Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0027066 (myoclonus)
 4,275 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The examination of five pediatric patients with encephalopathy secondary to chronic renal failure has indicated a stereotyped sequence of neurologic signs and symptoms including ataxia, loss of motor abilities, myoclonus, seizures, dementia, and bulbar dysfunction. Both the patients with CNS dysfunction and a control group selected for a similar degree of renal failure had increased levels of serum phosphate, alkaline phosphatase, and parathyroid hormone. Serial EEGs in the affected group revealed progressive slowing and an increase in paroxysmal features. No specific neuropathologic findings were noted in one patient.
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PMID:Encephalopathy in infants and children with chronic renal disease. 729 12

A 34-year-old pregnant patient, admitted with severe pre-eclampsia and the 'haemolysis, elevated liver enzymes, low platelets' (HELLP) syndrome at 31 weeks gestational age, was treated with magnesium sulphate for imminent eclampsia. The further management was aimed at prolonging gestation. During treatment, a delirium developed with myoclonus. As the foetal condition deteriorated, caesarean section was performed. Afterwards, the delirium proved to have been due to hypocalcaemia. After appropriate treatment the patient recovered. In pre-eclampsia, the calcium metabolism is disturbed. Hypermagnesaemia inhibits parathyroid hormone secretion and can therefore cause hypocalcaemia. In rare cases, this may cause a delirium, which is unusual in pre-eclampsia. If the clinical (neurological) picture in a pregnant woman with severe pre-eclampsia, who is receiving treatment with magnesium sulphate, is not fully understood, hypocalcaemia should be considered.
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PMID:[Hypocalcemic delirium due to magnesium sulphate therapy in a pregnant woman with pre-eclampsia]. 1235 87

Hypocalcemia is an uncommon illness in children. In developed countries the incidence of rickets has decreased significantly, although last years this pathology is increasing at the expense of immigration. Its etiology is due to different factors such as low sun exposure, inadequate clothing and bad feeding and excessive contributions in phytates, exclusive breastfeeding and genetic factors. We report a case of a teenager 13 year old from Pakistan, who consulted for myoclonus, paresthesias, hand midwife and asymmetry walking. The laboratory emphasizes hypocalcemia deficit of 25 (OH) D and increased parathyroid hormone. Administration of calcium and vitamin D along with changes in his diet normalized clinical and laboratory parameters. Due to increased migration, the lack of sun exposure and inadequate supply this disease which was almost forgotten will appear another time.
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PMID:[Tetany secondary to deficiency rickets]. 2273 97

A 1-year, 8-month-old Rhodesian Ridgeback was presented with obtundation, ambulatory tetraparesis, and myoclonus. Initial clinical findings included ionized hypercalcemia with an apparent marked increase in parathyroid hormone, thrombocytopenia, and nonregenerative anemia. Low numbers of circulating atypical cells were noted on blood film evaluation. Brain magnetic resonance imaging identified an extra-axial contrast enhancing subtentorial lesion, and cerebrospinal fluid (CSF) analysis documented a marked atypical lymphocytic pleocytosis. Flow cytometry performed on the CSF demonstrated expression of only CD45, CD90, and MHC class II, with Pax5 positivity on subsequent immunohistochemistry. The final diagnosis was of B-cell lymphoblastic lymphoma or acute leukemia, given the distribution of disease and the presence of significant bone marrow infiltration alongside an aggressive clinical course. The unusual immunophenotype of the neoplastic cells and hypercalcemia presented antemortem diagnostic challenges, highlighting the need for a multidisciplinary approach and caution in the interpretation of clinical abnormalities in cases with multiple comorbidities.
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PMID:Myoclonus and hypercalcemia in a dog with poorly differentiated lymphoproliferative neoplasia. 3056 Oct 32