Revision 4 for 'Coronary artery disease'

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Coronary artery disease

Coronary artery disease (CAD) is the leading cause of mortality globally. 

Clinical presentation

CAD is asymptomatic in most of the population. When severe enough it can cause angina, or an acute coronary syndrome including myocardial infarction


CAD is primarily due to atherosclerosis, an inflammatory process that leads to atheroma development and remodelling/stenosis of the coronary arteries. A stenosis of >50% of diameter or >75% cross section diameter reduction can lead to angina. Thrombus formation after plaque disruption can lead to acute coronary syndrome 1,2

Risk factors
  • non-modifiable: family history, age, male sex 1
  • modifiable: hypercholesterolemia, left ventricular hypertrophy, obesity, hypertension, diabetes sedentary lifestyle, smoking, alcohol 1

Radiographic features

There are a variety techniques to image coronary artery disease including both anatomical and functional modalities. Coronary angiography has been the mainstay for many years, but in certain patient groups is being replaced by non-invasive imaging such as coronary CT angiography (cCTA).

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