CHD + Right Ven. Failure

Question 1

Definition of CHD

Answer 1

Right + Left HF => ischaemic injury

leading to inc. workload + decreased cardiac output w/chronic activation of compensating systems => HF

Question 2

Causes of RVF (3)

Answer 2

Left sided failure

Tricuspid / Pulmonary valve disease

Pulmonary vascular disease (PE, Pulm.HTN)

Question 3

4 signs / symptoms of RVF

Answer 3

Peripheral Oedema
Ascites
Raised JVP
Hepatomegaly

Question 4

With CHD, there is activation of the RAAS. What happens to Na + H20 and the peripherals?

What does this ultimately increase in the heart in terms of load

Answer 4

Na + H20 Retention
Peripheral Vasoconstriction

RAAS ==> Inc. Preload

Question 5

With CHD, there is activation of the SNS. What happens to HR and the peripherals?

What does this ultimately increase in the heart?

Answer 5

HR Increase
Peripheral Vasoconstriction

SNS ==> Inc. Afterload

Question 6

As a compensation via AG2 via RAAS, what happens to the size of the heart

Answer 6

Cardiomegaly w/increase myocyte size (AG2)

Question 7

What are the 5 actions of AG2

Answer 7

Stimulate aldosterone release => Adrenal
Stimulates Na + H20 Retention => Kidneys
Stimulates Hypertrophy => Heart

Stimulates SNS activation => Brain
Stimulates Vasconstriction => P.vessels