title: [Atypical behavior of QTc and ST-T intervals in a patient with the Brugada syndrome].
abstract: 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.
authors.affiliation: División Cardiología, Hospital Ramos Mejía, Buenos Aires, Argentina. racunzo@hotmail.com
authors.forename: Rafael S
authors.initials: RS
authors.lastname: Acunzo
authors.forename: Isabel V
authors.initials: IV
authors.lastname: Konopka
authors.forename: Rubén A
authors.initials: RA
authors.lastname: Sánchez
authors.forename: Norma
authors.initials: N
authors.lastname: Pizzarelli
authors.forename: Juan
authors.initials: J
authors.lastname: Guerra
authors.forename: Marcelo V
authors.initials: MV
authors.lastname: Elizari
mesh_terms: 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
chemical_list: D000889:Anti-Arrhythmia Agents; D000404:Ajmaline