The most common jot down of PAP gadget is a continuous positive airway pressure (CPAP) machine.
Adaptive servo-ventilation (ASV) machines are also used to treat sleep apnea with PAP therapy.
Learn more about the pros and cons of this treatment and its effectiveness.
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What Is ASV?
Adaptive servo-ventilationmachines offer a newer kind of PAP therapy than traditional CPAP machines.
People with sleep apnea experience apnea events, or pauses in breathing, throughout the night.
These breathing interruptions typically cause loud snoring, gasping, and choking.
They disrupt sleep and cause excessive daytime sleepiness.
ASV machines prevent apnea by monitoring a persons breathing.
They adjust automatically to deliver air pressure levels that fit the patients breathing patterns.
This helps stabilize airflow and improve blood oxygen levels during sleep.
As a result, some people with sleep apnea find ASV treatment more comfortable and easier to tolerate regularly.
This may make them more likely to use their equipment regularly, which is key to managing sleep apnea.
This led to concerns about the use of ASV treatment in sleep apnea patients with CHF.
ASV is contraindicated in patients with heart failure with reduced left ventricular ejection fraction.
Effectiveness
Research on the overall effectiveness of ASV machines is ongoing, but some results are promising.
The patients in this study did not respond well to CPAP treatment.
How Does ASV Differ From Other Treatment Options?
In many ways, ASV machines are similar to CPAP devices and other PAP treatments.
The most common kind of sleep apnea isobstructive sleep apnea(OSA).
OSA is due to partial or complete blockage of the upper airways.
Some people should not use an ASV machine.
Talk to your healthcare provider first if you have heart disease or congestive heart failure.
Summary
Sleep apnea is a medical condition that causes intermittent pauses in breathing throughout the night.
This can lead todaytime sleepinessand fatigue and potentially fatal medical complications like heart disease.
CPAP machines blow compressed air into the lungs during sleep at a single, continuous pressure level.
Frequently Asked Questions
Sleep apnea is typically treated with positive airway pressure (PAP) therapy.
Both ASV and CPAP machines are PAP devices.
They work by pumping compressed air into the lungs to keep the airways open during sleep.
There is currently no cure for sleep apnea.
However, sleep apnea symptoms can be managed effectively with treatment.
The first choice of treatment for most types of sleep apnea is positive airway pressure (PAP) therapy.
National Heart, Lung, and Blood Institute.Sleep apnea.
Harvard Medical School Division of Sleep Medicine.Understanding PAP.
American Sleep Apnea Association.Sleep apnea information for clinicians.
National Institute of Neurological Disorders and Stroke.Sleep apnea.
American Thoracic Society.What Is adaptive servo-ventilation (ASV)?
American Sleep Association.ASV machines.
“J Clin Sleep Med.
2014;10(6):637-643. doi:10.5664/jcsm.3788
Muza RT.Central sleep apnoea-a clinical review.J Thorac Dis.
2015;7(5):930-937. doi:10.3978/j.issn.2072-1439.2015.04.45
National Library of Medicine.Positive airway pressure treatment.
Wang J, Wang Y, Feng J, Chen BY, Cao J.Complex sleep apnea syndrome.Patient Prefer Adherence.
2013;7:633-641. doi:10.2147/PPA.S46626
Sleep Foundation.Sleep apnea.
