The overall goal of the Acetylcholine Test is to assess whether a patient suffers from a coronary vasomotor disorder such as an epicardial or coronary microvascular spasm. The acetylcholine test is helpful for detecting a coronary vasomotor disord
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Intracoronary acetylcholine testing has been established for the assessment of epicardial coronary spasm more than 30 years ago. Recently, the focus has shifted towards the microcirculation and it has been shown that microvascular spasm can be detected using ACH-testing. This article describes the ACH-test and its implementation in daily routine.