Angiotensin-converting enzyme (ACE) inhibitors are the leading cause of a drug-induced angioedema. This occurrence is frequently underdiagnosed, but its relapse can be life-threatening. The authors' intention in reporting this clinical case is to sound a warning about reviewing attitudes and surveillance to try to improve patient perioperative safety.

Research and patient care partnerships are an ongoing process. There are various reasons why not all laboratory research translates into clinical applicability. However, mutual knowledge/information can be critical to solving issues relevant to a patient's life. The value of calcium channel blockers when dantrolene was not available for this patient with suspected MH is one such successfully solved question.

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