title: [Cardiac resynchronization in narrow QRS and less affected exercise capacity].
abstract: Cardiac resynchronization (CRT) through atrio-biventricular pacemaker therapy is now a well established treatment option for severely symptomatic patients with advanced systolic heart failure (HF) and intraventricular conduction delay, especially left bundle branch block. The purpose of this article is to address possible applications of biventricular pacing beyond the classical CRT indication. In particular, a summary is given of available information on CRT in patients with symptomatic systolic HF, but narrow QRS complex, and those with wide QRS, but less pronounced or even absent clinical HF signs.
authors.affiliation: Medizinische Klinik mit Schwerpunkt Kardiologie, Charité - Universitätsmedizin Berlin, Campus Virchow-Klinikum, Augustenburger Platz 1, 13353, Berlin, Deutschland. martin.stockburger@charite.de
authors.forename: M
authors.initials: M
authors.lastname: Stockburger
mesh_terms: D002037:Bundle-Branch Block / Q000150:complications* / Q000517:prevention & control*; D058406:Cardiac Resynchronization Therapy / Q000639:trends*; D004562:Electrocardiography; D005080:Exercise Test; D006333:Heart Failure / Q000209:etiology* / Q000517:prevention & control*; D006801:Humans