Hemodynamics, fluids & transfusion
Predicting fluid responsiveness using esophagus Doppler monitoring and pulse oximetry derived pleth variability index; retrospective analysis of a hemodynamic study
Authors' conclusion
Single or combined hemodynamic variables provided by esophagus Doppler monitoring and pulse oximetry derived pleth variability index could help clinicians avoid unnecessary fluid bolus infusions.
Study context
- Population
- Patients undergoing goal-directed fluid therapy during major open abdominal surgery266 bolus infusions
- Participants
- 108 patients
- Outcome
- Fluid responsiveness (stroke volume increase ≥ 10% after bolus) by pre-infusion esophagus Doppler and pleth variability index values
Main finding
As reported in the abstract
Likelihood of fluid responsiveness by pre-infusion hemodynamics
- Overall incidence of fluid responsiveness
- 44%
- Stroke volume > 80 mL, corrected flow time > 360 ms, or pleth variability index < 10%
- 30%-38%
- Stroke volume decreased by <8% since previous optimization
- 21%
- Stroke volume decrease <8% combined with stroke volume > 100 mL
- 0%
- Stroke volume ≤ 50 mL, corrected flow time ≤ 360 ms, or pleth variability index ≥ 10
- 50%-55%
- Stroke volume decrease > 8% since previous optimization
- 58%
- Stroke volume decrease > 8% combined with any other hemodynamic variable
- 66%-76%
Observational data: associations, not effects.
Original publication
Predicting fluid responsiveness using esophagus Doppler monitoring and pulse oximetry derived pleth variability index; retrospective analysis of a hemodynamic study. Acta Anaesthesiol Scand. Published 4 May 2023. doi:10.
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