The Performance of Two Oxygen Delivery Devices Used After General Anesthesia.

November 7, 2016 updated by: Mahidol University

The Performance Comparison of Two Oxygen Delivery Devices [Nasal Cannula and Mask] Used After General Anesthesia.

After general anesthesia, there are the risks for airway obstruction, hypoventilation, atelectasis, ventilation-perfusion mismatch, hypercarbia and hypoxemia,so oxygen supplement in PACU seems necessary.

This study aim is to compare the two methods of oxygen supplement which are 1.nasal cannula at O2 flow 4 L/min. 2.oxygen mask with O2 flow 5 L/min. The hypothesis in this study is the 2 methods can equally provide effective oxygen supplement to prevent anesthesia-related hypoxemia. Choosing nasal cannula would be reasonable because it is cheaper and more comfortable to patient.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

The incidence and causes of hypoxemia in PACU will be identified, if necessary, a higher flow or changing oxygen delivery system can be used to prevent and treat hypoxemia. If any patients fail from oxygen weaning protocol in PACU and need longer oxygen therapy at ward, the duration of oxygen therapy will be recorded and also the compliance with oxygen delivery devices.

Study Type

Interventional

Enrollment (Actual)

500

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

  • Thailand
    • Bangkok
      • Bangkoknoi, Bangkok, Thailand, 10700
        • Siriraj Hospital

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 to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • General anesthesia
  • Age 18-70 years
  • American Society of Anesthesiology (ASA)physical status 1-3
  • Elective case

Exclusion Criteria:

  • ASA physical status class 4 or more
  • Unstable pulmonary diseases
  • BMI > 35 kg/m2
  • oxygen saturation < 94% when breathing in room air
  • Respiratory muscle weakness eg.myasthenia gravis
  • Central nervous system abnormalities eg.drowsiness, hypoventilation
  • Patients who have been intubated or needed ventilatory support before operation
  • Plan to remain intubated after the operation
  • Intracranial, intrathoracic and upper abdomen surgery
  • Patients who nasogastric tube is inserted
  • Airway problems eg. sinusitis
  • Nasal cavity related surgery or nasal packing eg. endoscopic sinus surgery
  • Patient refusal

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: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: oxygen mask
Oxygen mask with oxygen flow 5 L/min will be given to allocated post general anesthesia patients. The incidence and causes of hypoxemia will be recorded.
Device: oxygen mask
Other Names:
  • Oxygen mask or simple mask
Active Comparator: Oxygen cannula
Oxygen cannula with oxygen flow 4 L/min will be given to allocated post general anesthesia patients. The incidence and causes of hypoxemia will be recorded.
Device: oxygen cannula

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants With Hypoxemia in Both Groups
Time Frame: In PACU (1 hr after anesthesia)
Hypoxemia is defined as oxygen saturation < 94%. We record number of participants with hypoxemia in both groups
In PACU (1 hr after anesthesia)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The Causes of Hypoxemia
Time Frame: In PACU (1 hr after anesthesia)
Causes of hypoxemia in each participant in PACU will be recorded
In PACU (1 hr after anesthesia)

Collaborators and Investigators

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

Sponsor

Mahidol University

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

April 1, 2013

Primary Completion (Actual)

November 1, 2014

Study Completion (Actual)

December 1, 2014

Study Registration Dates

First Submitted

August 5, 2013

First Submitted That Met QC Criteria

August 5, 2013

First Posted (Estimate)

August 6, 2013

Study Record Updates

Last Update Posted (Estimate)

January 4, 2017

Last Update Submitted That Met QC Criteria

November 7, 2016

Last Verified

November 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 066/2556 (EC3)

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.

Clinical Trials on Hypoxemia

Clinical Trials on oxygen mask

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Algeria

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Subscribe