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Obstructive Sleep Apnea, Retinal Vein Occlusion, Retinal Artery Occlusion

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01291862
Recruitment Status : Unknown
Verified January 2012 by Yonsei University.
Recruitment status was:  Recruiting
First Posted : February 9, 2011
Last Update Posted : February 2, 2012
Information provided by (Responsible Party):
Yonsei University

Brief Summary:
Obstructive sleep apnea is a common disorder linked to serious long-term adverse health consequences; such as hypertension, metabolic dysfunction, cardiovascular disease. Retinal vascular occlusion is related to many systemic illnesses especially hypertension. Obstructive sleep apnea is also related to vascular endothelial dysfunction and vascular endothelial growth factor elevation which causes vision threatening complications of retinal vascular occlusion. Therefore the relationship between obstructive sleep apnea and retinal vascular occlusion should be studied.

Condition or disease Intervention/treatment Phase
Retinal Vascular Occlusion Device: Watchpat 100 Not Applicable

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 30 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Official Title: Obstructive Sleep Apnea, Retinal Vein Occlusion, Retinal Artery Occlusion
Study Start Date : June 2010
Estimated Primary Completion Date : June 2012
Estimated Study Completion Date : June 2012

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Sleep Apnea

Intervention Details:
  • Device: Watchpat 100
    Watchpat 100 is a noninvasive portable sleep monitoring device which monitors peripheral arterial tone, pulse, oxygen saturation, snoring, and body position. Patient places one probe at his or her finger and another sensor at front of the chest and Watchpat 100 monitors the patient overnight.
    Other Name: Watch-PAT™ 100

Primary Outcome Measures :
  1. Watchpat-100(noninvasive portable sleep monitoring device) [ Time Frame: after finishing the tests with Watchpat-100 ]
    Result Data of Watchpat-100 : apnea-hypopnea index(AHI)

  2. Berlin questionnaire [ Time Frame: after finishing the Berlin questionnaire ]
    Incidence of patients at risk for obstructive sleep apnea according to the Berlin questionnaire

  3. Epworth sleepiness scale [ Time Frame: after finishing the Epworth sleepiness sclae ]
    Incidence of patients with daytime sleepiness according to the Epworth sleepiness scale.

Information from the National Library of Medicine

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Ages Eligible for Study:   20 Years to 70 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Any patient who visits outpatient clinic and diagnosed as retinal vascular occlusion which occurred within recent 3 months

Exclusion Criteria:

  • Any ocular disease other than retinal vascular occlusion (for example: floppy eyelid syndrome, uveitis, glaucoma, other retinal diseases)
  • Patient who has difficulty answering the questionnaires or portable sleep monitoring
  • Patient who refuses the study enroll

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 identifier (NCT number): NCT01291862

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Korea, Republic of
Severance Hospital Recruiting
Seoul, Korea, Republic of, 120-752
Contact: Won-Kyung Song, MD, Ph.D    82-2-2228-3570   
Sponsors and Collaborators
Yonsei University

Publications automatically indexed to this study by Identifier (NCT Number):
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Responsible Party: Yonsei University Identifier: NCT01291862    
Other Study ID Numbers: 1-2010-0008
First Posted: February 9, 2011    Key Record Dates
Last Update Posted: February 2, 2012
Last Verified: January 2012
Additional relevant MeSH terms:
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Sleep Apnea, Obstructive
Retinal Vein Occlusion
Retinal Artery Occlusion
Sleep Apnea Syndromes
Respiration Disorders
Respiratory Tract Diseases
Sleep Disorders, Intrinsic
Sleep Wake Disorders
Nervous System Diseases
Retinal Diseases
Eye Diseases
Venous Thrombosis
Embolism and Thrombosis
Vascular Diseases
Cardiovascular Diseases
Arterial Occlusive Diseases