title: [A case of extreme elongation of the QT interval associated with the breaking of an endocavitary electrode].
authors.forename: A
authors.initials: A
authors.lastname: Tomaszewski
authors.forename: M
authors.initials: M
authors.lastname: Markiewicz
mesh_terms: D001145:Arrhythmias, Cardiac / Q000209:etiology*; D004868:Equipment Failure; D005260:Female; D006327:Heart Block / Q000628:therapy*; D006801:Humans; D008133:Long QT Syndrome / Q000209:etiology*; D008875:Middle Aged; D010138:Pacemaker, Artificial / Q000009:adverse effects*
vernacular_title: Przypadek ekstremalnego wydłuzenia odstepu QT towarzyszacego złamaniu elektrody endokawitarnej.