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Hereditary angioedema: what the gastroenterologist needs to know
1Division of Gastroenterology and Liver Diseases, George Washington University, Washington, DC, USA.
Clinical and Experimental Gastroenterology
|November 28, 2014
Summary
Hereditary angioedema (HAE) frequently causes recurrent abdominal pain, leading to misdiagnosis. Early recognition of HAE symptoms, including abdominal pain and swelling, is crucial for timely and accurate diagnosis.
Area of Science:
- Gastroenterology
- Immunology
- Genetics
Background:
- Hereditary angioedema (HAE) affects up to 93% of patients with recurrent abdominal pain.
- Delayed diagnosis of HAE leads to unnecessary testing and procedures.
- Inconsistent symptoms and attack locations make HAE diagnosis challenging.
Purpose of the Study:
- To highlight the importance of diagnosing hereditary angioedema (HAE) in patients with unexplained abdominal pain.
- To educate gastroenterologists on HAE presentation and diagnostic criteria.
- To emphasize the role of early HAE diagnosis in improving patient outcomes.
Main Methods:
- Review of clinical presentations of HAE with a focus on abdominal attacks.
- Discussion of diagnostic markers including C4 and C1 esterase inhibitor (C1-INH) levels.
- Overview of current and emerging therapeutic strategies for HAE.
Main Results:
- Abdominal pain is a primary symptom in a significant majority of HAE patients.
- Facial/extremity swelling alongside abdominal pain suggests HAE.
- Laboratory tests (C4, C1-INH) and imaging (edematous bowel) aid diagnosis.
Conclusions:
- Gastroenterologists are pivotal in identifying HAE patients presenting with abdominal pain.
- A high index of suspicion for HAE is warranted in unexplained recurrent abdominal pain.
- Prompt diagnosis and management, or referral, are essential for HAE patients.
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