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Case Reports
. 2011:2011:624508.
doi: 10.1155/2011/624508. Epub 2011 Aug 22.

Atrioventricular Cross-Talk Leading to Ventricular Pacing Inhibition in a Dual-Chamber ICD

Luuk Debie  1 , Bernard Broers  1 , Jurren van Opstal  1 , Berry M van Gelder  2
Affiliations
Case Reports

Atrioventricular Cross-Talk Leading to Ventricular Pacing Inhibition in a Dual-Chamber ICD

Luuk Debie et al. Case Rep Cardiol. 2011.

Abstract

We report atrio-ventricular cross talk in a patient with a dual chamber ICD leading to ventricular pacing inhibition. This was observed in an ICD without the ventricular safety pace option, which normally is a sufficient protection against this phenomenon. Cross talk could be prevented effectively by reprogramming ventricular sensitivity to a less sensitive setting.

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Figures

Figure 1
Figure 1
Pacing at DDD 65/110 beats per minute. Shown from top to bottom are the lead I, atrial electrogram (A egm), right ventricular electrogram (V egm), and annotations. AP: atrial pacing; AS: atrial sensing; RVP: right ventricular pacing; RVS: right ventricular sensing; LVP: left ventricular pacing. Cross-talk inhibition occurs at the fourth and fifth complex (arrows).
Figure 2
Figure 2
Holter recording showing only atrial pacing spikes without ventricular response resulting in a pause of 7.4 seconds.
Figure 3
Figure 3
Restoration of normal function without cross-talk sensing after reduction of the ventricular sensitivity to the least sensitive setting. Abbreviations are similar to Figure 1.
See this image and copyright information in PMC

References

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