Intradialytic Hypotension Clinical Trial
Official title:
Use of Pulse Oximeter Derived Photo-plethysmographic Waveform to Guide Ultrafiltration in Hemodialysis Patients to Achieve Euvolemia While Minimizing Intra-dialytic Hypotension
The purpose of this study is to use the photo-plethysmographic [PPG] waveform signal to
guide the dialysis and ultrafiltration [UF] of chronic maintenance hemodialysis patients,
and to further the investigators understanding of homeostasis in hemodialysis.
The investigators hypothesize that the signals generated from the PPG device along with
traditional monitoring and nursing judgment, will allow experienced, oriented staff to
anticipate hemodynamic instability, intervene to prevent or mitigate the intradialytic
hypotention [IDH], forestalling the onset of non-facilitating compensatory reflexes that
preclude the patient from achieving an appropriate post-dialysis weight consistent with
euvolemia. Furthermore, it is hypothesized that the nephrologist and staff will be able to
wean patients from anti-hypertensive medications and craft patient specific dialysis orders
and UF profiles that achieve consistent, comfortable treatment to appropriate end points.
The study aims include:
Aim 1: To confirm the temporal sequence of PPG signals and changes in BP in routine
hemodialysis.
Aim 2: To refine further the predictive algorithms of PPG, augmented with continuous cardiac
event monitoring (pre-intra-post hemodialysis) Aim 3: To develop targeted interventions to
reverse the cardiovascular stress indicated by the PPG and to maintain perfusion.
Aim 4: To develop care paths approved by the medical staff and primary care nephrologist
allowing RNs to respond to signals from the PPG.
n/a
Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Prevention
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