Automated Versus Manual Fluid Management for High Risk Abdominal Surgical Patient. A Prospective, Randomized Trial (CL vs CP)

December 13, 2025 updated by: Hospices Civils de Lyon

Per Operative Fluid Optimisation Comparison of an Automated Closed-Loop System Versus Current Practice in High Risk Abdominal Surgical Patient. A Prospective, Randomized Clinical Trial.

Dynamic parameters like pulse pressure variation have been shown to be accurate predictors of fluid responsiveness. Hemodynamic optimization based on fluid management and stroke volume optimization have been shown to improve patient outcomes, especially for moderate and high risk abdominal surgical patients. A novel closed-loop fluid administration system based on multi-parameter hemodynamic monitoring have been described recently. This prospective, randomized, surgeon and patient blinded study aims at comparing the cardiac output provided by either this closed-loop system or the anesthesiologist team in high-rish surgical patient elected for abdominal surgery at Pierre Bénite University Hospital, Hospices Civils of Lyon, France. Primary endpoint is the mean indexed cardiac output during surgery per group. We will also compare hemodynamic parameter (cardiac output, stroke volume, blood pressure heart rate…) and patient's outcomes (morbidity, mortality, transfusion rate, hospital length of stay) between groups

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
46

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • France
      • Pierre-Bénite, France, 69 495
        • Centre Hospitalier Lyon Sud, Hospices Civils de Lyon

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Elective major abdominal surgery
  • Patient physical status ASA 2-4
  • General anesthesia with positive pressure ventilation
  • High risk surgical patient with a per operative Vigileo® cardiac output monitoring decided a priori.

Exclusion Criteria:

  • Pregnant female
  • Intraoperative hyperthermic chemotherapy procedure
  • Patient physical status ASA more than 4
  • Patient with allergy to hydroxyethyl starch
  • Cardiac arrhythmia
  • ventilation with tidal volume inferior 7mL/Kg

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Automated fluid management system (Closed-loop system)
cardiac output Vigileo® (Edwards Lifesciences) monitoring is connected to the closed loop system that will automatically provide per operative fluid bolus to optimize cardiac output by automated detection of fluid responsiveness state.
Device: Closed loop automated System (LIR®: learning intravenous resuscitator)
Connection of the system to the patient under supervision of the anesthesiologist team during all the anesthesia procedure, respective of the applicability criteria for the fluid responsiveness detection.
Sham Comparator: Current practice manual fluid management
cardiac output Vigileo® (Edwards Lifesciences) monitoring will be used to help the anesthesiologist team to detect fluid responsiveness state for the manual fluid management optimization
Device: manual current practice by anesthesiologist team
The anesthesiologist team will manage the fluid administration during all the anesthesia procedure.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Mean indexed cardiac output
Time Frame: J1 to J12 (Within the surgical hospital length of stay)
J1 to J12 (Within the surgical hospital length of stay)

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
per operative hemodynamic parameter
Time Frame: J1 (per operative time)
J1 (per operative time)
Per operative fluid administration
Time Frame: J1 (per operative)
J1 (per operative)
Hospital length of stay
Time Frame: J1 to J12
Within the surgical hospital length of stay
J1 to J12
Occurrence of a adverse event after surgery
Time Frame: an expected average of 12 days
Within the surgical hospital length of stay
an expected average of 12 days
Occurrence of a death whatever the cause
Time Frame: an expected average of 12 days
Within the surgical hospital length of stay
an expected average of 12 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Hospices Civils de Lyon

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
University of California, Irvine

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 1, 2014

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 1, 2015

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
October 1, 2015

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
September 17, 2013

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 19, 2013

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
September 26, 2013

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
December 19, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
December 13, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
December 1, 2025

More Information

Terms related to this study

Keywords

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2012.770

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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