Zh Nevrol Psikhiatr
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Zh Nevrol Psikhiatr · Jan 2016
Review[The etioiogy, pathophysiology and differential diagnosis of benign paroxysmal positional vertigo].
Benign paroxysmal positional vertigo (BPPV) is the most common peripheral vestibular disorder. The confirmation of BPPV is easy and based on a set of positioning tests. The authors present the recent data concerning the-etiology, pathophysiology a:nd the most effective positioning tests for the posterior, horizontal and anterior semicircular canals. The differential diagnosis of BPPV from other diseases, manifesting with positional vertigo, is discussed as well.
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To study the characteristics of nocturnal sleep and reveal breathing disorders during sleep in ALS patients using polysomnography. ⋯ An increased level of awaketime and a significant decrease in amount of deep sleep and REM sleep were revealed in ALS patients. Sleep breathing disorders are found significantly more often in ALS patients, mainly as alveolar hypoventilation syndrome and less frequently as obstructive sleep apnea. The lower level of mean and minimum blood oxygen saturation and increased respiratory rate were detected. These changes are possibly due to the presence of restrictive respiratory disorders. These disturbances reduce the total duration of sleep, destroy it's structure, exerting a direct influence on the life quality in ALS patients, disrupting their domestic and social activity, contributing to the development of neuropsychological and behavioral disorders.