Ventricular Fibrillation in Patient with Multi-vessel Coronary Spasm Four Days after the Initiation of Oral Beta-blocker

Ventricular Fibrillation in Patient with Multi-vessel Coronary Spasm Four Days after the Initiation of Oral Beta-blocker

We describe a case of ventricular fibrillation occurring in a patient with multi-vessel coronary spasm after the initiation of an oral beta-blocker. A 56-year-old man began to experience chest discomfort and his computed tomography revealed intermediate coronary stenoses. He was administered medicat...

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Bibliographic Details
Main Authors: Manabu Kurabayashi, Hidetoshi Suzuki, Tsukasa Shimura, Yasuteru Yamauchi, Kaoru Okishige
Format: Article
Language:English
Published: SMC MEDIA SRL 2016-07-01
Series:European Journal of Case Reports in Internal Medicine
Subjects:
Coronary spasm, ventricular fibrillation, beta-blocker, acetylcholine provocation test.
Online Access:http://ejcrim.com/index.php/EJCRIM/article/view/439
Description
Summary:We describe a case of ventricular fibrillation occurring in a patient with multi-vessel coronary spasm after the initiation of an oral beta-blocker. A 56-year-old man began to experience chest discomfort and his computed tomography revealed intermediate coronary stenoses. He was administered medications including an oral beta-blocker but suddenly collapsed while walking 4 days later. An automated external defibrillator detected ventricular fibrillation and delivered successful electrical cardioversion. An acetylcholine provocation test after stabilization of the status revealed triple-vessel coronary spasm. Beta-blockers may provoke exacerbation of coronary spasm and result in lethal arrhythmia.
ISSN:2284-2594

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