I have hereditary angioedema. How to prevent HAE attacks?

Hello,

Welcome to icliniq.com.

I read your query and understood your concern.

Hereditary angioedema (HAE) is a rare condition where swelling can happen in different parts of the body, sometimes without a clear trigger. Attacks in the throat can be dangerous, so having an emergency plan is very important.

Certain things, such as stress, infections, minor injuries, some medicines, hormonal changes like menstruation or pregnancy, can increase the risk of episodes. With proper prevention and quick treatment when needed, the risk can be greatly reduced.

The probable cause is a deficiency or dysfunction of C1 (complement component 1) esterase inhibitor, leading to increased bradykinin and swelling episodes.

Investigations to be done are as follows:

1. C4 complement level (usually low in HAE).

2. C1 inhibitor level and function tests.

3. Regular monitoring as advised by your treating specialist.

Differential diagnosis includes:

1. Allergic angioedema.

2. Acquired angioedema.

3. Idiopathic non-histaminergic angioedema.

The treatment plan is as follows:

1. Identify and avoid known triggers where possible.

2. Keep prescribed on-demand medicines (such as C1 inhibitor concentrate or Icatibant injection) readily available, and use only as instructed by your specialist.

3. Avoid ACE (angiotensin-converting enzyme) inhibitors and estrogen-containing medications as they can trigger attacks.

4. Discuss with your specialist about long-term preventive therapy if attacks are frequent.

5. Inform family and close contacts about your condition and emergency steps.

Preventive measures are as follows:

1. Maintain good hydration and manage stress.

2. Treat infections promptly.

3. Wear a medical alert bracelet or card.

4. For menstruation or pregnancy, work closely with your doctor as dose adjustments or preventive steps may be needed.

Please update me with your current medication list and any recent test results so we can review your prevention plan. Given the throat swelling risk, you should also have regular follow-ups with an immunologist or allergist experienced in HAE for both preventive and emergency management.

I hope that this answers your query.

Kindly follow up if you have more doubts.

Thank you.