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Ventilators, MechanicalPOSITiVENCT03180203

Postoperative INTELLiVENT-ASV Ventilation

A study testing INTELLiVENT-ASV and Conventional modes in people with Ventilators, Mechanical and Intensive Care Units, run by Catharina Ziekenhuis Eindhoven at 1 site in Netherlands.

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 aim of this study is to investigate whether postoperative ventilation with INTELLiVENT-ASV(adaptive support ventilation) in high risk patients, after cardiothoracic surgery, is as effective, more user-friendly and as safe as compared to the conventional modes of ventilation. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
INTELLiVENT-ASV and Conventional modes
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
220 participants
Where
1 siteNetherlands
Study dates
22 May 2017to 27 Jun 2018
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age above 18 years of age.
  • Informed consent.
  • Body mass index of <35 kg/m2.
  • Mechanical ventilation after elective cardiothoracic surgery.
  • Admission of the patient after surgery is on the high care unit of the intensive care ward for postoperative mechanical ventilation.

Who cannot join

  • Withdrawal of consent
  • Medical history of a pneumonectomy or lobectomy.
  • The patient wit acute respiratory distress syndrome after surgery.
  • The patient with a medical history of COPD Gold 3 or 4.
  • The patient is participating in another postoperative study performed on the intensive care.
  • The patient is, preoperatively determined, eligible for a fast-track postoperative treatment program on the Post Anesthesia Care Unit.

Trial locations and contacts

1 site in 1 country.

Netherlands1 site
  • Catharina Hospital

    Eindhoven, North Brabant, 5623 EJ

Other trials in Netherlands

About this study

Official title: The Full Closed Loop Ventilation Mode INTELLiVENT-ASV: User-friendly and Effective Mechanical Ventilation in High Risk Postoperative Patient on the Intensive Care Unit

The aim of this study is to investigate whether postoperative ventilation with INTELLiVENT-ASV(adaptive support ventilation) in high risk patients, after cardiothoracic surgery, is as effective, more user-friendly and as safe as compared to the conventional modes of ventilation.

Read the detailed description

Recently, Hamilton Medical has introduced the new mechanical ventilation mode "INTELLiVENT-ASV". This is a fully closed ventilation mode that can automatically adjust the ventilation settings based on the measured End tidal CO2 (ETCO2) and the measured saturation (SpO2) in both passive and active ventilated patients. Current literature has shown that this mode is safe to use in patients admitted on the intensive care unit. A pilot study in the Catharina Hospital Eindhoven confirmed that in postoperative low risk patients on the intensive care unit INTELLiVENT-ASV is safe. Compared to continuous mandatory or pressure controlled ventilation with pressure support (conventional mechanical ventilation), INTELLiVENT-ASV is even as effective as conventional mechanical ventilation, with a significantly reduced number of interactions with the ventilator. However, available research about the effectiveness of INTELLiVENT-ASV in postoperative high risk patients is lacking. Also the knowledge about the user-friendliness of the above modes of mechanical ventilation for the users is lacking.

This is a prospective randomized study with a control group and a intervention group of postoperative high risk patients. Through randomization will be determined whether the participant, after surgery, will be mechanically ventilated with INTELLiVENT-ASV and Quickwean or with conventional mechanical ventilation.

Being tested
INTELLiVENT-ASV, Conventional modes
Keywords
INTELLiVENT-ASV, Fully closed-loop ventilation, Wean

What participants receive

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

  • INTELLiVENT-ASVDevice

    After ICU admission:

    • The first three hours: only ventilation with INTELLiVENT-ASV with Quickwean.
    • After three hours: Automatic spontaneous breathing trials (SBT) is activated and SBT starts if >10minutes PEEP:<9cmH2O,FiO2:<41%,VT/IBW<5ml/kg and RSB:<106l/l*min.

    Settings SBT are MV% 25%,PEEP 5cmH2O.SBT automatically stops if respiratory rate >35b/min or increases >100% since start of SBT, FiO2 >50%, PeTCO2 increases >8mmHg.

    Extubation criteria: Leakage <50ml/hr,hemodynamically stable, awake with enough muscle strength and successful SBT >10min.

    If during mechanical ventilation the ICU care providers decide that it is necessary for the treatment, they may switch to another ventilation mode or extubate without a SBT.

  • Conventional modesDevice

    After ICU admission:

    The first three hours: only ventilation with CMV or PS. If required care providers may change the mode to adaptive support ventilation.

    After three hours: manual SBT is required if >10min PS<11cmH2O,PEEP<9cmH2O,FiO2<41%.

    Settings SBT are PS 5cmH2O, PEEP 5cmH2O, FiO2 30%. SBT must be stopped if respiratory rate >35b/min or increases >100% since the start of SBT, saturation <92% or the PeTCO2 increases >8mmHg.

    Extubation criteria: Leakage <50ml/hr,hemodynamically stable, awake with enough muscle strength and successful SBT >10min.

    If during mechanical ventilation the ICU care providers decide that it is necessary for the treatment, they may switch to another ventilation mode or extubate without a SBT.

Study groups in NCT03180203
Study groupRoleWhat they receive
INTELLiVENT-ASVExperimentalINTELLiVENT-ASV is a full closed-loop ventilation mode,available on the mechanical ventilator S1 of Hamilton.
Receives: Device: INTELLiVENT-ASV
Conventional modesActive comparatorVolume controlled continuous mandatory ventilation (CMV) mode with pressure support mode on the Hamilton S1 Device.
Receives: Device: Conventional modes

What is being measured

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

  1. Percentage (%) of mechanical ventilation time in an optimal, acceptable or unacceptable ventilation zone.

    • An optimal zone = Tidal volume (TV) = 4-8 ml/kg of the predicted body weight (PBW) with an EtCO2 = 30-45mmHg, a plateau pressure = <31cmH2O and SpO2 = 93-98%.
    • An acceptable zone = TV = 8-12 ml/kg of PBW with an EtCO2 = 25-30 or 45-50mmHg, a plateau pressure = 31-35 cmH2O and SpO2 = 85-93% or >98%.
    • An unacceptable zone = TV >12 ml/kg of PBW or an EtCO2 = <25 or >50mmHg, plateau pressure >35 cmH2O or SpO2 = <85%.

    Measured: During the first 3 hours, since admission on the ICU with the start of the intervention ventilation mode.

Secondary outcomes (11)
  1. The percentage (%) of successful extubations.

    A successful extubation is an extubation without a new intubation or the use of non-invasive ventilation within 24, 48 or 72 hours.

    Measured: During the first 24, 48 and 72 hours after extubation

  2. Postoperative weaning time

    The time from admission on the ICU and a temperature of >35.5°C until extubation.

    Measured: 72 hours

  3. Workload

    The number of alarms and required interactions between the ventilator and the user during mechanical ventilation on the ICU.

    Measured: 72 hours

  4. Usability

    A survey with acceptance score (1-10) completed by the care provider at the bedside who treated the patient for the weaning

    Measured: Up to 1 day after extubation

  5. Patient agitation

    The number of agitated moments of the patient recognized by the ICU care provider at the bedside.

    Measured: Up to 72 hours of mechanical ventilation time

  6. Administration of sedatives and analgesics

    The number and dosages of administrations of NSAIDs, opiates, benzodiazepines, clonidine, propofol or haloperidol during mechanical ventilation.

    Measured: Up to 72 hours of mechanical ventilation time

  7. The Richmond Agitation-Sedation Scale (RASS)

    The RASS for every hour during mechanical ventilation.

    Measured: Up to 72 hours of mechanical ventilation time

  8. Postoperative atelectasis

    The number of a patients with an atelectasis on the first thoracic x-ray or the thoracic x-ray the following day after surgery.

    Measured: Up to 48 hours after extubation

  9. CO2 levels for postoperative pulmonary shunting

    The EtCO2/pCO2 ratio during mechanical ventilation.

    Measured: Up to 72 hours of mechanical ventilation time

  10. O2 levels for postoperative pulmonary shunting

    The pO2/FiO2 ratio during mechanical ventilation.

    Measured: Up to 72 hours of mechanical ventilation time

  11. Reliability of non-invasive oxygen saturation measurement

    The time of mechanical ventilation on the ICU without non-invasive measurement of the oxygen saturation.

    Measured: 72 hours

Timeline

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

  1. First posted8 Jun 2017
  2. Study start22 May 2017
  3. Primary completion1 May 2018
  4. Study completion27 Jun 2018

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
220 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03180203
Sponsor's protocol ID
NL58975.100.16
Acronym
POSITiVE
Status last verified
Nov 2018
First submitted
30 May 2017
Last updated
29 Nov 2018
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Beijers AJ, Roos AN, Bindels AJ. Fully automated closed-loop ventilation is safe and effective in post-cardiac surgery patients. Intensive Care Med. 2014 May;40(5):752-3. doi: 10.1007/s00134-014-3234-7. Epub 2014 Feb 28. No abstract available.

    PubMed 24577110
  • Lellouche F, Bouchard PA, Simard S, L'Her E, Wysocki M. Evaluation of fully automated ventilation: a randomized controlled study in post-cardiac surgery patients. Intensive Care Med. 2013 Mar;39(3):463-71. doi: 10.1007/s00134-012-2799-2. Epub 2013 Jan 22.

    PubMed 23338569
  • De Bie AJR, Neto AS, van Meenen DM, Bouwman AR, Roos AN, Lameijer JR, Korsten EHM, Schultz MJ, Bindels AJGH. Fully automated postoperative ventilation in cardiac surgery patients: a randomised clinical trial. Br J Anaesth. 2020 Nov;125(5):739-749. doi: 10.1016/j.bja.2020.06.037. Epub 2020 Jul 30.

    PubMed 32739044

Questions about this trial

What is this clinical trial studying?

A study testing INTELLiVENT-ASV and Conventional modes in people with Ventilators, Mechanical and Intensive Care Units, run by Catharina Ziekenhuis Eindhoven at 1 site in Netherlands.

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 5 inclusion and 6 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 29 Nov 2018. 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 Netherlands. 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?

Percentage (%) of mechanical ventilation time in an optimal, acceptable or unacceptable ventilation zone. (time frame: During the first 3 hours, since admission on the ICU with the start of the intervention ventilation mode.). 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 NCT03180203, which also lists 3 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 29 Nov 2018.

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