Physiologic pacing in the elderly. Effects on exercise capacity and exercise-induced arrhythmias.
Why the study?
Does DDD pacing improve exercise capacity and reduce exercise-induced arrhythmias compared to VVI pacing in elderly patients with complete heart block?
Population
18 elderly patients with complete heart block without clinical evidence of sinus node dysfunction.
Comparison
Dual-chamber pacing during exercise testing vs Ventricular pacing during exercise testing
Design
RCT, Randomized testing order for DDD and VVI modes
Follow-up
mean 13 months
Authors
Discussion
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Member takes
Implication
Supports DDD over VVI pacing to enhance exercise capacity in complete heart block; extends RCT evidence favoring dual-chamber modes in the elderly.
Structured PICO
Does DDD pacing improve exercise capacity and reduce exercise-induced arrhythmias compared to VVI pacing in elderly patients with complete heart block?
P
Population
18 elderly patients (mean age 74 +/- 4 yrs) with complete heart block without clinical evidence of sinus node dysfunction.
I
Intervention
Dual-chamber pacing (DDD mode) during exercise testing
C
Comparator
Ventricular pacing (VVI mode) during exercise testing
O
Outcome
Exercise capacity, atrial rate, and exercise-induced arrhythmiassurrogate
Dual-chamber (DDD) pacing improves exercise capacity and lowers atrial rate during exercise compared to VVI pacing in elderly patients with complete heart block.
Cite This Study
Jordaens et al. (1988) studied this question.