Why the study?
Does single-lead VDD pacing maintain reliable atrial sensing and AV synchrony during exercise in patients with high degree AV block?
Does single-lead VDD pacing maintain reliable atrial sensing and AV synchrony during exercise in patients with high degree AV block?
Single-lead VDD pacemakers show a progressive lowering of atrial sensing and transient loss of AV synchrony during exercise, highlighting limitations in atrial tracking with floating electrodes.
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Reduced atrial tracking during exercise may limit single-lead VDD use in active patients; leaves open optimal device selection for AV block.
Guyomar et al. (1999) studied this question.
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