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editorial

. 2018 Nov 26;10(11):201–209. doi: 10.4330/wjc.v10.i11.201

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©The Author(s) 2018. Published by Baishideng Publishing Group Inc. All rights reserved.

This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial.

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A representative case with coronary spasm and coronary stenosis. The patient, who had chest symptoms for 20 min at rest, accompanied with cold sweating, was admitted to our institution for the evaluation of his chest symptoms. A: Coronary angiography showed coronary stenosis at the distal segment of the left circumflex coronary artery, which cannot be considered as the cause of his chest symptoms; B: The spasm provocation test using 100 µg of acetylcholine showed diffuse coronary spasm throughout the left anterior descending coronary artery, accompanied with usual chest pain, which had been restored after nitroglycerin injection. Coronary stenosis and spastic segments were indicated by bold arrow and plain arrows, respectively.