{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,30]],"date-time":"2026-04-30T17:49:05Z","timestamp":1777571345948,"version":"3.51.4"},"reference-count":20,"publisher":"SAGE Publications","issue":"4","license":[{"start":{"date-parts":[[2014,6,27]],"date-time":"2014-06-27T00:00:00Z","timestamp":1403827200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Clin EEG Neurosci"],"published-print":{"date-parts":[[2015,10]]},"abstract":"<jats:p>Hypercalcemia can cause a subacute syndrome of progressive dementia and marked changes in the electroencephalogram (EEG). We report a case of iatrogenic hypercalcemia with a close correlation between the clinical course and the EEG changes. A 73-year-old woman presented with a subacute syndrome of progressive dementia and bursts of 1.5 to 2 Hz intermittent rhythmic delta activity superimposed on a low-voltage background activity in the EEG. Clinical and EEG abnormalities rapidly resolved after normalization of serum calcium levels. As part of the diagnostic workup of a subacute progressive dementia, a serum calcium level and an EEG should be obtained to detect a Creutzfeldt-Jakob like syndrome in hypercalcemia. Unlike in Creutzfeldt-Jakob disease, and Creutzfeldt-Jakob\u2013like syndrome induced by lithium intoxication, there are rarely myoclonic jerks and periodic discharges in hypercalcemic encephalopathy.<\/jats:p>","DOI":"10.1177\/1550059414529764","type":"journal-article","created":{"date-parts":[[2014,6,27]],"date-time":"2014-06-27T22:43:34Z","timestamp":1403909014000},"page":"327-330","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":4,"title":["Creutzfeldt-Jakob\u2013Like Syndrome due to Hypercalcemic Encephalopathy"],"prefix":"10.1177","volume":"46","author":[{"given":"Johannes","family":"R\u00f6sche","sequence":"first","affiliation":[{"name":"Klinik und Poliklinik f\u00fcr Neurologie, Universit\u00e4tsmedizin Rostock, Rostock, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Catharina","family":"Sieveking","sequence":"additional","affiliation":[{"name":"Klinik f\u00fcr Psychiatrie und 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