Angina pectoris and ACS Flashcards
What are the 3 features of anginal pain?
Constricting/heavy discomfort
Brought upon by exertion
Relieved by rest/GTN within 5 minutes
What is the first line investigation for suspected stable angina?
Contrast enhanced CT angiography (NB also done if pain is non-anginal but ECG shows ischaemic change)
What is the second line investigation for suspected stable angina?
Functional imaging e.g. stress echocardiogram or exercise ECG
What is the third line investigation for suspected stable angina?
Invasive coronary angiography
What time of the day should statins be taken?
Last thing in the evening
What are the side effects of statins?
Myalgia/myopathy
Liver impairment
Possibly increased risk of intracerebral haemorrhage in patients who have previously had a stroke
How do you check for liver impairment due to statins?
Check LFTs at baseline, after 3 months and after 12 months
Discontinue if transaminases rise and persist at 3x upper limit
Give 3 contraindications of statins
Current use of macrolide antibiotics
Pregnancy, breastfeeding or 3 months before becoming pregnant
Previous intracerebral haemorrhage
Give 4 side effects of nitrates
Hypotension
tachycardia
Headaches
Flushing
Give 2 contraindications of nitrates
Aortic stenosis
Hypotension
What is the first line anti-anginal medication for stable angina?
Either a beta blocker or CCB
Give 2 indications for PCI/CABG in stable angina
Symptoms not satisfactorily controlled with optimal medical treatment
May gain survival benefit from surgery
What ECG change suggests left main stem infarction?
ST elevation in aVR
What are De Winter T waves?
In V1-4/5, upsloping ST depression followed by tall tented T waves (acute LAD occlusion)
What is Wellen’s syndrome?
Ischaemic chest pain history plus biphasic or inverted T waves in V2-3 (critical LAD stenosis)