What ekg abnormalities suggest brugada syndrome?

Lead V2: Elevation of the j point in v2 - with elevated st segement and abnormal configuration. For more detail, see: http://en.Ecgpedia.Org/wiki/brugada_syndrome.

Googleimage it!: Dont know why you are thinking of this diagnosis but there telltale changes with a downsloping wave in between the qrs (the ventricular activation wave) and the t wave (the ventricular recovery wave). You can find examples of most anything on googleimage.