A Case of Ventricular Fibrillation in Masked Long-QT Syndrome Coexisting with Coronary Vasospasm.

IF 1.2 4区 医学 Q3 CARDIAC & CARDIOVASCULAR SYSTEMS
Atsumasa Kurozumi, Yoshinari Enomoto, Hisao Hara, Norihiro Kato, Yukio Hiroi
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引用次数: 0

Abstract

Although long-QT syndrome (LQTS) with a normal range QT interval at rest leads to fatal ventricular arrhythmias, it is difficult to diagnose. In this article, we present a rare case of a patient who suffered a cardiac arrest and was recently diagnosed with LQTS and coronary vasospasm. A 62-year-old man with no syncopal episodes had a cardiopulmonary arrest while running. During coronary angiography, vasospasm was induced and we prescribed coronary vasodilators, including calcium channel blockers. An exercise stress test was performed to evaluate the effect of medications and accidentally unveiled exercise-induced QT prolongation. He was diagnosed with LQTS based on diagnostic criteria. Pharmacotherapy and an implantable cardioverter defibrillator were used for his medical management. It is extremely rare for LQTS and coronary vasospasm to coexist. In cases of exercise-induced arrhythmic events, the exercise stress test might be helpful to diagnose underlying disease.

一例被掩盖的长 QT 综合征并发冠状动脉血管痉挛的室颤病例
尽管长QT综合征(LQTS)在静息状态下的QT间期在正常范围内,但它会导致致命的室性心律失常,因此很难诊断。本文介绍了一例罕见的心脏骤停患者,该患者最近被诊断为 LQTS 和冠状动脉血管痉挛。一名没有晕厥发作的 62 岁男子在跑步时心肺骤停。在冠状动脉造影术中,血管痉挛被诱发,我们给他开了冠状动脉血管扩张剂,包括钙通道阻滞剂。我们进行了运动负荷试验,以评估药物的效果,并意外地揭示了运动诱发的 QT 延长。根据诊断标准,他被确诊为 LQTS。他接受了药物治疗和植入式心脏除颤器治疗。LQTS 和冠状动脉血管痉挛并存的情况极为罕见。在运动诱发心律失常的病例中,运动负荷试验可能有助于诊断潜在的疾病。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
International heart journal
International heart journal 医学-心血管系统
CiteScore
2.50
自引率
6.70%
发文量
148
审稿时长
6-12 weeks
期刊介绍: Authors of research articles should disclose at the time of submission any financial arrangement they may have with a company whose product figures prominently in the submitted manuscript or with a company making a competing product. Such information will be held in confidence while the paper is under review and will not influence the editorial decision, but if the article is accepted for publication, the editors will usually discuss with the authors the manner in which such information is to be communicated to the reader.
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