3-Year Follow-Up of Patients With Coronary Artery Spasm as Cause of Acute Coronary Syndrome: The CASPAR (Coronary Artery Spasm in Patients With Acute Coronary Syndrome) Study Follow-Up

Study Questions:

What is the long-term outcome of patients with acute coronary syndrome (ACS) who have no identifiable coronary artery disease on angiography, but have evidence of spasm in response to intracoronary acetylcholine?