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Updated: Jun 13, 2026
Investigations on Alterations of Hippocampal Circuit Function Following Mild Traumatic Brain Injury
Published on: November 19, 2012
[Changes in the hippocampal volume in the acute phase following febrile convulsions in children]
1Department of Pediatric Neurology, Shengjing Hospital, China Medical University, Shenyang 110004, China.
Insights
Children experiencing febrile convulsions (FC) show enlarged hippocampal volumes in the acute phase. This brain imaging finding was consistent for both simple and complex FC cases.
Area of Science:
- Neuroimaging
- Pediatric neurology
- Brain anatomy
Context:
- Febrile convulsions (FC) are common in childhood.
- The hippocampus plays a crucial role in memory and learning.
- Understanding acute brain changes post-FC is important for assessing potential long-term effects.
Purpose:
- To investigate alterations in hippocampal volume during the acute phase following febrile convulsions in children.
- To compare hippocampal volumes between children with and without a history of FC.
- To determine if hippocampal volume differences exist between simple and complex FC.
Summary:
- Brain MRI scans of 30 children with FC (15 simple, 15 complex) and 30 controls were analyzed.
- The study found significantly enlarged hippocampal volumes in children with FC compared to controls.
- No significant difference in hippocampal volume was observed between simple and complex FC groups.
Impact:
- This research highlights acute volumetric changes in the hippocampus following febrile convulsions.
- Findings suggest that hippocampal enlargement is an acute-phase response to FC in children.
- The study contributes to understanding the neurobiological impact of febrile convulsions.
Objective:
To study the changes in the hippocampal volume in the acute phase after febrile convulsions (FC) in children.
Methods:
The brain MRI was performed on 30 children with FC (15 simple and 15 complex) and 30 normal children (control). The hippocampal volume for both sides was compared between groups.
Results:
In the control group, the average volume of the right hippocampus was significantly larger than that of the left side (P<0.05). There was no significant difference in the hippocampal volume between the left and right sides in the FC group. The average volumes of both the left and right hippocampus in the FC group (2.03 + or - 0.25 cm(3) and 2.18 + or - 0.21 cm(3) respectively) were enlarged compared to the control group (1.90 + or - 0.24 cm(3) and 1.97 + or - 0.20 cm(3) respectively) (P<0.05). There was no significant difference in the hippocampal volume between the simple and the complex FC groups.
Conclusions:
The hippocampal volume is enlarged in the acute phase after FC in children. The hippocampal volume in children with simple FC is similar to that in children with complex FC in the acute stage.
