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Congenital Heart DiseaseVACO2NCT06292910

Central Venous to Arterial CO2 Difference and Low Cardiac Output Syndrome Related Outcomes in Children After Cardiac Surgery

An observational study of Congenital Heart Disease and Perioperative/Postoperative Complications, run by Prince of Songkla University at 1 site in Thailand.

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

The goal of this clinical trial is to compare the capability of 3 different bedside surrogates in children who underwent cardiac surgery and were admitted in intensive care unit. These test are lactate, oxygen saturation from central venous and the carbon dioxide gap between central venous and arterial. Read more about this study

Who is it for?
Ages 1 day to 18 years
What is being tested?
arterial and central venous blood gas analysis, lactate
How many people
136 participants
Where
1 siteThailand
Study dates
8 Aug 2021to 26 Dec 2023
Phase
Observational
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 1 day to 18 years
  • All sexes
  • Child, Adult

Study population: Children with cardiac disease in Songklanagarind hospital who undergone open cardiac surgery with cardiopulmonary bypass (age < 18 years old)

Who may be able to join

  • Children aged 0-18 years old with either congenital or acquired cardiac disease
  • Undergone cardiopulmonary bypass for cardiac surgery
  • Be admitted in PICU for post-operative care

Who cannot join

  • Preterm infant (GA < 37 weeks) or weight less than 2 kg
  • Patient who weaned off cardiopulmoanry bypass and required extracorporeal membrane oxygenator (ECMO) before leaving the operating room
  • Patient who required emergency cardiac operation within 24 hour after hospitalization
  • Patient who had significant residual left side outflow tract obstruction (e.g., coarctation of aorta, interrupted aortic arch) which defined by difference of SBP between upper and lower extremities more than 10 mmHg
  • Patient who had already participated in another research project
  • Patient who does not have both arterial line and central line catheter back from operating room
  • Parents or legal guardian refuse to inform consent.

Trial locations and contacts

1 site in 1 country.

Thailand1 site
  • Faculty of Medicine, Prince of Songkla University

    Hat Yai, Changwat Songkhla, 90110

Other trials in Thailand

About this study

Official title: Predictability of Central Venous to Arterial CO2 Difference (AVCO2) in Children With Cardiac Surgery to Poor Outcomes

The goal of this clinical trial is to compare the capability of 3 different bedside surrogates in children who underwent cardiac surgery and were admitted in intensive care unit. These test are lactate, oxygen saturation from central venous and the carbon dioxide gap between central venous and arterial.

The main questions is which one is the best prognostication for post operation poor outcomes Participants will be taken routine blood test for post cardiac care (at ICU arrival, 6, 12, and 24 hour post operation) and follow the their outcomes. There is no any intervention or drug in this research

Being tested
arterial and central venous blood gas analysis, lactate
Medical subject headings
Heart Defects, Congenital, Postoperative Complications, Hyperlactatemia

What participants receive

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

  • arterial and central venous blood gas analysis, lactateDiagnostic test

    blood gas analysis

What is being measured

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

  1. number of participant who developed low cardiac output syndrome related poor outcomes within 24 hour post operation

    the low cardiac output syndrome (LCOS) related poor outcomes was diagnosed if at least two of the following criteria were met within 24 hours postoperatively:

    1. clinical LCOS: prolonged capillary refill >3 seconds, systolic blood pressure <5th percentile for age and sex, persistent elevation of left atrial pressure >10 mmHg for at least 6 hours, and low urinary output (<1 mL/kg/hour) for at least 6 hours despite diuretic use
    2. laboratory LCOS: persistently elevated lactate level (>2 mmol/L), metabolic acidosis with an increase in the base deficit (>4 mmol/L) for at least 6 hours consecutively
    3. Vasoactive-inotropic score ≥20
    4. any unplanned surgery or intervention, cardiac arrest, or utilization of ECMO
    5. left ventricular fraction <50% on echocardiography

    Measured: from time of subject was admitted to ICU until the 24 hour post operation

Secondary outcomes (3)
  1. ventilator days

    number of the days subject was intubated and used mechanical ventilator after operation

    Measured: from date of subject was admitted to ICU until the date of subject was extubated, assessed up to 28 days

  2. inotrope days

    number of the days subject was on inotropic medication after operation

    Measured: from date of subject was admitted to ICU until the date of subject was free of inotropic drugs, assessed up to 28 days

  3. length of stay in ICU

    number of the days subject was stay in ICU after operation

    Measured: from date of subject was admitted to ICU until the date of subject was discharge, assessed up to 28 days

Timeline

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

  1. First posted5 Mar 2024
  2. Study start8 Aug 2021
  3. Primary completion21 Dec 2023
  4. Study completion26 Dec 2023

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
136 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06292910
Sponsor's protocol ID
REC 64-299-1-1
Acronym
VACO2
Status last verified
Feb 2024
First submitted
9 Feb 2024
Last updated
5 Mar 2024
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided: This data might be analyzed in other project and also we need to submit the form of data sharing to local EC unit.

Questions about this trial

What is this clinical trial studying?

An observational study of Congenital Heart Disease and Perioperative/Postoperative Complications, run by Prince of Songkla University at 1 site in Thailand.

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 3 inclusion and 7 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 Mar 2024. 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 Thailand. 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?

number of participant who developed low cardiac output syndrome related poor outcomes within 24 hour post operation (time frame: from time of subject was admitted to ICU until the 24 hour post operation). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 Mar 2024.

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