title: [Atrio-ventricular block in the presence of double-chamber ICD--how is that possible?].
abstract: We present description of ECG by Holter monitoring in a 26-year-old patient with double-chamber implantable cardioverter-defibrillator (ICD). Fragments of record show atrio-ventricular block, which may suggests ICD dysfunction. However, this is working mode of ICD having minimal ventricular pacing algorhythm.
authors.affiliation: Oddział Kliniczny Elektrokardiologii, Krakowski Szpital Specjalistyczny im. Jana Pawła II, Kraków. andrzej_j_z@poczta.onet.pl.
authors.forename: Andrzej
authors.initials: A
authors.lastname: Ząbek
authors.forename: Jacek
authors.initials: J
authors.lastname: Lelakowski
authors.forename: Jacek
authors.initials: J
authors.lastname: Łach
authors.forename: Barbara
authors.initials: B
authors.lastname: Małecka
mesh_terms: D000328:Adult; D054537:Atrioventricular Block / Q000175:diagnosis* / Q000209:etiology*; D002304:Cardiac Pacing, Artificial; D017147:Defibrillators, Implantable; D015716:Electrocardiography, Ambulatory; D019544:Equipment Failure Analysis; D006801:Humans; D008297:Male