CVD 1 AND 2 Flashcards
what are cvds
this are diseases that affect the cardiovascular system
they include coronary heart disease , stroke , peripheral vascular disease
coronary heart disease
stable and unstable angina
acute myocardial infarction also known as a heart attack
sudden death which is because of a history of chest pain.
stroke
it is localised loss of brain function due to ischaemia and haemorrhage which lasts more than 24 hours
types of strokes
haemorrhagic strokes caused by aneurysms
ischaemic strokes caused by thrombosis and embolus
peripheral vascular disease
disease of the aorta , the iliac and leg arteries and often coexist with CVD
they are caused by atherosclerosis
rheumatic heart disease
damage to the valves and the muscles form rheumatic fever caused by streptococcus bacteria
congenital heart disease
malformations of the heart caused by embryological defects at birth
dvt and pe
thrombosis at deep veins which can break of and travel to other regions of the body for example lung
how does an atherosclerotic plaque form?
fatty streak present in the vascular system - macrophage attack to get rid off- formation of foam cells as macrophage unable to get rid off- formation of a fibrous cap - due to the increased turbulence of blood - the fibrous cap can be weakened and this leads to the formation of a thrombus
arterosclerosis
calcification of the atheroma present in an artery
risks of cvd
smoking as it damages blood vessels
alcohol increases blood pressure
foetal and infant growth
genetic
obesity
Proatherogenic diet
cholesterol
saturated fatty acids
trans fatty acids
sorium as it increased blood pressure
alcohol increases blood pressure
anti atherogenic
poly- unsaturated fatty acids
carbohydrate rich diet instead of refined sugar
mono-unsaturated fatty acids eg olive oil
antioxidants present in fruits o
non -starch carbohydrates
phytochemicals such as green tea , garlic and onions
good cholesterol
high density lipoprotein is less associated with coronary heart disease
limitations of saturated fatty acids
men no more than 30g a day and women no more than 20g a day
recommendation for intake of trans fat
5g a day for an adult
sodium intake and potassium intake
lower bp low sodium and more potassium
recommended intake of alcohol
30 units weekly
monounsaturated fatty acids
mainly oleic acid which is a substitution of saturated fatty acids and reduces low density lipoprotiens
n3 poly-unsaturated fatty acids
marine origin
carbohydrates
High CHO diet
reduce risk of CHD by reducing fat intake. Should constitute
around 50% of total energy intake
antioxidants
They include Se, Zn, Mn, vit C and E, as well as carotenoids (βcarotene, luthein and lycopene) and flavonoids. High intake
of vit C, E and fruits and vegetables are associated with lower
risk of CVD
whole grains in human diet
amaranth , barley , brown rice , buck wheat , bulgur , grano, millet , oat meal , popcorn , sorghum , whole corn , whole rye , whole wheat