Not Enough QRS Shortening? Keep Calm and Add Another Lead
Jesús Jiménez-López*, Ermengol Vallès, Oscar Alcalde, Begoña Benito, Sandra Cabrera and Julio Martí-Almor
Department of Medicine, Electrophysiology Unit, Cardiovascular Division, Hospital del Mar, Universitat Autònoma de Barcelona, Barcelona, Spain
- *Corresponding Author:
- Jesús Jiménez-López
Department of Medicine
Hospital del Mar
Universitat Autònoma de Barcelona
E-mail: [email protected]
Received April 03, 2016; Accepted May 12, 2016; Published May 17, 2016
Citation: Jiménez-López J, Vallès E, Alcalde O, Benito B, Cabrera S, et al. (2016) Not Enough QRS Shortening? Keep Calm and Add Another Lead. J Clin Case Rep 6:789. doi:10.4172/2165-7920.1000789
Copyright: © 2016 Jiménez-López J, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Cardiac resynchronization therapy (CRT) diminishes symptoms and reduces hospitalization and mortality in patients with heart failure, LV dysfunction and left bundle branch block. However, up to one third of patients do not respond to CRT. In that regard, few initial studies presenting multisite pacing have shown encouraging results, demonstrating both feasibility and safety in placing a second CS lead in >80% of patients intended, with further QRS shortening, which is the most powerful predictor of LV reverse remodelling.