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Ataxia (from Greek α- [a negative prefix] + -τάξις [order] = "lack of order") is a neurological sign consisting of lack of voluntary coordination of muscle movements that can include gait abnormality, speech changes, and abnormalities in eye movements, that indicates dysfunction of parts of the nervous system that coordinate movement, such as the cerebellum.
An individual may experience BPPV when rolling over to the left or right, upon getting out of bed in the morning, or when looking up for an object on a high shelf. [4] The cause of BPPV is the presence of normal but misplaced calcium crystals called otoconia , which are normally found in the utricle and saccule (the otolith organs) and are used ...
Cardinal signs include vertigo, headache, vomiting, and ataxia. [2] Left sided cerebellar stroke due to occlusion of a vertebral artery. Cerebellar strokes account for only 2-3% of the 600,000 strokes that occur each year in the United States. [3] They are far less common than strokes which occur in the cerebral hemispheres.
Lightheadedness is a common and typically unpleasant sensation of dizziness [1] or a feeling that one may faint. The sensation of lightheadedness can be short-lived, prolonged, or, rarely, recurring. In addition to dizziness, the individual may feel as though their head is weightless.
This is followed by gently bringing the head back to the starting position. The examiner then quickly rotates the head 90° to the right side and checks again for vertigo and nystagmus. [24] In this roll test, the person may experience vertigo and nystagmus on both sides, but rotating toward the affected side will trigger a more intense vertigo.
Patients also display involuntary limb movements that occur at periodic intervals anywhere from 20 to 40 seconds apart. They often only last the first half of the night during non-REM sleep stages. Movements do not occur during REM because of muscle atonia. PLMS can be unilateral or bilateral and not really symmetrical or simultaneous. [6]
Symptoms of conversion disorder usually occur suddenly. Conversion disorder was typically observed in people ages 10 to 35, [7] affecting between 0.011% and 0.5% of the general population. [8] Conversion disorder presented motor or sensory symptoms including: Motor symptoms or deficits: Impaired coordination or balance
Other symptoms include hoarseness, nausea, vomiting, a decrease in sweating, problems with body temperature sensation, dizziness, difficulty walking, and difficulty maintaining balance. Lateral medullary syndrome can also cause bradycardia , a slow heart rate, and increases or decreases in the patient's average blood pressure.