[Atypical behavior of QTc and ST-T intervals in a patient with the Brugada syndrome].
We present a 56-year-old man who was admitted to an emergency service after receiving an electric shock. The ECG showed a J point and ST segment elevation of up to 5 mm in leads V1 to V3, which normalized in 24 hours. The ajmaline test caused elevation of the J point and of the ST segment up to 12 mm in leads V1 to V3, QTc lengthening, and QTc and T wave alternans. These results denoted alterations in the duration of myocardial action potentials, a common finding in patients with Brugada syndrome and long QT syndrome.
Acunzo
Rafael S
RS
División Cardiología, Hospital Ramos Mejía, Buenos Aires, Argentina. racunzo@hotmail.com
Konopka
Isabel V
IV
Sánchez
Rubén A
RA
Pizzarelli
Norma
N
Guerra
Juan
J
Elizari
Marcelo V
MV
D000404:Ajmaline; D000889:Anti-Arrhythmia Agents / Q000627:therapeutic use; D004556:Electric Injuries / Q000150:complications; D004562:Electrocardiography; D006801:Humans; D008133:Long QT Syndrome / Q000175:diagnosis* / Q000188:drug therapy / Q000209:etiology; D008297:Male; D008875:Middle Aged; D013577:Syndrome
D000889:Anti-Arrhythmia Agents; D000404:Ajmaline