Evaluation of remote dielectric sensing (ReDS) technology-guided thearpy for decreasing heart failure rehospitlaizations

O Amir, T Ben-Gal, JM Weinstein, J Schliamser, D Burkhoff, A Abbo and WT Abraham
Int J Cardiol 2017

Objective: We tested whether remote dielectric sensing (ReDS)-directed fluid management reduces readmissions in patients recently hospitalized for heart failure (HF).
Background: Pulmonary congestion is the most common cause of worsening heart failure (HF) leading to hospitalization. Accurate remote monitoring of lung fluid volume may guide optimal treatment and prevent re-hospitalization. ReDS technology is a quantitative non-invasive method for measuring absolute lung fluid volume.
Methods: Patients hospitalized for acute decompensated HF were enrolled during their index admission and followed at home for 90 days post-discharge. Daily ReDS readings were obtained using a wearable vest, and were used as a guide to optimizing HF therapy, with a goal of maintaining normal lung fluid content. Comparisons of the number of HF hospitalizations during ReDS-guided HF therapy were made, both to the 90 days prior to enrollment and to the 90 days following discontinuation of ReDS monitoring.
Results: Fifty patients were enrolled, discharged, and followed at home for 76.9±26.2 days. Patients were 73.8±10.3 years old, 40% had LVEF above 40%, and 38% were women. Compared to the pre- and post-ReDS periods, there were 87% and 79% reductions in the rate of HF hospitalizations, respectively, during ReDS-guided HF therapy. The hazard ratio between the ReDS and the pre-ReDS period was 0.07 (95% CI [0.01-0.54] p=0.01), and between the ReDS and the post-ReDS period was 0.11 (95% CI [0.014-0.88] p=0.037).
Conclusions: These findings suggest that ReDS-guided management has the potential to reduce HF readmissions in acute decompensated HF patients recently discharged from the hospital.

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