The purpose of this study is to determine whether ambulatory polygraphy during a short hospitalization in a neurology unit has the same performance than inpatient polysomnography, the actual gold standard, in the diagnosis of sleep apnea in patients suffering from multiple system atrophy (MSA).
Age range
30 Years – 80 Years
Sex
ALL
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Assessment of the performance of ambulatory polygraphy in the diagnosis of sleep apnea in comparison to polysomnography. Sensitivity, specificity, positive and negative predictive values, positive and negative likelihood ratios will be calculated.
Timeframe: 1 month