Chorea is one of the types of hyperkinesia, characterized by wide, fast, erratic movements. When trochaic happen spasmodic contraction different location and function of muscle groups. Hyperkinesis (see) increases with the unrest, disappears during sleep. Muscle tone with trochaic reduced. Morphologically detectable lesions in subcortical formations (striped body), gear nuclei of the cerebellum and its connections. Chorea may be a leading sign of diseases such as small Huntington, Huntington's chorea, and one of the symptoms of diseases of the brain - tumors, encephalitis and other Most common small chorea.
Small chorea (rheumatic chorea, infectious chorea, St. Vitus's dance). Etiological factor is rheumatism. For small horei characterized by diffuse changes in the big hemispheres, brain stem, bark, shells and especially in subcortical knots. Rheumatic brain lesions often occur socetannoe with heart damage. Get chorea more children aged 5-14 years. Disease can develop subacute with increasing temperature (37-38 degrees), catarrhal phenomena, in other cases, the temperature remains normal. The main symptom is hyperkinesis. First, there is an inaccuracy movements, disturbed coordination. The child begins to grimace, to loll out, frowning, to podergivani shoulders, bad writing (rough letters and lines). The child's behavior at first regarded as a prank, a bad habit. However, further develops the typical koreizskiy hyperkinesia, characterized by gaps, prevalence, localization as in the proximal and distal parts of the arms and legs, there hyperkinesis language. Sometimes there is hemichorea (hyperkinesis half of the body). Gait "perform a few steps"Bouncing. In the dream forced movements disappear completely. When excited, mental tension, hyperkinesia increase. Early symptom is also irritability, tearfulness, rapid exhaustion.
During examination of children with Korea, marked decrease in muscle tone, especially in those groups of muscles, where it is revealed hyperkinesis. Is characteristic symptom Gordon - in the induction of knee reflex foot freezes in position extension. Some children identified pathological reflexes, clonus stop, sensitivity disorders, pain syndromes. Speech may become slurred. Clearly expressed vegetative-vascular disorder, sweating, lability of pulse and blood pressure.
Chorea often develops simultaneously with rheumatic heart disease, joints, in some cases precedes them. In the study of blood found leukocytosis (up to 12 000-15 000) or lakopenia (to 3000-4000), acceleration ROHE (up to 12 -15 mm per hour). In the study of specific samples for rheumatism marked with a positive reaction.
There are inherent hyperkinesia, hypotension muscles, changes on the part of the autonomic nervous system, laboratory data allows you to make a correct diagnosis.
The Outlook for low trochaic favorable, with timely treatment of the hyperkinesia disappear within two or three weeks. Sometimes there can be a recurrence.
Trochaic pregnant on its clinical manifestations are not different from low horei. Develops chorea young women usually in the first half of pregnancy, often it is preceded by re angina; in some cases horei pregnant is a minor relapse horei; in its development are set neuroendocrine changes in pregnant. In most cases, using Antirheumatic therapy manage to keep the pregnancy. Hard place chorea is an indication for abortion, so sick woman should be referred to a consultation with a neurologist.
Huntington's chorea is a hereditary disease of the nervous system, the first signs of which more often observed between 25-50 years. Koreizskiy hyperkinesis has relatively slow pace, combined with a progressive decrease of intelligence, emotional instability patients. The prognosis is poor.
Treatment. Treatment of small horei should be carried out in the hospital. It is important to respect bed, careful patient care. Drug therapy includes antibiotics: penicillin, novotallin or economically, bicillin; salicylates: salicylic sodium, acetylsalicylic acid, amidopyrine, butadiene; hormone glucocorticoid number: cortisone and prednisone, appointed by the scheme; diphenhydramine, the preparations of calcium, vitamins, ascorbic acid, vitamins; heart funds. When trochaic Gentington assign rezerpin, at least - chlorpromazine. Physiotherapy: galvanic collar on Shcherbakov with calcium chloride, pine baths, electrosleep.
Prevention of low horei is sanation of oral cavity, nasopharynx, timely treatment of all forms of rheumatism, the hardening of children. When trochaic Gentington patients may be advised to refrain from procreation.

Chorea (from the Greek. choreia - dance) - a disease characterized by violent movements, which are inherent randomness, fast paced, rasmichoti, gaps, lack of stereotypes, the possibility of simultaneous reduction of various location and function of the muscles.
Chorea is one of the most frequent types of hyperkinesia (see). In a state of physical and mental rest koreizskiy hyperkinesis decreases during sleep disappears at various irritation, especially emotional, increases. Expressed koreizskiy hyperkinesis difficult arbitrary motion. They become impossible if the most severe forms of the disease. For horei typically reduced muscle tone. Occurs chorea for various types of lesions in the striatum corpus, gear nuclei of the cerebellum and the superior cerebellar legs. As with hyperkinesia other types, in the pathological process involved the reticular formation of the brain stem. Known special motologichesky delineated forms Horai (small chorea and Huntington's chorea). As a syndrome chorea is observed in various lesions of the brain (encephalitis, trauma, children's cerebral paralysis and others). On etiological grounds horey can differentiate on rheumatic and nonrheumatic.

Rheumatic chorea
Rheumatic chorea known in two versions: small chorea (in children) and trochaic pregnant.

Huntington's chorea - see Huntington chorea.