Obstructive Sleep Apnea and Bronchoscopy

December 10, 2019 updated by: Jinwoo Lee, Seoul National University Hospital

Screening for Obstructive Sleep Apnea Predicts Cardiopulmonary Events in Patients Undergoing Bronchoscopy

The prevalence of sleep-disordered breathing in Republic of Korea is 27% and 16% in men and women aged 40-69 years. Up to 93% of women and 82% of men with obstructive sleep apnea (OSA) remain undiagnosed. Polysomnography, the gold standard, is time consuming and costly. Patients with undiagnosed OSA may experience obstructive episodes during procedures with conscious sedation.

STOP-Bang questionnaire is the validated questionnaire to screen patients for undiagnosed OSA in the preoperative setting. It has high sensitivity (92.9%) for predicting patients with moderate to severe OSA.

Previous studies reported that STOP-Bang questionnaire predicted cardiopulmonary events during advanced endoscopic procedures such as endoscopic retrograde cholangiopancreatography (ERCP) and endoscopic ultrasound. However, there have been no studies regarding the risk for sedation-related cardiopulmonary events in patients with undiagnosed OSA undergoing bronchoscopy. Thus, we aimed to evaluate the prevalence of high-risk patients for OSA by a screening questionnaire, and to determine whether the questionnaire could predict patients who are at risk for cardiopulmonary events during bronchoscopy with conscious sedation.

Study Overview

Status

Completed

Conditions

Study Type

Observational

Enrollment (Actual)

546

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

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 99 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Tertiary referral hospital

Description

Inclusion Criteria:

  • Patients who are18 years or order undergoing bronchoscopy with conscious sedation in the bronchoscopy center

Exclusion Criteria:

  • Previous diagnosis of OSA
  • American Society of Anesthesiologists Physical Status Classification System score > 3
  • Baseline SpO2 < 90% or need for supplemental oxygen before the procedure
  • Tracheostomy tubes
  • An inability to provide informed consent
  • Undergoing the procedure based on an outpatient clinic
  • Undergoing BAL, EBUS-TBNA, and interventional bronchoscopy
  • Allergies or sensitivities to sedative medications
  • Pregnant

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

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Cardiopulmonary events
Time Frame: Any time during bronchoscopy under conscious sedation (procedure)
Hypoxemia (SpO2 < 90%) or Hypotension (SBP < 90 mm Hg or a decrease of more than 25% from the baseline)
Any time during bronchoscopy under conscious sedation (procedure)

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Airway maneuvers
Time Frame: Any time during bronchoscopy under conscious sedation (procedure)
Chin lift or Bag-mask ventilation or Unplanned endotracheal intubation
Any time during bronchoscopy under conscious sedation (procedure)

Collaborators and Investigators

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

Sponsor

Seoul National University Hospital

Investigators

  • Principal Investigator: Jinwoo Lee, MD, Seoul National University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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)

December 27, 2016

Primary Completion (Actual)

September 21, 2018

Study Completion (Actual)

December 27, 2018

Study Registration Dates

First Submitted

October 25, 2017

First Submitted That Met QC Criteria

October 27, 2017

First Posted (Actual)

October 30, 2017

Study Record Updates

Last Update Posted (Actual)

December 12, 2019

Last Update Submitted That Met QC Criteria

December 10, 2019

Last Verified

December 1, 2019

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 1612041813

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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