J wave and ST segment elevation in the inferior leads: a latent type of variant Brugada syndrome?
In a patient referred for the evaluation of non-sustained monomorphic ventricular tachycardia on Holter recordings, ventricular fibrillation was electrically induced during electrophysiologic study. Despite the absence of structural heart diseases, his ECG revealed J wave and ST segment elevation in the inferior leads, which showed circadian variation and were augmented by the sodium channel blocker, pilsicainide. This case might lead us to notice a new concept, a 'latent' type of variant Brugada syndrome, and these ECG findings and changes might serve as its diagnostic sign.
Sahara
Makoto
M
The Cardiovascular Institute Hospital, Tokyo, Japan.
Sagara
Kouichi
K
Yamashita
Takeshi
T
Abe
Tsuyoshi
T
Kirigaya
Hajime
H
Nakada
Misao
M
Iinuma
Hiroyuki
H
Fu
Long-Tai
LT
Watanabe
Hiroshi
H
D000328:Adult; D002037:Bundle-Branch Block / Q000175:diagnosis*; D003937:Diagnosis, Differential; D004562:Electrocardiography; D006801:Humans; D008012:Lidocaine / Q000031:analogs & derivatives / Q000494:pharmacology; D008297:Male; D026941:Sodium Channel Blockers / Q000494:pharmacology; D013577:Syndrome; D017180:Tachycardia, Ventricular / Q000175:diagnosis*; D014693:Ventricular Fibrillation / Q000175:diagnosis
D026941:Sodium Channel Blockers; D008012:Lidocaine; C042288:pilsicainide