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Disorders of Language, Speech and Swallowing

Condition: Disorders of language, speech, and swallowing include aphasia, which is disturbance of language skills as the result of brain damage; apraxia of speech, which is a disorder of movements involved in speaking; dysarthria, which includes difficulty in pronouncing words due to muscle paralysis or weakness; and dysphagia, which is a swallowing disorder that makes eating solid foods difficult.

Background: Communication disorders affect 14 million people in the United States and are most commonly associated with stroke. A swallowing disorder is estimated to occur in 60% of long-term health care facility residents and 30% of general medicine inpatients.

Risk Factors: Language, speech, and swallowing disorders are commonly diagnosed in people with stroke, brain injury, lack of oxygen, tumors, birth defects, degenerative neurological diseases, and developmental problems.

History and Symptoms: Symptoms will depend on the underlying causes of the disorder. Patients with language disorders (aphasia) may have trouble speaking, understanding spoken language, reading, or writing, depending on the brain region that is affected. Patients with speech disorders (apraxia of speech or dysarthria) may have slow speech, difficulty pronouncing words or sounds, speech errors, choppy speech, mumbling, or alterations in voice. Patients with swallowing disorders (dysphagia) may have difficulty swallowing, coughing during or after eating, poor nutrition or dehydration, or trouble with food or liquids in the mouth.

Physical Exam: A physical exam will be performed in conjunction with formal speech and language assessment tools to identify specific difficulties with speech, comprehension, reading, writing, pronunciation, control of the voice box, breath during speech, and production of different sounds. For swallowing disorders, evaluation of sensation in the mouth; movement of the face, lips, and tongue; ability to follow directions; saliva management; and actual swallowing will be performed.

Diagnostic Process: For swallowing disorders, swallow studies will evaluate the process by X-ray or using a small scope inserted into the throat. A variety of assessment tools have been developed for diagnosis of the specifics of these language, speech, and swallowing disorders.

Rehab Management: Disorders of language, speech and swallowing that result from stroke, trauma, and lack of oxygen typically improve over time, while progressive disorders result in variable improvements depending on treatment and the specifics of the underlying problem. Speech-language therapy is used to maximize communication skills. Some medications may be helpful in treating language disorders (aphasia). For motor problems (dysarthria), therapy focuses on development of strength and coordination of muscles used in speech. Communication devices may be used to assist patients who cannot be understood. Therapy for swallowing disorders includes strategies for reducing the risk of choking and aspirating food into the lungs, improving positioning for eating, exercises to improve swallowing, and thickening liquids or changing textures of solids. Feeding tubes may be necessary if swallowing disorders prevent proper hydration or nutrition.

Other Resources for Patients and Families: Together with doctors, speech-language pathologists will likely participate in the rehabilitation of patients with language, speech, or swallowing disorders

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