Intraoperative electroencephalography burst suppression during endoscopic third ventriculostomy: Case report and implications for neuromonitoring.
- 1Department of Neurosurgery, UCL St Luc, Brussels, Belgium.
Abstract
Background
Endoscopic third ventriculostomy (ETV) is a common treatment for obstructive hydrocephalus. Intraoperative hemodynamic disturbances are well recognized. Their concurrent association with cortical suppression on electroencephalography (EEG), particularly burst suppression, has rarely been reported, and intraoperative EEG is seldom used during ETV.Case description
A 28-year-old woman underwent ETV for obstructive hydrocephalus secondary to a tectal glioma. Shortly after endoscope insertion and ventricular irrigation, she developed two successive episodes of severe tachycardia and an acute hypertensive crisis, each coinciding with an abrupt bilateral fall in fronto-temporal electrocortical activity with burst suppression on two-channel processed EEG. Irrigation was stopped and the endoscope was withdrawn. Systemic hemodynamics normalized within 15 min, whereas the EEG required 55 min to recover. The patient recovered to near-baseline within 4 h.Conclusion
This report represents only the second published case coupling an acute intraoperative hemodynamic surge with bilateral EEG burst suppression during ETV. Processed intraoperative EEG may be an additional early sign of an acute disturbance of cerebral function. Its added value remains unproven, since a hemodynamic emergency already mandates cessation of irrigation and endoscope withdrawal. Prospective evaluation with finer temporal sampling and raw-EEG recording is warranted.
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BibTeX
@article{dellisse2026intraoperative,
title = {{Intraoperative electroencephalography burst suppression during endoscopic third ventriculostomy: Case report and implications for neuromonitoring.}},
author = {Quentin Dellisse and Patrice Finet},
journal = {Surgical neurology international},
year = {2026},
month = oct,
doi = {10.25259/sni_966_2026},
url = {https://europepmc.org/article/MED/42974271},
note = {CC BY-NC-SA},
}
RIS
TY - JOUR
TI - Intraoperative electroencephalography burst suppression during endoscopic third ventriculostomy: Case report and implications for neuromonitoring.
AU - Quentin Dellisse
AU - Patrice Finet
PY - 2026
DA - 2026/10/09
JO - Surgical neurology international
DO - 10.25259/sni_966_2026
UR - https://europepmc.org/article/MED/42974271
AB - Background Endoscopic third ventriculostomy (ETV) is a common treatment for obstructive hydrocephalus. Intraoperative hemodynamic disturbances are well recognized. Their concurrent association with cortical suppression on electroencephalography (EEG), particularly burst suppression, has rarely been reported, and intraoperative EEG is seldom used during ETV.Case description A 28-year-old woman underwent ETV for obstructive hydrocephalus secondary to a tectal glioma. Shortly after endoscope insertion and ventricular irrigation, she developed two successive episodes of severe tachycardia and an acute hypertensive crisis, each coinciding with an abrupt bilateral fall in fronto-temporal electrocortical activity with burst suppression on two-channel processed EEG. Irrigation was stopped and the endoscope was withdrawn. Systemic hemodynamics normalized within 15 min, whereas the EEG required 55 min to recover. The patient recovered to near-baseline within 4 h.Conclusion This report represents only the second published case coupling an acute intraoperative hemodynamic surge with bilateral EEG burst suppression during ETV. Processed intraoperative EEG may be an additional early sign of an acute disturbance of cerebral function. Its added value remains unproven, since a hemodynamic emergency already mandates cessation of irrigation and endoscope withdrawal. Prospective evaluation with finer temporal sampling and raw-EEG recording is warranted.
SN - 2229-5097
SN - 2152-7806
ER -