title: [Focal atrial tachycardia originating in the right atrial appendage].
abstract: We present a case of 14-year-old boy with incessant atrial tachycardia from right atrial appendage, resistant to pharmacotherapy and with early signs of the left ventricle tachyarrhythmic dysfunction. The P-wave was positive in leads I, II, III, aVF, negative in aVR, aVL. Moreover, P waves configuration specific for this localization: negative in V1-V2 that become positive in V3-V6 was present. After first ablation session a recurrence was observed after 3 weeks, due to inadequate power delivery resulting from trabeculation/anatomy that limited conventional ablation catheter cooling. Second ablation session with the use of an active electrode cooling and 3D mapping system was successful.
authors.affiliation: I Klinika Kardiologii i Nadciśnienia Tetniczego, Szpital Uniwersytecki, ul. Kopernika 17, 31-501 Kraków, Poland. mcjastrz@cyf-kr.edu.pl
authors.forename: Marek
authors.initials: M
authors.lastname: Jastrzebski
authors.forename: Bogumiła
authors.initials: B
authors.lastname: Bacior
authors.forename: Maciej
authors.initials: M
authors.lastname: Pitak
authors.forename: Beata
authors.initials: B
authors.lastname: Załuska-Pitak
authors.forename: Andrzej
authors.initials: A
authors.lastname: Rudziński
authors.forename: Danuta
authors.initials: D
authors.lastname: Czarnecka
mesh_terms: D000293:Adolescent; D020517:Atrial Appendage / Q000601:surgery*; D018780:Body Surface Potential Mapping; D017115:Catheter Ablation; D004351:Drug Resistance; D004452:Echocardiography; D004562:Electrocardiography; D006801:Humans; D008297:Male; D012008:Recurrence; D012086:Reoperation; D013612:Tachycardia, Ectopic Atrial / Q000150:complications / Q000175:diagnosis* / Q000601:surgery*; D018487:Ventricular Dysfunction, Left / Q000175:diagnosis / Q000209:etiology