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Query: UMLS:C0015672 (fatigue)
 51,768 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The first autopsy of a case of multiple sclerosis from the District of Hokuriku was reported. The patient, a 50-year-old house-wife, born in Toyama Prefecture, had noticed a paresthesia of her face, fatigue, numbness and weakness in the right limbs, dimness of vision and gait disturbance at ave 44. Furthermore, in the course of the disease, she had suffered from visual disorder, tetraplegia, hyperreflexia, pyramidal signs and cerebellar syndroms such as dysarthria, nystagmus, intention tremor and ataxia. She also showed symptoms of euphoria and dementia. After a course of six years she died of bronchopneumonia. Remissions and exacerbations were noted four times during her clinical history. Histopathologically, there were many recent and old demyelinating lesions of varying sizes and shapes in all parts of the central nervous system, namely the cerebrum, brainstem, spinal cord and optic nerve. In contrast to the clinical symptoms, the cerebellum itself revealed less plaques than the other areas of the brain. According to the observed distributions of the lesions, our case can be classified as belonging to the optico-cerebro-spinal type in the Ikuta and Zimmerman classification. The demyelinated lesions were characterized by a perivenular distribution of the plaques, lack of tissue necrosis, paucity of inflammatory reaction and marked fibrous gliosis of varying degrees.
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PMID:First autopsy report of a multiple sclerosis case in Hokuriku District of Japan. 53 38

Thirty-one patients with intention tremor due to a variety of causes were subjected to measurements of their intention tremor. The effect of varying amounts of lead weights on the amount of limb tremor recorded was noted. It is concluded that simple methods of treatment may be of benefit, and that an objective method of measuring intention tremor overcomes many of the difficulties of a clinical trial of this type. The method described yields quantifiable data which can be subjected to statistical analysis to help overcome the problem of variability. Bias in the results due to practice or fatigue effects has proved negligible. An optimum amount of lead, which was usually between 600 and 840 g, has been noted.
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PMID:Application of an objective method of assessing intention tremor - a further study on the use of weights to reduce intention tremor. 115 6

Forty-seven railroad workers who were exposed to polychlorinated phenols, including dioxin (TCDD), during 1979 while cleaning up the chemical spillage following damage to a tank car filled with these chemicals were followed medically for the subsequent 6 years. Two committed suicide. The initial neurological complaints included a sense of fatigue and muscle aching, both of which have been reported in other individuals following dioxin exposure. On detailed neurological examination in December, 1985, 24 of 45 had dystonic writer's cramp and/or other action dystonias of the hands. None of the involved individuals had a family history of dystonia, and all 24 dated the onset of the dystonia to the first 2 to 3 years subsequent to their toxic exposure. The dystonias varied in severity but were usually mild. No other types of dystonic involvement were recognized. Thirty-five of the 45 individuals also manifested postural and terminal intention tremor which resembled benign essential tremor. None of the involved individuals had a family history of tremor, and all 35 of those affected dated the onset of the tremor to some time subsequent to their toxic exposure. Forty-three of 45 patients had histories and findings suggestive of peripheral neuropathy. This is the first report relating any type of dystonia to prior dioxin exposure and the first report relating action dystonia, such as dystonic writer's cramp, and postural/terminal intention tremor, to toxic exposure of any type.
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PMID:Dystonia and tremor following exposure to 2,3,7,8-tetrachlorodibenzo-p-dioxin. 284 55

Two children and 29 of 31 crew members aboard a grain freighter became acutely ill after inhaling the toxic fumigant phosphine; one child died. Predominant symptoms were headache, fatigue, nausea, vomiting, cough, and shortness of breath. Abnormal physical findings included jaundice, paresthesias, ataxia, intention tremor, and diplopia. Focal myocardial infiltration with necrosis, pulmonary edema, and widespread small-vessel injury were found at postmortem examination of the dead child. The surviving child showed ECG and echocardiographic evidence of myocardial injury and transient elevation of the MB fraction of serum creatinine phosphokinase. Illness was significantly associated with living or working amidships or on the forward deck areas of the vessel. Phosphine gas was found to have escaped from the holds through a cable housing located near the midships ventilation intake and around hatch covers on the forward deck. The outbreak illustrates the hazards associated with shipboard fumigation.
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PMID:Acute phosphine poisoning aboard a grain freighter. Epidemiologic, clinical, and pathological findings. 738 74

A 19-year-old man developed tremor in both hands and fatigue after starting work at a placer gold mine where he was exposed to mercury-gold amalgam. Examination revealed an intention tremor, dysdiadochokinesis and mild rigidity. The 24-h urinary mercury concentration reached a peak of 715 nmol/l (143 ug/l) shortly before the clinical examination, after which he was removed from working in the gold room [Mercury No. Adverse Effect Level: 250 nmol/l (50 ug/l)]. On review 7 weeks later his tremor had almost resolved and the dysdiadochokinesis and rigidity had gone. The 24-h urinary mercury concentration had fallen to 160 nmol/l (32 ug/l). The principal exposure to mercury was considered to be the smelting of retorted gold with previously unrecognized residual mercury in it. The peak air concentration of mercury vapour during gold smelting was 0.533 mg/m3 (Mercury Vapour ACGIH TLV: 0.05 mg/m3 TWA). Several engineering and procedural controls were instituted. This episode occurred at another mine site, unrelated to Mount Isa Mines Limited.
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PMID:Mercury toxicity due to the smelting of placer gold recovered by mercury amalgam. 1002 39

We have reviewed the outcome of patients who have undergone thalamotomy for the intention tremor of multiple sclerosis (MS). Twenty-four patients underwent 29 procedures between 1988 and 1995. These patients were assessed for the degree of disability due to MS and for the impairment of arm function due to the tremor. Preoperative, postoperative and last follow-up score (mean 2.2 years) were determined for arm function following thalamotomy. Patient satisfaction, where expressed, was recorded. Twenty-three procedures (79%) resulted in immediate improvement in arm function. Thirteen complications were recorded. Postoperative fatigue was demonstrated after seven procedures. Sustained benefit was seen after 18 procedures (62%). Out of 23 patients whose opinions are recorded four were enthusiastic and 10 satisfied with the outcome. We conclude that, despite severe disability, a majority of patients with intention tremor of MS may still benefit from thalamotomy and are satisfied with the results.
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PMID:Vim thalamotomy for the relief of the intention tremor of multiple sclerosis. 1007 Apr 67

Fatigue has been linked to deficits in production quality and productivity and, if of long duration, work-related musculoskeletal disorders. It may thus be a useful risk indicator and design and evaluation tool. However, there is limited information on the test-retest reliability, the sensitivity and the effects of diurnal fluctuation on field usable fatigue measures. This study reports on an evaluation of 11 measurement tools and their 14 parameters. Eight measures were found to have test-retest ICC values greater than 0.8. Four measures were particularly responsive during an intermittent fatiguing condition. However, two responsive measures demonstrated rhythmic behaviour, with significant time effects from 08:00 to mid-afternoon and early evening. Action tremor, muscle mechanomyography and perceived fatigue were found to be most reliable and most responsive; but additional analytical considerations might be required when interpreting daylong responses of MMG and action tremor. Practitioner Summary: This paper presents findings from test-retest and daylong reliability and responsiveness evaluations of 11 fatigue measures. This paper suggests that action tremor, muscle mechanomyography and perceived fatigue were most reliable and most responsive. However, mechanomyography and action tremor may be susceptible to diurnal changes.
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PMID:Sensitivity, reliability and the effects of diurnal variation on a test battery of field usable upper limb fatigue measures. 2769 21