Flashcards in Hypertension General Deck (33)
____% of australians over 25 have HTN?
does BP increase with age?
Yes, Systolic/pulse pressure more so
Definition of HTN?
What is primary HTN? what %?
no identifiable cause 90-95%
what is secondary HTN? what %?
has a cause. 5-10%
what is 'benign' HTN?
slow rise, doesn't get crazy high
what is malignant HTN?
rapid rise in BP
2 forces that control BP?
Cardiac output: SV, HR, Volume
what happens to aorta in age related change?
increased collagen in intima
age related change in small/medium arteries?
intimal thickening due to collagen
what commonly happens in arterioles with age related changes?
hyaline arteriolosclerosis (glassy)
what is hyaline arteriolosclerosis?
deposition of plasma proteins in vessel walls
does HTN have a single gene defect?
Nope. Very Polygenic
HTN multifactorial such as?
age, gender race
who has lower blood pressure? premenopausal, age-matched males, post menopausal?
How do you get wide pulse pressure? 2 main reasons
decreased compliance of aorta
increased stroke volume
secondary HTN causes? 5 main?
Endocrine: from tumours over producing
other: OSA, preg
Does atherosclerosis cause hypertension?
In some circumstances
main problem that essential HTN causes?
What can happen with HTN in:
Circle of Willis?
main vessel defect in aneurysm is because of weakening of?
Where is the blood in an aortic dissection?
in the media
Does a reduced LV chamber size cause cardiac failure
why is the kidney sensitive to HTN?
what can hyaline arteriolosclerosis cause chronically?
what is a marker of severity of chronic kidney disease?
What's the most common cause of HTN induced kidney infarct?
atheroemboli: cholesterol crystal
two things that can happen in brain with HTN? 3 things
infarct from hyaline arteriolosclerosis
what happens in retina with HTN?
AV nipping, exudates, ischaemia, haemorrhages