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Query: UMLS:C0040822 (tremor)
 18,428 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Three patients of different ages with evidence of essential tremor of familial origin are reported. Pneumoencephalography demonstrated in these cases presence of hydrocephalus. The size of the cerebral ventricles was assessed by means of the index of Schiermann and Evans. No correlation was observed between the degree of changes in the ventricular system and the duration of the disease. Abnormalities moencephalograms concerned only the Evans index.
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PMID:[Pneumoencephalographic appearance of cerebral ventricles in spontaneous tremor]. 47 Nov 59

The clinical features of three children in whom a slow tremor involving the head, trunk, or limbs was associated with macrocephaly are presented. The findings were similar but not identical to those previously reported in four children with the bobble-head doll syndrome. These seven children have many of the signs and symptoms found in patients with surgically or spontaneously arrested hydrocephalus, including motor incoordination, behavior and psychologic deviations, and endocrine dysfunction. The tremor which can be voluntarily inhibited and which disappears following shunt surgery, is unique. The theoretical basis for the tremor is briefly discussed.
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PMID:Slow tremor and macrocephaly: expanded version of the bobble-head doll syndrome. 115 47

Four mature infants developed intracranial haemorrhage at ages from ten hours to five weeks. No predisposing or provoking factors could be demonstrated. The symptoms were apnoea, vomiting, pyrexia, irritability, tremor, hypertonicity, seizures and tense fontanelle. The diagnosis was established by ultrasound scanning and confirmed by computed tomographic scanning. The infants developed hydrocephalus requiring treatment. During the period of observation, these infants showed normal psychomotor development and the neurological findings were normal.
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PMID:[Intracranial hemorrhage in mature infants without predisposing factors]. 218 Jan 63

We studied clinically and electrophysiologically 8 patients affected by orthostatic tremor (OT), which is an unusual movement disorder consisting of shaking movements of the legs and trunk in the standing position. We failed to find any cause in 6 of the 8 cases. In 2 patients OT was clearly secondary to neurologic disease: hydrocephalus due to non-tumoral aqueduct stenosis and chronic relapsing polyradiculoneuropathy. The findings obtained suggest a relationship between OT and essential tremor (ET).
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PMID:Orthostatic tremor: essential and symptomatic cases. 232 30

A 16-year-old girl had hearing loss, paroxysmal tremor, gait disorders, and psychiatric disturbances as the initial manifestations of a cryptococcal meningoencephalitis. Imaging demonstrated an obstructive hydrocephalus, and neuro-otological explorations showed a retrocochlear deafness and diffuse brainstem involvement. Emphasis is on the deafness, which rarely occurs as a presenting symptom in this condition, and on its dramatic improvement following antimycotic therapy.
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PMID:Reversible hearing loss in a patient with cryptococcosis. 237 25

Colloid cysts of the third ventricle are rare, accounting for less than 1% of all intracranial neoplasms. However, its incidence will increase with increased use of CT scan and MRI. The symptomatology is principally acute or chronic hydrocephalus obstructing the foramen of Monro, and the origin of this cyst is controversial, neuroepithelial or endodermal. We report a case of colloid cyst of the third ventricle, associated with cavum veli interpositi. The patient, a 46-years-old female, had suffered from headache, ataxic gait and tremor lasting 6 months. CT scan and homogenous high signal intensity by SR (2450/450) MR image, detected a small round mass in the anterior part of the third ventricle that was of homogenous high density, but without the effect of enhancement. The lateral ventricle was markedly dilated, and a large cavum veli interpositi was found between the third ventricle and the corpus callosum. The cyst was totally removed by transventricular approach, and the result was satisfactory. We reviewed literatures and discussed MRI findings of colloid cysts of the third ventricle. Because of the presence of microvilli covered with coating materials seen in electron microscopic study, we suggested that the colloid cyst was endodermal in origin.
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PMID:[A case of colloid cyst of the third ventricle]. 306 9

This report describes a case of metrizamide encephalopathy with persistent disturbance of consciousness and extrapyramidal symptoms. These two conditions have rarely been reported among the various adverse effects of metrizamide. An 11-year-old girl had been in almost good health until she was ten years old, at which time she received a ventriculo-peritoneal shunt operation, suffering from hydrocephalus of unknown etiology. At the age of eleven, she was admitted to our hospital due to hydrocephalus recurrence. She was examined by metrizamide shunt-gram (1200 mg iodide/4 ml). On the next day, she became drowsy. The CT scan disclosed the periventricular penetration of metrizamide into the medial part of the thalamus and the caudate nucleus. Thirteen days later, disturbance of consciousness continued, and extrapyramidal symptoms, that is, rigo-spasticity and postural tremor, were observed. Oral administration of L-threo-DOPS, the direct precursor of noradrenaline, was effective against the persistent disturbance of consciousness and L-DOPA was effective against the extrapyramidal symptoms. She soon recovered almost to normal and no neurological deficit remained. We thus conclude that the CT scan findings and effects of L-threo-DOPS and L-DOPA suggest that metrizamide encephalopathy in this case were respectively due to its periventricular penetration into the medial part of the thalamus and the caudate nucleus, and the resultant deficiency of the ascending noradrenergic reticular activating system and the nigrostriatal dopaminergic system.
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PMID:[Metrizamide encephalopathy in a child with hydrocephalus--effects of L-threo-DOPS on persistent disturbance of consciousness and L-dopa on extrapyramidal symptoms]. 314 37

Epidermoid tumors located in the fourth ventricle are exceedingly rare. Seven cases of this pathological condition were observed during a 10-year period. Patients were mostly middle-aged men, with a clinical history of relatively short duration (5 months). Clinical symptoms consisted of vertigo and ataxia, followed by incoordination, dysmetria, and tremor at a later stage. Computed tomography scanning represented the main diagnostic technique for these lesions, and typically showed a highly hypodense, round-shaped area within the fourth ventricle, occasionally accompanied by hydrocephaly. Subtotal surgical removal of the cysts produced excellent results in 86% of the cases. The implications of these findings are discussed.
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PMID:Epidermoid cysts of the fourth ventricle. 334 62

Dementia--a syndrome of acquired intellectual deterioration--is an etiologically non-specific condition which is permanent, progressive, or reversible. In the evaluation of demented patients, a careful exposure history will determine the possible role of drugs, metals, or toxins. The physical examination may reveal focal deficits in cases of intracranial mass lesions and spasticity or ataxia of the lower limbs if hydrocephalus is present. Coexistance of dementia and peripheral neuropathy usually indicates a toxic or metabolic disorder. Asterixis, myoclonus, and postural tremor are common in toxic-metabolic dementias, while resting tremor, choreoathetosis, and rigidity occur in progressive extrapyramidal disorders. EEG is focally abnormal in cases of cerebral mass lesions and exhibits generalized slowing in toxic-metabolic encephalopathies. CT will aid in the identification of hydrocephalus, subdural hematomas, and intracranial mass lesions. A thorough laboratory evaluation including complete blood count, erythrocyte sedimentation rate, electrolytes, blood urea nitrogen and blood sugar, liver and thyroid tests, calcium and phosphorus levels, B12 and folate levels, serum copper and ceruloplasmin, VDRL, chest X-ray, electrocardiogram, and lumbar puncture may demonstrate treatable disorders that are adversely affecting intellectual function. Elderly individuals are particularly susceptible to the effects of toxic or metabolic disorders, and a mild dementia might be exaggerated by relatively minor fluctuations in metabolic status. Treatable causes of dementia should be considered in all demented patients.
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PMID:[Treatable dementia syndromes]. 358 48

Motor disturbances in 16 patients with normal-pressure hydrocephalus were assessed by quantitative registration of handwriting, fine movements of the hand, hand tremor, postural instability, and gait. Tremor intensity was measured using an accelerometer and electronic integration of the accelerometer curves. Postural instability was measured on a computer-assisted force-plate, and computerized analysis of gait was made using an instrumented treadmill. Severe disturbances in motor performance in the upper extremities and postural stability were found. The gait of the hydrocephalic patients was characterized by a very low speed, short steps, ataxia (especially in the vertical direction), and high energy consumption. After shunt operation, significant improvement was found in motor performance in the upper extremities and postural stability, and gait ataxia decreased in all patients to values within the 95% confidence interval of age-matched controls.
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PMID:Motor disturbances in normal-pressure hydrocephalus. Special reference to stance and gait. 394 11


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