The Importance of Lead Positioning to Improve Clinical Outcomes in Cardiac Resynchronization Therapy

Abstract

Left ventricular (LV) lead positioning is one of the main contributors to the cardiac resynchronization therapy (CRT) response. Conventional left ventricular (LV) lead implantation faces several difficulties, which may ultimately affect lead stability and performance. Several imaging techniques have been proposed to overcome all these obstacles including multimodality cardiac imaging to help in preprocedural or intraprocedural identification of the latest activated areas of the LV. Emerging pacing strategies like LV multisite and multipoint pacing may help deliver an enhanced response to CRT, but prospective trials are warranted to confirm the superiority of this approach.