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IOP Fluctuations in Patients With Sleep Apnea With or Without Primary Open Angle Glaucoma Using Positive Airway Pressure

Sleep Apnea, Obstructive Clinical Trial

Official title:
A Prospective, Explorative, Open Label Study to Assess the 24-hour Intraocular Pressure Fluctuation Profile Recorded With SENSIMED Triggerfish® in Patients With Moderate to Severe Obstructive Sleep Apnea Syndrome Using Continuous Positive Airway Pressure With or Without Primary Open Angle Glaucoma

Clinical Trial Summary

Sleep apnea is characterized by repetitive episodes of decreased or interrupted airflow in the upper airways during sleep. Obstructive sleep apnea syndrome (OSAS) is the most common sleep-related breathing disorder and is characterized by repeated partial or complete upper airway collapse, gasping episodes, daytime sleepiness and fatigue. Once suspected, the diagnosis is made on the basis of anamnesis and a polysomnography (PSG) using the so-called respiratory disturbance index (RDI) to grade OSAS. Standard therapy consists of continuous positive airway pressure (CPAP) during sleep to prevent upper airway collapse. The association between OSAS and glaucoma has been extensively studied, although a few reports have been non-confirmatory. OSAS has been associated with reduced ocular blood flow, leading to hypoxia and hypercapnia, and as such, may represent a risk factor for glaucomatous optic neuropathy. OSAS has also been related to loss of nycthemeral rhythm of intraocular pressure (IOP). In addition, CPAP has been reported to increase IOP when used during nighttime.

The purpose of this study is to investigate how IOP varies in time, particularly during sleep in OSAS patients with or without glaucoma, and if the IOP variations are associated with the use of CPAP. IOP fluctuations will be monitored with SENSIMED Triggerfish®, a portable investigational device using a contact lens sensor that monitors the IOP fluctuation continuously over 24-hours.

Clinical Trial Description

n/a

Study Design

Endpoint Classification: Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Diagnostic

Related Conditions & MeSH terms

Clinical Trial Details
NCT number NCT01560975
Study type Interventional
Source Sensimed AG
Contact
Status Completed
Phase N/A
Start date March 2012
Completion date November 2012
View Details
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