Angioedema Treatment and Management in Singapore
Angioedema is a condition characterised by episodes of sudden swelling that most commonly affect the face, lips, eyelids and tongue. Because these symptoms can resemble allergic reactions, hives and other causes of swelling, identifying the underlying cause is an important part of diagnosis and treatment.
At Aaria Rheumatology, we provide specialist assessment to determine what may be triggering angioedema, so we can develop a personalised treatment plan for long-term management.
What Is Angioedema?
Angioedema occurs when fluid leaks from small blood vessels into the deeper layers of the skin or the lining of the body’s tissues, leading to sudden, localised swelling. Unlike hives, which affect the surface of the skin, angioedema involves deeper tissues and most commonly affects the face, lips, eyelids and tongue. It can also occur in the hands, feet, throat or other areas of the body.
Depending on the underlying cause, episodes may develop over minutes to hours and typically last from several hours to a few days before gradually resolving. While swelling is often uncomfortable rather than serious, angioedema affecting the throat or airways can interfere with breathing and requires immediate medical attention.
Angioedema may occur on its own or alongside hives, depending on the underlying cause. Identifying why the swelling is occurring is an important part of determining the most appropriate treatment and helping to prevent future episodes.
What Are the Symptoms of Angioedema?
The symptoms of angioedema vary depending on the area affected and the underlying cause. Common symptoms include:
Common symptoms include:
Swelling of the lips, eyelids, face or tongue
Swelling of the hands, feet or genitals
Tightness, discomfort or a feeling of fullness in the affected area
Warmth or mild redness over the swollen skin
Abdominal pain, nausea or vomiting when the digestive tract is affected
Angioedema may occur on its own or together with hives, depending on the underlying cause. If swelling affects the throat or airways, symptoms such as difficulty breathing, difficulty swallowing or changes in the voice require immediate emergency medical attention.
What Causes or Triggers Angioedema?
Angioedema develops when substances in the body cause the small blood vessels to become more permeable, allowing fluid to leak into the deeper layers of the skin and surrounding tissues. Different mechanisms can trigger this process, including:
Allergic Reactions
The immune system releases histamine in response to allergens such as certain foods, medications, insect stings or latex.
Medications
Certain medications, particularly angiotensin-converting enzyme (ACE) inhibitors, can increase levels of bradykinin, a substance that promotes swelling.
Hereditary angioedema
A rare inherited condition in which a deficiency or dysfunction of C1 inhibitor leads to excessive bradykinin production.
Infections or underlying medical conditions
These may activate inflammatory pathways that contribute to swelling.
Who Is More Likely to Develop Angioedema?
While angioedema can affect anyone, certain factors may increase the likelihood of developing the condition, including:
A personal or family history of angioedema
A history of allergies, asthma or eczema
Taking certain medications, particularly ACE inhibitors
Having hereditary angioedema in the family
Certain autoimmune or immune-related conditions
Recent infections
Exposure to known allergens or triggers
How Is Angioedema Treated and Managed?
The management of angioedema focuses on treating the underlying cause, preventing recurrent episodes and reducing the risk of serious complications. Depending on the type of angioedema and its triggers, your care may involve:
Avoiding identified triggers
You may be advised to avoid specific foods, medications or other factors that are known to trigger episodes.
Medications
Depending on the cause, treatment may include antihistamines, corticosteroids or adrenaline for severe allergic reactions.
Managing underlying conditions
Associated allergies, infections or other medical conditions may also need to be treated to help reduce recurrent swelling.
Emergency management planning
If you are at risk of severe allergic reactions, you may be provided with an emergency action plan and, where appropriate, an adrenaline auto-injector.
Long-term follow-up
Regular follow-up allows your response to treatment to be monitored and your management plan adjusted as your needs change.
While some episodes of angioedema resolve without recurring, others may require ongoing management to reduce future episodes and maintain long-term control. Regular follow-up allows your treatment to be reviewed over time, ensuring you continue to receive consistent support as your condition and needs change.
Personalised Angioedema Care at Aaria Rheumatology
Angioedema can have several possible causes, from allergic reactions and medications to hereditary or immune-related factors. Identifying the type of angioedema and its underlying triggers is therefore important for choosing appropriate treatment, reducing recurrent episodes and managing the risk of more serious reactions.
At Aaria Rheumatology, patients receive personalised assessment and ongoing care for allergic and immunologic conditions. As a clinical immunologist and allergist, Dr Anindita Santosa evaluates potential allergic and immune-related causes of angioedema and develops an individualised management plan based on each patient’s needs.
If you are experiencing recurrent or unexplained swelling, book an appointment with Dr Anin for an assessment and appropriate management.
