Symptoms
The angioedema caused by vibratory angioedema often develop where the skin has been in contact with vibration within 10 minutes of the exposure. Sometimes, symptoms can be delayed. The angioedema will often peak 4-6 hours after exposure and subside within 24 hours. Characteristics of vibratory angioedema include:
ItchinessRednessSwelling
Causes
Vibratory angioedema can be an inherited problem (known as a hereditary autosomal dominant disorder) or it can be a spontaneously acquired response to a prolonged exposure to vibration.
It is an extremely rare condition in which the skin produces a hypersensitivity reaction to extended exposure to unremitting vibration.
Examples of stimuli that can cause vibratory angioedema in people prone to the condition include:
Operating a pneumatic hammer or machineryRiding or pushing a lawnmowerRiding a motorcycleJoggingRubbing vigorously with a towel
There are also some common at-risk occupations that may have higher incidences of the skin condition, based on the nature of the type of equipment frequently used. These at-risk occupations include:
Jackhammer operatorCarpenterMachinistMetal grinderLandscaper
Treatment
The main treatment of vibratory angioedema is the avoidance of the vibratory stimulus. The angioedema can be itchy but usually fades away on its own within 24 hours of exposure. To stay safe, individuals prone to vibratory angioedema should avoid any stimulus that has previously caused a reaction for that person.
If you notice symptoms of a rash or hives after coming into contact with a vibratory stimulus, please consider taking the following actions:
Consult a qualified healthcare provider for proper diagnosis and treatment of your condition. Depending on your symptoms, your doctor may order blood tests to screen you for hereditary angioedema. Immediately stop using the offending stimulus and consider avoiding its further use in the future. Ask your doctor if you should obtain and carry an epinephrine auto-injector due to your condition. Certain therapies of antihistamines may be useful but discuss with your healthcare provider before using any over the counter medications.
