senile dementia


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Related to senile dementia: presenile dementia, vascular dementia

dementia

 [dĕ-men´shah]
a general loss of cognitive abilities, including impairment of memory as well as one or more of the following: aphasia, apraxia, agnosia, or disturbed planning, organizing, and abstract thinking abilities. It does not include loss of intellectual functioning caused by clouding of consciousness (as in delirium), depression, or other functional mental disorder (pseudodementia). Causes include a large number of conditions, some reversible and some progressive, that result in widespread cerebral damage or dysfunction. The most common cause is Alzheimer's disease; others include cerebrovascular disease, central nervous system infection, brain trauma or tumors, vitamin deficiencies, anoxia, metabolic conditions, endocrine conditions, immune disorders, prion diseases, Wernicke-Korsakoff syndrome, normal-pressure hydrocephalus, Huntington's chorea, multiple sclerosis, and Parkinson's disease.
dementia of the Alzheimer type official name for alzheimer's disease.
Binswanger's dementia a progressive dementia of presenile onset due to demyelination of the subcortical white matter of the brain, with sclerotic changes in the blood vessels supplying it.
boxer's dementia a syndrome more serious than boxer's traumatic encephalopathy, the result of cumulative injuries to the brain in boxers; characterized by forgetfulness, slowness in thinking, dysarthric speech, and slow, uncertain movements, especially of the legs.
epileptic dementia a progressive mental and intellectual deterioration that occurs in a small fraction of cases of epilepsy; it is thought by some to be caused by degeneration of neurons resulting from circulatory disturbances during seizures.
multi-infarct dementia vascular d.
paralytic dementia (dementia paraly´tica) general paresis.
dementia prae´cox (obs.) schizophrenia.
presenile dementia name given to dementia of the Alzheimer type when it occurs in persons younger than age 65.
senile dementia name given to dementia of the Alzheimer type when it occurs in persons aged 65 or older.
substance-induced persisting dementia that resulting from exposure to or use or abuse of a substance, such as alcohol, sedatives, anxiolytics, anticonvulsants, lead, mercury, carbon monoxide, or organophosphate insecticides, but persisting long after exposure to the substance ends, usually with permanent and worsening deficits. Individual cases are named for the specific substance involved.
vascular dementia patchy deterioration of intellectual function resulting from damage by a significant cerebrovascular disorder.

se·nile de·men·ti·a

dementia of Alzheimer disease developing after age 65.

senile dementia

n.
A progressive, abnormally accelerated deterioration of mental faculties and emotional stability in old age, occurring especially in Alzheimer's disease.

Binswanger's dementia

A form of small-vessel vascular dementia caused by ischaemic demyelination of hemispheric white matter.

Clinical findings
Impaired executive functions—planning, cognitive flexibility, abstract thinking, initiating appropriate actions and inhibiting inappropriate actions, and selecting relevant sensory information—but have normal episodic or declarative memory, which contrasts sharply with Alzheimer’s disease, which is characterised by intact executive function but memory defects.
 
Aetiology
Chronic hypertension, advanced age.
 
Diagnosis
CT, MRI, MR spectrography.

senile dementia

The cognitive decline and progressive neurodegeneration typical of older adults; ischemia of periventricular white matter may cause a significant proportion of SD, which disconnects the relatively intact cerebral cortex, resulting in true subcortical dementia or Binswanger type dementia. Cf Alzheimer's disease, Lacunar state, Multi-infarct dementia, Pseudodementia.

se·nile de·men·ti·a

(sen'il dĕ-men'shē-ă)
Cognitive impairment first occurring in the seventh or eighth decade of life, usually due to Alzheimer disease or cerebrovascular impairment.

senile dementia

See DEMENTIA.

se·nile de·men·ti·a

(sen'il dĕ-men'shē-ă)
Dementia of Alzheimer disease developing after age 65.
References in periodicals archive ?
The differences in genotype distribution of PON2-311 polymorphism and allele frequency between the senile dementia group and mixed dementia group were not significant (p > 0.05; Table 4).
Neuroleptic sensitivity in patients with senile dementia of Lewy body type.
His release on the grounds of senile dementia, after a month, drew a storm of protest.
Q I HAVE been caring for my husband alone for the past six years after he developed senile dementia.
In the picturesque coastal town of Seabrook, North Carolina, Ms Hamilton (Rowlands) spends her final days battling with senile dementia in a private nursing home.
A conman has been jailed for two years for his part in an elaborate plot to swindle a retired dentist suffering from senile dementia out of his life savings.
Two years ago he was quizzed by police over child sex allegations but was never prosecuted because he was suffering from senile dementia.
A MOBILE phone firm have come under fire for mocking victims of senile dementia.
In a trial of patients with advanced parkinsonism and drug-induced psychosis, quetiapine was found to be safe and effective in patients with psychosis.[16] This group included patients with idiopathic Parkinson's disease (IPD), progressive supranuclear palsy, Lewy body dementia (LBD), and overlapping syndromes of IPD/Alzheimer's disease and senile dementia of the Alzheimer's type/LBD.
Police said Murakami, who has senile dementia, was moved May 16 from a hospital in Abuta, a Hokkaido town from which many people were evacuated after the volcano erupted March 31.
Diagnosis includes Alzheimer's and senile dementia, ASHD.
NGF, the committee suggests, may prove useful in enhancing repair of damaged nerves, andstudying its function will add to the knowledge of errors of development, senile dementia, wound healing, muscular dystrophy and certain tumors.