Brugada syndrome-like ST-segment elevation increase exacerbated by vomiting.
The patient was a 53 year-old male who had 3 syncopal episodes over a 6-month period. In the electrophysiological study, ventricular fibrillation (VF) was repeatedly induced by the ventricular extrastimulus method. Intravenous pilsicainide was administered, and the J-point and ST-segment in the right precordial leads became slightly elevated just following drug administration. Five min later, the patient experienced severe nausea and then vomited twice, at which point the electrocardiogram (ECG) showed increased elevation of the J-point and ST-segment. These ECG changes recovered to normal 30 min later. The cause of his syncope was strongly suspected to be related to the VF associated with Brugada syndrome. An interesting aspect of this case was the particular type of J-point and ST-segment elevation that was induced when the patient experienced nausea and vomiting. It is proposed that this phenomenon originated from the vagal stimulation associated with the nausea and vomiting.
Arai
Mariko
M
Division of Cardiology, Department of Internal Medicine, St Marianna University School of Medicine, Kawasaki, Japan.
Nakazawa
Kiyoshi
K
Takagi
Akihiko
A
Kishi
Ryoji
R
Osada
Keizo
K
Ryu
Syonosuke
S
Miyake
Fumihiko
F
D000109:Acetylcholine / Q000494:pharmacology; D000889:Anti-Arrhythmia Agents / Q000008:administration & dosage / Q000627:therapeutic use*; D003331:Coronary Vessels / Q000187:drug effects / Q000503:physiopathology; D004562:Electrocardiography; D006801:Humans; D007262:Infusions, Intravenous; D008012:Lidocaine / Q000008:administration & dosage / Q000031:analogs & derivatives* / Q000627:therapeutic use; D008297:Male; D008875:Middle Aged; D013577:Syndrome; D014693:Ventricular Fibrillation / Q000503:physiopathology*; D014839:Vomiting / Q000503:physiopathology*
D000889:Anti-Arrhythmia Agents; D008012:Lidocaine; C042288:pilsicainide; D000109:Acetylcholine