NCT04535115

Brief Summary

In order to predict fluid responsiveness in the operating room and therefore benefit of performing fluid administration to improve patient's hemodynamic status, it will test two ventilation strategies : the Tidal Volume Challenge (VtC) and the Lung Recruitment Maneuver (LRM). The objective is to determine whether the variation of 2 parameters such as pulse pression variation (PPV) and stroke volume variation (SVV) during these 2 strategies, allows to predict fluid responsiveness in the operating room for any heavy surgery. All patients will benefit from the 2 ventilation strategies then a fluid administration, called " fluid challenge ", will be performed to discriminate the true responders and others. The order of the ventilation strategies will be determined by randomization.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
160

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Nov 2020

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

August 26, 2020

Completed
6 days until next milestone

First Posted

Study publicly available on registry

September 1, 2020

Completed
3 months until next milestone

Study Start

First participant enrolled

November 15, 2020

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 17, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 17, 2021

Completed
Last Updated

January 26, 2023

Status Verified

January 1, 2023

Enrollment Period

8 months

First QC Date

August 26, 2020

Last Update Submit

January 25, 2023

Conditions

Keywords

Tidal Volume ChallengeLung Recruitment ManeuverPulse Pression Varia-tionStroke Volume Variation.Fluid Responsiveness.

Outcome Measures

Primary Outcomes (1)

  • The area under the ROC curve (AUC) of the variation of the pulsed pressure (VPP) during the tidal volume challenge (VtC).

    throughout surgery (mean length expected between 3 and 5 hours). Measurements performed during sequences of 30 minutes that can occur several times during surgery

Secondary Outcomes (5)

  • The area under the ROC (AUC) curve of VPP during the alveolar recruit-ment maneuver.

    throughout surgery (mean length expected between 3 and 5 hours). Measurements performed during sequences of 30 minutes that can occur several times during surgery

  • The AUCs of the two techniques calculated above.

    throughout surgery (mean length expected between 3 and 5 hours). Measurements performed during sequences of 30 minutes that can occur several times during surgery

  • The area under the ROC curve (AUC) of stroke volume variation (SVV) during the tidal volume challenge (VtC).

    throughout surgery (mean length expected between 3 and 5 hours). Measurements performed during sequences of 30 minutes that can occur several times during surgery

  • The area under the ROC curve (AUC) of stroke volume variation (SVV) during the lung recruitment maneuver.

    throughout surgery (mean length expected between 3 and 5 hours). Measurements performed during sequences of 30 minutes that can occur several times during surgery

  • Number of complications in pneumothorax

    1 day (at recovery room after surgery) and at day 2

Study Arms (2)

Group 1

EXPERIMENTAL

Starting LRM (Lung Recruitment Maneuver)

Procedure: Starting LRM (Lung Recruitment Maneuver)

Group 2

EXPERIMENTAL

Starting VtC (Tidal Volume Challenge)

Procedure: Starting VtC (Tidal Volume Challenge)

Interventions

The LRM is performed first for 30 seconds (an insufflation pressure of 30 cmH2O for 30 seconds is applied). After a free interval of 3 minutes, the VtC is done during 1 minute. For VtC, tidal volume is increased from 6 to 8 ml.kg-1 of predicted body weight. Finally, after a new free interval of 3 minutes, the fluid challenge (consisting in fluid administration of 250 ml of Ringer Lactate) is started for 10 minutes (in aim to determine which patients are responders). This sequence is repeated every 30 minutes (maximum four times).

Group 1

The VtC is performed first for 1 minute. After a free interval of 3 minutes, the LRM is done for 30 seconds. Finally, after another free interval of 3 minutes, the fluid challenge is started for 10 minutes. This sequence is repe-tead every 30 minutes (maximum four times).

Group 2

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients scheduled for major abdominal, vascular or neurosurgery requiring invasive arterial monitoring of SVV and PPV with placement of a radial arterial catheter connected to the ProAQT® System.
  • Block duration \> 2 hours.

You may not qualify if:

  • open surgery
  • history of supra ventricular arrhythmias
  • beta-blocking patient
  • BMI\>30 kg.m-2 or \<15 kg.min-2
  • right ventricular dysfunction
  • severe valvulopathies
  • intracardiac shunt
  • renal failure dialysis
  • patient's refusal

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hop Claude Huriez Chu Lille

Lille, 59037, France

Location

Study Officials

  • Gilles Lebuffe, MD,PhD

    University Hospital, Lille

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
SCREENING
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 26, 2020

First Posted

September 1, 2020

Study Start

November 15, 2020

Primary Completion

July 17, 2021

Study Completion

July 17, 2021

Last Updated

January 26, 2023

Record last verified: 2023-01

Locations