A Comparative study of airway pressures generated by non-invasive respiratory support used in cardiac surgical patients

Not Applicable

Completed

• Conditions: on-invasive respiratory support post cardiac surgery; Non-invasive respiratory support post cardiac surgery; Respiratory - Other respiratory disorders / diseases

• Registration Number: ACTRN12609000305224
• Lead Sponsor: Auckland City Hospital

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Results First Posted: 1900-01-01
• Study Start: 2009-05-19
• Last Update Posted: 13 January 2020

Recruitment & Eligibility

• Status: Completed
• Sex: All
• Target Recruitment: 15

Inclusion Criteria

Consent has been obtained.
Patient is over 18 years of age.
Patient is to undergo cardiac surgery.

Exclusion Criteria

The patient has significant nasal septum deviation.
High flow nasal oxygen therapy is contraindicated.
Non-invasive ventilation is contraindicated
Following surgery the patient is unable to follow simple commands once awake and extubated.

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Mean nasopharyngeal airway pressure as determined by measurements taken over one minute of breathing. Specially designed software will be used to carry out the measurements and calculate the mean.[Six measurements in total will be undertaken - one at each flow level for Optiflow and one at each pressure level for facemask CPAP. Each measurement is continuous over one minute. Mean airway pressure is calculated by averaging the peak and trough pressures over the entire minute of breathing.]

Secondary Outcome Measures

Name	Time	Method
A[NA]