Angiotensin-converting enzyme inhibitor induced angioedema commonly involves the head and neck area. We report a case of angiotensin-converting enzyme inhibitor induced intestinal angioedema in a heart transplant recipient on mTOR immunosuppression. A 36-year-old Caucasian woman with history of heart transplantation on sirolimus, tacrolimus and prednisone presented to the Emergency Department with abdominal pain, one day following lisinopril initiation. A computer tomography scan demonstrated diffuse bowel wall thickening consistent with pancolitis and edema. She was subsequently diagnosed with angiotensin-converting enzyme inhibitor induced angioedema. Patients on mTOR immunosuppression are at higher risk for this potentially life-threatening side effect. Knowledge of this interaction is critical for providers prescribing mTOR agents.
Keywords: ACE inhibtor; heart transplantation; intestinal angioedema; mTOR inhibitor.
© 2017 The Authors. ESC Heart Failure published by John Wiley & Sons Ltd on behalf of the European Society of Cardiology.