Background: This study analyzed the outcomes for clinical application of transarterial embolization (TAE) to treat intractable posttraumatic oronasal hemorrhage in patients who suffered from craniofacial injuries.

Methods: The charts and radiologic and operative records of 34 patients from January 2002 to December 2007 were retrospectively reviewed. Inclusion criteria focused on the patients whose intractable posttraumatic oronasal hemorrhage associated with craniofacial trauma required TAE treatment. The patients' survival was correlated with prognostic factors with Spearman's rank correlation coefficients. Wilcoxon signed ranks test was used to analyze the differences between the severity of shock before and after TAE, and Fisher's exact test was used to analyze unvaried factors.

Results: TAE successfully stopped the posttraumatic oronasal hemorrhage in 27 of 34 patients (79.4%). The internal maxillary artery was the most common hemorrhaging vessel requiring embolization. Successful hemostasis by TAE significantly contributed to patient survival (p = 0.001). In addition, higher Glasgow Coma Scale score (>/=8) at presentation, lower shock index (calculated as heart rate/systolic blood pressure;

Conclusions: TAE may stop intractable posttraumatic oronasal hemorrhage when conventional packing fails to achieve hemostasis. Glasgow Coma Scale score at presentation, shock index before and after TAE, injury severity score, and need for emergent laparotomy can be used to predict the patient prognosis.