Recognition
- Large, circumscribed areas of deep swelling. Puffy and warm skin
- Often asymmetrical — may affect only one side of the face or part of a lip
- May appear without hives and therefore may not be itchy (distinguishes from urticaria)
- Swelling of the tongue or throat with difficulty swallowing (dysphagia) or wheezing indicates airway involvement
- Severe nausea, vomiting, or watery diarrhea (GI mucosal involvement)
- Rapid onset with resolution typically within 72 hours
- Triggers: Allergens (foods, insect venoms), medications (ACE inhibitors, aspirin, NSAIDs), or hereditary (C1-inhibitor deficiency — HAE)
MT Relevance
- Acute angioedema contraindicates massage — increasing blood flow to congested areas is counterproductive and potentially dangerous
- Clients with a history of angioedema require thorough allergen screening at intake: audit medications (ACE inhibitors, aspirin, NSAIDs), food allergies, and family history of sudden swelling (screens for HAE)
- Use hypoallergenic, scent-free lubricants. Avoid all nut-based oils. Conduct a 30-minute skin patch test with any new product
- Chronic antihistamine users may have a side effect of anemia leading to easier bruising — adjust pressure
Required Actions
- If swelling affects the face, neck, tongue, or throat and breathing becomes difficult: Activate emergency protocols immediately. Call 911. Position the client supine (sitting can compromise venous return)
- If a mild localized reaction occurs during treatment: Stop immediately, remove the lubricant with water, and monitor for 15 minutes for any progression to systemic signs
- If the client reports a history of HAE: Ensure they have their prescribed emergency medication (C1-inhibitor concentrate or icatibant) accessible during the session
Key Takeaways
- Acute angioedema contraindicates massage. Increasing blood flow to congested areas is counterproductive.
- Airway involvement (swelling of tongue, throat, or larynx with breathing difficulty) requires immediate emergency response.
- Angioedema is distinguished from urticaria by deeper tissue involvement and tendency to be asymmetrical and non-itchy.
- ACE inhibitors, aspirin, and NSAIDs are common medication triggers. Always audit medications during intake.
- Conduct a 30-minute skin patch test with any new lubricant for clients with a history of angioedema.