Acquired Angioedema

12 min read

Acquired angioedema is a rare condition that affects the skin and mucous membranes. It is caused by an abnormal immune response, which leads to swelling of the affected areas. It is not the same as hereditary angioedema, which is caused by a genetic mutation. Acquired angioedema is more common in adults than in children, and it can be triggered by certain medications, infections, or other medical conditions.

Causes of Acquired Angioedema

The exact cause of acquired angioedema is not known, but it is believed to be caused by an abnormal immune response. This can be triggered by certain medications, infections, or other medical conditions. Some of the most common triggers include:

  • Certain medications, such as ACE inhibitors, non-steroidal anti-inflammatory drugs (NSAIDs), and antibiotics
  • Infections, such as HIV, hepatitis, and Lyme disease
  • Autoimmune disorders, such as lupus and rheumatoid arthritis
  • Allergies
  • Cancer

Diagnosis of Acquired Angioedema

Acquired angioedema is diagnosed based on a physical examination and a review of the patient's medical history. The doctor may also order blood tests, skin tests, or other tests to rule out other conditions. In some cases, a biopsy may be necessary to confirm the diagnosis.

Complications of Acquired Angioedema

The most serious complication of acquired angioedema is airway obstruction, which can be life-threatening. Other complications include skin infections, scarring, and tissue damage. In some cases, the swelling can be so severe that it can cause permanent disfigurement.

Prevention of Acquired Angioedema

The best way to prevent acquired angioedema is to avoid triggers, such as certain medications, infections, and other medical conditions. It is also important to practice good hygiene and to get regular check-ups to monitor for any changes in the condition.

Take the Acquired Angioedema Assessment

Symptoms

Swelling

The most common symptom of acquired angioedema is swelling. This swelling can occur in the face, lips, tongue, throat, and other parts of the body. It can be painful and can cause difficulty breathing. Swelling can also occur in the abdomen, causing abdominal pain, nausea, and vomiting.

Hives

Hives are another common symptom of acquired angioedema. Hives are raised, red, itchy bumps on the skin that can appear anywhere on the body. They can be very itchy and can last for several hours or days.

Other Symptoms

Other symptoms of acquired angioedema can include fatigue, fever, joint pain, and difficulty swallowing. In some cases, acquired angioedema can cause anaphylaxis, a life-threatening allergic reaction that can cause difficulty breathing, a drop in blood pressure, and shock.

When to See a Doctor

If you experience any of the symptoms of acquired angioedema, it is important to seek medical attention right away. Your doctor can diagnose the condition and recommend treatment to help reduce the symptoms and prevent future episodes.

Causes

Allergies

Allergies are one of the most common causes of acquired angioedema. Allergens such as pollen, dust, and certain foods can trigger an allergic reaction, which can lead to swelling in the face, throat, and other parts of the body. Allergies can also be triggered by medications, such as antibiotics and aspirin.

Infections

Infections, such as the common cold, can also cause acquired angioedema. Viruses and bacteria can cause inflammation in the body, which can lead to swelling in the face, throat, and other parts of the body. In some cases, the infection can be severe enough to cause anaphylaxis, a life-threatening allergic reaction.

Autoimmune Disorders

Autoimmune disorders, such as lupus and rheumatoid arthritis, can also cause acquired angioedema. These disorders cause the body’s immune system to attack its own tissues, which can lead to inflammation and swelling in the face, throat, and other parts of the body.

Hormonal Imbalances

Hormonal imbalances, such as those caused by pregnancy or menopause, can also cause acquired angioedema. Hormones play an important role in regulating the body’s immune system, and an imbalance can lead to inflammation and swelling in the face, throat, and other parts of the body.

Medications

Certain medications, such as ACE inhibitors and beta blockers, can also cause acquired angioedema. These medications can interfere with the body’s ability to regulate its immune system, which can lead to inflammation and swelling in the face, throat, and other parts of the body.

Genetic Factors

Genetic factors can also play a role in acquired angioedema. Certain genetic mutations can cause the body’s immune system to malfunction, which can lead to inflammation and swelling in the face, throat, and other parts of the body.

Getting a Diagnosis

Blood Tests

Blood tests can help diagnose acquired angioedema. Your doctor may order a complete blood count (CBC) to check for signs of infection or inflammation. They may also order tests to measure levels of C1-esterase inhibitor, a protein that helps regulate the immune system. Low levels of this protein can indicate acquired angioedema.

Skin Tests

Skin tests can also be used to diagnose acquired angioedema. Your doctor may perform a skin prick test, which involves pricking the skin with a needle and then introducing a small amount of an allergen. If you have acquired angioedema, the area around the prick will become red and swollen. Your doctor may also perform a patch test, which involves placing a patch containing an allergen on the skin and then monitoring the area for signs of swelling.

Imaging Tests

Imaging tests such as X-rays, CT scans, and MRIs can help diagnose acquired angioedema. These tests can help your doctor identify any underlying conditions that may be causing the swelling. They can also help rule out other conditions that may be causing similar symptoms.

Conclusion

Acquired angioedema is a rare condition that can be difficult to diagnose. Your doctor may use a combination of blood tests, skin tests, and imaging tests to diagnose the condition. If you experience any of the symptoms associated with acquired angioedema, it is important to seek medical attention as soon as possible.

Questions for Your Doctor

Symptoms

Be sure to tell your doctor about any symptoms you are experiencing. This includes any swelling, pain, itching, or other changes in your body. It is also important to tell your doctor if you have any other medical conditions that may be related to your acquired angioedema.

Treatment Options

Your doctor will likely discuss treatment options with you. These may include medications, lifestyle changes, or other therapies. Be sure to ask your doctor about the risks and benefits of each option so that you can make an informed decision.

Follow-up Care

It is important to follow up with your doctor regularly to monitor your condition. Ask your doctor how often you should come in for check-ups and what tests you should have done. This will help ensure that your condition is being managed properly.

Questions and Concerns

Be sure to ask your doctor any questions or express any concerns you may have about your condition. Your doctor is there to help you, so don’t be afraid to speak up. This will help ensure that you get the best care possible.

Treatment

Medications

The most common medications used to treat acquired angioedema are antihistamines and corticosteroids. Antihistamines work by blocking the action of histamine, a chemical released by the body during an allergic reaction. Corticosteroids reduce inflammation and can help reduce the severity of the swelling. In some cases, immunosuppressants may be prescribed to help reduce the body’s immune response.

Plasma Exchange

Plasma exchange is a procedure in which the patient’s blood is removed and replaced with donor plasma. This helps to reduce the levels of antibodies that are causing the swelling. Plasma exchange is usually done in a hospital setting and can be used in combination with other treatments.

Immunoglobulin Therapy

Immunoglobulin therapy is a treatment that involves injecting the patient with antibodies from a donor. This helps to reduce the body’s immune response and can help reduce the severity of the swelling. Immunoglobulin therapy is usually done in a hospital setting and can be used in combination with other treatments.

Surgery

In some cases, surgery may be necessary to treat acquired angioedema. Surgery can be used to remove the affected tissue or to repair any damage caused by the swelling. Surgery is usually done in a hospital setting and can be used in combination with other treatments.

Lifestyle Changes

Making lifestyle changes can also help to manage the symptoms of acquired angioedema. Avoiding triggers such as certain foods, stress, and certain medications can help reduce the severity of the swelling. Eating a healthy diet, getting regular exercise, and managing stress can also help to reduce the symptoms.

Conclusion

Acquired angioedema is a rare condition that can cause swelling in the face, throat, and other parts of the body. Fortunately, there are treatments available to help manage the symptoms of acquired angioedema. Medications, plasma exchange, immunoglobulin therapy, surgery, and lifestyle changes can all be used to help reduce the severity of the swelling.

Drugs & Medications

C1-Inhibitor Replacement Therapy

C1-inhibitor replacement therapy is the most common treatment for acquired angioedema. This therapy replaces the missing or deficient C1-inhibitor protein in the body. C1-inhibitor replacement therapy is usually given as an intravenous infusion, but it can also be given as a subcutaneous injection. The most commonly used C1-inhibitor replacement therapy is Cinryze.

Antihistamines

Antihistamines are drugs that block the action of histamine, a chemical released by the body during an allergic reaction. Antihistamines can help reduce the swelling associated with acquired angioedema. The most commonly used antihistamines are diphenhydramine (Benadryl) and cetirizine (Zyrtec).

Corticosteroids

Corticosteroids are drugs that reduce inflammation. They can be used to treat acquired angioedema, but they should only be used in severe cases. Commonly used corticosteroids include prednisone and methylprednisolone.

ACE Inhibitors

ACE inhibitors are drugs that block the action of angiotensin-converting enzyme (ACE). ACE is a hormone that causes blood vessels to constrict, which can lead to swelling. ACE inhibitors can help reduce the swelling associated with acquired angioedema. Commonly used ACE inhibitors include lisinopril and ramipril.

Conclusion

Acquired angioedema is a rare condition that can be life-threatening if not treated quickly. Fortunately, there are several drugs available to help manage the symptoms of acquired angioedema. These include C1-inhibitor replacement therapy, antihistamines, corticosteroids, and ACE inhibitors.

Diet

What to Eat

A healthy diet for acquired angioedema should include plenty of fruits, vegetables, whole grains, and lean proteins. Eating a variety of foods can help ensure that you get all the nutrients you need. Here are some specific foods to include in your diet:

  • Fruits: Apples, oranges, bananas, berries, and other fresh fruits
  • Vegetables: Leafy greens, broccoli, carrots, sweet potatoes, and other vegetables
  • Whole grains: Oats, quinoa, brown rice, and other whole grains
  • Lean proteins: Fish, chicken, beans, and other lean proteins
  • Healthy fats: Avocados, nuts, and seeds

What to Avoid

Certain foods can trigger flare-ups of acquired angioedema. It’s important to avoid these foods to reduce your risk of a reaction. Here are some foods to avoid:

  • Processed foods: Packaged snacks, frozen meals, and other processed foods
  • Sugary drinks: Soda, energy drinks, and other sugary beverages
  • Refined carbs: White bread, pastries, and other refined carbs
  • High-sodium foods: Canned soups, cured meats, and other high-sodium foods
  • Alcohol: Beer, wine, and other alcoholic beverages

Conclusion

Eating a healthy diet can help manage the symptoms of acquired angioedema and reduce the risk of flare-ups. Include plenty of fruits, vegetables, whole grains, and lean proteins in your diet. Avoid processed foods, sugary drinks, refined carbs, high-sodium foods, and alcohol.

Lifestyle

Eat a Healthy Diet

Eating a healthy diet can help reduce the risk of acquired angioedema. Eating a balanced diet that includes plenty of fruits, vegetables, and whole grains can help reduce inflammation and improve overall health. Avoiding processed foods and foods high in sugar can also help reduce the risk of acquired angioedema.

Exercise Regularly

Regular exercise can help reduce the risk of acquired angioedema. Exercise can help reduce inflammation and improve overall health. Aim for at least 30 minutes of moderate exercise each day. This can include walking, jogging, swimming, or cycling.

Reduce Stress

Stress can worsen the symptoms of acquired angioedema. It is important to find ways to reduce stress in your life. This can include activities such as yoga, meditation, or deep breathing. Taking time for yourself and engaging in activities that you enjoy can also help reduce stress.

Get Enough Sleep

Getting enough sleep is important for managing acquired angioedema. Aim for at least 7-8 hours of sleep each night. Avoiding caffeine and alcohol before bed can help improve sleep quality. Creating a relaxing bedtime routine can also help you get a better night’s sleep.

Talk to Your Doctor

If you are experiencing symptoms of acquired angioedema, it is important to talk to your doctor. Your doctor can help you develop a treatment plan that is tailored to your needs. They can also provide advice on lifestyle changes that can help reduce the risk of acquired angioedema.