Outcomes of patients with altered level of consciousness and abnormal electroencephalogram: A retrospective cohort study

Sanches, Paula Rodrigues; Corrêa, Thiago Domingos; Ferrari-Marinho, Taíssa; Naves, Pedro Vicente Ferreira; Ladeia-Frota, Carol; Caboclo, Luís Otávio Sales Ferreira

doi:10.1371/journal.pone.0184050

Cited by 2 publications

(1 citation statement)

References 27 publications

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“…31 However, Maingueneau et al 32 are of view that PDs are simply markers of nonspecific brain injury that are often accompanied by underlying comorbidities. In the study conducted by Sanches et al, 33 treatment with AED or intravenous anesthetic drugs did not improve the incidence of unfavorable outcomes in patients with acute ALC and abnormal routine EEG, regardless of the presence of rhythmic, periodic, or ictal electroencephalogram patterns. In this study, asymmetrical background was associated with TBI, while persistent focal SWA, asymmetric background, and RDA were statistically significantly more prevalent in patients discharged from hospital due to sequelae of current Abbreviations: SWs, spike and waves or sharp waves; PDs, periodic discharges; TWs, triphasic waves; RDA, rhythmic delta activity; SWA, slow wave activity.…”

Section: Burst Suppressionmentioning

confidence: 84%

Clinical Correlates of Electroencephalographic Patterns in Critically Ill Patients

et al. 2020

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Objective The objective of this study was to determine the frequency and clinical correlates of different electroencephalographic patterns and their association with clinical outcomes in critically ill patients. Subjects and Methods This retrospective cross-sectional study was performed in the Neurology Department of King Fahd Hospital of the University, Kingdom of Saudi Arabia and involved a review and analysis of medical records pertaining to 179 intensive care unit patients who underwent electroencephalography (EEG) in the June to November 2018 period. Results Among the different etiologies, presence of spike and wave or sharp wave (SWs) was associated with encephalitis ( P = .01) and large artery stroke ( P = .01), whereas markedly attenuated EEG activity ( p = .04) and burst suppression ( P = .01) were associated with large artery stroke and hypoxic ischemic encephalopathy (HIE), respectively. Generalized theta activity ( P = .01) was significantly found in patients of septic encephalopathy, while generalized delta activity ( P = .02) and asymmetrical background ( P = .04) were significantly associated with traumatic brain injury. Presence of periodic discharges in EEG was significantly associated with more adverse clinical outcomes ( P = .001), whereas rhythmic delta activity (RDA) ( P = .03), persistent focal slow wave activity ( P = .01), and asymmetric background ( P = .002) were found in patients who were discharged from hospital with sequelae of current illness. Conclusion Certain EEG patterns are associated with particular underlying etiologies like SWs for encephalitis, markedly attenuated EEG activity and burst suppression with large artery stroke and HIE, respectively. Whereas few EEG patterns, including periodic discharges, RDA, persistent focal slow wave activity have some prognostic value in critically ill patients. However, they cannot be used as markers for prognostic assessment of patients without considering other clinical and diagnostic variables. Further larger prospective studies with continuous EEG monitoring with control of confounding factors are needed.

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Section: Burst Suppressionmentioning

confidence: 84%

Clinical Correlates of Electroencephalographic Patterns in Critically Ill Patients

et al. 2020

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Electroencephalography Findings in Traumatic Brain Injury

Kadri¹,

Apriani²

2022

TONEUJ

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Traumatic Brain Injury (TBI) or also known as a head injury is one of the leading causes of death among young people and is also one of the health problems defined as impact, penetration, and rapid movement of the brain within the skull that can result in changes in mental status and is often referred to as the silent epidemic. Head injuries can also result in electrophysiological abnormalities seen on electroencephalography (EEG) recordings. Electroencephalography was the first clinical neurodiagnostic assessment to reveal abnormal brain function after a head injury. For detecting brain injury, EEG may be more sensitive than clinical neurologic examination. In general conditions, electroencephalography is performed on patients with moderate to severe head injuries to provide information about the severity of the head injury, and establish a diagnosis of non-convulsive status epilepticus. This diagnosis often follows head injuries because patients with loss of consciousness are difficult to identify without an EEG examination. This also helps determine a prognosis for recovery and the likelihood of post-traumatic seizures. Electroencephalography features in head injuries depend on the severity of the injury and the location of the head itself. Electroencephalography after head injury shows slowing of the posterior dominant rhythm and increasing diffuse theta slowing, which returns to normal within hours or may subside more slowly over several weeks. Electroencephalography changes are not the same in each individual, due to differences in the severity of head injuries. It is important to know that there is no clear or specific EEG for mild traumatic brain injury.

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Outcomes of patients with altered level of consciousness and abnormal electroencephalogram: A retrospective cohort study

Cited by 2 publications

References 27 publications

Clinical Correlates of Electroencephalographic Patterns in Critically Ill Patients

Clinical Correlates of Electroencephalographic Patterns in Critically Ill Patients

Electroencephalography Findings in Traumatic Brain Injury

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