| ARSACS | autosomal recessive spastic ataxia of Charlevoix-Saguenay |
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| AT | abdominal thrusts; achievement test; Achilles tendon; Achard-Thiers [syndrome]; adaptive thermogenes... |
| A-T | ataxia telangiectasia |
| CLA | cerebellar ataxia; Certified Laboratory Assistant; cervicolinguoaxial; contralateral local anesthesi... |
| COACH | cerebellar vermis hypoplasia/aplasia-oligophrenia-congenital ataxia-ocular colobomata-hepatic fibros... |
| Friedreich's ataxia | <neurology> An autosomal recessive inherited disorder that leads to the progressive dysfunction of the cerebellum, spinal cord and peripheral nerves. Symptoms usually begin in childhood before puberty and consist of an unsteady gait (ataxia), slurred speech (dysarthria) and jerky eye movements (nystagmus). Other findings include kyphoscoliosis, hammer toe, heart disease and high arches. Congestive heart failure is a common complication. There is no known treatment and prognosis is poor. Inheritance: autosomal recessive. (07 Apr 1998) |
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| Leyden's ataxia | A syndrome having the characteristics of tabetic neurosyphilis but not due to syphilis. Synonym: Leyden's ataxia, peripheral tabes, pseudoataxia. (05 Mar 2000) |
| locomotor ataxia | The severe gait ataxia seen with tabetic neurosyphylis. Patients walk with the feet wide apart, slapping them clumsily to the floor with each step, and depend on visual cues to maintain balance. See: tabetic neurosyphilis. (05 Mar 2000) |
| action tremor | <neurology> A tremor which arises or which is intensified when a voluntary, coordinated movement is attempted. (18 Nov 1997) |
| alcoholic withdrawal tremor | Intention tremor present in the withdrawal period of one of two types: 1) a tremor of greater than 8 Hz, with continuous antagonistic muscle activity, and 2) a tremor of less than 8 Hz, with intermittent spontaneous antagonistic muscle activity. (05 Mar 2000) |
| alternating tremor | A form of hyperkinesia characterised by regular, symmetrical, to-and-fro movements (at about 4 per second) that are produced by patterned, alternating contraction of muscles and their antagonists. (05 Mar 2000) |
| alternative tremor | A coarse, low frequency (3-8 Hz) pathologic tremor produced by alternating contraction of muscles and their antagonists; seen with Parkinson disease and kinetic predominant action tremor. (05 Mar 2000) |
| arsenical tremor | A tremor caused by chronic poisoning by arsenic. (05 Mar 2000) |
| ataxic tremor | <neurology> A tremor which arises or which is intensified when a voluntary, coordinated movement is attempted. (18 Nov 1997) |
| benign essential tremor | A benign tremor inherited as a dominant character; it may be a rapid oscillation resembling that seen in thyrotoxicosis, a coarse tremor during rest and inhibited by a voluntary effort, or one which appears only upon movement. Synonym: benign essential tremor, familial tremor. (05 Mar 2000) |
| passive tremor | A coarse, rhythmic tremor, 3-5 Hz frequency, usually confined to hands and forearms, that appears when the limbs are relaxed, and disappears with active limb movements; characteristic of Parkinson disease. Synonym: passive tremor. (05 Mar 2000) |
| volitional tremor | A tremor that can be arrested by a strong effort of the will. Synonym: intention tremor. (05 Mar 2000) |
| resting tremor | A coarse, rhythmic tremor, 3-5 Hz frequency, usually confined to hands and forearms, that appears when the limbs are relaxed, and disappears with active limb movements; characteristic of Parkinson disease. Synonym: passive tremor. (05 Mar 2000) |
| mercurial tremor | A tremor caused by chronic mercury poisoning. (05 Mar 2000) |
| metallic tremor | A tremor caused by poisoning with metal. (05 Mar 2000) |