Pulmonary Hypertension

Question 1

Pulmonary Hypertension

Define

Answer 1

Pulmonary blood pressure above 20mm Hg

Question 2

Passive Pulm HPT

Answer 2

Cause: raised left atrial pressure

Due to: Mitral stenosis, LV failure, LA myxoma

Results: Pulm Oedema, reflex vasoconstriction, sclerotic changes in arteries & veins

Fix: mitral valve surgery

Question 3

Hyperkinetic Pulm HPT

Answer 3

Cause: increase blood flow through lungs

Due to: ASD/ VSD

Question 4

Obstructive PH

Answer 4

Cause: blockage of Pulm vessels

Due to: Emboli

Question 5

Obliterative PH

Answer 5

Cause: Destruction of pulm vessels

Due to: Emphysema/arteritis/ pulm fibrosis

Question 6

Vasoconstrictive PH

Answer 6

Cause: PO² < 60mm hg
Results: both lungs hypoxic due to redistribution

Question 7

Idiopathic PH

Answer 7

Mostly woman 20-40years

Pathology: lesions of plexogenic pulm ateriopathy

Question 8

Cor Pulmonale

Answer 8

Hypertrophy of RV

Cause: primary respiratory diseases

Excludes: hyperkinetic PH and passive PH