Copyright © 2003 by the European Society of Cardiology.
Editorial
Multi-chamber pacing: a perfect solution for cardiac mechanical dyssynchrony?
a Department of Cardiology, University of Hull, Castle Hill Hospital, Castle Road, Kingston upon Hull HU16 5JQ, UK
b Department of Cardiology, Policlinico S. Matteo, Institute of Care and Research, Pavia, Italy
* Corresponding author. Tel.: +44-1482-624084; fax: +44-1482-624085
E-mail address: j.g.cleland@hull.ac.uk
| The first 150 words of the full text of this article appear below. |
See doi:10.1016/S1095-668X(02)00475-Xfor the article to which this editorial refers.
When the heart fails, it becomes less efficient, as myocardial energy consumption rises without a corresponding increase in cardiac output. There are many possible reasons for this decline in cardiac efficiency (Fig. 1). Recently, because of the potential value of multi-site pacing, interest has focused on mechanical dyssynchrony, which encompasses a complex array of problems that often coexist in varying degrees along with ‘functional’ mitral regurgitation.1–3
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It is likely that mechanical dyssynchrony is common, although precisely how common is unclear, and will depend on the definition and the tools used to measure it. The presence and severity of cardiac dyssynchrony can be assessed directly using imaging techniques or indirectly by measuring time-intervals from a standard 12-lead echocardiography (ECG). ECG
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