Anxiety and depressive symptoms long after mesial temporal epilepsy surgery: A prospective study

Changes in anxiety after temporal lobe epilepsy surgery: A systematic review and meta-analysis

BACKGROUND

Temporal lobe epilepsy (TLE) is often accompanied by psychiatric manifestations, of which, anxiety is among the most common. While the effects of surgery or ablation on TLE and seizure outcomes, as well as neuropsychological outcomes, have been well studied, anxiety is an exception and has not been systematically examined. Our study aims to systematically review the changes in anxiety before and after TLE surgery.

METHODS

We systematically reviewed the existing literature on anxiety in the setting of TLE. Different electronic databases were queried for studies published until 3rd June 2024.

RESULTS

Eighteen studies with 1403 patients who had refractory TLE and underwent surgical treatment were included. Eight different anxiety scales were used in the included studies, with baseline anxiety rates of 5.3 % to 35.1 %. A significant reduction in anxiety was observed in studies using the Hamilton Anxiety Rating Scale, with a pooled change of -0.87 (95 % CI: -1.26, -0.48, P < 0.001) after surgery. Conversely, the State-Trait Anxiety Inventory (STAI) scores did not show significant changes, with pooled changes of -0.30 (95 % CI: -1.72, 1.12, P = 0.68) for the State (STAI-S) and 0.10 (95 % CI: -1.56, 1.77, P = 0.90) for Trait (STAI-T) anxiety types. Similarly, significant improvements in anxiety were observed on the Hospital Anxiety and Depression Scale, with a pooled change of -0.87 (95 % CI: -1.62, -0.12, P = 0.02) at the last follow-up.

CONCLUSION

Our findings indicate that TLE surgery leads to a significant reduction in anxiety levels, though evidence regarding subgroup differences, such as seizure-free versus non-seizure-free patients, remains limited due to the small number of studies. Additional research is necessary to clarify these findings and further assess the broader effects of surgery on anxiety.

Resective epilepsy surgery and its impact on depression in adults: a systematic review, meta-analysis, and implications for future research

BACKGROUND

How epilepsy surgery influences the bidirectional relationship of epilepsy and depression remains poorly defined.

METHOD

For a better understanding of this question, we conducted a systematic review and meta-analysis of risk ratio on depression prevalence before and after epilepsy surgery, using Preferred Reporting Items for Systematic reviews and Meta-Analyses guidelines. Three databases were comprehensively screened for all studies assessing depression before and after resective surgery in adult epileptic patients until 8 October 2022. Studies were included if depression was assessed before and after epilepsy surgery regardless of the time of follow-up. A total of 1917 studies were screened for eligibility and 91 full-texts up for inclusion; 35 studies were finally included, 25 studies and 2563 patients were included in main meta-analysis and 10 for exploratory analysis. Risk of bias was assessed using Risk Of Bias In Non-randomised Studies - of Interventions (ROBINS-I) from Cochrane. To derive the pooled depression rates before and after surgery, a meta-analysis with inversed-variance was performed using random-effects logistic models with Peto's correction and a 95% CI. Heterogeneity was assessed with Cochran's Q-test along with its derived measure of inconsistency I2.

RESULTS

Overall, the depression rates before and after resective epilepsy surgery were 0.70 (0.53 to 0.91) 95% CI, suggesting that the rate of depression at last follow-up evaluation tends to decrease after Resective Epilepsy Surgery (RES). Subgroup analysis suggest a positive long-term effect appears with a significant lower rates of depression already 6 months (0.61 (0.38 to 0.98)), after surgery which is maintained over time after 1 year (0.53 (0.31 to 0.90)), and after 2 years (0.62 (0.42 to 0.92)).

CONCLUSION

This important finding should be taken in consideration before resective surgery for drug-resistant epilepsies. However, prospective studies should be conducted to characterise which patient, at the individual level, might be at risk of de novo or worsening of depression.

PROSPERO REGISTRATION NUMBER

CRD42022355386.

Influence of Epilepsy Characteristics on the Anxiety Occurrence

The presence of anxiety in individuals with epilepsy significantly influences their medical treatment and quality of life and often goes unrecognized or untreated, posing a challenge to differential diagnosis. The study aimed to investigate the influence of epilepsy characteristics on anxiety. The research involved 155 patients with generalized and focal drug-sensitive [DSE] and drug-resistant [DRE] epilepsy. Hamilton anxiety rating scale [HAS] was used to assess the symptoms of anxiety at three time points [baseline, 12, and 18 months]. DSE patients exhibited significantly lower HAM-A scores than patients with DRE at the initial visit [p = 0.000] after 12 [p = 0.000] and 18-month follow-up [p = 0.000]. Focal DRE patients presented higher HAM-A scores than focal DSE patients in the initial visit [p = 0.000] after 12 [p = 0.000] and 18 months [p = 0.000]. Medication responsiveness, seizure type, and illness duration emerged as significant anxiety predictors [p = 0.000]. After 18 months of follow-up, significant contributors to anxiety were drug responsivity and illness duration [p = 0.000]. The occurrence of anxiety in epilepsy patients is most significantly influenced by well-controlled epilepsy and a positive response to medication.

In-Hospital Symptoms of Depression and Anxiety are Strong Risk Factors for Post-Stroke Depression 90 Days After Ischemic Stroke

Background and Purpose

Acute ischemic stroke (AIS) and depression are the major causes of disability and decreased quality of life worldwide. Psychiatric disorders are common after stroke, especially post-stroke depression (PSD), which affects one-third of survivors. Although frequent, little is known about the real complexity of the pathophysiology and the factors associated with PSD.

Methods

This research aimed to provide data about risk factors and predictors of PSD 90 days after AIS. A cohort study was conducted in a tertiary stroke center located in southern Brazil. We interviewed 148 patients with AIS who were consecutively hospitalized between January 2020 and January 2021. The Hospital Anxiety and Depression Scale (HADS) was applied during hospitalization and at follow-up 90 days after AIS. Furthermore, sociodemographic, clinical, and radiological variables were investigated. Predictive factors were assessed using univariate and multivariate linear regression. The impact of the COVID-19 pandemic on the data was also evaluated.

Results

The frequency of PSD 90 days after AIS was 33.9%. In-hospital symptoms of depression and anxiety each represented a 2-fold risk for PSD at follow-up. Furthermore, the HADS - anxiety score 90 days after AIS was strongly associated with the HADS - depression value 90 days after stroke (R: .71; B: .56; P < .01).

Conclusions

The present study highlighted a noteworthy frequency of PSD 90 days after AIS. Psychiatric variables during hospitalization and in the follow-up appeared to be the leading associated factors with PSD. These data might support the determination of which patients require more psychiatric management.

Psychiatric outcomes after temporal lobe surgery in patients with temporal lobe epilepsy and comorbid psychiatric illness: A systematic review and meta-analysis

BACKGROUND

The currently available evidence is unclear in regard to psychiatric outcomes of temporal lobe epilepsy (TLE) in patients with comorbid psychiatric disorders (PD).

AIM

To identify and synthesize psychiatric outcomes in patients with TLE and comorbid psychiatric illnesses before and after TLE surgery.

METHODS

Studies were included if participants were adults and/or children with temporal epilepsy and comorbid psychiatric illness. Surgical interventions included focal resection (e.g., lobectomy, selective amygdalohippocampectomy) or stereotactic laser ablation. Included studies reported on pre- and post- surgery data of comorbid psychiatric illness (e.g., mood and anxiety disorders, depression, psychosis, adjustment disorders, non-epileptic seizures, and personality disorders).

RESULTS

Ten studies were included in the review. The proportion of patients achieving PD resolution or improvements after surgery varied widely between studies, ranging from 15 % to 57 % at the reported follow-up time. Three studies reported on PD symptom worsening after surgery, with considerable variations of patient proportions across studies. Meta-analysis suggests that 43 % of patients demonstrated improvement and 33 % of patients showed a worsening in psychiatric scores across all studies. Preliminary data from three studies suggest that seizure control may be associated with favourable psychiatric outcomes.

CONCLUSION

A considerable proportion of reported TLE patients with comorbid psychiatric illnesses have improvement in their psychiatric symptoms after temporal lobe epilepsy surgery. There is scarcity of detailed outcome reporting including symptom scores, and to date, predictive factors for favourable vs unfavourable outcomes in this patient population are not clear. Further research on the topic is warranted.

Depression and suicide after temporal lobe epilepsy surgery: A systematic review

Psychiatric comorbidities, including depression and suicide, contribute substantially to the illness burden of patients with refractory temporal lobe epilepsy (TLE). The aim of this systematic review was to synthesize the existing literature assessing the effect of TLE surgery on (1) depression prevalence and (2) severity, and estimating the incidence of (3) de novo depression and (4) attempted and completed suicide following TLE surgery. A literature search was performed using Ovid Medline, Embase, Clarivate Web of Science, Cochrane Library, and ProQuest Dissertations and Theses. Studies of patients with TLE who underwent TLE surgery and reported estimates of at least one of the following outcomes were included: pre- and postoperative depression prevalence or severity, the incidence of postoperative de novo depression, or attempted or completed suicide. The search yielded 2,127 citations related to TLE surgery and postoperative depression or suicide. After a full-text review of 98 articles, 18 met the final eligibility criteria. Most studies reported a reduced or similar prevalence (n = 12) and severity of depression (n = 5) postoperatively, compared with the preoperative period. Eleven studies reported the incidence of postoperative de novo depression, which ranged from 0 % to 38 % over follow-up periods of three months to nine years. Four studies assessed the incidence of postoperative attempted or completed suicide, with completed suicide incidence ranging from 0 % to 3 % over follow-up periods of one to four years. Overall, the effect of TLE surgery on depression and suicide remains unclear, as many studies did not assess the statistical significance of depression prevalence or severity changes following TLE surgery. Therefore, timely psychosocial follow-up for patients after TLE surgery should be considered. Future longitudinal studies with consistent measures are needed to elucidate the effect of TLE surgery on the prevalence and severity of depression and estimate the incidence of de novo depression and suicide following surgery.