Hypertension Flashcards
What conditions is high blood pressure a risk factor for?
stroke
MI
heart failure
chronic kidney disease
cognitive decline
premature death
Stage 1 hypertension definition
clinic BP >140/90 AND ABPM/HBPM average >135/85
Stage 2 hypertension definition
clinic BP >160/100 AND ABPM/HBPM average >150/95
Stage 3 hypertension definition
clinic BP >180 systolic OR clinic BP >120 diastolic
Describe the white coat effect
a discrepancy of more than 20/10 mmHg between clinic and average daytime ABPM or average HBPM measurements at the time of diagnosis
Risk factors for coronary artery disease (clear link and modifiable, clear link non-modifiable, link less clear modifiable)
clear link and modifiable:
- smoking
- hypertension
- high cholesterol
- diabetes
clear link non-modifiable:
- age
- gender
- family history
- ethnicity
link less clear modifiable:
- obesity
- poor diet
- physical inactivity
- stress
What tool is used to calculate cardiovascular risk?
QRISK2
What organs can be damaged with hypertension? (end organ damage)
eye
brain
kidneys
heart
Retinal changes in hypertension
hard exudates
cotton wool spots
flame haemorrhages
What is the calculation to work out if left ventricular hypertrophy is present?
S wave depth in V1 + tallest R wave height in V5-V6 >35mm
Left ventricular hypertrophy ECG changes
left atrial enlargement
left axis deviation
lateral ST segment depression with T wave flattening or inversion (‘strain pattern’)
List some causes of secondary hypertension
renovascular disease
renal parenchymal disease
coarctation of aorta
primary aldosteronism (Conn’s syndrome)
Cushing’s disease/cortisol secreting adrenal tumour
pheochromocytoma
obstructive sleep apnoea
General measures to lower blood pressure
weight reduction (each kg = 1-2 mmHg lower systolic BP)
dietary salt
alcohol
exercise
smoking
Stage 1 hypertension management
offer lifestyle interventions
younger than 40 = specialist referral
target organ damage, diabetes, renal impairment, CVD, QRISK2>10% = antihypertensive drug treatment
Stage 2 hypertension treatment
antihypertensive drug treatment
offer lifestyle interventions