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Cholinergic urticaria with associated angio-oedema
The British Journal of Dermatology
|November 1, 1981
Summary
Angio-oedema and urticaria can be triggered by heat and exercise. This study highlights the link between these conditions and increased smooth muscle activity, suggesting a shared mechanism.
Area of Science:
- Dermatology
- Allergy Immunology
- Pulmonary Medicine
Background:
- Cholinergic urticaria is a condition characterized by hives triggered by increased body temperature.
- Angio-oedema involves swelling beneath the skin, often associated with allergic reactions.
Observation:
- Three patients presented with angio-oedema and urticaria following hot bath challenges and physical exercise.
- One patient experienced a decrease in peak expiratory flow rate, indicating potential respiratory involvement.
Findings:
- Blood levels of smooth muscle biological activity significantly increased in all patients post-challenge.
- A strong association was observed between angio-oedema and cholinergic urticaria.
Implications:
- These findings suggest a common pathophysiological pathway involving smooth muscle activation in both conditions.
- Further research into the mechanisms underlying exercise- and heat-induced angio-oedema and urticaria is warranted.