[Vibratory angioedema].
BACKGROUND
Vibratory angioedema is a rare form of physical urticaria. This entity can be an hereditary autosomal dominant disorder or an acquired sporadic disease. Immediate and delayed forms have been reported.


METHODS
A 34-year-old woman was referred to us for a vibratory angioedema induced by mountain biking. Despite her handicap, she could provoke a clinical tolerance with disappearance of pruritus but not of erythema and edema if she continued her physical effort. Diagnosis was confirmed with a vibratory stimulus using a Vortex for 5 minutes. The realization of a controlled vibratory stimuli among 20 volunteers induced a positive response in 7 cases (35 p. 100).


CONCLUSIONS
These results raise the problem of the specificity of the test but also point out the possible physiological response of the body to intense vibratory stimulations.
Mathelier-Fusade
P
P
Centre d'Allergologie, Hôpital Tenon, 4, rue de la Chine, 75020 Paris.
Vermeulen
C
C
Leynadier
F
F
D000328:Adult; D000799:Angioedema / Q000209:etiology*; D001132:Arm; D001642:Bicycling; D005260:Female; D006801:Humans; D010812:Physical Stimulation / Q000295:instrumentation; D014581:Urticaria / Q000209:etiology*; D014732:Vibration / Q000009:adverse effects*