Evaluation of vascular complications after facial filler injection based on injection site: A Systematic Review and Meta-analysis
Pages 183-197
https://doi.org/10.22034/jampbr.2026.572920.1074
Aida Sadeghzadeh
Abstract Abstract
Facial dermal filler injections are increasingly popular for aesthetic enhancement and facial reconstruction, yet they may be associated with serious vascular complications, including skin necrosis, vision impairment, and tissue damage. This systematic review and meta-analysis aimed to evaluate the incidence and severity of vascular adverse events according to injection sites and to identify high-risk facial regions. A comprehensive search was conducted in PubMed, Scopus, Web of Science, and Cochrane Library for studies published up to 2025. Included studies encompassed case reports, case series, cross-sectional, and prospective studies reporting detailed information on injection sites and vascular complications. Data extraction was performed independently by two reviewers, and study quality was assessed using the Newcastle-Ottawa Scale and ROBINS-I tool. Random-effects meta-analysis was employed to estimate the overall prevalence of vascular complications and their association with injection location. Results indicated that the most common vascular adverse events were skin necrosis, severe bruising, and vascular occlusion, with the highest risk observed in the nose, cheeks, and lips. Sensitivity analyses suggested that injector experience and technique significantly influenced complication rates. This systematic review and meta-analysis underscores the importance of anatomical knowledge and careful site selection in facial filler procedures. The findings provide clinical guidance for minimizing vascular complications and enhancing patient safety in aesthetic facial injections.










