolactone

20
Q

ANP and BNP are potent

A

vasodilators

21
Q

Enhancing cardiac function can be done by treating with

A

positive inotropes

vasodilators

22
Q

Positive inotropes

A

improve the ability of the heart to pump and improve cardiac status

23
Q

passive inotrope drug commonly used

24
Q

Loop diuretics function

A

removes excess water and salt

inhibit the Na-K-Cl transporter in the loop of henle

25
Diuretic patients can use in combination with thiazide diuretics - however this can induce diuresis of
5-10 litres per day
26
What drug groups would be used to reduce mortality?
angiotensin blocker beta receptor blocker aldosterone blocker ANP/BNP enhancer
27
ACE inhibitor drugs
Ramipril Enalapril Lisinopril
28
ACE inhibitors function
competitively block angiotensin II converting enzymes reduced preload AND after load on heart
29
Angiotensin II receptors blockers are only used when
ACE inhibitors can't be | ACEI are more effective
30
Aldosterone antagonist
spironolactone | diuretic (used in combination with loop diuretics)
31
Beta blockers examples
carvedilol bisoprolol metoprolol
32
Beta blockers should only be used on patients with chronic heart failure when they have
stabilised
33
Ivabradine
specific inhibitor of the If current in the sinoatrial node
34
Positive inotrope example
digoxin
35
Digoxin
increase availability of calcium in the myocyte reduced number of hospital stays
36
anticoagulant example
warfarin
37
warfarin
prevents thrombus formation and thrombosis-embolic events
38
always monitor their weight daily for...
how much fluid they may be loosing etc