Epilepsy Surgery Often Improves Mood And Quality Of Life

What was studied

This study was a systematic review and meta-analysis. That means the researchers gathered and combined results from earlier studies to look at neuropsychiatric outcomes after epilepsy surgery in adults.

They searched major medical databases through December 2024 and included 42 cohort studies with 6,218 adults who had epilepsy surgery and were followed for at least 3 months. The review looked at depression, anxiety, psychosis, cognition, quality of life, and psychosocial adjustment. Twenty-six studies contributed data to the quantitative meta-analyses.

What they found

Overall, depression symptoms improved a small-to-moderate amount after surgery. The improvement was larger in people who became seizure-free after surgery, while people with persistent seizures did not show a significant change.

De novo psychiatric disorders after surgery occurred in about 16.3% of patients. The most common were depression (9.8%), anxiety (7.1%), and psychosis (2.7%). Epilepsy-related psychoses decreased from 17.5% before surgery to 4.2% after surgery.

Memory results were mixed. After temporal lobe surgery, verbal memory decline was reported in about 17% to 37% of patients. Among seizure-free patients, this decline did not independently affect quality of life, and about 20% of seizure-free patients with left temporal lobe epilepsy showed improvement in verbal memory.

Quality of life improved over 5 years in seizure-free patients. Across the review, seizure freedom was identified as the primary determinant of better neuropsychiatric outcomes.

Limits of the evidence

This review combined cohort studies, not randomized trials, so it cannot show with certainty that surgery itself caused all of the changes.

Not all studies measured the same outcomes in the same way, and only 26 of the 42 studies contributed to the pooled analyses. Some results, especially for cognition and psychosocial adjustment, may be less precise because of differences in tests, follow-up times, and patient groups.

The review only included adults, so the findings may not apply to children or teens. The abstract also does not provide detailed information about surgery types, epilepsy causes, or symptom severity before surgery, which limits how specific the conclusions can be.

For families and caregivers

For families considering epilepsy surgery, this review suggests that surgery may be associated with better mood, less psychosis, and better quality of life, especially when surgery leads to seizure freedom. That may help when weighing possible benefits beyond seizure control.

At the same time, some people develop new mental health problems after surgery, and some have memory decline, especially after temporal lobe surgery. This means mental health screening before surgery and follow-up afterward are important parts of care.

The findings may help families ask balanced questions about both seizure outcomes and emotional, thinking, and day-to-day functioning after surgery.

What to watch next

Future studies using the same mental health and memory measures over time, and reporting results separately by seizure outcome and surgery type, could help clarify these outcomes further.

Terms in this summary

systematic review

A study that collects and evaluates all relevant research on a question using a planned method.

meta-analysis

A statistical method that combines results from multiple studies to estimate an overall effect.

cohort study

A study that follows a group of people over time to see what happens to them.

psychosis

A serious mental health condition that can involve losing touch with reality, such as having hallucinations or false beliefs.

temporal lobe

A part of the brain involved in memory, language, and seizures in some forms of epilepsy.

verbal memory

The ability to remember words and spoken information.

quality of life

A person's overall well-being in daily life, including physical, emotional, and social health.

seizure-free

Having no seizures for a period of time after treatment.