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Sleep Apnea, ObstructiveNCT00874822

Prevalence of Sleep Apnea in Patients Presenting for Hip or Knee Replacement Surgery

An observational study of Sleep Apnea, Obstructive, run by University of Nebraska at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The study hypothesis is that the prevalence of obstructive sleep apnea in patients presenting for total knee or total hip arthroplasty is higher than generally suspected. The study will include just one arm and results will be compared to a literature control group. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Sleep Apnea, Obstructive
How many people
216 participants
Where
1 siteUnited States
Study dates
26 May 2009to 11 Apr 2012
Phase
Observational
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Subjects are all patients referred to an academic internal medicicine preoperative evaluation clinic prior to hip or knee arthroplasty.

Who may be able to join

  • 18 years old and older
  • Planned total hip or total knee arthroplasty
  • Referral to the internal medicine preoperative evaluation clinic

Who cannot join

  • None

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University of Nebraska Medical Center

    Omaha, Nebraska, 68198-3331

Other trials in United States

About this study

The study hypothesis is that the prevalence of obstructive sleep apnea in patients presenting for total knee or total hip arthroplasty is higher than generally suspected. The study will include just one arm and results will be compared to a literature control group. Participants referred for preoperative evaluation will be screened using a standard questionnaire. Those at high risk of obstructive sleep apnea will then undergo a formal overnight sleep study (polysomnography).

Read the detailed description

The study hypothesis is that the prevalence of obstructive sleep apnea in patients presenting for total knee or total hip arthroplasty is higher than generally suspected. The study will include just one arm and results will be compared to a literature control group, a study performed by Harrison et al. and published in the December 2003 issue of The Journal of Arthroplasty. Participants referred for preoperative evaluation will be screened using a standard questionnaire. Those at high risk of obstructive sleep apnea will then undergo a formal overnight sleep study (polysomnography). The Berlin questionnaire is being used for screening.

Medical subject headings
Sleep Apnea, Obstructive

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT00874822
Study groupRoleWhat they receive
BerlinPatients diagnosed with obstructive sleep apnea by polysomnography after being screened with the Berlin questionnaire.

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Obstructive Sleep Apnea

    The number patients with obstructive sleep apnea whether newly diagnosed or known at study entry.

    Measured: 9 Months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Apr 2009 (estimated)
  2. Study start26 May 2009
  3. Primary completion11 Apr 2012
  4. Study completion11 Apr 2012

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Other
Time perspective
Retrospective
Enrolment
216 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00874822
Sponsor's protocol ID
0212-09-EP
Status last verified
Aug 2023
First submitted
26 Mar 2009
Last updated
18 Sep 2023
Data monitoring committee
No

Publications

  • Kaw R, Michota F, Jaffer A, Ghamande S, Auckley D, Golish J. Unrecognized sleep apnea in the surgical patient: implications for the perioperative setting. Chest. 2006 Jan;129(1):198-205. doi: 10.1378/chest.129.1.198.

    PubMed 16424433
  • Ancoli-Israel S, Kripke DF, Klauber MR, Mason WJ, Fell R, Kaplan O. Sleep-disordered breathing in community-dwelling elderly. Sleep. 1991 Dec;14(6):486-95. doi: 10.1093/sleep/14.6.486.

    PubMed 1798880
  • Young T, Evans L, Finn L, Palta M. Estimation of the clinically diagnosed proportion of sleep apnea syndrome in middle-aged men and women. Sleep. 1997 Sep;20(9):705-6. doi: 10.1093/sleep/20.9.705.

    PubMed 9406321
  • Gupta RM, Parvizi J, Hanssen AD, Gay PC. Postoperative complications in patients with obstructive sleep apnea syndrome undergoing hip or knee replacement: a case-control study. Mayo Clin Proc. 2001 Sep;76(9):897-905. doi: 10.4065/76.9.897.

    PubMed 11560300
  • Harrison MM, Childs A, Carson PE. Incidence of undiagnosed sleep apnea in patients scheduled for elective total joint arthroplasty. J Arthroplasty. 2003 Dec;18(8):1044-7. doi: 10.1016/s0883-5403(03)00459-5.

    PubMed 14658110

Questions about this trial

What is this clinical trial studying?

An observational study of Sleep Apnea, Obstructive, run by University of Nebraska at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 18 Sep 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 20 Jan 2012). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Obstructive Sleep Apnea (time frame: 9 Months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00874822, which also lists 5 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Sep 2023.

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