{"title":"Effect of a Pseudoallergen-Free Diet in Chronic Spontaneous Urticaria: A Pilot Study","authors":"Esra Saraç, Pelin Kuteyla Can, E. Kocaturk","doi":"10.21911/aai.693","DOIUrl":null,"url":null,"abstract":"Objective: The role of dietary factors in the etiopathogenesis of chronic spontaneous urticaria (CSU) has been a matter of discussion and it is widely accepted that most urticaria cases triggered by food are caused by pseudoallergic reactions. In this prospective study, our aim was to investigate the effect of a pseudoallergen-free diet (PAFD) on disease activity, the need for antihistamine use, and the quality of life in patients with CSU. Materials and Methods: The study included adult patients who were on follow up for CSU for a duration of at least 6 months and had symptoms every day or every other day. The patients were given a food diary, which also included assessment of daily disease activity. The daily Urticaria Activity Score (UAS), the Chronic Urticaria Quality of Life Questionnaire score at baseline and at the 4th week, and frequency of antihistamine use were obtained. According to the change in UAS (∆UAS), the patients’ response to PAFD was classified as strong (∆UAS≥8), partial (8>∆UAS≥4), or no response (∆UAS<4). Results: Twenty-three patients, 19 females (82.6%) and 4 males (17.4%), completed the study, the mean age was 43±4.6 years. According to ∆UAS, 6 patients (26.1%) had strong response, 6 (26.1%) had partial response, and 11 (47.8%) were unresponsive to PAFD. The mean ∆UAS value of the patients who responded to PAFD was 8.1 (min:4, max:15). At the end of the study, 9 (39.1%) patients had a significant improvement in their quality of life. There were 6 (26%) patients who both responded to PAFD and had improved quality of life scores. The frequency of antihistamine use decreased in 10 (43.5%) patients. Conclusion: PAFD may help decrease disease activity in CSU. We observed that the frequency of antihistamine use could be reduced and the patient’s quality of life could be improved by adding PFAD to antihistamine therapy.","PeriodicalId":42004,"journal":{"name":"Astim Allerji Immunoloji","volume":null,"pages":null},"PeriodicalIF":0.3000,"publicationDate":"2022-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Astim Allerji Immunoloji","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.21911/aai.693","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ALLERGY","Score":null,"Total":0}
引用次数: 0
Abstract
Objective: The role of dietary factors in the etiopathogenesis of chronic spontaneous urticaria (CSU) has been a matter of discussion and it is widely accepted that most urticaria cases triggered by food are caused by pseudoallergic reactions. In this prospective study, our aim was to investigate the effect of a pseudoallergen-free diet (PAFD) on disease activity, the need for antihistamine use, and the quality of life in patients with CSU. Materials and Methods: The study included adult patients who were on follow up for CSU for a duration of at least 6 months and had symptoms every day or every other day. The patients were given a food diary, which also included assessment of daily disease activity. The daily Urticaria Activity Score (UAS), the Chronic Urticaria Quality of Life Questionnaire score at baseline and at the 4th week, and frequency of antihistamine use were obtained. According to the change in UAS (∆UAS), the patients’ response to PAFD was classified as strong (∆UAS≥8), partial (8>∆UAS≥4), or no response (∆UAS<4). Results: Twenty-three patients, 19 females (82.6%) and 4 males (17.4%), completed the study, the mean age was 43±4.6 years. According to ∆UAS, 6 patients (26.1%) had strong response, 6 (26.1%) had partial response, and 11 (47.8%) were unresponsive to PAFD. The mean ∆UAS value of the patients who responded to PAFD was 8.1 (min:4, max:15). At the end of the study, 9 (39.1%) patients had a significant improvement in their quality of life. There were 6 (26%) patients who both responded to PAFD and had improved quality of life scores. The frequency of antihistamine use decreased in 10 (43.5%) patients. Conclusion: PAFD may help decrease disease activity in CSU. We observed that the frequency of antihistamine use could be reduced and the patient’s quality of life could be improved by adding PFAD to antihistamine therapy.
期刊介绍:
Asthma Allergy Immunology has been published three times a year in April, August and December as the official and periodical journal of the Turkish National Society of Allergy and Clinical Immunology since 2003. All articles published in the journal have been available online since 2003. A peer reviewed system is used in evaluation of the manuscripts submitted to Asthma Allergy Immunology. The official language of the journal is English. The aim of the journal is to present advances in the field of allergic diseases and clinical immunology to the readers. In accordance with this goal, manuscripts in the format of original research, review, case report, articles about clinical and practical applications and editorials, short report and letters to the editor about allergic diseases and clinical immunology are published in the journal. The target reader population of the Asthma Allergy Immunology includes specialists and residents of allergy and clinical immunology, pulmonology, internal medicine, pediatrics, dermatology and otolaryngology as well as physicians working in other fields of medicine interested in allergy and immunological diseases.