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Plasma VolumeNCT03963089

Effect of Tidal Volume Change on Pressure-based Prediction of Fluid Responsiveness in Children

A study testing Tidal volume_6mL/kg, Tidal volume_10mL/kg and Tidal volume_14mL/kg in people with Plasma Volume and Tidal Volume, run by Seoul National University Hospital at 1 site in South Korea.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study evaluates predictability of fluid responsiveness of pressure-based dynamic variables such as pulse pressure variation and systolic pressure variation, according to tidal volume change in patients undergoing cardiac surgery. Read more about this study

Who is it for?
Ages Up to 5 years
Conditions the study is for
Plasma Volume, Tidal Volume
What is being tested?
Tidal volume_6mL/kg, Tidal volume_10mL/kg and Tidal volume_14mL/kg
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
1 siteSouth Korea
Study dates
30 May 2019to 6 Oct 2020
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages Up to 5 years
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Children younger than 6 years old planned to undergo ventricular septal defect closure or atrial septal defect closure under general anesthesia

Who cannot join

  • Children with other complex cardiac defects
  • Children with arrhythmia
  • Children with preoperatively measured ejection fraction of less than 30%
  • Children with underlying pulmonary disease

Trial locations and contacts

1 site in 1 country.

South Korea1 site
  • Seoul National University Hospital

    Seoul, 03080

Other trials in South Korea

About this study

This study evaluates predictability of fluid responsiveness of pressure-based dynamic variables such as pulse pressure variation and systolic pressure variation, according to tidal volume change in patients undergoing cardiac surgery.

Read the detailed description

Pressure-based dynamic variables such as pulse pressure variation(PPV) and systolic pressure variation(SPV) are known to be unreliable for prediction of fluid responsiveness in children.

The hypothesis is that tidal volume change in mechanically ventilated children undergoing anesthesia would affect reliability of aforementioned dynamic variables in prediction of fluid responsiveness, especially in the way that reliability increases for high tidal volume.

In children undergoing cardiac surgery, tidal volume is changed to 6mL/kg, 10mL/kg and 14mL/kg after closure of sternum, followed by measurement of PPV, SPV. We also measure the respiratory variation of aortic blood peak velocity(△Vpeak) via transesophageal echocardiography, which is known to best predict fluid responsiveness.

Afterward, 10mL/kg of crystalloid solution is administered for fluid loading. 'Fluid responder' is defined as subjects with increase of stroke volume index more than 15% after fluid loading of 10mL/kg.

With these data, whether the predictability of fluid responsiveness of PPV and SPV changes according to change in tidal volume is evaluated by comparing the area under the curve of the receiver-operating characteristics curve between themselves and △Vpeak.

Being tested
Tidal volume_6mL/kg, Tidal volume_10mL/kg, Tidal volume_14mL/kg, Fluid loading
Keywords
Fluid Therapy, Hemodynamic Monitoring

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Tidal volume_6mL/kgProcedure or surgery

    Set tidal volume to 6mL/kg for 1 minute

  • Tidal volume_10mL/kgProcedure or surgery

    Set tidal volume to 10mL/kg for 1 minute

  • Tidal volume_14mL/kgProcedure or surgery

    Set tidal volume to 10mL/kg for 1 minute

  • Fluid loadingProcedure or surgery

    Administer 10mL/kg of crystalloid for 5 minutes

Study groups in NCT03963089
Study groupRoleWhat they receive
Study groupExperimentalMeasure pulse pressure variation and systolic pressure variation after each set of tidal volume to 6mL/kg, 10mL/kg and 14mL/kg. Measure respiratory variation of aortic blood flow peak velocity via transesophageal echocardiography at tidal volume of 10mL/kg. Measure stroke volume index via transesophageal echocardiography before and 5 min after fluid loading with 10mL/kg of crystalloid.
Receives: Procedure: Tidal volume_6mL/kg; Procedure: Tidal volume_10mL/kg; Procedure: Tidal volume_14mL/kg; Procedure: Fluid loading

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Stroke volume index

    Define subject that shows increase of stroke volume index more than 15% after 10mL/kg of fluid loading as fluid responder, otherwise as non-responder

    Measured: From sternal closure to 5 minutes after fluid loading

  2. Predictability_PPV and SPV

    Area under the curve of the receiver-operative characteristic curve for prediction of fluid responder of pulse pressure variation and systolic pressure variation after each change of set tidal volume

    Measured: From sternal closure to 5 minutes after fluid loading

Secondary outcomes (2)
  1. Predictability_△Vpeak

    Area under the curve of the receiver-operative characteristic curve for prediction of fluid responder of respiratory variation of aortic blood flow peak velocity measured via transesophageal echocardiography at tidal volume of 10mL/kg

    Measured: From sternal closure to 5 minutes after fluid loading

  2. Grey zone

    Compare the range that the prediction of fluid responsiveness is unreliable (grey zone) for each variable in each set tidal volume

    Measured: From sternal closure to 5 minutes after fluid loading

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 May 2019
  2. Study start30 May 2019
  3. Primary completion23 Jun 2020
  4. Study completion6 Oct 2020

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Screening
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03963089
Sponsor's protocol ID
1902-119-1013
Status last verified
May 2022
First submitted
19 May 2019
Last updated
5 May 2022
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Gan H, Cannesson M, Chandler JR, Ansermino JM. Predicting fluid responsiveness in children: a systematic review. Anesth Analg. 2013 Dec;117(6):1380-92. doi: 10.1213/ANE.0b013e3182a9557e.

    PubMed 24257389
  • Durand P, Chevret L, Essouri S, Haas V, Devictor D. Respiratory variations in aortic blood flow predict fluid responsiveness in ventilated children. Intensive Care Med. 2008 May;34(5):888-94. doi: 10.1007/s00134-008-1021-z. Epub 2008 Feb 8.

    PubMed 18259726
  • Byon HJ, Lim CW, Lee JH, Park YH, Kim HS, Kim CS, Kim JT. Prediction of fluid responsiveness in mechanically ventilated children undergoing neurosurgery. Br J Anaesth. 2013 Apr;110(4):586-91. doi: 10.1093/bja/aes467. Epub 2012 Dec 18.

    PubMed 23250892
  • Cannesson M, Le Manach Y, Hofer CK, Goarin JP, Lehot JJ, Vallet B, Tavernier B. Assessing the diagnostic accuracy of pulse pressure variations for the prediction of fluid responsiveness: a "gray zone" approach. Anesthesiology. 2011 Aug;115(2):231-41. doi: 10.1097/ALN.0b013e318225b80a.

    PubMed 21705869
  • Min JJ, Gil NS, Lee JH, Ryu DK, Kim CS, Lee SM. Predictor of fluid responsiveness in the 'grey zone': augmented pulse pressure variation through a temporary increase in tidal volume. Br J Anaesth. 2017 Jul 1;119(1):50-56. doi: 10.1093/bja/aex074.

    PubMed 28974059

Questions about this trial

What is this clinical trial studying?

A study testing Tidal volume_6mL/kg, Tidal volume_10mL/kg and Tidal volume_14mL/kg in people with Plasma Volume and Tidal Volume, run by Seoul National University Hospital at 1 site in South Korea.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 5 May 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in South Korea. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Stroke volume index (time frame: From sternal closure to 5 minutes after fluid loading). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03963089, which also lists 5 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 May 2022.

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