Assessment of the dysphonic patient

摘要: Dysphonia is usually the first and most obvious symptom of laryngeal disease, but may also occur in a variety disorders where vocal dysfunction secondary feature resulting from abnormality respiratory, nervous, endocrine, or psychological systems and, many cases, with no organic disease present. Most dysphonias short duration are simple inflammatory origin caused by viral or, less commonly, bacterial infection do not justify formal investigation assessment, main hoarseness persists for apparent reason, expert opinion must be sought without delay to exclude serious pathology permit its early treatment.