Classification of coronary microvascular dysfunction
| Coronary microvascular dysfunction (CMD) | |
| Type 1 | Primary CMD in the absence of underlying myocardial disease or obstructive epicardial CAD |
| Type 2 | CMD in the presence of myocardial disease (eg, hypertrophic cardiomyopathy, hypertensive heart disease) |
| Type 3 | CMD in the presence of obstructive CAD (either stable CAD or acute coronary syndrome) |
| Type 4 | Iatrogenic CMD secondary to myocardial revascularisation |
| Type 5 | CMD following cardiac transplantation |
CAD, coronary artery disease.