Wei Hua
Xin Chen


Congestive heart failure is one of the leading health problems in medicine. Intraventricular conduction delay is associated with contraction abnormalities, prolonged mitral regurgitation and a shortened left ventricular filling time in patients with conduction defects and dilated cardiomyopathy. Biventricular pacing is a promising new strategy for correcting the ventricular activation sequence and potentially improving myocardial function and clinical outcome in patients with congestive heart failure. Uncontrolled and controlled studies have shown that biventricular pacing could help to improve patients by at least one functional class, increases the 6-minute walk distance by 20-40%, and improves quality of life (as assessed by the Minnesota living with heart failure questionnaire) by 20-50%. Left ventricular lead implantation requires more time than implantation of traditional pacemaker leads. New technology and techniques are likely to reduce the time required for implantation in the future.