Complications of Angioedema
While many cases of angioedema are mild, severe or untreated episodes can lead to life-threatening complications. Understanding these risks and complications of angioedema helps patients seek prompt treatment and avoid recurrence.
1. Airway Obstruction
- The most serious complication
- Swelling of the tongue, throat, or larynx can block airflow, leading to suffocation
- Requires urgent adrenaline and airway support
2. Recurrent Attacks
- Common in hereditary and idiopathic angioedema
- Can impact school, work, and social life
- May require long-term medication and lifestyle changes
3. Abdominal Attacks
- In hereditary cases, swelling in the intestines may cause:
- Severe abdominal pain
- Vomiting and diarrhoea
- Misdiagnosis as appendicitis or IBS
4. Psychological Impact
- Recurrent, unpredictable swelling can lead to:
- Anxiety
- Social withdrawal
- Fear of public episodes
5. Medication-Related Issues
- ACE inhibitor angioedema may recur even after stopping the drug
- Improper treatment (e.g. using only antihistamines for HAE) may delay recovery
Prevention and Monitoring the Complications of Angioedema
- Identify and avoid known triggers
- Always carry emergency medication
- Educate close contacts about signs and first aid
- Follow up regularly with a healthcare provider
With the right diagnosis, care, and emergency plan, most people with angioedema can live safe, active lives.
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Acute Respiratory Distress Syndrome
