NCT02485236

Brief Summary

The study aims to compare the efficacy of Nasal High Flow Therapy (NHF) with low-flow oxygen supplementation in improving postoperative intermittent desaturations. If so, this mode of therapy would provide a cost effective, relatively easy to implement, and better tolerated treatment to Continuous Positive Airway Pressure (CPAP) for oxygen stabilization.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
50

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Jun 2015

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 1, 2015

Completed
8 days until next milestone

First Submitted

Initial submission to the registry

June 9, 2015

Completed
21 days until next milestone

First Posted

Study publicly available on registry

June 30, 2015

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 28, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 28, 2017

Completed
Last Updated

October 9, 2019

Status Verified

October 1, 2019

Enrollment Period

2 years

First QC Date

June 9, 2015

Last Update Submit

October 7, 2019

Conditions

Outcome Measures

Primary Outcomes (1)

  • The 4% change oxygen-desaturation index (4% ODI) determined by pulse oximetry

    The 4% change oxygen-desaturation index (4% ODI) as determined from the recorded pulse oximetry data during the first postoperative 48 hours.

    At 48 hours postsurgery

Secondary Outcomes (1)

  • Incidence rate of postoperative cardio-respiratory complications

    At 48 hours postsurgery

Study Arms (2)

Low flow oxygen via nasal cannula

ACTIVE COMPARATOR

In the low flow oxygen via nasal cannula, patients will be supplemented with 1 liter per minute via nasal cannula. Adjustment of initial setting upon floor arrival: To adjust oxygen 1-4 liters per minute to an arterial oxygen saturation of \> 88%. Continuous oximetry will be collected up to 48 hours. Standard postsurgical care.

Device: Low flow oxygen via nasal cannula

Humidified Nasal High Flow Therapy

ACTIVE COMPARATOR

Adjustment of humidified high flow air therapy: To adjust oxygen 1-4 liters per minute to an arterial oxygen saturation of \> 88%. To adjust air flow to patient comfort (20-35 liters per minute). Continuous oximetry will be collected up to 48 hours. Standard postsurgical care.

Device: Humidified Nasal High Flow Therapy

Interventions

In the low flow oxygen group, patients will be supplemented with 1 liter per minute via nasal cannula. Adjustment of initial setting upon floor arrival: To adjust oxygen 1-4 liters per minute to an arterial saturation of oxygen of \> 88%. Continuous oximetry will be collected up to 48 hours. Standard postsurgical care.

Low flow oxygen via nasal cannula

Adjustment of initial setting upon floor arrival: To adjust oxygen 1-4 liters per minute to arterial saturation of oxygen \> 88%. To adjust air flow to patient comfort (20-35 liters per minute). Continuous oximetry will be collected up to 48 hours. Standard postsurgical care.

Also known as: Airvo 2 from Fisher and Paykel
Humidified Nasal High Flow Therapy

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Known diagnosis of obstructive sleep apnea by polysomnography (Apnea Hypopnea Index ≥ 5 events per hour) with recommendation of Continuous Positive Airway Pressure use.
  • The patient declines use of Continuous Positive Airway Pressure for the upcoming elective surgery.
  • The patient will require more than 48 hours of hospitalization.
  • Informed consent obtained from patient or approved designate.

You may not qualify if:

  • Predetermined need for Continuous Positive Airway Pressure post-operatively by surgical team.
  • Body Mass Index ≥ 40.
  • Patient with congestive heart failure and diagnosis of Cheyne- Stokes respiration or central apnea.
  • Patients who are oxygen dependent due to moderate to severe Chronic Obstructive Pulmonary Disease (Available Forced Expiratory Volume at 1 second of \< 50% predicted) or advanced interstitial lung disease.
  • Preexisting chronic hypercapnia with known neuromuscular disease with respiratory involvement (e.g. Amyotrophic Lateral Sclerosis, myopathy).
  • Severe anemia necessitating blood transfusion.
  • Presence of tracheostomy.
  • Naso-oral malformation or severe nasal septal defect.
  • Presence of dementia or other diagnosed neurodegenerative disease.
  • Non-English speakers
  • Inability to provide informed consent.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Mayo Clinic in Rochester

Rochester, Minnesota, 55905, United States

Location

Related Links

MeSH Terms

Conditions

Sleep Apnea, Obstructive

Condition Hierarchy (Ancestors)

Sleep Apnea SyndromesApneaRespiration DisordersRespiratory Tract DiseasesSleep Disorders, IntrinsicDyssomniasSleep Wake DisordersNervous System Diseases

Study Officials

  • Bernardo J. Selim, MD

    Mayo Clinic

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
PI

Study Record Dates

First Submitted

June 9, 2015

First Posted

June 30, 2015

Study Start

June 1, 2015

Primary Completion

May 28, 2017

Study Completion

May 28, 2017

Last Updated

October 9, 2019

Record last verified: 2019-10

Data Sharing

IPD Sharing
Will not share

Locations