The purpose of this study is to assess the site, pattern and degree of upper airway collapse before and during hypoglossal nerve stimulation (HNS) treatment using clinical standard drug-induced sleep endoscopy (DISE) and using a novel, non-invasive method predicting site of collapse from raw polysomnography (PSG) data.
Furthermore, outcomes will be compared between responders and non-responders.
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Eligibility Criteria
Inclusion Criteria:
* 18 years or older.
* Eligible for HNS-therapy:
* AHI between 15 and 65 events/hour
* BMI under 32 kg/m2
* Absence of complete concentric collapse of palate (CCC) on DISE
* Intolerance or failure of continuous positive airway pressure (CPAP)-treatment
* Intolerance or failure o…
Inclusion Criteria:
* 18 years or older.
* Eligible for HNS-therapy:
* AHI between 15 and 65 events/hour
* BMI under 32 kg/m2
* Absence of complete concentric collapse of palate (CCC) on DISE
* Intolerance or failure of continuous positive airway pressure (CPAP)-treatment
* Intolerance or failure of mandibular advancement device (MAD)-treatment
* Combination of central and mixed apneas less than 25% of total apneas on recent PSG (not older than two years)
* Scheduled for HNS-implantation at the Antwerp University Hospital
* Capable of giving informed consent
* Baseline polysomnography planned or performed in the last 2 years at the Antwerp University Hospital
Exclusion Criteria:
* Patients will not receive HNS-therapy at the Antwerp University Hospital
* Known medical history of intellectual disability, memory disorders or current psychiatric disorders (psychotic illness, major depression, or acute anxiety attacks as mentioned by the patient).
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