Why the study?
Does dual-chamber pacing improve quality of life and clinical outcomes in elderly patients compared with ventricular pacing?
Does dual-chamber pacing improve quality of life and clinical outcomes in elderly patients compared with ventricular pacing?
Dual-chamber pacing provides quality-of-life benefits over ventricular pacing primarily in patients with sinus-node dysfunction.
May guide selective dual-chamber pacing in sinus-node dysfunction; leaves open broader use in other indications.
The implantation of a permanent pacemaker improves health-related quality of life. However, the quality-of-life benefits associated with dual-chamber pacing as compared with ventricular pacing are observed principally in the subgroup of patients with sinus-node dysfunction.
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Lamas et al. (1998) studied this question.
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