Use of BIS VISTA™ bilateral monitor for diagnosis of intraoperative seizures, a case report

Clavero, F. Iturri; Medel, Gonzalo Tamayo; Sancho, K. de Orte; Uriarte, Amaia; Martínez, A.; Ruiz, Alberto

doi:10.1016/j.redar.2015.03.006

Cited by 5 publications

(9 citation statements)

References 19 publications

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“…In one individual with epileptiform activity, CDSA reverted back to a pattern similar to the sedation only cases after administration of midazolam. Several case reports commented on the changes of CDSA output during seizures, with similar CDSA patterns seen [18,29].…”

Section: Bis Device -Raw Eeg and Cdsa Tracesmentioning

confidence: 87%

“…9 studies were identified that involved patients in a peri-operative setting with seizures experienced whilst depth of anaesthesia monitoring was in place. One of these was a randomised trial which examined the differences in epileptiform discharge rate between two types of anaesthetic (propofol versus sevoflurane) with data captured by a BIS system and a limited 4-lead conventional EEG [29].…”

Section: Peri-operative Literaturementioning

confidence: 99%

“…7 case reports were identified documenting the pEEG parameters from depth of anaesthesia monitoring during clinical seizures or epileptiform appearances on EEG [29,[31][32][33][34][35][36]. These were during anaesthetic induction or the operative phase.…”

Section: Peri-operative Literaturementioning

confidence: 99%

“…Two patterns of change in BIS value during or after the occurrence of seizures were frequently seen in the literature, predominantly in case reports. A rising BIS value during seizure was most commonly reported (9 studies where ictal BIS value was reported) [19][20][21]23,29,30,32,38,39], with a return to expected levels for anaesthesia, often with administration of further sedation and cessation of convulsion if present.…”

Section: Bispectral Index Value and Seizuresmentioning

confidence: 99%

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Processed EEG from depth of anaesthesia monitors and seizures: A scoping review

Gimson¹,

Smith²

2021

Seizure

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Section: Bis Device -Raw Eeg and Cdsa Tracesmentioning

confidence: 87%

Section: Peri-operative Literaturementioning

confidence: 99%

Section: Peri-operative Literaturementioning

confidence: 99%

Section: Bispectral Index Value and Seizuresmentioning

confidence: 99%

See 2 more Smart Citations

Processed EEG from depth of anaesthesia monitors and seizures: A scoping review

Gimson¹,

Smith²

2021

Seizure

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“…Bousselmi et al5 reported a sudden decrease in BIS during generalized tonic-clonic seizures during anesthesia induction, and Chinzei et al6 observed intermittent BIS decreases and increases at 1.5- to 5-minute intervals for nearly 2 hours during surgery in an epileptic patient. Iturri Clavero et al1 observed increases in bilateral BIS values associated with intraoperative generalized and focal seizures during resection of a frontal meningioma.…”

Section: Discussionmentioning

confidence: 99%

Bilateral Bispectral Index Monitoring Performance in the Detection of Seizures in Nonanesthetized Epileptic Patients: An Observational Study

Fàbregas¹,

Valencia

Belda³

et al. 2021

Journal of Neurosurgical Anesthesiology

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Background: The aim of this observational study was to determine whether bilateral bispectral index (BIS) monitoring can detect seizures in epileptic patients. Methods: Four-channel frontal BIS monitoring and standard 40-channel electroencephalography monitoring were conducted in epileptic patients undergoing evaluation for epilepsy surgery. The BIS numerical value, signal quality index, electromyography, suppression ratio, and color density spectral array were continuously recorded. In patients with electroencephalography-confirmed seizures, the mean value and trend (slope of linear regression) of bilateral BIS monitor parameters were analyzed from 1 minute before to 1 minute after seizure onset. Results: Of 48 patients included in the study, 21 (43.8%) had at least 1 seizure. BIS numerical value was not able to detect focal or focal to bilateral tonic-clonic seizures. Considering all seizures, the only significant differences between recordings 1 minute before and 1 minute after seizure onset were a decrease in the signal quality index slope from 1 hemisphere (0.039±0.297 vs. −0.085±0.321, respectively; P=0.029) and in the mean signal quality index recorded from both hemispheres (left hemisphere: 65.775±30.599 vs. 61.032±26.285; P=0.016 and right hemisphere: 63.244±31.985 vs. 59.837±27.360; 0.029); these differences were not maintained after Hochberg adjustment for multiple comparisons. In seizures occurring during sleep, there was a change in the electromyography slope of 1 hemisphere before and after seizure onset (−0.141±0.176 vs. 0.162±0.140, respectively; P=0.038). There were variable responses in BIS parameters in the 3 patients who developed focal nonconvulsive seizure clusters. Conclusion: Bilateral BIS monitoring was not able to detect the occurrence of seizures in epileptic patients.

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Monitorización perioperatoria de la función cerebral, mucho más que «hipnometría»

Clavero¹

2023

Revista Española de Anestesiología y Reanimación

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Use of BIS VISTA™ bilateral monitor for diagnosis of intraoperative seizures, a case report

Cited by 5 publications

References 19 publications

Processed EEG from depth of anaesthesia monitors and seizures: A scoping review

Processed EEG from depth of anaesthesia monitors and seizures: A scoping review

Bilateral Bispectral Index Monitoring Performance in the Detection of Seizures in Nonanesthetized Epileptic Patients: An Observational Study

Monitorización perioperatoria de la función cerebral, mucho más que «hipnometría»

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