lead encephalopathy


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encephalopathy

 [en-sef″ah-lop´ah-the]
any degenerative disease of the brain.
AIDS encephalopathy HIV encephalopathy.
anoxic encephalopathy hypoxic encephalopathy.
biliary encephalopathy (bilirubin encephalopathy) kernicterus.
bovine spongiform encephalopathy a prion disease of adult cattle in the British Isles with neurologic symptoms. It is transmitted by feed containing protein in the form of meat and bone meal derived from infected animals. The etiologic agent is also the cause of new variant Creutzfeldt-Jakob disease. Called also mad cow disease.
boxer's encephalopathy (boxer's traumatic encephalopathy) a syndrome due to cumulative head blows absorbed in the boxing ring, characterized by slowing of mental function, occasional bouts of confusion, and scattered memory loss. It may progress to the more serious boxer's dementia. See also postconcussional syndrome.
dialysis encephalopathy a degenerative disease of the brain associated with longterm use of hemodialysis, marked by speech disorders and constant myoclonic jerks, progressing to global dementia.
hepatic encephalopathy a condition, usually occurring secondary to advanced liver disease, marked by disturbances of consciousness that may progress to deep coma (hepatic coma), psychiatric changes of varying degree, flapping tremor, and fetor hepaticus.
HIV encephalopathy (HIV-related encephalopathy) a progressive primary encephalopathy caused by infection with human immunodeficiency virus type I, manifested by a variety of cognitive, motor, and behavioral abnormalities. Called also AIDS encephalopathy.
hypernatremic encephalopathy a severe hemorrhagic encephalopathy induced by the hyperosmolarity accompanying hypernatremia and dehydration.
hypertensive encephalopathy a complex of cerebral phenomena such as headache, convulsions, and coma that occur in the course of malignant hypertension.
hypoxic encephalopathy encephalopathy caused by hypoxia from either decreased rate of blood flow or decreased oxygen content of arterial blood; mild cases cause temporary intellectual, visual, and motor disturbances, and severe cases can cause permanent brain damage within five minutes. Called also anoxic encephalopathy.
lead encephalopathy brain disease caused by lead poisoning.
mitochondrial encephalopathy encephalopathy associated with mitochondrial abnormalities, such as melas syndrome and merrf syndrome.
portal-systemic encephalopathy (portasystemic encephalopathy) hepatic encephalopathy.
progressive subcortical encephalopathy Schilder's disease.
subacute spongiform encephalopathy (transmissible spongiform encephalopathy) prion disease.
traumatic encephalopathy
Wernicke's encephalopathy a neurological disorder characterized by confusion, apathy, drowsiness, ataxia of gait, nystagmus, and ophthalmoplegia; it is due to thiamine deficiency, usually from chronic alcohol abuse. It is almost invariably accompanied by or followed by korsakoff's syndrome and frequently accompanied by other nutritional polyneuropathies. See also wernicke-korsakoff syndrome.

lead en·ceph·a·lop·a·thy

a metabolic encephalopathy, caused by the ingestion of lead compounds and seen particularly in early childhood; it is characterized pathologically by extensive cerebral edema, status spongiosus, neurocytolysis, and some reactive inflammation; clinical manifestations include convulsions, delirium, and hallucinations.
See also: lead poisoning.

lead encephalopathy

[led]
Etymology: AS, led + Gk, enkephalos, brain, pathos, disease
a condition of brain structure and function resulting from lead poisoning, including exposure to tetraethyl lead. Children are commonly afflicted after eating chips of lead-based paints. The untreated disorder is characterized by delirium, convulsions, mania, cortical blindness, and coma.

lead en·ceph·a·lop·a·thy

(led en-sef'a-lop'ă-thē)
A metabolic cerebral disorder, caused by the ingestion of lead compounds and seen particularly in early childhood; it is characterized pathologically by extensive cerebral edema, status spongiosus, neurocytolysis, and some reactive inflammation; clinical manifestations include convulsions, delirium, and hallucinations.
See also: lead poisoning

lead encephalopathy

Degeneration of brain nerve cells and fluid collection in the brain (cerebral oedema), due to acute lead poisoning.

lead en·ceph·a·lop·a·thy

, lead encephalitis (led en-sef'a-lop'ă-thē, en-sef'ă-lī'tis)
Metabolic encephalopathy, caused by the ingestion of lead compounds; seen particularly in early childhood; characterized pathologically by extensive cerebral edema, status spongiosus, and neurocytolysis; clinical manifestations include convulsions, delirium, and hallucinations.

encephalopathy

any degenerative disease of the brain.

biliary encephalopathy, bilirubin encephalopathy
kernicterus.
feline ischemic encephalopathy
an acute, ischemic cerebral necrosis causing various degrees of cerebral dysfunction including depression, ataxia, circling, behavioral changes, blindness and seizures.
hepatic encephalopathy
severe hepatic insufficiency may induce a syndrome of excitability, tremor, compulsive walking, head pressing, and apparent blindness, followed by coma and convulsions, a dummy syndrome. The probable pathogenesis of this hepatic encephalopathy is the accumulation of ammonia, because of the failure of the liver to metabolize it, and the development of a spongy degeneration of the brain as a direct result of the hyperammonemia. A similar pathogenesis is hypothesized for the genesis of a cerebrotoxicant in companion animals with congenital defects in hepatic vasculature. See also portacaval shunt, hepatitis.
hypernatremic encephalopathy
a severe hemorrhagic encephalopathy induced by the hyperosmolarity accompanying hypernatremia and dehydration.
lead encephalopathy
brain disease caused by lead poisoning.
encephalopathy-microphthalmia syndrome
an inherited disorder in hereford cattle with ocular and neurological defects and muscular dystrophy. Affected calves are blind and unable to stand.
portosystemic encephalopathy
hepatic encephalopathy.
transmissible mink encephalopathy
transmissible disease of mink which resembles scrapie in sheep. There is a very long incubation period, hyperirritability, biting, paralysis, coma and death. The scrapie agent is believed to be the cause.