title: [Editorial comment].
authors.affiliation: I Klinika Kardiologii, Katedra Kardiologii, Uniwersytet Medyczny im. Karola Marcinkowskiego, Poznań. mitkowski@op.pl.
authors.forename: Przemysław
authors.initials: P
authors.lastname: Mitkowski
mesh_terms: D020878:Device Removal / Q000379:methods*; D004567:Electrodes, Implanted / Q000009:adverse effects*; D006352:Heart Ventricles / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D010138:Pacemaker, Artificial / Q000009:adverse effects*; D014463:Ultrasonography