title: Multisite left ventricular pacing in cardiac resynchronization therapy.
abstract: Cardiac resynchronization therapy is an effective treatment for selected patients with heart failure and left bundle branch block dyssynchrony. Unfortunately, about a third of patients, so-called nonresponders, do not display any symptomatic or structural improvements after the treatment. In another 5% of patients, the left ventricular lead cannot be implanted due to technical limitations. Novel quadripolar pacing lead and associated multisite pacing technology has the potential to help improve both of these problems. The technology and applications of these leads are reviewed and the novel technique of multisite pacing from two poles of one quadripolar lead is discussed. This technology may improve response to cardiac resynchronization therapy for some patients.
authors.affiliation: Oxford Heart Centre, John Radcliffe Hospital, Oxford University Hospitals NHS Trust, Oxford, OX3 9DU, UK.
authors.forename: James H P
authors.initials: JH
authors.lastname: Gamble
authors.forename: Tim R
authors.initials: TR
authors.lastname: Betts
mesh_terms: D002037:Bundle-Branch Block / Q000150:complications / Q000628:therapy*; D058406:Cardiac Resynchronization Therapy; D058409:Cardiac Resynchronization Therapy Devices; D004567:Electrodes, Implanted; D006333:Heart Failure / Q000150:complications / Q000628:therapy*; D006801:Humans
keywords: cardiac resynchronization therapy; multisite left ventricular pacing; multisite pacing; quadripolar pacing leads