Fluid Responsiveness
Conditions
Brief summary
The aim of this study is to compare the accuracy of Pleth Variability Index (Radical 7 device) and of Pulse Pressure Variation (Nexfin device) with the Doppler measurement of stroke volume (esophageal Doppler) to detect the response to a fluid challenge.
Interventions
Sponsors
Study design
Eligibility
Inclusion criteria
* patients undergoing major abdominal surgical procedures performed by laparotomy * patients undergoing major urological surgical procedures performed by laparotomy * patients undergoing major gynecological surgical procedures performed by laparotomy * age ≥ 18 years * signed informed consent
Exclusion criteria
* pregnant women * esophageal disease * aortic valve disease * allergy to gelatin * BMI \> 35 * beta blocker treatment, antiarrhythmic treatment, arrhythmia, pace-maker, * presence of an arterio-venous shunt or of any other vascular disease on upper limb
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Ability of Pleth Variability Index and of Pulse Pressure Variation to detect the response to a fluid challenge | during the intraoperative period | Three fluid challenges, 250 mL of a gelatine solution, are planned. Pleth Variability Index and Pulse Pressure Variation are compared to the measurement of stroke volume by Esophageal Doppler (the reference method) |
Secondary
| Measure | Time frame |
|---|---|
| Inability to obtain Pleth Variability Index or Pulse Pressure Variation indices | during the intraoperative period |
Countries
France