Kidney Week

Abstract: SA-PO433

Use of Remote Dielectric Sensing (ReDS) in Hemodialysis Patients

Session Information

• Hemodialysis and Frequent Dialysis: Clearance, Technology, Infection
  November 05, 2022 | Location: Exhibit Hall, Orange County Convention Center‚ West Building
  Abstract Time: 10:00 AM - 12:00 PM

Category: Dialysis

• 701 Dialysis: Hemodialysis and Frequent Dialysis

Authors

• Braga Barbosa, Gessica Sabrine, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil

Gessica Sabrine Braga Barbosa,

• Valle, Eduardo de Oliveira, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil

Eduardo de Oliveira Valle,

• Lima, Carolina Marquez, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil

Carolina Marquez Lima,

• Gorzoni, João Lucas Martins, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil

João Lucas Martins Gorzoni,

• Favarato, Daniela Campostrini, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil

Daniela Campostrini Favarato,

• Vieira, Ana Teresa Pereira, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil

Ana Teresa Pereira Vieira,

• Sobral, Vinicius Vasconcelos, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil

Vinicius Vasconcelos Sobral,

• Assis, Camila Fernandes, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil

Camila Fernandes Assis,

• Ribeiro, Rayra Gomes, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil

Rayra Gomes Ribeiro,

• Smolentzov, Igor, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil

Igor Smolentzov,

• Andrade, Lucia, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil

Lucia Andrade,

• Rodrigues, Camila Eleuterio, Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil

Camila Eleuterio Rodrigues,

• Vieira Jr., Jose M., Universidade de Sao Paulo, Sao Paulo, São Paulo, Brazil

Jose M. Vieira Jr.,

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 – https://www.bragenix.com.br/