Crystalloids or Colloids for Goal-directed Fluid Therapy With Closed-loop Assistance in Major Surgery

January 18, 2018 updated by: Philippe VAN DER LINDEN, Brugmann University Hospital

Phase IV, Multicentric, Prospective, Controlled, Randomized, Double Blind Study Comparing a Crystalloid to a Colloid Used in the Perioperatory Hemodynamic Optimisation With a 'Closed Loop' Automatic Filling System, on the Post-surgery Morbidity in Major Abdominal Surgery.

Study goal: This study will examine whether there is a significant difference in postoperative outcomes between GDFT using a colloid solution versus a crystalloid solution.

Hypothesis: Perioperative fluid optimization through the use of a closed-loop assistance with a balanced starch solution (volulyte®) will be associated with a decrease in postoperative complications compared to the same approach using a balanced crystalloid solution (Plasmalyte®).

Objective: To establish which kind of intravenous fluid used for goal directed therapy with closed-loop assistance will reduce the number of postoperative complications (evaluation made by the POMS score).

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Controversy still persists regarding the type of fluid to use in the operating room to avoid hypovolemia and any circulatory insufficiency. While crystalloids and colloid solutions are frequently used to optimize intravascular volume during surgery, crystalloid solutions require more volume for hemodynamic optimization which may result in higher volumes of fluid administration and potentially side effects. Compared with crystalloids, colloids have the advantages of remaining in the intravascular space longer, achieving faster circulatory stabilization, maintaining colloid osmotic pressure and increasing micro perfusion. However, colloids are more expensive and may have various side effects.

In addition to the effect of crystalloids and colloids on the patient, the amount of each fluid administered is also under debate. Goal-directed fluid therapy (GDFT) strategies based on cardiac output (CO) optimization have been shown to benefit moderate- to high-risk surgery patients and have recently been recommended by professional societies in the UK, in France, and in Europe. However, despite the growing evidence, these strategies are often not implemented in current practice. One of the reasons for this lack of implementation is that GDFT strategies, like any other complex clinical protocol, require significant provider attention and vigilance for consistent implementation and it is well known that even under study conditions protocol compliance rates are often not greater than 50% In another hand, one of the chief complicating factors in fluid administration studies is variation in provider administration practices, even when attempting to follow a protocol. Previous studies have used closed-loop (automated) systems to deliver fluid by a standardized protocol, removing variation between providers as one of the confounders of the study. Dr. Cannesson and Rinehart (UC Irvine, California, USA) have recently developed and used a closed-loop system for the provision of GDFT in clinical studies at UC Irvine and La Pitie hospital in France. The closed-loop system is beneficial because it involves the standardization of fluid management and all patients are treated equivalently. This system will thus provide consistent GDFT for all cases in the protocol and remove inter-provider variability as a confounder between groups.

Study goal: This study will examine whether there is a significant difference in postoperative outcomes between GDFT using a colloid solution versus a crystalloid solution.

Hypothesis: Perioperative fluid optimization through the use of a closed-loop assistance with a balanced starch solution (volulyte®) will be associated with a decrease in postoperative complications compared to the same approach using a balanced crystalloid solution (Plasmalyte®).

Objective: To establish which kind of intravenous fluid used for goal directed therapy with closed-loop assistance will reduce the number of postoperative complications (evaluation made by the POMS score).

Study Type

Interventional

Enrollment (Actual)

160

Phase

  • Phase 4

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

      • Brussels, Belgium, 1020
        • CHU Brugmann
      • Brussels, Belgium, 1070
        • Erasme

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

Ages Eligible for Study

14 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Adult patients (over the age of 18) undergoing elective major abdominal surgery that is expected to take longer than 3 hours and requiring a general anesthesia and a minimally invasive cardiac output monitoring (Vigileo/Flotrac)
  • Patients who provide written informed consent

Exclusion Criteria:

  • Patients under 18 years of age
  • Patients not undergoing surgery, requiring anesthesia, or cardiac output monitoring
  • Patients with arrhythmia and/or atrial fibrillation
  • Patients who are allergic to HES
  • Patients with renal insufficiency (serum creatinine of >2 mg/ml) or hepatic dysfunction (liver enzymes >1.5)
  • Patients who has coagulation disorders (please define: values higher than 1.5x normal values
  • Patients without the capacity to give written informed consent or refusal of consent
  • Patients included in another protocol within a period of 3 months or Participating in another randomised trial
  • Pregnancy at time of enrolment.

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: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Volulyte
A baseline crystalloid infusion (plasmalyte®) will be set by the attending physician at 3 cc/kg/hr (standard patient care) for each of the randomized groups. The patient will receive fluid management via a closed loop (automated) system that will use an infusion pump (Q-Core) and a controller (a computer run index and algorithm developed by Sironis) to standardize the way fluids are administered intra-operatively and eliminate variation between clinical providers. The liquid perfused will be bolus amounts of volulyte.
Active Comparator: Plasma-Lyte
A baseline crystalloid infusion (plasmalyte®) will be set by the attending physician at 3 cc/kg/hr (standard patient care) for each of the randomized groups. The patient will receive fluid management via a closed loop (automated) system that will use an infusion pump (Q-Core) and a controller (a computer run index and algorithm developed by Sironis) to standardize the way fluids are administered intra-operatively and eliminate variation between clinical providers. The liquid perfused will be bolus amounts of plasma-lyte.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
POMS score
Time Frame: 48 hours
Difference between the 2 groups in postoperative morbidity identified with the Post-Operative Morbidity Survey (POMS score) on postoperative days 2.
48 hours

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Mortality rate
Time Frame: 30 days
Difference in 30-day post-operative mortality between the 2 groups
30 days
Length of hospitalisation
Time Frame: every day up to 90 days after hospitalisation
Difference in duration of hospital length of stay as well as ICU length of stay.
every day up to 90 days after hospitalisation
Quantity of fluid administered during surgery
Time Frame: 24 hours
Fluid balance during surgery
24 hours
Transfusion rate
Time Frame: 8 days
Differences of transfusion rate between the two groups, in ml
8 days
Hypotension incidence
Time Frame: 8 days
Incidence of hypotension (defined as total case time spent with 20% drop from baseline preoperative blood pressure).
8 days
Need of vasopressors
Time Frame: 24 hours
Difference in the need and quantity of vasopressors between the two groups
24 hours
Mean case cardiac index (L /BSA)
Time Frame: 24 hours
Mean case cardiac index (L /BSA), Mean case cardiac stroke volume index (mL/ BSA).
24 hours
Whodas scale
Time Frame: 6 months after surgery
Enrolled patients will be contacted by phone and their quality of life assessed by the Whodas scale
6 months after surgery
Whodas scale
Time Frame: 1 year after surgery
Enrolled patients will be contacted by phone and their quality of life assessed by the Whodas scale
1 year after surgery
Pruritus apparition
Time Frame: 6 months after surgery
Enrolled patients will be contacted by phone 6 months after surgery and any pruritus apparition will be recorded
6 months after surgery
Pruritus apparition
Time Frame: 1 year after surgery
Enrolled patients will be contacted by phone 1 year after surgery and any pruritus apparition will be recorded
1 year after surgery
Renal function - urea level
Time Frame: 6 months after surgery
Urea levels. Measured in a blood sample taken according to the standard of care outpatient post-operative follow appointments.
6 months after surgery
Renal function - urea level
Time Frame: 1 year after surgery
Urea levels. Measured in a blood sample taken according to the standard of care outpatient post-operative follow appointments.
1 year after surgery
Renal function - creatinine level
Time Frame: 6 months after surgery
Creatinine levels. Measured in a blood sample taken according to the standard of care outpatient post-operative follow appointments.
6 months after surgery
Renal function - creatinine level
Time Frame: 1 year after surgery
Creatinine levels. Measured in a blood sample taken according to the standard of care outpatient post-operative follow appointments.
1 year after surgery
Renal function - Estimated glomerular filtration rate (eGFR)
Time Frame: 6 months after surgery
Creatinine levels. Measured in a blood sample taken according to the standard of care outpatient post-operative follow appointments.
6 months after surgery
Renal function - Estimated glomerular filtration rate (eGFR)
Time Frame: 1 year after surgery
Creatinine levels. Measured in a blood sample taken according to the standard of care outpatient post-operative follow appointments.
1 year after surgery

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Amélie Delaporte, MD, CHU Brugmann
  • Principal Investigator: Alexandre Joosten, MD, Erasme
  • Principal Investigator: Philippe Van der Linden, MD, Pr, CHU Brugmann
  • Principal Investigator: Brigitte Ickx, Md, Pr, Erasme

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 (Actual)

February 24, 2015

Primary Completion (Actual)

December 21, 2017

Study Completion (Actual)

December 21, 2017

Study Registration Dates

First Submitted

December 5, 2014

First Submitted That Met QC Criteria

December 8, 2014

First Posted (Estimate)

December 9, 2014

Study Record Updates

Last Update Posted (Actual)

January 19, 2018

Last Update Submitted That Met QC Criteria

January 18, 2018

Last Verified

January 1, 2018

More Information

Terms related to this study

Other Study ID Numbers

  • CHUB-fluides

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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