title: Malfunction of cardiac resynchronization therapy due to subsequent fracture of the ring and tip conductors of a co-radial left ventricular bipolar lead.
abstract: In two patients treated with cardiac resynchronization therapy (CRT), left ventricular (LV) pacing failure occurred due to ring conductor fractures of the bipolar LV lead (co-radial model). CRT was resumed by pacing between the tip conductor of the LV lead and the coil conductor of the right ventricular lead. However, shortly thereafter, subsequent fracture of the tip conductor developed, and implantation of a new LV lead was required. When one of the bipolar conductors of a co-radial designed LV lead fractures, reimplantation of a new LV lead is a better therapeutic option (than changing the LV pacing mode) in order to reliably continue CRT treatment.
authors.affiliation: Department of Cardiovascular Biology and Medicine, Niigata University Graduate School of Medical, Dental Sciences, Japan.
authors.forename: Akinori
authors.initials: A
authors.lastname: Sato
authors.forename: Masaomi
authors.initials: M
authors.lastname: Chinushi
authors.forename: Daisuke
authors.initials: D
authors.lastname: Izumi
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Furushima
authors.forename: Tohru
authors.initials: T
authors.lastname: Minamino
mesh_terms: D000368:Aged; D058406:Cardiac Resynchronization Therapy / Q000009:adverse effects*; D058409:Cardiac Resynchronization Therapy Devices / Q000009:adverse effects*; D004567:Electrodes, Implanted / Q000009:adverse effects; D004868:Equipment Failure; D019544:Equipment Failure Analysis / Q000295:instrumentation* / Q000379:methods; D005260:Female; D006333:Heart Failure / Q000000981:diagnostic imaging* / Q000628:therapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D016896:Treatment Outcome