Mental Health and Quality of Life in Patients with Untreated Unruptured Intracranial Aneurysms: A Systematic Review and Meta-Analysis of 417,152 Patients with Trial Sequential Analysis

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Introduction: Unruptured intracranial aneurysms (UIAs) can induce psychological stress, leading to anxiety, depression, and impaired quality of life (QoL). Most studies on this topic are limited by small sample sizes, cross-sectional designs, and a focus on treated rather than untreated cases, leaving a gap in the literature. We aimed to conduct a systematic review and meta-analysis to evaluate mental health and QoL outcomes in patients with untreated UIAs. Methods: A systematic search was conducted up to 30 November 2024 using PubMed, Scopus, and Cochrane Central for studies comparing patients with untreated UIAs to a control group. The outcomes of interest included anxiety, depression, and QoL. Statistical analysis was performed using RevMan 5.1.7 and R 4.3.1. Heterogeneity was assessed using I2 statistics and the Cochrane Q test. Risk ratios (RR) and standardized mean differences (SMD) were computed using a frequentist random-effects model. Results: We included five studies with 417,152 patients, of whom 85,668 (20.53%) had untreated UIAs. In the pooled analysis, patients with untreated UIAs had significantly higher anxiety levels (SMD 0.66; 95% CI [0.16; 1.17]; p = 0.01; I2 = 76%) and lower QoL (SMD −0.82; 95% CI [−1.12; −0.53]; p = 0.01; I2 = 56%) compared to the control group However, no statistically significant differences were found in depression (RR 0.94; 95% CI [0.52; 1.72]; p = 0.84; I2 = 88%) between groups. Conclusions: This meta-analysis indicates a potential association between untreated UIAs and increased anxiety levels and reduced QoL. Regarding depression, no significant differences were observed between groups.

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