Long-term tolerance and efficacy of venom immunotherapy after an episode of Crohn's disease and ankylosing spondylitis after up-dosing.

Hymenoptera stings can cause severe anaphylactic reactions in patients with an underlying Hymenoptera venom allergy (HVA). In such cases, venom immunotherapy (VIT) is a highly effective measure to prevent future anaphylaxis. The management of patients with a clear allergological indication for VIT and contraindications to VIT (e.

Sensitization to common ragweed in southern Bavaria: clinical and geographical risk factors in atopic patients.

Background: Sensitization to common ragweed (Ambrosia artemisiifolia) is associated with a variety of risk factors, which are incompletely defined. Our aim was to evaluate the association of a variety of clinical, geographical and demographical variables with ragweed sensitization and also to determine its frequency in southern Bavaria.

Methods: In this cross-sectional multicentre study, we enrolled 977 patients with a documented or suspected atopic disease or food allergy.

Immediate-type hypersensitivity to succinylated corticosteroids.

Background: Despite their frequent use, systemic corticosteroids have rarely elicited immediate-type reactions.

Objective: We report two male patients, aged 26 and 70 years, respectively, with severe immediate-type hypersensitivity secondary to the administration of corticosteroids esterified with succinate.

Methods: Skin tests, basophil activation tests and challenge tests were performed for diagnostic evaluation.