Polysomnogrpahy Test Market Revenue, Opportunity, Forecast and Value Chain 201

Posted by sonali on December 1st, 2017

Polysomnography (PSG) is a multi-parameter test used to study sleep and sleeping patterns and used as a diagnostic tool in sleep medicines. The test is used to diagnose and treat several types of sleep disorders. The test results obtained are called a polysomnogram. The test puts forward complete recording of bio-physiological changes that transpire during sleep. The test is generally performed at night; however, some labs also accommodate shift workers and people with circadian rhythm sleep disorders and conduct the test during daytime. The PSG test monitors a number of body functions which include eye movements (through electro-oculography i.e.( EOG), skeletal muscle activation (through electromyography i.e. EMG), and heart rhythm during sleep. Interpretation of the test suggests results via scorer analyzers, which give points on the following parameters: leg movements, cardiac rhythm abnormalities, body position during sleep, saturation of oxygen during sleep, sleep efficiency, and stages with onset latency. The polysomnography test should be avoided until and unless a person shows clear signs for polysomnography (sleep study). These signs include obesity, sleep apnea, risky fullness of the flesh in the oropharynx, etc. Scientists suggest that this test should not be used regularly to screen for sleep disorders, specifically in the case of workers who complain of restlessness or fatigue. Men and women with obstructive sleep apnea (OSA) may show different symptoms and polysomnographic manifestations.

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