Assessment of High Flow Nasal Cannula Oxygenation in EBUS Bronchoscopy (AHOE)

April 30, 2018 updated by: Mohammed Ahmed, University College Hospital Galway

This study is a prospective randomised trial where a computer will randomly allocate

patients to one of two possible methods of delivering oxygen during the procedure of

bronchoscopy. This trial compares high flow nasal cannula (HFNC) with nasal prongs in

delivering oxygen to patients undergoing endo-bronchial ultrasound guided trans-

bronchial nodal aspiration (EBUS-TBNA) a specialised form of bronchoscopy procedure.

HFNC uses humidified higher gas flow rates than conventional low flow systems such as

nasal prongs which are limited by the respiratory rate and effort.

Study Overview

Status

Completed

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

40

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Galway, Ireland
        • University Hospital Galway

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Subjects with a peripheral arterial pulse oximetry ≥ 90% breathing room air
  • Age ≥ 18 years
  • Able to breathe spontaneously throughout the procedure

Exclusion Criteria:

  • Respiratory or cardiac failure
  • Recent myocardial infarction < 6 weeks ago
  • On long term oxygen therapy, those with tracheostomy and/ or non-invasive or invasive mechanical ventilation
  • Nasal and/ or nasopharyngeal disease
  • Inability to give informed consent
  • Dementia
  • Hepatic or end stage renal disease
  • Pregnancy

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: High flow nasal oxygen
(Optiflow; Fisher & Paykel, Auckland, New Zealand)
humidified high flow nasal oxygen
Active Comparator: Nasal prongs
humidified high flow nasal oxygen

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
drop in oxygen saturation during procedure
Time Frame: through procedure completion defined as withdrawing scope from patient's mouth, an average of 30 minutes
the difference in oxygen saturation levels between pre-treatment assessments and the lowest saturation level achieved during treatment
through procedure completion defined as withdrawing scope from patient's mouth, an average of 30 minutes

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
change in venous CO2
Time Frame: 1 hour after procedure
Change in venous CO2 1 hour after procedure compared to pre-procedure level
1 hour after procedure
end tidal CO2 during procedure
Time Frame: through procedure completion defined as withdrawing scope from patient's mouth an average of 30 minutes
Measured with tip of scope at lower trachea
through procedure completion defined as withdrawing scope from patient's mouth an average of 30 minutes
Patient experience measure on a visual analogue scale
Time Frame: up to 3 hours after procedure
up to 3 hours after procedure
endotracheal intubation during or post procedure
Time Frame: 24 hours
24 hours

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Chair: David Breen, University Hospital Galway

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

October 1, 2016

Primary Completion (Actual)

April 1, 2018

Study Completion (Actual)

April 1, 2018

Study Registration Dates

First Submitted

March 14, 2017

First Submitted That Met QC Criteria

July 20, 2017

First Posted (Actual)

July 24, 2017

Study Record Updates

Last Update Posted (Actual)

May 2, 2018

Last Update Submitted That Met QC Criteria

April 30, 2018

Last Verified

April 1, 2018

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 1.0

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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