F ood allergy is defined as "an adverse reaction to food in which immunological mechanisms have been demonstrated." 1 The increae in the prevalence of food allergy was reported as about 3.5%-5% of the general population 2 and 8% of the paediatric population. 3 The characteristic of food-induced allergic disorders have been defined as IgE-mediated, cell-mediated and mixed (IgE and cell-mediated). 2 Prevalence of adverse reactions to fruits was reported in 2.2-11.5% of children and 0.4-6.6% of adults. 4 Among fresh fruit, banana is not a common cause of fruit allergy, but it can cause life-threatening symptoms. Banana allergy is characterized as banana hypersensitivity, cross reaction to birch tree or pollen known as oral allergy syndrome and the latex-fruit syndrome which often occurs in patients sensitive to latex. Here we reported a case of a patient who experienced banana anaphylaxis without latex or pollen allergy and can tolerate baked banana. Case ReportA case of 59-year-old Thai woman with generalized pruritic urticarial rash, rhinorrhea, nasal obstruction and shortness of breath after 30 minutes following the ingestion of two pieces of raw Pisang awak banana (glûay-nám-wáa) ( Figure 1) together with paracetamol 1,000 mg. At the emergency room, blood pressure 160/90 mmHg, pulse rate 80/min, respiratory rate 15/min, body temperature 37.2°C. The physical examination revealed good consciousness, end expiratory rhonchi both lungs, nasal swelling, angioedema both eyelids with generalized urticarial rash, and organ presented within normal limits. Food-induced anaphylaxis was diagnosed and adrenaline (1:1,000) 0.5 mL intramuscular was given to her immediately with the rapid response of her clinical syptoms within an hour. Unfortunately, a late phase reaction occurred 3 hours later. She was then admitted as an inpatient for a day and discharged with self-epinephrine auto injection. Serum tryptase 2 hours after the onset of reaction revealed 19.10 ug/L (1.9-13.5). AbstractBananas are one of the most consumed fruits in the world with enriched nutrients. Although allergy to banana is rare, it can occur in both children and adults with varying clinical presentation ranging from oral allergy syndrome to anaphylaxis.Banana is a complex allergen including both heat labile and heat stable parts of proteins. As far as known, the heat stable allergen or linear epitope in their molecular structure usually plays a significant role in a case of anaphylaxis.Here we report 59-year-old woman who experienced anaphylaxis following the ingestion of raw Pisang awak banana (glûay-nám-wáa). Interestingly, this patient shows substantial evidence of immunoglobulin E (IgE) reactivity to the banana but can tolerate baked banana.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.