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NCT05387122

The Effect of Mandibular Advancement Devices on Markers of Cardiovascular Health in Obstructive Sleep Apnea Patients

Completed Last updated 19 September 2024
What this trial tests

trial testing mandibular advancement device (MAD) in Obstructive Sleep Apnea in 4 participants. Completed in 9 September 2024.

Timeline
11 July 2021
Primary endpoint
9 September 2024
9 September 2024

Quick facts

Lead sponsorUniversity of Alberta
StatusCompleted
Study typeOBSERVATIONAL
Enrollment4
Start date11 July 2021
Primary completion9 September 2024
Estimated completion9 September 2024
Sites1 location across Canada

Drugs / interventions tested

Conditions studied

Sponsor

University of Alberta

Who can join

Adults 18 to 70, any sex, with Obstructive Sleep Apnea. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Obstructive sleep apnea (OSA) is a type of disordered breathing defined by the repetitive obstruction of airflow during sleep due to upper airway collapse. Each obstructive event contributes to decreased blood oxygen, or hypoxia. OSA has been associated with various cardiovascular diseases, including hypertension, stroke, heart failure, and coronary artery disease. A factor in this association may be the decrease in blood vessel health and the marked over activation of the sympathetic nervous system that is observed in OSA due to nighttime hypoxia. The sympathetic nervous system is responsible for maintaining heart and blood vessel (cardiovascular) balance. Elevated sympathetic nervous activity (SNA) is a likely cause of hypertension and subsequent cardiovascular disease. Continuous positive airway pressure (CPAP) therapy is the most accepted treatment for OSA and has been shown to improve high blood pressure and SNA in patients. An alternative therapy for OSA is a type of removable oral appliance known as a mandibular advancement device (MAD). Currently, there is no research directly measuring SNA in OSA patients using MADs. In addition to other cardiovascular markers, the investigators would like to directly assess SNA during a MAD intervention using the gold standard technique of microneurography. The investigators believe this will provide important information for the management of OSA, as levels of SNA are known to respond to both acute and chronic levels of hypoxia. Improved heart and blood vessel markers could further support MAD use, providing an important alternative therapy for those that can not tolerate CPAP.

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.

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Other recruiting trials for Obstructive Sleep Apnea

Currently open trials in the same condition.

Other University of Alberta trials

Trials by the same sponsor.

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Data sources for this page

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