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Updated: Feb 15, 2026
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Anteromesial Temporal Lobectomy for Medically Intractable Temporal Lobe Epilepsy: An Operative Study
Published on: August 15, 2025
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Dynamic patterns of verbal memory function after an initial decline following temporal lobe resection against
Pia Langenberg1,2,3, Lea M Reisch3, Johanna L Hopf3
1Bielefeld University, Medical School OWL, Clinical Neuropsychology and Epilepsy Research, Bielefeld, Germany.
Epilepsia
|February 14, 2026
Summary
Following temporal lobe resection (TLR) for epilepsy, verbal memory decline is common, especially after dominant hemisphere surgery. Women show better late memory recovery than men, highlighting sex-specific differences in cognitive outcomes.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Neurosurgery
Background:
- Temporal lobe epilepsy (TLE) affects millions globally, often necessitating surgical intervention like temporal lobe resection (TLR).
- Postoperative cognitive function, particularly verbal memory, is a critical concern for patients with TLE undergoing TLR.
- Understanding the dynamics of verbal memory changes after TLR is crucial for patient management and counseling.
Purpose of the Study:
- To investigate the postoperative trajectory of verbal memory function in people with TLE (PwTLE) after TLR.
- To specifically examine the course of verbal memory following an initial decline and identify factors influencing late recovery.
- To explore potential sex-dependent differences in cognitive recovery after TLR.
Main Methods:
- Retrospective analysis of verbal memory performance in 169 PwTLE at three time points: preoperatively, 6 months postoperatively, and 24 months postoperatively.
- Group-level analysis using repeated measures ANOVA to compare verbal memory changes between language-dominant and language-nondominant resected hemispheres.
- Individual-level analysis to assess patterns of memory change and identify factors influencing late recovery in the language-dominant resected group.
Main Results:
- A significant interaction effect between time point and resected hemisphere was observed, with significant verbal memory declines in the language-dominant resected group.
- Individual analyses revealed diverse patterns of verbal memory change, including improvement, stability, and decline.
- In language-dominant resected PwTLE experiencing initial memory decline, women demonstrated significantly better late recovery (at 24 months) compared to men.
Conclusions:
- Verbal memory trajectories after TLR are highly individualized, especially following an initial decline.
- Sex is a significant factor influencing late postoperative verbal memory recovery, with females showing enhanced improvement.
- These findings emphasize the need for personalized presurgical counseling and post-surgical care strategies for PwTLE, considering sex-specific cognitive recovery patterns.
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