Angina Flashcards
What is angina
Common presentation of ischaemic heart disease with fixed stenosis of heart itself
What are the 2 types of angina
Stable - attacks have triggers stop after a few minutes of rest
Unstable - unpredictable attacks which do not always stop with rest = serious
What is the aetiology of angina
atherosclerosis in vessels
- leads to lack of blood supply to heart
Pathophysiology of angina
Narrowing of coronary arteries leads to less blood flow to myocardium
During time in demand e.g. exercise, there is insufficient blood supply causing symptoms
Symptoms and Signs of angina
Chest discomfort centrally/left-sided
Described as crushing/tightness
Pain can radiate to jaw
+/- SOB
Usually result of exertion relived by rest
Investigations
Angina diagnosed clinically
Other tests look for coronary disease as the cause e.g.
ECG
CT coronary angiograph
exercise tolerance test
Myocardial perfusion scan
Catheter angiography
Lifestyle management of angina
Smoking cessation
Limit alcohol intake
Diet & exercise advise
BMI should be 25 or less
Pharmacological management of angina
Symptomatic relief= GTN spray
Long term relief (2nd line)=
Long acting nitrate (isosorbide mononitrate)
Nicorandil = K+ channel activator
Ivabradine
Ranolazine
What are the secondary prevention drugs used in angina
- ACE inhibitor
- Aspirin
- Atorvastatin
Surgical Intervention of angina
coronary artery bypass graft (CABG) for very severe stenosis
Percutaneous Coronary Intervention (PCI) with coronary angioplasty is offered to patients with ‘proximal or extensive disease’on CTCA