title: [Atrial fibrillation in the long QT syndrome].
abstract: A case of a 58-year-old woman with occasionally diagnosed persistent atrial fibrillation (AF) is presented. The patient for many years experienced palpitations relived by oral propranolol treatment. After electrical cardioversion of AF to sinus rhythm prolongation of the QTc interval up to 520 ms became evident. Molecular screening of LQTS-related genes revealed the presence of R231S mutation in the KCNQ1 gene.
authors.affiliation: Klinika Kardiologii i Elektroterapii Serca, Gdański Uniwersytet Medyczny, ul. Debinki 7, 80-211 Gdańsk, Poland. agzien@amg.gda.pl
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Zienciuk
authors.forename: Małgorzata
authors.initials: M
authors.lastname: Szwoch
authors.forename: Grzegorz
authors.initials: G
authors.lastname: Raczak
mesh_terms: D001281:Atrial Fibrillation / Q000209:etiology*; D004562:Electrocardiography; D005260:Female; D006801:Humans; D051657:KCNQ1 Potassium Channel / Q000235:genetics; D008133:Long QT Syndrome / Q000150:complications* / Q000175:diagnosis* / Q000235:genetics; D008875:Middle Aged; D009154:Mutation
chemical_list: D051657:KCNQ1 Potassium Channel; C496909:KCNQ1 protein, human