Background

Dolichoectatic vertebrobasilar fusiform aneurysm (DVBFA) presents a clinical challenge due to its complex anatomical features and associated neurological complications. This meta-analysis evaluates the clinical outcomes of endovascular therapy (EVT), open surgery, and conservative management for DVBFA.

Methods

A systematic review of the PubMed, Scopus, and Web of Science databases on July 18, 2024 was conducted to identify studies reporting on radiologically confirmed DVBFAs. Clinical outcomes were assessed using the modified Rankin Scale (mRS) and mortality rates. Meta-regression was performed to identify potential predictors of treatment outcomes.

Results

Ten studies with 219 patients were analyzed. Of the cohort, 58.4% underwent EVT, 24.6% received open surgery, and 16.9% were managed conservatively. The overall proportion of patients achieving a good clinical outcome (mRS < 3) was 46.8%, with EVT showing the highest proportion at 59.4%, compared to 32.3% for open surgery and 24.7% for conservative management (p = 0.0145). The overall mortality rate was 25.98%, with EVT having the lowest mortality rate at 10.06%, followed by open surgery at 44.44% and conservative management at 63.30% (p = 0.0004). Pre- versus post-treatment subgroup analyses, however, did not reveal significant differences between treatment approaches in outcomes.

Conclusion

EVT appears to provide better clinical outcomes for DVBFAs, though mortality rates remain high across all treatment modalities. The absence of significant differences in subgroup analysis suggests the need for further randomized controlled trials of EVT versus conservative management to establish definitive treatment guidelines.

Search results

Vertebrobasilar dolichoectasia future aspects: A meta-analysis of clinical features and treatment strategies