[Quality of German-Language Guidelines for Post-Stroke Rehabilitation of Aphasia and Dysarthria - Results of a Systematic Review and of an International Comparison].

Aim: Evaluation of German-language guidelines for aphasia and dysarthria rehabilitation, and comparison with international guidelines.

Methods: The quality of the 6 included guidelines, as found through a comprehensive literature search, was sytematically evaluated using AGREE II. Quality ratings were compared to the results of a systematic review of 19 English-language guidelines.

Results: The quality of German-language guidelines was heterogeneous. In 2 out of 6 evaluation domains and in the overall assessment, no German-language guideline reached the cut-off of 66,67% for good guideline quality. Apart from the domain Editorial Independence, results remained behind those of the international reference guidelines.

Conclusion: In some cases, quality can be improved by simple means. It is more resource-intensive, but crucial to document search strategies and how evidence was used in guideline development. A harmonization of the German-language guidelines seems desirable.