Why the study?
Does dual-chamber (DDD) pacing improve symptoms and exercise capacity compared to single-chamber ventricular demand (VVI) pacing in patients aged over 75 years with complete heart block?
Population
16 patients aged 77-88 years with complete heart block
Comparison
Dual-chamber (DDD) pacing maintained for 7 days vs Single-chamber ventricular demand pacing…
Design
RCT, randomized two-period crossover, double-blind
Follow-up
7 days per pacing mode
Authors
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DDD pacing should be favored over VVI for symptom and exercise benefits in patients over 75 with complete heart block; confirms dual-chamber superiority in this group.
Does dual-chamber (DDD) pacing improve symptoms and exercise capacity compared to single-chamber ventricular demand (VVI) pacing in patients aged over 75 years with complete heart block?
In elderly patients over 75 years with complete heart block, DDD pacing significantly improves symptoms and exercise capacity compared to VVI pacing.
Channon et al. (1994) studied this question.
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