Multicentre audit of ACE-inhibitor associated angioedema (MAAAA).

Background: Angiotensin-converting enzyme (ACE) inhibitors are a commonly used class of medications that are generally well tolerated. However, angioedema, a rare but potentially life-threatening adverse effect, may occur.

Methods: A retrospective audit was performed on patients who presented with angioedema to two emergency departments in Adelaide, Australia.