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Respiratory DiseaseNCT06254417

Study of Diaphragmatic Ultrasound as a Predictor of Mechanical Ventilation in Patients With Respiratory Diseases on Admission to Intensive Care Unit

A study testing Diaphragmatic ultrasound in people with Respiratory Disease, run by Ain Shams University.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Ultrasonography has been used to explore diaphragmatic contractile activity by measuring thickening fraction .When thickening fraction was < 20% during tidal breathing, it is commonly associated with respiratory failure. Read more about this study

Who is it for?
Ages 18 to 90 years
Conditions the study is for
Respiratory Disease
What is being tested?
Diaphragmatic ultrasound
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
62 participants
Where
No sites listed yet
Study dates
1 Feb 2024to 30 Jul 2024
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 to 90 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Dyspnea: respiratory rate > 22 breaths per min.
  • Hypoxia: as SO2 < 92% on room air.
  • Hypercapnia: as PaCO2 > 45mmHg.

Who cannot join

  • Age <18 year.
  • Cardiogenic pulmonary edema.
  • History of interstitial lung disease (fibrosis).
  • Neuromuscular disease.
  • Significant chest wall deformities.
  • Previous diagnosis of diaphragmatic palsy.
Show all 10Show fewer
  • Recent thoracotomy or sternotomy (within the previous year).
  • Severe hemodynamic instability or shock.
  • Pregnancy.
  • Diagnosis of pneumothorax or pneumo mediastinum.

About this study

Ultrasonography has been used to explore diaphragmatic contractile activity by measuring thickening fraction .When thickening fraction was < 20% during tidal breathing, it is commonly associated with respiratory failure.

Diaphragmatic ultrasound had been used before as a tool to predict weaning from mechanical ventilation.

In this study diaphragmatic ultrasound will be done upon admission to predict of mechanical ventilation in patients with respiratory diseases.

Read the detailed description

All Patients will be subjected to the following Detailed history taking from patient or relatives including the cause of respiratory diseases.

Complete physical examination: general and local examination will be carried out for all patients.

All cases undergo standard monitoring including invasive and non-invasive blood pressure monitoring, SpO2 and ECG.

Full laboratory investigations: At the beginning of the study (Arterial blood gases, CBC, Coagulation Profile, Kidney function tests, Liver function tests, Cardiac enzymes).

All patients will be treated according to the international guidelines according to their medical status . As well as Hemodynamic support will be provided by fluids resuscitation and/or catecholamine infusion if necessary, to keep mean arterial pressure >70 mmHg.

Respiratory support will consist of oxygen administration or mechanical ventilation if necessary, to maintain SPO2 > 90% and PH > 7.25.

Diaphragmatic ultrasound will be performed to all patients with respiratory disease to evaluate diaphragmatic thickening and estimate thickening fraction and to evaluate diaphragmatic excursion. Measurements will be obtained at bedside with a portable ultrasound machine equipped with a linear probe (Logic P6 Pro, GE Healthcare). Diaphragmatic thickness measures will be performed on right Intercostal approach through the zone of apposition. Diaphragmatic excursion will be performed using curved-array probe (Logic P6 Pro, GE Healthcare) is positioned below right costal arch at the mid-clavicular line. The ultrasound study will be done and /or supervised by ultrasound expert.

The decision of using mechanical ventilation will not depend on the diaphragmatic ultrasound results.

Primary outcome: estimation of diaphragmatic thickening fraction which will predict mechanical ventilation.

Secondary outcome: estimation of diaphragmatic excursion which will predict mechanical ventilation.

Non invasive ventilation (NIV) will be delivered through a full-face mask connected to a high-performance ventilator. In non-invasive pressure support mode. PEEP and delivered FIO2 will be set to achieve oxygen saturation target of 88-92%. Pressure support level will be adjusted to obtain a target volume of 6-8 mL/kg, a frequency < 30 breaths/min, and air leak < 15%. Cycling will be set at 40% of peak flow. If non-invasive ventilation failed or patient deteriorated invasive ventilation will be required.

Indication of non invasive ventilation:

  • Moderate to sever dyspnea increased over usual , respiratory rate more than24 cycle/ min, accessory muscle use and paradoxical breathing.
  • Pao2 more than 55 mmHg.
  • PH between 7.25 and 7.35.
  • Pao2 /Fio2 less than 200.
  • Hypoxia So2 less than 88% on O2

Indication of invasive ventilation:

  • any contraindication of non invasive ventilation.
  • Failure of non invasive ventilation after (1:2) hours.
  • Hemodynamic instability. (Decrease base line values >20% on admission)
Being tested
Diaphragmatic ultrasound
Medical subject headings
Respiration Disorders

What participants receive

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

  • Diaphragmatic ultrasoundProcedure or surgery

    Diaphragmatic ultrasound will be performed to all patients with respiratory disease to evaluate diaphragmatic thickening and estimate thickening fraction and to evaluate diaphragmatic excursion. Measurements will be obtained at bedside with a portable ultrasound machine equipped with a linear probe (Logic P6 Pro, GE Healthcare). Diaphragmatic thickness measures will be performed on right Intercostal approach through the zone of apposition. Diaphragmatic excursion will be performed using curved-array probe (Logic P6 Pro, GE Healthcare) is positioned below right costal arch at the mid-clavicular line. The ultrasound study will be done and /or supervised by ultrasound expert

Study groups in NCT06254417
Study groupRoleWhat they receive
NON VENTILATED GROUPActive comparatorNot described
Receives: Procedure: Diaphragmatic ultrasound
VENTILATED GROUPActive comparatorNot described
Receives: Procedure: Diaphragmatic ultrasound

What is being measured

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

  1. estimation of diaphragmatic thickening fraction

    Measured: immediately after intensive care admission

Secondary outcomes (1)
  1. estimation of diaphragmatic excursion

    measurement of the movement of the diaphragm during breathing by ultrasonography(normally about 3-5 centimeter)

    Measured: immediately after intensive care admission

Timeline

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

  1. First posted12 Feb 2024
  2. Study start1 Feb 2024 (estimated)
  3. Primary completion30 Jul 2024 (estimated)
  4. Study completion30 Jul 2024 (estimated)

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
Diagnosis
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
62 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06254417
Sponsor's protocol ID
master ICU
Status last verified
Feb 2024
First submitted
28 Jan 2024
Last updated
12 Feb 2024
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing Diaphragmatic ultrasound in people with Respiratory Disease, run by Ain Shams University.

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 10 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: status not confirmed, as of the sponsor's last update on 12 Feb 2024. Status can change between updates, so confirm with the study contact before making plans.

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?

Results are not available in the source record.

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?

estimation of diaphragmatic thickening fraction (time frame: immediately after intensive care admission). 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 12 Feb 2024.

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