Use of non-invasive intracranial pressure pulse waveform to monitor patients with End-Stage Renal Disease (ESRD)

PLoS One. 2021 Jul 22;16(7):e0240570. doi: 10.1371/journal.pone.0240570. eCollection 2021.

Abstract

End-stage renal disease (ESRD) is treated mainly by hemodialysis, however, hemodialysis is associated with frequent complications, some of them involve the increased intracranial pressure. In this context, monitoring the intracranial pressure of these patients may lead to a better understanding of how intracranial pressure morphology varies with hemodialysis. This study aimed to follow-up patients with ESRD by monitoring intracranial pressure before and after hemodialysis sessions using a noninvasive method. We followed-up 42 patients with ESRD in hemodialysis, for six months. Noninvasive intracranial pressure monitoring data were obtained through analysis of intracranial pressure waveform morphology, this information was uploaded to Brain4care® cloud algorithm for analysis. The cloud automatically sends a report containing intracranial pressure parameters. In total, 4881 data points were collected during the six months of follow-up. The intracranial pressure parameters (time to peak and P2/P1 ratio) were significantly higher in predialysis when compared to postdialysis for the three weekly sessions and throughout the follow-up period (p<0.01) data showed general improvement in brain compliance after the hemodialysis session. Furthermore, intracranial pressure parameters were significantly higher in the first weekly hemodialysis session (p<0.05). In conclusion, there were significant differences between pre and postdialysis intracranial pressure in patients with ESRD on hemodialysis. Additionally, the pattern of the intracranial pressure alterations was consistent over time suggesting that hemodialysis can improve time to peak and P2/P1 ratio which may reflect in brain compliance.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Algorithms
  • Cloud Computing
  • Female
  • Follow-Up Studies
  • Humans
  • Intracranial Pressure / physiology*
  • Kidney Failure, Chronic / physiopathology*
  • Male
  • Middle Aged
  • Monitoring, Physiologic / methods*
  • Renal Dialysis

Grants and funding

The Braincare Desenvolvimento e Inovação Tecnológica S.A. provided the equipment free of charge for this study. CR declares Scholarship Funding from CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior – Finance Code 001. This financing did not role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. GHF declares personal fees as employee (Research Coordinator) from Braincare Desenvolvimento e Inovação Tecnológica S.A., during the conduct of the study; In addition, GHF has a patent US9826934B2 issued, and a patent US9993170B1 issued. The funder (Braincare Desenvolvimento e Inovação Tecnológica S.A.) only provided support in the form of salaries for author GHF, but did not have any additional role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript. GHF contributed as a researcher with Conceptualization, Methodology, Software, Visualization, Writing – review & editing, as described in the ‘author contributions’ section. This commercial affiliation does not alter our adherence to PLOS ONE policies on sharing data and materials. NNR declares personal fees as medical consultant from Braincare Desenvolvimento e Inovação Tecnológica S.A., during the conduct of the study. The funder (Braincare Desenvolvimento e Inovação Tecnológica S.A.) only provided support in the form of consultant fee for author NNR, but did not have any additional role in the study design, data collection and analysis, decision to publish, or preparation of the manuscript. NNR contributed as a researcher with Methodology, Visualization, Writing – review & editing, as described in the ‘author contributions’ section. This commercial affiliation does not alter our adherence to PLOS ONE policies on sharing data and materials.