W24 Cardiovascular Therapeutics Flashcards
In men what % mortality is related to heart and circulatory diseases
28.4%
In woman what % mortality is related to heart and circulatory diseases
26.7%
In men over 75 what % mortality is related to heart and circulatory diseases
24.5%
In woman over 75 what % mortality is related to heart and circulatory diseases
17.2%
what are the risk factors modifiable
hyper tension physical inactivity smoking diet and weight diabetes cholesterol stress
what are the risk factors non modifiable
age / sex
family history
race / ethnic background
What preventions exist for managing cardiovascular disease
regular exercise
well balanced diet
other lifestyle choices
What risk assessment for CV diseases exists
CG181, 1 recommendations | Cardiovascular disease: risk assessment and reduction, including lipid modification | Guidance | NICE.
when should CG181 be assessed
reviewed on an ongoing basis after age 40
what should be done if estimate a 10 year risk factor
> 10% full formal risk assessment should be considered
what is coronary heart disease
disease of the blood vessels supplying the heart muscle
what is cerebrovascular disease
disease of blood vessels supplying the brain
what is peripheral arterial disease
disease of blood vessels supplying the arms and legs
what is rheumatic heart disease
damage to the heart muscle and heart valves from rheumatic fever, caused by streptococcal bacteria
what is cogenital heart disease
malformations of heart structure existing at birth
what is deep vein thrombosis and pulmonary embolism
blood clots in the leg veins, which can dislodge and move to the heart and lungs.
what are the causes of secondary hypertension
adrenal gland disorders
kidney diseases
drugs
pregnancy
what is involved in the regulation of blood pressure
blood volume blood viscosity cardiac output total peripheral resistance BP = CO X TPR
What occurs in the resistance vessels
consists of small arteries and arterioles, largest pressure drop occurs here. Thus contractile state of these arteries has a massive impact on blood pressure
how does the body maintain a “normal” blood pressure in response to rising bp
on an increase the arterial blood pressure rises above normal range
baroreceptors in carotid sinuses and aortic arch stimulated
inhibits vasomotor centre
impulse travels along afferent nerves from baroreceptors to stim the cardio inhibitory centre
sympathetic impulses to heart decrease the heart rate and contractility
while rate of vasomotor impulses allows vasodilation leading to a widening vessel diameter
lowering of CO and R to return blood pressure to homeostatic range
how does the body maintain a “normal” blood pressure in response to lowering bp
on an decrease the arterial blood pressure drops below the normal range
impulses from baroreceptors stimulate cardio acceleratory center
baroreceptors in carotid sinuses and aortic arch inhibited
stimulate vasomotor centre
leads to increase in sympathetic impulses to heart leading to increase in heart rate + contractility
vasomotor fibres stim vasoconstriction
as a result peripheral resistance increase and CO and R return blood pressure to nomral homeostatic range