title: Ischemia-induced prominent J waves in a patient with Brugada syndrome.
abstract: A 75-year-old man was admitted to our hospital in January 2010 for evaluation of syncope and abnormal ECG. ECG showed type 1 ST elevation in lead V(1) and he was diagnosed as Brugada syndrome. During cardiac catheterization, baseline coronary angiography was normal, but intracoronary ergonovine maleate induced spasms of the right and left coronary arteries concomitant with chest pain and ST elevation on ECG. J waves were accentuated or newly developed. Soon after an intracoronary injection of nitroglycerin, chest pain was relieved and ischemia-induced J wave disappeared and the ST segment returned to the same morphology as baseline. Extrastimuli induced ventricular fibrillation. He received an implantable cardioverter-defibrillator. He was also treated with Ca antagonist and isosorbide dinitrate and has had an uneventful course for 5 months.
authors.affiliation: Division of Cardiology, Niigata University Graduate School of Medical and Dental Science, Niigata.
authors.forename: Nobue
authors.initials: N
authors.lastname: Yagihara
authors.forename: Akinori
authors.initials: A
authors.lastname: Sato
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Furushima
authors.forename: Masaomi
authors.initials: M
authors.lastname: Chinushi
authors.forename: Takashi
authors.initials: T
authors.lastname: Hirono
authors.forename: Yoshifusa
authors.initials: Y
authors.lastname: Aizawa
mesh_terms: D000368:Aged; D053840:Brugada Syndrome / Q000150:complications* / Q000175:diagnosis* / Q000503:physiopathology; D004562:Electrocardiography; D006801:Humans; D008297:Male; D017202:Myocardial Ischemia / Q000150:complications* / Q000175:diagnosis* / Q000503:physiopathology