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High Flow Nasal OXygen Therapy in High Risk Patients of Hypoxia Undergoing Diagnostic BRONCHOscopy (HFNOT)

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ClinicalTrials.gov Identifier: NCT01650974
Recruitment Status : Completed
First Posted : July 26, 2012
Last Update Posted : April 19, 2019
Sponsor:
Information provided by (Responsible Party):
Young-Jae Cho, Seoul National University Bundang Hospital

Study Description
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Brief Summary:
The purpose of this study is to determine the efficacy and safety of nasal high flow oxygen therapy during diagnostic bronchoscopy.

Condition or disease Intervention/treatment Phase
Hypoxia Device: HFNOT Not Applicable

Detailed Description:
Hypoxemia is frequently seen during diagnostic bronchoscopy. Nasal prong or other existing oxygen supply methods are often difficult to maintain adequate oxygenation during bronchoscopy. In particular, bronchoscopy to patients already showing hypoxemia can be dangerous even though applying conventional oxygen therapy. Thus, we want to elucidate the usefulness of nasal high flow oxygen therapy to hypoxemic patients undergoing diagnostic bronchoscopy.
Study Design
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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 136 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple (Participant, Care Provider, Investigator)
Primary Purpose: Supportive Care
Official Title: High Flow Nasal OXygen Therapy in High Risk Patients of Hypoxia Undergoing Diagnostic BRONCHOscopy: A Prospective, Randomized, Controlled Study
Study Start Date : July 2012
Actual Primary Completion Date : November 2017
Actual Study Completion Date : November 2017

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Oxygen Therapy

Arms and Interventions
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Arm Intervention/treatment
No Intervention: conventional oxygen therapy
conventional nasal prong with FiO2 ~0.4
Experimental: HFNOT
high flow nasal oxygen therapy with starting FiO2 0.4 and Flow 40 L/min
 Device: HFNOT
high flow nasal oxygen therapy
Other Name: high flow nasal oxygen therapy(OPTIFLOW)
Sham Comparator: sham-HFNOT
same device with FiO2 ~0.4, NO high flow
 Device: HFNOT
high flow nasal oxygen therapy
Other Name: high flow nasal oxygen therapy(OPTIFLOW)


Outcome Measures
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Primary Outcome Measures :
  1. Success rate of bronchoscopy [ Time Frame: 1 day ]

    Success is defined as completion of planned diagnostic procedure with the oxygen saturation or partial pressure of oxygen in arterial blood was similar to the level of before the procedure.

    Failure is defined as incompletion of planned diagnostic procedure due to sustained hypoxemia or else.

    Furthermore failure is defined as hypoxemia(SaO2 <88%) was developed more than 2 times even though planned procedure was completed.


  2. Total duration of hypoxia [ Time Frame: 1 day ]
    total duration of hypoxia(oxygen saturation ≤88%) during procedure or after procedure.


Secondary Outcome Measures :
  1. frequency of hypoxia [ Time Frame: 1 day ]
    frequency of hypoxia(oxygen saturation ≤88%) during procedure or after procedure.

  2. switch to oxygen therapy method [ Time Frame: 1 day ]
    Increase oxygen apply or change of oxygen therapy method to high flow system.

  3. change of respiratory symptoms [ Time Frame: 1 day ]
    scoring of dyspnea symptoms, patients comfort.


Eligibility Criteria
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Ages Eligible for Study:   19 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria: 1 or 2

  1. PaO2 < 60 mmHg on ABGA or SpO2 < 90 % in room air AND SpO2 ≥ 95% or PaO2 ≥ 75mmHg in low flow oxygen therapy
  2. Planning to diagnostic bronchoscopic procedure (e.g. bronchial washing, BAL, bronchoscopic biopsy, EBUS-TBNA etc.)

Exclusion Criteria:

  1. patients who did not agree to provide information
  2. patients requiring for emergent intubation
  3. patients can not wear or be already applied high flow nasal oxygen therapy
  4. patients with unstable vital sign(e.g. severe hypotension, uncontrolled arrhythmia, etc.)
  5. patients with multiple organ failures
  6. patients with plan to therapeutic bronchoscopic procedure(e.g. intervention)
Contacts and Locations
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Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01650974


Locations
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Korea, Republic of
Seoul National University Bundang Hospital
Seongnam, Gyeonggi-do, Korea, Republic of, 463-707
Sponsors and Collaborators
Seoul National University Hospital
Investigators
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Principal Investigator: Young-Jae Cho, MD, MPH Seoul National University Bundang Hospital
More Information
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Responsible Party: Young-Jae Cho, Seoul National University Bundang Hospital
ClinicalTrials.gov Identifier: NCT01650974    
Other Study ID Numbers: E-1205-154-002
H-1206-074-414 ( Other Identifier: Seoul National University Hospital )
First Posted: July 26, 2012    Key Record Dates
Last Update Posted: April 19, 2019
Last Verified: April 2019
Keywords provided by Young-Jae Cho, Seoul National University Bundang Hospital:
high flow nasal oxygen therapy
diagnostic bronchoscopy
Additional relevant MeSH terms:
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Hypoxia
Signs and Symptoms, Respiratory