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| Name | Class |
|---|---|
| Brigham and Women's Hospital | OTHER |
| Harvard Medical School (HMS and HSDM) | OTHER |
| Universiteit Antwerpen | OTHER |
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OBJECTIVES
To train and test a mathematical model to predict complete concentric collapse at the level of the palate (CCCp, primary) and other sites of upper airway collapse (secondary) during drug-induced sleep endoscopy (DISE) using the data captured during a diagnostic polysomnography (PSG).
HYPOTHESIS
The site, pattern and degree of upper airway collapse is associated with distinct flow features as captured during a baseline PSG.
STUDY DESIGN
Retrospective trial.
STUDY POPULATION
200 patients with moderate to severe obstructive sleep apnea (OSA, AHI ≥ 15/h) who underwent both a DISE and a diagnostic PSG at the Antwerp University Hospital (UZA) between January 2018 and December 2020.
OUTCOME MEASURES:
Raw data as captured during a diagnostic PSG, including electroencephalography (EEG), flow, electrocardiography (ECG), electromyography (EMG), oxygen desaturation and breathing effort.
SAMPLE SIZE / DATA ANALYSIS
Data of 200 patients will be retrospectively included into this study protocol. Different machine learning techniques will be adopted to select features, train the model and test the model.
TIME SCHEDULE
January 30, 2021 - November 30, 2021
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| Measure | Description | Time Frame |
|---|---|---|
| Airflow [l/s] | The primary outcome of this study is the effect of DISE site, degree and pattern of collapse on the airflow [l/s] as measured during the baseline polysomnography | Retrospective, measured during the baseline polysomnography study |
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Inclusion Criteria:
Exclusion Criteria:
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Patients with moderate to severe OSA who underwent polysomnography and DISE at UZA in the last 3 years.
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| UZA | Edegem | Antwerp | 2650 | Belgium |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 40439552 | Derived | Op de Beeck S, Vena D, Van de Perck E, Mann D, Azarbarzin A, Alex RM, Dieltjens M, Willemen M, Verbraecken J, Wellman A, Sands SA, Vanderveken OM. Site of Collapse during Drug-induced Sleep Endoscopy Is Associated with Polysomnographic Endotypic Traits: An Observational Study. Ann Am Thorac Soc. 2025 Oct;22(10):1567-1578. doi: 10.1513/AnnalsATS.202408-871OC. |
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| ID | Term |
|---|---|
| D020181 | Sleep Apnea, Obstructive |
| ID | Term |
|---|---|
| D012891 | Sleep Apnea Syndromes |
| D001049 | Apnea |
| D012120 | Respiration Disorders |
| D012140 | Respiratory Tract Diseases |
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| D020919 |
| Sleep Disorders, Intrinsic |
| D020920 | Dyssomnias |
| D012893 | Sleep Wake Disorders |
| D009422 | Nervous System Diseases |