ASN's Mission

To create a world without kidney diseases, the ASN Alliance for Kidney Health elevates care by educating and informing, driving breakthroughs and innovation, and advocating for policies that create transformative changes in kidney medicine throughout the world.

learn more

Contact ASN

1401 H St, NW, Ste 900, Washington, DC 20005

email@asn-online.org

202-640-4660

The Latest on X

Kidney Week

Please note that you are viewing an archived section from 2022 and some content may be unavailable. To unlock all content for 2022, please visit the archives.

Abstract: SA-PO433

Use of Remote Dielectric Sensing (ReDS) in Hemodialysis Patients

Session Information

Category: Dialysis

  • 701 Dialysis: Hemodialysis and Frequent Dialysis

Authors

  • Braga Barbosa, Gessica Sabrine, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil
  • Valle, Eduardo de Oliveira, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil
  • Lima, Carolina Marquez, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil
  • Gorzoni, João Lucas Martins, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil
  • Favarato, Daniela Campostrini, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil
  • Vieira, Ana Teresa Pereira, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil
  • Sobral, Vinicius Vasconcelos, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil
  • Assis, Camila Fernandes, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil
  • Ribeiro, Rayra Gomes, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil
  • Smolentzov, Igor, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil
  • Andrade, Lucia, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil
  • Rodrigues, Camila Eleuterio, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil
  • Vieira Jr., Jose M., Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil
Background

New tools are being developed to assess volume status in fluid overload risk patients. The ReDS system is a non-invasive device built from military technology “see through-walls” indicated to assess hypervolemic status represented by pulmonary congestion. There are studies demonstrating an optimal correlation between ReDS and high-resolution chest tomography and invasive hemodynamic monitoring, mostly in heart failure patients. Our aim is to evaluate the use of ReDS in hemodialysis (HD) population.

Methods

We enrolled 23 patients under three times per week HD treatment. The fluid status was evaluated before and after dialysis by physical examination, lung ultrasound (LUS) and ReDS. The study was performed for four weeks (ReDS device availability period). Clinical parameters include weight and blood pressure. Degree of pulmonary congestion was evaluated according to B lines number visualized by LUS and percentage of fluid in lung tissue from ReDS (value > 35% is associated to hypervolemic status).

Results

The analysis was performed in 41 HD sessions. There is linear correlation between ReDS and LUS especially in cases of severe pulmonary congestion according to LUS degree (r =0,393, Spearman’s test, p < 0.05). There was no difference between blood pressure values and ReDS or LUS results. There was no difference between the assessment before and after HD sessions.

Conclusion

ReDS system is a promising tool that can be used to assess fluid status in hemodialysis patients.

Funding

  • Commercial Support –