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Cited by 334

The DOI matches its Crossref record; 50 of the 50 references it cites were found in a registry or an index.

Increase in extracellular glutamate caused by reduced cerebral perfusion pressure and seizures after human traumatic brain injury: a microdialysis study

Vespa, Paul, Prins, Mayumi, Ronne-Engstrom, Elizabeth, Caron, Michael, Shalmon, Ehud, Hovda, David A., Martin, Neil A., Becker, Donald P.·1998·Journal of Neurosurgery

Abstract

Object. To determine the extent and duration of change in extracellular glutamate levels after human traumatic brain injury (TBI), 17 severely brain injured adults underwent implantation of a cerebral microdialysis probe and systematic sampling was conducted for 1 to 9 days postinjury. Methods. A total of 772 hourly microdialysis samples were obtained in 17 patients (median Glasgow Coma Scale score 5 ± 2.5, mean age 39.4 ± 20.4 years). The mean (± standard deviation) glutamate levels in the dialysate were evaluated for 9 days, during which the mean peak concentration reached 25.4 ± 13.7 (µM on postinjury Day 3. In each patient transient elevations in glutamate were seen each day. However, these elevations were most commonly seen on Day 3. In all patients there was a mean of 4.5 ± 2.5 transient elevations in glutamate lasting a mean duration of 4.4 ± 4.9 hours. These increases were seen in conjunction with seizure activity. However, in many seizure-free patients the increase in extracellular glutamate occurred when cerebral perfusion pressure was less than 70 mm Hg (p < 0.001). Given the potential injury-induced uncoupling of cerebral blood flow and metabolism after TBI, these increases in extracellular glutamate may reflect a degree of enhanced cellular crisis, which in severe head injury in humans appears to last up to 9 days. Conclusions. Extracellular neurochemical measurements of excitatory amino acids may provide a marker for secondary insults that can compound human TBI.

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Metadata

Authors
Vespa, P., Prins, M., Ronne-Engstrom, E., Caron, M., Shalmon, E., Hovda, D. A., Martin, N. A., & Becker, D. P.
Venue
Journal of Neurosurgery
Published
1998-12
Volume
89
Issue
6
Pages
971-982
ISSN
0022-3085 (ISSN-L)
OpenAlex
W2085360535
Cited by
334
References
50
FWCI
11.12
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Increase in extracellular glutamate caused by reduced cerebral perfusion pressure and seizures after human traumatic brain injury: a microdialysis study. https://app.cochat.ai/papers/10.3171/jns.1998.89.6.0971
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Vespa, P., Prins, M., Ronne-Engstrom, E., Caron, M., Shalmon, E., Hovda, D. A., Martin, N. A., & Becker, D. P. (1998). Increase in extracellular glutamate caused by reduced cerebral perfusion pressure and seizures after human traumatic brain injury: a microdialysis study. Journal of Neurosurgery. https://doi.org/10.3171/jns.1998.89.6.0971

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.