Angiotensin-converting enzyme inhibitor related angioedema and the anaesthetist

Summary Angioedema of the face and neck is an uncommon but potentially life-threatening complication of angiotensin-converting enzyme (ACE) inhibitor therapy. This condition is of particular concern to the anaesthetist as it can rapidly progress to upper airway obstruction. We describe the presentation and management of five cases of ACE inhibitor related angioedema, all of which were associated with significant upper airway obstruction.