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The ICARS has been validated for use in patients with focal cerebellar lesions [1] and hereditary spinocerebellar and Friedrich's ataxia. [2] [3] More recently, two shorter ataxia scales based upon the ICARS have been created and validated, the Scale for the Assessment and Rating of Ataxia (SARA) [4] and the Brief Ataxia Rating Scale (BARS). [5]
There are five typical autosomal-recessive disorders in which ataxia is a prominent feature: Friedreich ataxia, ataxia-telangiectasia, ataxia with vitamin E deficiency, ataxia with oculomotor apraxia (AOA), spastic ataxia. Disorder subdivisions: Friedreich's ataxia, spinocerebellar ataxia, ataxia telangiectasia, vasomotor ataxia ...
Friedreich's ataxia (FRDA) is a rare, inherited, autosomal recessive neurodegenerative disorder that primarily affects the nervous system, causing progressive damage to the spinal cord, peripheral nerves, and cerebellum, leading to impaired muscle coordination . The condition typically manifests in childhood or adolescence, with initial ...
Machado–Joseph disease (MJD), also known as Machado–Joseph Azorean disease, Machado's disease, Joseph's disease or spinocerebellar ataxia type 3 (SCA3), is a rare autosomal dominantly inherited neurodegenerative disease that causes progressive cerebellar ataxia, [1] [2] which results in a lack of muscle control and coordination of the upper and lower extremities. [3]
SCA2 (Spinocerebellar ataxia Type 2) ATXN2: 14 - 32: 33 - 77 SCA3 (Spinocerebellar ataxia Type 3 or Machado-Joseph disease) ATXN3: 12 - 40: 55 - 86 SCA6 (Spinocerebellar ataxia Type 6) CACNA1A: 4 - 18: 21 - 30 SCA7 (Spinocerebellar ataxia Type 7) ATXN7: 7 - 17: 38 - 120 SCA17 (Spinocerebellar ataxia Type 17) TBP: 25 - 42: 47 - 63
Spinocerebellar ataxia; Split-brain; Steele–Richardson–Olszewski syndrome – see Progressive supranuclear palsy; Stiff-person syndrome; Stroke; Sturge–Weber syndrome; Stuttering; Subacute sclerosing panencephalitis; Subcortical arteriosclerotic encephalopathy; Superficial siderosis; Sydenham's chorea; Syncope; Synesthesia; Syringomyelia ...
Persons who have been diagnosed with autosomal dominant spinocerebellar ataxia (SCAs) also exhibit dysmetria. [4] There are many types of SCAs and though many exhibit similar symptoms (one being dysmetria), they are considered to be heterogeneous. [4] Friedreich's ataxia is a relatively common cause of dysmetria. [5]
Cerebellar ataxia is a form of ataxia originating in the cerebellum. [1] Non-progressive congenital ataxia (NPCA) is a classical presentation of cerebral ataxias. Cerebellar ataxia can occur as a result of many diseases and may present with symptoms of an inability to coordinate balance, gait, extremity and eye movements. [ 2 ]