Obstructive sleep apnoea: Difference between revisions
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== Clinical |
== Clinical Manifestations == |
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* Can risk stratify using the [http://www.stopbang.ca/osa/screening.php STOP-Bang score for OSA] |
* Can risk stratify using the [http://www.stopbang.ca/osa/screening.php STOP-Bang score for OSA] |
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Revision as of 23:36, 19 July 2020
Definition
- Apnoea: cessation of breathing for 3+ second associated with a decrease in O2 by 3-4%
Etiology
Pathophysiology
Differential Diagnosis
Epidemiology
Risk Factors
- Overweight/obesity
- Male
Clinical Manifestations
- Can risk stratify using the STOP-Bang score for OSA
- History
- Loud snoring
- Witnessed apneic events while sleeping
- Signs & Symptoms
- Hypertension, bradyarrhytmias, atrial fibrillation, normal oxygenation (in general)
- Retrognathia
- Large neck
- Large soft palate
Investigations
- Labs
- Imaging
- Other
- Sleep study
- AHI (apnea-hypopnea index): number of apneic or hypopneic events per hour
- Normal: AHI<5
- Mild sleep apnea: 5≤AHI<15
- Moderate sleep apnea: 15≤AHI<30
- Severe sleep apnea: AHI≥30
- AHI (apnea-hypopnea index): number of apneic or hypopneic events per hour
- Sleep study
