Key result
Atrial undersensing >10% in patients with single lead VDD pacing significantly decreased exercise duration (228 vs 257 seconds) and quality-of-life compared to undersensing <5%.
Why the study?
Does >10% atrial undersensing reduce exercise duration and quality of life in patients with single lead VDD pacemakers?
RCT (n=21)
double blind
randomized crossover
Does >10% atrial undersensing reduce exercise duration and quality of life in patients with single lead VDD pacemakers?
Absolute Event Rate: 228% vs 257%
Atrial undersensing >10% in single lead VDD pacing impairs exercise capacity and quality of life, whereas <10% undersensing is clinically well-tolerated.
No takes yet. Share an insight, caveat, or question.
Undersensing >10% may impair exercise capacity in VDD patients; leaves open whether sensing optimization improves outcomes in larger trials.
CAMPEN et al. (2001) conducted an RCT in total AV block (n=21). Atrial undersensing > 10% vs. Atrial undersensing < 5% and 5%-10% was evaluated on Exercise duration. Atrial undersensing >10% in patients with single lead VDD pacing significantly decreased exercise duration (228 vs 257 seconds) and quality-of-life compared to undersensing <5%.
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