Albert N. Nayeri, MD, Behzad B. Pavri, MD HeartRhythm Case Reports

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Presentation transcript:

Abrupt increase in impedance measurements as detected via remote monitoring: What is the cause? Albert N. Nayeri, MD, Behzad B. Pavri, MD HeartRhythm Case Reports Volume 1, Issue 2, Pages 51-53 (March 2015) DOI: 10.1016/j.hrcr.2014.12.001 Copyright © 2015 Heart Rhythm Society Terms and Conditions

Figure 1 Detailed information from remote monitoring. Note that there is a missing data point on January 30 on all graphs, likely owing to nonproximity to the cellular transmitter (see text for details). This missing value is responsible for the appearance of a “gradual” increase in impedance values from January 29 to January 31 because the individual daily data points are simply connected by a straight line. bpm = beats/min; RV = right ventricular. HeartRhythm Case Reports 2015 1, 51-53DOI: (10.1016/j.hrcr.2014.12.001) Copyright © 2015 Heart Rhythm Society Terms and Conditions

Figure 2 Device trends obtained at postmortem interrogation indicate near-simultaneous changes in pacing and shocking impedance measurements, heart rate and percentage of RV pacing, and patient activity and sensed P and R waves (see text for details). The terminal increase in the activity graph corresponds to the transportation of the patient’s body to the morgue after demise. RV = right ventricular. HeartRhythm Case Reports 2015 1, 51-53DOI: (10.1016/j.hrcr.2014.12.001) Copyright © 2015 Heart Rhythm Society Terms and Conditions