title: [Intermittent pre-excitation after adenosine administration].
abstract: We describe a case of 2:1 intermittent preexcitation after adenosine administration in a patient with an accessory pathway that did not show preexcitation on the basal ECG. We review the mechanisms involved that explain this event and the possible utility of adenosine to show accessory pathways that do not show preexcitation on the ECG.
authors.affiliation: Sección de Cardiología. Hospital Universitari de Sant Joan. Reus. Departamento de Cardiología.aHospital de la Santa Creu i Sant Pau. Barcelona.
authors.forename: J M
authors.initials: JM
authors.lastname: Alegret
authors.forename: X
authors.initials: X
authors.lastname: Viñolas
authors.forename: O
authors.initials: O
authors.lastname: Palazón
authors.forename: J M
authors.initials: JM
authors.lastname: Vernis
authors.forename: A
authors.initials: A
authors.lastname: Ferrer
authors.forename: R
authors.initials: R
authors.lastname: Oter
mesh_terms: D000241:Adenosine / Q000009:adverse effects*; D000328:Adult; D000889:Anti-Arrhythmia Agents / Q000009:adverse effects*; D004562:Electrocardiography / Q000187:drug effects; D005260:Female; D006801:Humans; D011226:Pre-Excitation Syndromes / Q000139:chemically induced* / Q000503:physiopathology; D013614:Tachycardia, Paroxysmal / Q000150:complications
chemical_list: D000889:Anti-Arrhythmia Agents; D000241:Adenosine