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La conducción se produce exclusivamente sobre la VL (PRE más corto) (AH: 298 ms) para iniciar una TRNAV típica más lenta (la VR retrógrada se adelanta a la VAcc). CS: seno coronario; ds: dis tal; HRA: aurícula derecha alta; md: medio; px: proximal; RB: rama derecha; RV: ventrículo derecho. SAMPLE Bardy GH, Packer DL, German LD, Gallagher JJ. Preexcited reciprocating tachycardia in patients with Wolff-Parkinson-White syndrome: incidence and mechanisms. Circulation 1984;70:377–391. 2. Colavita PG, Packer DL, Pressley JC, et al. Frequency, diagnosis and clinical characteristics of patients with multiple accessory atrioventricular pathways. Am J Cardiol 1987;59:601–606. 3. Wellens HJ, Atié J, Smeets JL, Cruz FE, Gorgels AP, Brugada P. The electrocar diogram in patients with multiple accessory atrioventricular pathways. J Am Coll Cardiol 1990;16:745–751. 4. Akiyama T. Electrocardiographic clues for multiple accessory pathways in patients with pre-excitation syndromes. 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