title: [Innovation in the determination of the epicardial potentials].
mesh_terms: D000200:Action Potentials; D004566:Electrodes; D006321:Heart / Q000503:physiopathology*; D006801:Humans; D007432:Intraoperative Period; D008297:Male; D008838:Microcomputers; D008875:Middle Aged; D014927:Wolff-Parkinson-White Syndrome / Q000175:diagnosis*