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Sleep Technology

AAST Blog

The latest on all issues affecting sleep technologists, including trends, insights, tips and more.

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OSA | Stroke

Obstructive Sleep Apnea and Stroke

By: Monica Roselli
February 11th, 2021

Ischemic stroke (or acute stroke) is the second leading cause of long-term disability. Many who suffer from ischemic stroke also have obstructive sleep apnea (OSA). Currently, ischemic stroke treatment therapies have a very limited therapeutic window and are not widely applicable to most patients. The treatment of OSA in patients with acute ischemic stroke is now being looked to as a novel, therapeutic approach to preventing stroke.

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OSA | facial scanning | 3D

Three-Dimensional Facial Scanning: A Screening Tool for Sleep Apnea

By: Regina Patrick, RPSGT
December 3rd, 2020

Scientists have long noted that a large neck circumference and retrognathia (i.e., receding chin) are risk factors for obstructive sleep apnea (OSA). The former can be determined with a simple tape measure. The latter can be measured on x-ray images (i.e., radiographs). Scientists have recently demonstrated that three-dimensional (3D) facial scanning may detect more subtle features of the head such as width and length of the lower jaw, width of the face, and distance between the eyes that could be used to identify people who may be at risk of sleep apnea. This technology could potentially be used to more accurately detect people who may be at risk of having OSA.

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obstructive sleep apnea | OSA | Stroke

Obstructive Sleep Apnea and Stroke

By: AAST Editor
August 27th, 2020

This blog is based off of the AAST 2019 Annual Meeting Session "Obstructive Sleep Apnea and Stroke: Evidence, Mechanisms, and Treatment Strategies." For more information on this session and other session recordings click here. Ischemic stroke (or acute stroke) is the second leading cause of long-term disability. Many who suffer from ischemic stroke also have obstructive sleep apnea (OSA). Currently, ischemic stroke treatment therapies have a very limited therapeutic window and aren’t widely applicable to most patients. The treatment of OSA in patients with acute ischemic stroke is now being looked to as a novel, therapeutic approach to preventing stroke.

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OSA | OSA and sense of smell

Possible Link Between Obstructive Sleep Apnea and the Sense of Smell

By: Regina Patrick, RPSGT, RST
August 7th, 2020

An overlooked symptom in people with obstructive sleep apnea (OSA) is olfactory dysfunction (i.e., impairment in the sense of smell) such as an inability to detect or distinguish between odors. A finding that the sense of smell improves soon after a person with OSA begins continuous positive airway pressure (CPAP) treatment corroborates a possible link between olfactory dysfunction and OSA.1,2

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OSA | snoring

Axonal Degeneration in Soft Palate Nerves May Contribute to Obstructive Sleep Apnea

By: Regina Patrick, RPSGT, RST
April 22nd, 2020

    Obstructive sleep apnea (OSA), the intermittent cessation of breathing during sleep, occurs when the upper airway tissues (e.g., tonsils, fatty tissue) repeatedly collapse into the upper airway and partially or fully block airflow. The collapsibility of the upper airway in people with OSA is believed to occur because the upper airway muscles relax excessively during sleep, which allows structures supported by the muscles to collapse into the upper airway.

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