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Case Reports
. 2023 Mar 11;9(6):363-366.
doi: 10.1016/j.hrcr.2023.03.001. eCollection 2023 Jun.

A case of leadless-to-leadless pacemaker interaction

Marissa Frazer  1 , Francis Phan  1 , Khidir Dalouk  1   2 , Ignatius G Zarraga  1   2 , Merritt Raitt  1   2 , Peter M Jessel  1   2
Affiliations
Case Reports

A case of leadless-to-leadless pacemaker interaction

Marissa Frazer et al. HeartRhythm Case Rep. .
No abstract available

Keywords: Device-to-device interaction; Leadless pacemaker; Leadless pacemaker retrieval; Pacemaker complication; Pacemaker noise.

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Figures

Figure 1
Figure 1
Electrocardiogram taken on readmission demonstrating sinus rhythm with intermittent high grade atrioventricular block with a ventricular escape and the presence of pacing spikes that are not followed by QRS complexes, consistent with ventricular noncapture (asterisk). Intermittent loss of atrial tracking is also observed (arrows).
Figure 2
Figure 2
Original Micra (Medtronic Inc, Minneapolis, MN) device (1) and replacement Micra (2). A: Right anterior oblique fluoroscopic view demonstrating the proximity of the original and replacement Micra devices. B: Adjacent device positioning demonstrated in a left anterior oblique fluoroscopic view. C: Fluoroscopic image depicting the successful snaring of the retrieval knob on the original Micra device using a 25mm Gooseneck snare, Mach-1 multipurpose catheter, and medium-curve Agilis sheath.
Figure 3
Figure 3
A comparable interference pattern (asterisk) on intracardiac electrogram obtained from a similar case (as tracings from this case could not be retrieved). Note the V paced events with sharp deflections consistently ∼200 ms following QRS complexes and 2 nonphysiologic V oversensing events at the beginning of the tracing from device–device interference.
See this image and copyright information in PMC

References

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    1. El-Chami M.F., Al-Samadi F., Clementy N., et al. Updated performance of the Micra transcatheter pacemaker in the real-world setting: a comparison to the investigational study and a transvenous historical control. Heart Rhythm. 2018;15:1800–1807. - PubMed
    1. El-Chami M.F., Bockstedt L., Longacre C., et al. Leadless vs. transvenous single-chamber ventricular pacing in the Micra CED study: 2-year follow-up. Eur Heart J. 2021;43:1207–1215. - PMC - PubMed

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