Splenic Artery Embolization for Variceal Bleeding in Portal Hypertension: A Systematic Review and Metanalysis Publisher Pubmed



Ahmadzade M¹ ; Akhlaghpoor S² ; Rouientan H² ; Hassanzadeh S³ ; Ghorani H³ ; Heidariforoozan M⁴ ; Fathi M⁴ ; Alemi F⁵ ; Nouri S⁶ ; Trinh K⁷ ; Yamada K⁸ ; Ghasemirad M¹
Source: Emergency Radiology Published:2025

Abstract

Purpose: Splenic artery embolization (SAE) has emerged as a promising alternative for managing variceal bleeding secondary to portal hypertension (PH). This study aims to elucidate the significance of SAE in managing esophageal variceal bleeding in patients with PH, providing an overview of its efficacy, safety, and role in PH management. Methods: A systematic review and meta-analysis were conducted in accordance with PRISMA standards. EMBASE, PubMed, Scopus, and Web of Science databases were searched from inception until April 14, 2024. Original observational and clinical studies on SAE in managing variceal bleeding due to PH were included. Meta-analyses were performed using a random-effects model, and publication bias was assessed using regression and rank correlation tests for funnel plot asymmetry. Results: Eighteen studies met the inclusion criteria, encompassing 531 patients. The meta-analysis revealed a significant reduction in variceal bleeding post-SAE (RD = -0.86; 95% CI: -0.97, -0.75; p < 0.001). Complete resolution of varices was observed in 26% of patients (95% CI: 11%, 45%; p = 0.006), and 78% showed improvement in variceal grade (95% CI: 43%, 88%; p < 0.001). SAE significantly increased platelet counts (SMD = 1.15; 95% CI: 0.63, 1.68; p < 0.001). Common complications included post-embolization syndrome, and the overall complication rate was low. Conclusions: This systematic review and meta-analysis study supports the efficacy and safety of SAE in managing variceal bleeding due to PH, demonstrating significant reductions in bleeding, improvements in variceal grade, and increases in platelet counts. © The Author(s), under exclusive licence to American Society of Emergency Radiology (ASER) 2024.