AMelioration of Angiotensin Converting Enzyme Inhibitor Induced Angioedema Study

This is a multicenter study recruiting patients with angioedema induced by ACEI. Open-label treatment with subcutaneous Icatibant compared to a historic group of 47 patients with ACE inhibitor induced angioedema which the investigators have been previously treated in the investigators centers with current \"standard\" therapy (250 mg methylprednisolon and 2 mg clemastine). In cases with fast progression of edema after application the study-drug, a second application with icatibant could be necessary. Rescue medication and intervention.