Conclusion

As mentioned above, in several studies could be demonstrated neuropsychological and cognitive deficits in OSAS patients (Bedard et al. 1991, Naegele et al. 1995, Gresel et al. 1996, Engleman et al. 2000). This allowed finding inter alia differences between healthy subjects and OSAS patients in the assessment of cognitive processing speed and of performance speed (ZVT) (Cassel et al. 1989, Kotterba et al. 1997, Büttner et al. 2007). Also in the Benton test to record the performance of visual memory the OSAS patients showed - compared with healthy subjects - significantly worse results in the number of errors. None significant results were found for the number of correct reproductions. This may have resulted through the sample composition or sample size. On the other hand, it could be that the increased error number and the nearly normal number of correct responses is a criterion or a feature for the detection of neurocognitive deficits in OSAS patients (Büttner et al. 2007).

Conclusion

It can be said that OSAS patients differ from healthy individuals with respect to cognitive skills. These differences can be verified both the memory processes (Benton) and in cognitive processing speed and performance speed (ZVT). These impairments can have serious consequence, if or as long as they remain untreated.

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