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Ventricular fibrillation associated with multi-vessel coronary spasms following radiofrequency ablation of atrial fibrillation and atrial flutter Ryudo Fujiwara*, Akihiro Yoshida, and Ken-ichi Hirata Department of internal medicine, Division of cardiovascular medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan

* Corresponding author. Tel: +078 382 5111; fax: +078 382 5859, Email: [email protected]

A 62-year-old man was admitted for radiofrequency (RF) ablation of symptomatic paroxysmal atrial fibrillation and typical atrial flutter refractory to medical treatment. He had a history of syncope diagnosed as vasospastic angina pectoralis. Upon admission to our hospital for RF ablation, an echocardiogram revealed a structurally normal heart. Sedation was maintained with the intravenous administration of dexmedetomidine hydrochloride during the ablation procedure. All four pulmonary veins were successfully isolated and bidirectional cavotricuspid isthmus block was confirmed. On the way to the medical ward after the procedure, he suffered a cardiopulmonary arrest. Cardiopulmonary resuscitation was started. Ventricular fibrillation was confirmed and terminated with a 300 J shock. Immediately after the cardioversion, the 12-lead electrocardiogram showed sinus tachycardia without any ST elevation, but 10 min later, it revealed ST elevation in Leads I, II, III, aVf, aVL, and V3–6. The intravenous administration of nitrates was started and the ST elevation improved. Urgent coronary angiography was performed and it revealed severe stenosis of the right coronary artery and left circumflex artery. An intracoronary bolus of nitroglycerin induced vasodilation of the coronary artery (Figure). He recovered without any neurological sequelae and received an implantable cardioverterdefibrillator for secondary prevention.

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The full-length version of this report can be viewed at: http://www.escardio.org/communities/EHRA/publications/ep-case-reports/ Documents/ventricular-fibrillation-associated-with-multi-vessel-coronary-spasms.pdf. Published on behalf of the European Society of Cardiology. All rights reserved. & The Author 2014. For permissions please email: [email protected].

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doi:10.1093/europace/eut404 Online publish-ahead-of-print 19 January 2014

EP CASE EXPRESS

Ventricular fibrillation associated with multi-vessel coronary spasms following radiofrequency ablation of atrial fibrillation and atrial flutter.

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