[Anaphylaxis Due to Ingestion of Ivy Syrup (Hedera hÈlix). Report of two Cases].

Common ivy is an ornamental plant, that is ubiquitous in Mexico. Its allergens can cause contact dermatitis, asthma and allergic rhinitis. We describe two cases of anaphylaxis related to common ivy syrup ingestion. We performed skin prick test with Hedera helix syrup, and using a dialized and ultrafiltered of common ivy syrup commercial presentation (dry common ivy extract: 7mg/ml), as well as using Hedera helix pollen extract. We describe two cases of anaphylaxis related to ingestion of Hedera helix syrup. Skin prick test with the commercial presentation and with the pollen extract were positive in both patients. In this study we confirmed the causal relationship of anaphylaxis due to the ingestion of ivy syrup in two patients through skin prick tests with ivy syrup and ivy pollen extract. Common ivy can cause contact dermatitis, asthma and allergic rhinitis, but we do not know the allergens that could be related to systemic and respiratory reactions, then, more studies in this topic are requiered.