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Prospective randomised cross over comparison on the physiological response to non-invasive ventilation using either Air O2 or Heliox21 - Physiological response to Heliox21 and Air O2

Prospective randomised cross over comparison on the physiological response to non-invasive ventilation using either Air O2 or Heliox21 - Physiological response to Heliox21 and Air O2

Status
Not yet recruiting
Phases
Unknown
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2007-004851-12-GB
Enrollment
Unknown
Registered
2007-12-13
Start date
2008-01-03
Completion date
Unknown
Last updated
2012-03-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Respiratory failure MedDRA version: 9.1 Level: PT Classification code 10038695 Term: Respiratory failure

Interventions

Trade Name: Medical Air Product Name: Medical Air Product Code: Medical Air Pharmaceutical Form: Inhalation gas Other descriptive name: AIR, MEDICINAL Trade Name: Heliox21 Product Name: Heliox21 Prod

Sponsors

Whittington Hospital NHS Trust
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Adults aged =18 years 2. Males 3. Females 4. Any patient who is ventilated for = 5 days and/or has a tracheostomy to assist weaning from mechanical ventilation who has one or more of following risk factors suggesting that they are at risk of needing post extubation CPAP/BiPAP/NIV 5. BMI >28 6. Underlying respiratory disease 7. SpO2 =65 years) yes F.1.3.1 Number of subjects for this age range

Exclusion criteria

Exclusion criteria: 1. Age < 18 years 2. Patient/next of kin refusal/inability to consent 3. Adults with learning disabilities/dementia 4. Any contraindication to non-invasive ventilation 5. Inability to use mask (trauma/surgery) 6. Excessive secretions 7. Haemodynamic instability/life threatening arrhythmia 8. High risk of aspiration 9. Impaired mental status (Detained under the Mental Health Act) 10. Un-co-operative/agitated patient 11. Life threatening refractory hypoxemia 12. Undrained pneumothorax 13. Bullae on X-Ray 14. Recent upper GI anastamosis 15. Patients already enrolled in an interventional study

Design outcomes

Primary

MeasureTime frame
Main Objective: We wish to assess the practicalities of gas delivery and therapeutic benefits of Heliox21 in patients who require non-invasive ventilatory support (oxygen delivered via tightly sealed mask) following the removal of a breathing tube on the Intensive Care Unit.;Secondary Objective: We wish to assess if Heliox21 effects the number of patients who require re-insertion of the breathing tube. We wish to establish if Heliox21 effects the length of time to the removal of the tracheostomy.;Primary end point(s): Yang & Tobin 1991 conducted a prospective study of indexes predicting the outcome of trials of weaning from mechanical ventilation. They concluded rapid shallow breathing, as reflected by the f/VT ratio, was the most accurate predictor of failure, and its absence the most accurate predictor of success, in weaning patients from mechanical ventilation. We will therefore use f/VT ratio as our primary endpoint.

Countries

United Kingdom

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026