{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,4]],"date-time":"2026-08-04T04:32:03Z","timestamp":1785817923174,"version":"3.56.0"},"reference-count":23,"publisher":"Cambridge University Press (CUP)","issue":"3","license":[{"start":{"date-parts":[[2015,9,18]],"date-time":"2015-09-18T00:00:00Z","timestamp":1442534400000},"content-version":"unspecified","delay-in-days":6987,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Can. j. neurol. sci."],"published-print":{"date-parts":[[1996,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:bold><jats:italic>Background<\/jats:italic><\/jats:bold>: The term, \u201ctriphasic wave\u201d originally described an EEG pattern believed to be a marker for a specific stage of hepatic coma. For 4 decades, the diagnostic and prognostic specificity of the pattern remains controversial. Its pathophysiology also continues to be elusive. <jats:italic><jats:bold>Methods<\/jats:bold><\/jats:italic>: EEG recordings were obtained in three patients known or suspected to have primary generalized epilepsy. In 2 patients, the EEGs were part of long-term monitoring using simultaneous video-EEG telemetry. For the third patient, the EEG was secured only during the post-ictal unconsciousness. These 3 patients were specifically selected because of the presence of triphasic waves in their EEGs. <jats:italic><jats:bold>Results<\/jats:bold><\/jats:italic>: Triphasic waves were observed in the EEG of the 3 patients only during post-ictal unconsciousness. The pattern was transient, being preceded by generalized suppression and delta slow waves and followed by theta activities. Alpha rhythms supervened when the patients became fully alert. <jats:italic><jats:bold>Conclusion<\/jats:bold><\/jats:italic>: A post-ictal state should be considered in unconscious patients with triphasic EEG waves.<\/jats:p>","DOI":"10.1017\/s0317167100038531","type":"journal-article","created":{"date-parts":[[2016,2,17]],"date-time":"2016-02-17T04:28:30Z","timestamp":1455683310000},"page":"208-212","source":"Crossref","is-referenced-by-count":20,"title":["Triphasic Waves During Post-Ictal Stupor"],"prefix":"10.1017","volume":"23","author":[{"given":"Abayomi","family":"Ogunyemi","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2015,9,18]]},"reference":[{"key":"S0317167100038531_ref271","doi-asserted-by":"publisher","DOI":"10.1172\/JCI103134"},{"key":"S0317167100038531_ref275","first-page":"222","article-title":"Triphasic waves in metabolic encephalopathy","volume":"36","author":"Harner","year":"1974","journal-title":"Electroencephalogr Clin Neurophysiol"},{"key":"S0317167100038531_ref288","doi-asserted-by":"publisher","DOI":"10.1111\/j.1528-1157.1979.tb04840.x"},{"key":"S0317167100038531_ref289","doi-asserted-by":"publisher","DOI":"10.1016\/0166-2236(91)90178-W"},{"key":"S0317167100038531_ref272","first-page":"161","article-title":"Significance of the electroencephalographic changes in hepatic coma","volume":"75","author":"Foley","year":"1950","journal-title":"Trans Am Neurol Assoc"},{"key":"S0317167100038531_ref281","doi-asserted-by":"publisher","DOI":"10.1001\/archneur.1972.00490090044003"},{"key":"S0317167100038531_ref274","doi-asserted-by":"publisher","DOI":"10.1016\/0013-4694(88)90188-5"},{"key":"S0317167100038531_ref277","first-page":"428","article-title":"The \u201ctriphasic waves\u201d of hepatic encephalopathy","volume":"28","author":"MacGillivray","year":"1970","journal-title":"Electroencephalogr Clin Neurophysiol"},{"key":"S0317167100038531_ref273","doi-asserted-by":"publisher","DOI":"10.1177\/155005949002100305"},{"key":"S0317167100038531_ref278","first-page":"104","article-title":"The electroencephalogram in the investigation of metabolic comas","volume":"28","author":"Reiher","year":"1970","journal-title":"Electroencephalogr Clin Neurophysiol"},{"key":"S0317167100038531_ref291","doi-asserted-by":"publisher","DOI":"10.1113\/jphysiol.1989.sp017705"},{"key":"S0317167100038531_ref276","doi-asserted-by":"publisher","DOI":"10.1016\/0013-4694(84)90120-2"},{"key":"S0317167100038531_ref286","doi-asserted-by":"publisher","DOI":"10.1016\/0013-4694(77)90281-4"},{"key":"S0317167100038531_ref285","doi-asserted-by":"publisher","DOI":"10.1016\/0013-4694(64)90147-6"},{"key":"S0317167100038531_ref279","first-page":"456","article-title":"Diagnosis of metabolic encephalopathy: significance of triphasic waves in the electroencephalogram","volume":"22","author":"Simsarian","year":"1972","journal-title":"Neurology"},{"key":"S0317167100038531_ref280","doi-asserted-by":"publisher","DOI":"10.1017\/S0317167100026251"},{"key":"S0317167100038531_ref282","doi-asserted-by":"publisher","DOI":"10.1159\/000116645"},{"key":"S0317167100038531_ref283","first-page":"272","article-title":"Experimental studies on the functional anatomy of petit mal epilepsy","volume":"26","author":"Jasper","year":"1946","journal-title":"Res Pubi Assoc Res Nerv Ment Dis"},{"key":"S0317167100038531_ref284","doi-asserted-by":"publisher","DOI":"10.1016\/0013-4694(64)90009-4"},{"key":"S0317167100038531_ref287","doi-asserted-by":"publisher","DOI":"10.1016\/0013-4694(77)90198-5"},{"key":"S0317167100038531_ref292","doi-asserted-by":"publisher","DOI":"10.1002\/ana.410250610"},{"key":"S0317167100038531_ref293","doi-asserted-by":"publisher","DOI":"10.1523\/JNEUROSCI.12-10-03804.1992"},{"key":"S0317167100038531_ref290","doi-asserted-by":"publisher","DOI":"10.1113\/jphysiol.1989.sp017668"}],"container-title":["Canadian Journal of Neurological Sciences \/ Journal Canadien des Sciences Neurologiques"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0317167100038531","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,5,12]],"date-time":"2019-05-12T16:54:54Z","timestamp":1557680094000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0317167100038531\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1996,8]]},"references-count":23,"journal-issue":{"issue":"3","published-print":{"date-parts":[[1996,8]]}},"alternative-id":["S0317167100038531"],"URL":"https:\/\/doi.org\/10.1017\/s0317167100038531","relation":{},"ISSN":["0317-1671","2057-0155"],"issn-type":[{"value":"0317-1671","type":"print"},{"value":"2057-0155","type":"electronic"}],"subject":[],"published":{"date-parts":[[1996,8]]}}}