Executive Functioning Following Mesial Temporal Lobe Resective Surgery: A Systematic Review.

Area of Science:

• Neuroscience
• Epileptology
• Cognitive Science

Background:

• Mesial temporal lobe epilepsy (MTLE) surgery is a standard treatment for seizure control.
• Cognitive changes beyond memory and language deficits can occur post-surgery.
• Executive functioning is a critical cognitive domain potentially affected by MTLE and its treatment.

Purpose of the Study:

• To systematically review executive functioning changes after MTLE resective surgery.
• To understand the impact of MTLE surgery on executive domains.
• To explore the relationship between seizure freedom and executive performance.

Main Methods:

• Systematic review of studies assessing executive functioning pre- and postoperatively.
• Inclusion of patients aged 15 years and over undergoing MTLE resective surgery.
• Literature search conducted across PubMed, Elsevier, and Google Scholar databases.

Main Results:

• Patients with refractory MTLE exhibit executive deficits prior to surgery.
• Postoperative executive performance shows variability.
• Seizure freedom correlates with improvements in executive functioning.

Conclusions:

• MTLE surgery can lead to executive function improvements, particularly when seizure freedom is achieved.
• Reduced epileptic neural noise propagation from temporolimbic to frontal areas may underlie cognitive gains.
• Further research is needed to fully elucidate the neurocognitive effects of MTLE surgery.