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Acquired vibratory angioedema with a severe impact on work performance
M E Gatica-Ortega1, I Sánchez-Matas2, L Sánchez-Muñoz3
1Dermatology Department, Hospital Universitario de Toledo, Avenida del Río Guadiana s/nº, cp: 45007 Toledo, Spain.
Vibratory angioedema, triggered by tools like pneumatic hammers, can severely impair work. This case highlights omalizumab as an effective treatment for this rare condition, even when associated with chronic spontaneous urticaria.
Area of Science:
- Immunology
- Dermatology
- Occupational Health
Background:
- Vibratory urticaria/angioedema is a rare inducible urticaria triggered by mechanical vibrations.
- It can significantly impact daily activities and work performance, particularly in occupational settings.
- Misdiagnosis is possible without specific vibratory provocation tests.
Observation:
- A construction worker presented with acquired vibratory angioedema linked to chronic spontaneous urticaria, triggered by a pneumatic hammer.
- The patient experienced severe work impairment due to the condition.
- Specific diagnostic tests were crucial to differentiate from delayed pressure urticaria.
Findings:
- Omalizumab treatment led to an immediate and complete resolution of symptoms.
- Analysis included Urticarial Activity Score, vibratory provocation vortex test, and immunological markers.
- This is the first reported case of vibratory angioedema triggered by a pneumatic hammer and the first to respond to omalizumab.
Implications:
- Vibratory angioedema should be considered in patients with inducible urticaria and occupational exposures.
- Omalizumab shows promise as a therapeutic option for severe cases of vibratory angioedema.
- Accurate diagnosis through specific provocation tests is essential for appropriate management.
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