![]() ![]() Usually, patients avoid the suspicious food, and this action has implications in their diet as well as personal and social life. Chronic spontaneous urticaria (CSU) can appear at any moment and for that reason patients associate foods, drugs, and different activities as possible triggers of their exacerbations. Urticaria is a common cutaneous disease, where the chronic form affects around 1% of general population and has an important impact in the quality of life. Nevertheless, food challenge tests have to be offered early during medical evaluation to avoid unnecessary restrictions. ![]() Despite the high frequency of self-report by patients, foods are uncommon triggers of CSU. 1.2% in CSU group and 0.7% in control group had a positive oral challenge test. 410 food challenge tests in 164 CSU patients and 38 in 38 control subjects were performed. Food IgE sensitization was similar in both groups (17.5% versus 16.5%, respectively). 164 (66%) subjects from CSU group and 31 (24%) from the control group reported at least one adverse reaction with foods. Patients with CSU (n 245) and healthy (n 127) subjects were included. ![]() A group of healthy subjects was included to compare the dietary habits and the results of the diagnostic tests. Urticaria most common symptom food challenges healthnut skin#Skin prick test and sIgE serum were done for most frequently reported foods by patients. Patients were interrogated about their clinical history of urticaria. To explore the diet habits of CSU patients and estimate the clinical impact of the foods most frequently reported to be suspect. Many patients with chronic spontaneous urticaria (CSU) identify different foods as triggers of their symptoms and frequently make dietary restrictions without enough information. ![]()
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