Dysmetria
Dysmetria is a condition characterized by the inability to control the range of movement in muscular activity. It is often associated with cerebellar ataxia and is a type of ataxia. Dysmetria is typically observed when a person attempts to touch a target object, such as their own nose or a physician's finger, and either overshoots (hypermetria) or undershoots (hypometria) the target.
Causes
Dysmetria is commonly caused by lesions in the cerebellum, the part of the brain responsible for coordinating voluntary movements. These lesions can result from various conditions, including:
Symptoms
The primary symptom of dysmetria is the inability to judge the distance or scale of a movement. This can manifest as:
- Difficulty in performing tasks that require precise movements, such as writing or buttoning a shirt.
- Unsteady gait and difficulty walking.
- Tremors or shaking when attempting to perform fine motor tasks.
Diagnosis
Diagnosis of dysmetria typically involves a neurological examination, which may include:
Imaging studies such as MRI or CT scan may be used to identify lesions in the cerebellum.
Treatment
There is no specific cure for dysmetria, but treatment focuses on managing symptoms and improving quality of life. Treatment options may include:
- Physical therapy to improve coordination and balance.
- Occupational therapy to assist with daily activities.
- Medications to manage underlying conditions, such as antispasticity drugs for multiple sclerosis.
Related Pages
See Also
WikiMD neurology
External links
- Comprehensive information from the National Institute of health.
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Contributors: Prab R. Tumpati, MD
