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. 2014 Jan 27:8:27.
doi: 10.1186/1752-1947-8-27.

Heart failure monitoring with a cardiac resynchronization therapy device-based cardiac contractility sensor: a case series

Jacques Mansourati  1 , Mélanie Heurteau, Jérôme Abaléa
Affiliations

Heart failure monitoring with a cardiac resynchronization therapy device-based cardiac contractility sensor: a case series

Jacques Mansourati et al. J Med Case Rep. .

Abstract

Introduction: The SonR signal has been shown to reflect cardiac contractility. It is recorded with an atrial lead connected to a cardiac resynchronization therapy defibrillator. For the first time, clinical evidence on the use of the SonR signal in the monitoring of the clinical status of heart failure patients implanted with cardiac resynchronization therapy defibrillator are presented through three clinical cases.

Case presentation: In the two first patients (non-Hispanic/Latino white), the SonR amplitude increases concomitantly to clinical status improvement subsequent to cardiac resynchronization therapy defibrillator implantation. In the third patient (non-Hispanic/Latino white), a decrease in SonR amplitude is observed concomitantly to atrial fibrillation and clinical status deterioration.

Conclusions: This case series reports the association between SonR signal amplitude changes and patients' clinical status. Combined with remote monitoring, early SonR signal amplitude remote monitoring could be a promising tool for heart failure patients' management.

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Figures

Figure 1
Figure 1
Case no. 1 - SonR signal amplitude with early improvement after cardiac resynchronization therapy defibrillator device implantation.
Figure 2
Figure 2
Case no. 2 - SonR signal amplitude evolution before and after cardiac resynchronization therapy defibrillator pacing.
Figure 3
Figure 3
Case no. 3 - SonR signal amplitude evolution in the presence of atrial fibrillation and partial loss of biventricular capture.
See this image and copyright information in PMC

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