Angiography and embolization for unknown-reason gastrointestinal hemorrhage

Objective To study the value of digital subtract angiography(DSA) and embolization in unknown-reason gastrointestinal hemorrhage.Methods Twenty-three patients with unknown reason gastrointestinal hemorrhage accepted angiography.Embolotheraphy was used after super selective catheterization of the bleeding branch artery.Results DSA showed positive result in 15 of 23 cases(65.22%).Arterial embolization was made in 12 patients after angiography.The bleeding was stopped in 10 cases with an achievement ratio of 83.33%.And no rebleeding was observed in 30 days.Conclusion Selective angiography is valuable for diagnosing gastrointestinal hemorrhage.Embolization is a safe and efficient method.