1/2. anaphylaxis to raw potato.BACKGROUND: Potato allergy has been described rarely, generally in relation to the Oral Allergy syndrome (OAS). Adults with seasonal allergic rhinitis have been reported in whom peeling of raw potatoes causes oculonasal symptoms, wheezing, and contact urticaria. skin testing with fresh fruits and vegetables has been recommended in cases of OAS, although the sensitivity of commercial potato extract is reportedly equal to that of fresh potato. CASE REPORT: This report describes a 4-year-old with raw potato-induced anaphylaxis. He rapidly developed urticaria, angioedema, respiratory distress, vomiting and diarrhea after biting into a raw potato that was being used for painting in preschool. review of systems is significant for viral-induced wheezing, but no symptoms suggestive of seasonal allergic rhinitis were evident. His mother has a history of seasonal allergic rhinitis and contact urticaria with raw potato. skin testing to commercial potato extract was negative and skin testing to fresh potato by the prick prick method was markedly positive. skin testing to birch tree was negative. An open challenge to a small amount of cooked potato was negative. food challenge to raw potato was not considered indicated in this case of immediate anaphylaxis to a single food. CONCLUSIONS: This patient had clinical and skin test reactivity to raw and uncooked potato in the absence of OAS. The patient will be followed for the development of seasonal allergic rhinitis.- - - - - - - - - - ranking = 1keywords = potato (Clic here for more details about this article) |
2/2. Rapid recovery from acoustic trauma: chicken soup, potato knish, or drug interaction?OBJECTIVES: To describe the phenomenology and consider possible mechanisms mediating rapid and unexpected recovery from acoustic trauma after ingestion of a food substance (potato knish). STUDY DESIGN: Single subject with repeated test measures. SETTING: Regional Veteran's Administration Medical Center, tertiary care medical center. methods: Pure-tone audiometry and distortion product otoacoustic emissions (DPOAEs) performed at 6 days, 21 days, and 1 year postexposure. RESULTS: Medical treatment with corticosteriods and a diuretic alone failed to improve auditory function and related symptoms (tinnitus and aural fullness) over a 2-week period. Rapid recovery of auditory function (dramatic improvement in pure tone thresholds; reappearance of DPOAEs) and abatement of related symptoms directly followed physiologic reactions from ingesting a food substance. CONCLUSIONS: Rapid recovery from acoustic trauma was temporally correlated with urodynamic and cardiovascular reactions from ingesting food containing sulfite preservative, a substance to which the individual was allergic. Factors that may have contributed to recovery of function include massive diuresis, increased heart rate, release of biochemical mediators, mediator-induced vasodilatation, and changes in vascular or cell membrane permeability. Establishing relationships that lead to recovery of function from acoustic trauma may facilitate research and aid in the development of new treatment options for this condition.- - - - - - - - - - ranking = 0.33333333333333keywords = potato (Clic here for more details about this article) |