Original Research
Sunday, October 13, 2024
12:45 PM–02:15 PM
Abstract
Introduction:
Angioedema results in more than 100,000 emergency department (ED) visits in the United States each year and may progress to life-threatening airway edema requiring intubation. Initial treatment for angiotensin-converting enzyme (ACE) inhibitor-induced angioedema (ACEi-AE) focuses on airway management and administration of bradykinin-targeted therapies such as tranexamic acid (TXA). The successful use of TXA for this indication has been previously described; however, it has not been adopted as part of the pharmacologic standard of care.
Research Question or Hypothesis: The purpose of this study was to describe the use of TXA for treatment of ACEi-AE in the ED.
Study Design: This was an institutional review board-approved, single-center, retrospective evaluation of patients aged 18 years or older who presented with ACEi-AE.
Methods: Patients who were admitted and discharged between April 1, 2021 and November 30, 2023 were screened and included if they had a recent history of ACE inhibitor use and were treated with TXA in the ED. Patients were excluded if they had a family history of hereditary or acquired angioedema; received icatibant, ecallantide, or complement-1 esterase inhibitors prior to TXA administration; or were admitted to Trauma services. Descriptive statistics are used to report all outcomes.
Results: A total of 56 patients were included in this study. Over 90% of patients experienced partial or complete resolution of symptoms following TXA administration. Three patients required intubation. Forty-eight percent of patients were transferred to the floor while 34% were discharged home from the ED. All patients survived to hospital discharge. Five patients returned to the ED within 90 days for a recurrent angioedema episode.
Conclusion: Administration of TXA to patients presenting to the ED with ACEi-AE was associated with partial or complete resolution of symptoms. These findings may support incorporation of TXA into standard of care for ACEi-AE in the ED.
Presenting Author
Shannon Hasara PharmDLakeland Regional Health
Authors
John Amatea MD
Lakeland Regional Health Medical Center
Kayla Wilson PharmD
Lakeland Regional Health Medical Center