Guidelines for diagnosis and treatment of patients with vasospastic angina (Coronary Spastic Angina) (JCS 2013).

lines for Diagnosis and Treatment of Patients with Vasospastic Angina (Coronary Spastic Angina)” in 20085 and a digest version of the guidelines in English in 2010.6 In 2012, the JCS decided to revise the guidelines to reflect the findings obtained since the publication of the first version. The first guidelines were prepared by the Joint Working Groups consisting of members recommended by six academic societies, i.e., the JCS, the Japanese Coronary Association, the Japanese Association for Thoracic Surgery, the Japanese Association of Cardiovascular Intervention and Therapeutics, the Japanese College of Cardiology, and the Japanese Society for Cardiovascular Surgery. In the preparation of the revised version, some members were changed and new members from the Japanese Association of Cardioangioscopy participated in the Joint Working Groups. In April 2012, the Joint Working Groups, consisting of 21 members and 15 collaborators who have been at the forefront of research and clinical practice for the diagnosis and treat