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Postoperative Sedation After Cardiac Surgery

Not Applicable
Terminated
Conditions
Surgery, Cardiac
Anesthesia
Interventions
Device: Automated postoperative sedation
Registration Number
NCT02488486
Lead Sponsor
Hopital Foch
Brief Summary

This pilot study evaluates the effectiveness of a closed-loop administration of propofol and remifentanil guided by the bispectral index for short-term sedation after cardiac surgery.

Detailed Description

Not available

Recruitment & Eligibility

Status
TERMINATED
Sex
All
Target Recruitment
19
Inclusion Criteria
  • consent for participation
  • cardiac surgical procedure requiring postoperative sedation
Exclusion Criteria
  • pregnant women,
  • neurological or muscular disorder
  • high risk of revision surgery
  • patients having required a redo operation if the postoperative period of sedation was less than 2 hours

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
Automated postoperative sedationAutomated postoperative sedationPostoperative sedation is provided automatically using a closed-loop system. Bispectral index is used as the input signal and an algorithm defines the appropriate concentrations of propofol and remifentanil. Adequate postoperative sedation is defined by a bispectral index between 40 and 60.
Automated postoperative sedationremifentanilPostoperative sedation is provided automatically using a closed-loop system. Bispectral index is used as the input signal and an algorithm defines the appropriate concentrations of propofol and remifentanil. Adequate postoperative sedation is defined by a bispectral index between 40 and 60.
Automated postoperative sedationpropofolPostoperative sedation is provided automatically using a closed-loop system. Bispectral index is used as the input signal and an algorithm defines the appropriate concentrations of propofol and remifentanil. Adequate postoperative sedation is defined by a bispectral index between 40 and 60.
Primary Outcome Measures
NameTimeMethod
Level of sedation6 hours

Richmond Agitation-Sedation Scale measured until extubation

Secondary Outcome Measures
NameTimeMethod
Changes in Richmond Agitation-Sedation Scale consecutive to a tracheal suctioning6 hours
Changes in concentration of propofol consecutive to a tracheal suctioning6 hours
Level of pain during sedation6 hours

Behavioral Pain Scale measured until extubation

Hemodynamic status during the sedation period6 hours

Number of medical interventions

Changes in hemodynamics profile consecutive to a tracheal suctioning6 hours
Changes in Bispectral Index consecutive to a tracheal suctioning6 hours
Changes in Behavioral Pain Scale consecutive to a tracheal suctioning6 hours
Level of consciousness after extubation6 hours

Richmond Agitation-Sedation Scale assessed every hour for three hours after extubation

Changes in concentration of remifentanil consecutive to a tracheal suctioning6 hours
Calculation of indices of performance of the closed-loop system6 hours
Total amounts of propofol observed during sedation period6 hours
Pain after extubation6 hours

Simple numerical scale from 0 (no pain) to 10 (worst possible) assessed every hour for three hours after extubation

Delay before awakening6 hours

Delay between the cessation of infusion of propofol and remifentanil and extubation.

Number of temporary or definitive interruptions of the automated administration of propofol and remifentanil6 hours
Total amounts of remifentanil observed during sedation period6 hours
Changes in calculated plasma concentrations of propofol including minimum concentrations and maximum values6 hours
Changes in calculated plasma concentrations of remifentanil including minimum concentrations and maximum values.6 hours
Periods of electrical silence6 hours

Number and duration of electroencephalographic periods of silence

Awareness standardized questionnaire48 hours

Trial Locations

Locations (1)

Clinique Ambroise Paré

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Neuilly-sur-Seine, Hauts-de-Seine, France

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