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Query: UMLS:C0038454 (stroke)
 147,016 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

We describe 5 patients with a relapsing encephalopathy in association with Hashimoto's disease and high titers of anti-thyroid antibodies. The presentation is usually with a subacute onset of confusion, alteration in conscious level, and focal or generalized seizures. The relapsing course, association with myoclonus or tremulousness, and episodes of stroke-like deterioration are characteristic features. The long-term prognosis is favorable with steroid therapy, though additional immunosuppressive therapy may be required. Neurologic investigation typically shows a diffusely abnormal EEG, high CSF protein level without pleocytosis, and normal brain CT and cerebral angiogram. Isotope brain scan may show patchy abnormal uptake. Hashimoto's encephalopathy should be recognized as a definite neurologic entity and added to the list of CNS complications of thyroid disease.
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PMID:Hashimoto's encephalopathy: a steroid-responsive disorder associated with high anti-thyroid antibody titers--report of 5 cases. 199 66

Six patients with Hashimoto thyroiditis (HT) and associated encephalopathy (HE) are described and compared with 14 well-documented cases retrieved from the literature. HE typically affects patients when they are euthyroid and, in an appropriate clinical situation, antithyroid autoantibodies are the main indicators of HE. Since clinical features of HE are unspecific, other aetiologies such as infectious, metabolic, toxic, vascular, neoplastic, and paraneoplastic causes have to be excluded. Our own six cases and those from the literature show that two types of initial clinical presentation can be differentiated: a vasculitic type with stroke-like episodes and mild cognitive impairment in nine patients, and a diffuse progressive type with dementia, seizures, psychotic episodes or altered consciousness in 11 patients. These types may overlap, particularly in the long-term course without treatment. Response to steroids was usually excellent with complete remission in 80%. Eighteen of the 20 patients were women. Characteristic, though unspecific, findings were abnormal EEG (90%) and CSF (80%). Together with quantitative neuropsychological testing, these proved sensitive for monitoring the efficacy of therapy. Conversely, antithyroid autoantibody titres did not correlate with the severity or type of clinical presentation. The link between HE and HT is not clear. A pathogenetic role for antithyroid autoantibodies in the central nervous system seems unlikely.
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PMID:Encephalopathy associated with Hashimoto thyroiditis: diagnosis and treatment. 886 25

In recent years, encephalopathy has increasingly been recognized as a complication of Hashimoto's thyroiditis. It can begin abruptly as a stroke-like event, acute seizures, or confusion, or as an insidious decline in cognitive function. Most reported cases have been on adult patients, although this encephalopathy does affect children as well. This form of encephalopathy should be considered in the differential diagnosis of children and adults with unexplained neurologic deterioration. We describe the case of a child in whom acute encephalopathy was the presenting symptom of Hashimoto's thyroiditis.
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PMID:Encephalopathy as the presenting symptom of Hashimoto's thyroiditis. 1064 16

Hashimoto's encephalopathy is a steroid-responsive, relapsing or progressive encephalopathy associated with Hashimoto's thyroiditis. Characteristic clinical features are confusion, seizures, alteration in conscious level, stroke-like episodes, myoclonus, and tremulousness. High CSF protein levels without pleocytosis and a diffusely abnormal EEG are typical findings. Brain CT and MRI and cerebral angiogram are usually normal. We present two case reports of Hashimoto's encephalopathy in 55- and 77-year-old patients who both responded well to steroid therapy, and review the literature.
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PMID:[Hashimoto encephalopathy: steroid-sensitive encephalopathy in Hashimoto thyroiditis]. 1091 46

Hashimoto's encephalopathy is a poor understood neurological disorder associated with thyroid disease. We describe a 12 years old woman with a relapsing clinical picture characterized by acute onset confusion, tremor, convulsive seizures and a stroke-like episode associated with autoimmune thyroid disease. High titers of antithyroid antibodies were detected in her serum. Neurologic investigation showed a marked slowing of the basic activity in EEG, diminished perfusion of left hemisphere in brain SPECT, mild CSF protein level without pleocytosis, and normal brain CT and cerebral angiogram. The clinical course was favorable without corticosteroid therapy. Antithyroid antibodies and EEG were normal after one-year follow-up. We suggest that antithyroid antibody levels should be checked in any unexplained acute or subacute encephalopathy, especially when a relapsing course, stroke-like exacerbation, seizures, tremor or elevation of the CSF protein are found.
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PMID:[Hashimoto's encephalitis: a new case with spontaneous remission]. 1107 81

Hashimoto's encephalitis was first described more than 30 years ago. The clinical picture is typically that of a subacute encephalopathy with a moderate to marked alteration of consciousness, seizures, myoclonus or tremulousness. Additional stroke-like episodes can occur along the course of the disease which may be monophasic or relapsing. The diagnosis of Hashimoto's encephalitis requires the presence of an elevated titer of antithyroid antibodies (mainly anti-thyroperoxidase and also anti-thyroglobulin) which is not necessarily associated with obvious thyroid dysfunction. The results of neurologic investigations are not specific and show typically a global slowing of the EEG, a moderately high CSF protein content and a normal or near normal imaging except in rare cases. The disorder is considered autoimmune and is remarkably responsive to corticosteroids which must be started as soon as possible after the diagnosis has been confirmed biologically. The long-term prognosis is usually good but some patients may die or present major neurologic sequelae.
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PMID:[Hashimoto's encephalitis]. 1240 5

Hashimoto's autoimmune thyroiditis is a common cause of thyroid disease. Neurological dysfunction related to thyroid hypo or hyperfunction is well known. Not so is autoimmune thyroid disease-associated or Hashimoto's encephalopathy, which includes different neurological manifestations appearing in the context of autoimmune thyroiditis with normal hormone levels. Around fifty cases have been reported since the first description by Brain in 1966. Pathogenesis is unknown, although the most accepted theory points out to an autoimmune cerebral dysfunction. There are two different clinical presentations. The vasculitic type is characterized by relapsing-remitting stroke-like episodes. The diffuse-progressive type shows insidious cognitive impairment, confusion, psychosis, somnolence and coma. Cerebrospinal fluid is abnormal in more than 80% of patients, with high protein levels and mononuclear pleocytosis. Steroids are the treatment of choice, although favourable evolution have been reported spontaneously or after thyroxine treatment.
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PMID:[Hashimoto's encephalopathy]. 1248 58

A 35-year-old Korean woman had Hashimoto encephalopathy of varying MR imaging appearance over 5 years that ranged from that of transient subcortical ischemia to that of gradually evolving multifocal signal intensity change accompanied by unilateral cerebellar atrophy. Thus, the MR imaging appearance of Hashimoto encephalopathy may simulate an ischemic stroke, multiple tumors or granulomas, or even a degenerative process.
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PMID:MR findings in Hashimoto encephalopathy. 1514 Jul 25

Characteristic clinical findings of Hashimoto's encephalopathy (HE) are stroke-like episodes, epileptic seizures, myoclonus, psychosis, and progressive cognitive impairment. Diagnosis of HE is supported by elevated antithyroid antibodies, an abnormal EEG, and by good response to steroids. We report on a 74-year-old female patient with a severe depressive episode who showed no treatment response to citalopram 40 mg/day and venlafaxine 150 mg/day. Diagnostic examination revealed an abnormal EEG, elevated thyroid peroxidase antibodies (TPO-Ab), and older postinflammatory changes in thyroidal sonography. We diagnosed a depression in HE and began treatment with prednisolone 70 mg/day with stepwise dose reduction, continuing treatment with venlafaxine 150 mg/day. Within 4 weeks of treatment, the severe depressive episode disappeared as well as abnormal EEG. In addition, serum values of TPO-Ab decreased. In HE, depressive symptoms can possibly be seen in a subgroup of patients or in the early course of the disease. Diagnosis of HE should be included in diagnostic procedures in cases of therapy-refractory depression because of a good response of HE to steroids.
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PMID:[Depression in Hashimoto's encephalopathy. Successful treatment of a severe depressive episode with a glucocorticoid as an add-on therapy]. 1544 21

Hashimoto's encephalopathy (HE) is an acute or subacute relapsing disorder usually affecting euthyroid patients with evidence of autoimmune thyroiditis. The neurological manifestations are non-specific, with subacute cognitive impairment, movement disorders, generalized seizures, focal neurological symptoms such as stroke-like episodes, or psychiatric disturbances. Autoimmune phenomena are likely to play an etiological role. Magnetic resonance imaging (MRI) findings are usually normal or show non-specific changes. We report the case of an 11-year-old girl with autoimmune thyroiditis who presented acutely with a complex neuropsychiatric disorder in association with MRI evidence of focal involvement of the nucleus accumbens (NA). The NA, a ventral striate nucleus, is part of a complex dopaminergic network. Lesions to the NA result in several psychiatric symptoms, such as attention-deficit hyperactivity disorders. In this patient, we observed alternating phases of stupor and hyperkinetic-anxious behavior, with marked instability. The pathogenetic mechanism and the anatomic and functional correlations are briefly discussed.
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PMID:Hashimoto's encephalopathy with selective involvement of the nucleus accumbens: a case report. 1594 10


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