Cardiovascular Flashcards
What is the threshold for hypertension?
140/90 mmHg
What is the target BP for someone with hypertension and diabetes?
130/80 mmHg
What is hypertension a risk for?
Stroke, MI, HF, CKD, AF, hypertensive retinopathy, vascular dementia
How does hypertension cause atherosclerosis?
Thickens media of muscular arteries
What is the threshold for malignant hypertension?
200/130 mmHg
Which renal diseases cause hypertension?
Glomerulonephritis, polycystic kidneys, systemci sclerosis
Which endocrine diseases cause hypertension?
Cushing’s, acromegaly, Conn’s
Which drugs cause hypertension?
Steroids, amphetamines, cocaine
Coarctation of the aorta can cause hypertension. What is a sign of this?
Weak femoral pulse
What Ix’s would you do to diagnose hypertension?
- 24 hour ambulatory BP monitoring
- blood glucose to rule out diabetes
- U&E and urinalysis to exclude renal disease
- Ophthalmoscopy : retinal haemorrhage
- ECG :LV hypertrophy
What lifestyle changes can reduce hypertension?
- Exercise
- Stop smoking
- Low fat diet
- Reduce salt
- Reduce alcohol
If a patient is under 55 years old, which drug do you give them for hypertension?
ACEi or ARB
If a patient is >55 or of Afro-Caribbean origin of any age, which drug would you give them for hypertension?
CCB
After initial treatment of hypertension, you can combine ACE/ARB with CCB. If the BP is still not controlled, what drug would you prescribe?
Thiazide diuretic
What drugs would you prescribe for resistant hypertension?
- Spironolactone if K+ <4/5 mmol/L
- alpha blocker or beta blocker if K+>4.5 mmol/L
How many stages of hypertension are there?
3.
stage 1: 140/90 mmHg
stage 2: 160/100 mmHg
stage 3: 180/120 mmHg
Which test would you do to assess CV disease risk?
Qrisk3.
What does Qrisk3 predict?
Risk of having a heart attack or stroke in next 10 years
Which extra conditions/medications does Qrisk3 ask for compared to Qrisk2?
- Erectile dysfunction
- Migraine
- Severe mental illness
- Anti-psychotic medication
- Steroids
Which non-modifiable factors does Qrisk 3 ask for?
- Age
- Sex
- Ethnicity
- UK postcode
Which conditions do both Qrisk2 and Qrisk 3 ask about?
- Smoking status
- Diabetes
- Angina or heart attack in 1st degree relative <60
- CKD
- AF
- Hypertension
- RA
- BMI
- Cholesterol/HDL ratio
What is the target BP for someone with hypertension <80 years old?
<135/85 mmHg
What is the target BP for someone with hypertension >80 years old?
<145/85 mmHg
Name an ACE inhibitor
Ramipril
Name an ARB
Losartan
Name a CCB
Amlodipine
Name a thiazide diuretic
Indapamide
Name an alpha blocker
Doxazosin
Name a beta blocker
Atenolol
Name symptoms and signs of malignant hypertension
- Retinal haemorrhage
- Papilloedema
- New onset confusion, chest pain
- Signs of AKI
What are the risk factors for atherosclerosis?
- Age
- Smoking
- High serum cholesterol
- Obesity
- Diabetes
- Hypertension
- FH
Which coronary arteries are most likely to develop atherosclerosis?
- Circumflex
- Left anterior descending
- Right coronary
Which cells in the artery are damaged due to plaques?
Endothelial cells
What can atherosclerosis lead to?
- Coronary artery disease
1. Angina
2. MI
3. HF
Which drugs can be used to treat atherosclerosis?
- Statins - inhibits enzymes which make cholesterol
- Clopidogrel - inhibits P2Y12 ADP receptor on platelets
- Aspirin - irreversible inhibitor of platelet cyclo-oxygenase
- Canakinumab injections - inhibit IL-1
Which surgery can be done to treat atherosclerosis?
Stent made out of steel and cobalt chromium
Which conditions does acute coronary syndrome consist of?
- STEMI
- NSTEMI
- Unstable angina
Which chemical is released when myocardial cells die?
Troponin
What are the features of a STEMI on an ECG?
- ST elevation
- New LBBB
- Pathological Q wave
What does a Q wave represent?
Septal depolarisation . This shows on the ECG due to it not being masked by ventricular wall depolarisation, due to the ventricular wall being dead - i.e. from an MI
Which conditions cause a raised troponin?
- MI
- Aortic dissection
- Hypertrophic cardiomyopathy
- Severe anaemia
- Heart failure
- Sepsis
- Stroke
- Renal failure
- Subarachnoid haemorrhage
Name the 2 main types of MI
- Spontaneous - due to plaque rupturing/occlusion of artery
- Secondary to ischaemia
Other types include those instigated by stents and bypass
Name the clinical features of ACS
- Chest pain, radiating to arms, back or jaw
- Pain >15 minutes
- Nausea + vomiting
- Sweating
- Breathlessness
What is the initial management of an MI?
- 12 lead ECG
- Morphine
- Oxygen
- Glyceryl trinitrate
- Aspirin 300mg
- Rapid acting antiplatelet e.g. Ticagrelor
What is ST elevation a sign of in the artery?
Complete occlusion of epicardial coronary artery
What is the gold standard treatment for a STEMI?
PCI: primary percutaneous intervention UP TO 12 hours after onset of pain
(thrombolysis is no longer first line due to significant bleeding risks)
What is a NSTEMI a sign of in the artery?
Partial coronary occlusion