Specific " active ingredients " for therapeutic change were not identified .
PURPOSE A systematic review of behavioural intervention for the treatment of adults with muscle tension voice disorders ( MTVD ) .
Neurovegetative symptoms and complaints before and after voice therapy for nonorganic habitual dysphonia.
In a previous study , female patients in all age categories with a nonorganic dysphonia were found to report significantly more autonomic symptoms and complaints than healthy controls . This could not be confirmed for the male subgroup . The present study is to corroborate and nuance this observation by investigating larger groups , and to determine if , after voice therapy , the number of autonomic symptoms and complaints-particularly those ones that have no obvious relation to voice function-decreases . It is a prospect i ve study with a matched control group ; 184 patients with nonorganic dysphonia and 126 normal controls answered a question naire of 46 questions with 3 subsets and a consistency control . One hundred and one patients received functional voice therapy  and completed the question naire before and after treatment . A matched control group of 42 normal subjects also filled in the question naire two times , with an interval of about 6 months . Neurovegetative symptoms and complaints-voice related and not related-are reported in highly significant excess by patients ( especially but not exclusively females ) with habitual nonorganic voice disorder . After therapy , there is a highly significant reduction in the number of autonomic symptoms and complaints ( related or not related to voice ) , to such an extent that patients report on average no more general neurovegetative symptoms and complaints than healthy controls ( even less ) . The number of neurovegetative symptoms and complaints connected with voice function is also strongly reduced in patients after therapy , but remains in significant excess when compared with controls
Specific " active ingredients " for therapeutic change were not identified .
PURPOSE A systematic review of behavioural intervention for the treatment of adults with muscle tension voice disorders ( MTVD ) .