The Coronary Vasomotion Disorders International Study Group (COVADIS) was established to develop international standards for the diagnostic
criteria of coronary vasomotor disorders. The first symposium held on the 4–5 September 2013 addressed the criteria for vasospastic angina,
which included the following (i) nitrate-responsive angina, (ii) transient ischaemic electrocardiogram changes, and (iii) documented coronary
artery spasm. Adoption of these diagnostic criteria will improve the clinical diagnosis of this condition and facilitate research in this field
