A Urticaria Paper will be published in Chin J Dermatol (Chinese top Journal) on Sep 28, 2018, 18:30

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Third Affiliated Hospital of Sun Yat-sen University
600 Tianhe Road,
510630 Guangzhou
China
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Xiangyang Su
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Analysis of 127 cases of inducible urticaria provocation tests Lu Rongbiao1, Su Xiangyang1,2, Yao tingting3, Li Meirong1, Li Huizhu1, Ye Cuifen1, Lai Wei1 1. Department of Dermatology, The Third Affiliated Hospital of Sun Yat?sen University, Guangzhou 510630, China; 3. Department of Gynecological Oncology, Sun Yat?sen Memorial Hospital, Sun Yat?sen University, Guangzhou 510120, China Corresponding author: Su Xiangyang, Email: Enable JavaScript to view protected content. 【Abstract】Objective To analyze the positive rate and distribution of the inducible urticaria provocation test in patients in the southern China. Methods Through detailed medical history collection and physical examination, 127 clinically suspected inducible urticaria patients in our urticaria clinic were selected to take the systematically Inducible urticaria provocation tests (delayed pressure urticaria provocation test, symptomatic dermographism, vibratory angioedema provocation test, cold urticaria provocation test, heat urticaria provocation test, and aquagenic urticaria provocation test). Results 106 people(83.46%)had one or more positive result in six inducible urticaria provocation tests. The positive rate of symptomatic dermographism was the highest ,up to 79.53% , followed by heat urticaria provocation test(22.05%)and cold urticaria provocation test(9.45%). Female patients have higher positive rate in heat urticaria provocation test than men. The positive of symptomatic dermographism can often accompany with other types of chronic inducible urticaria(91.67%). There were also high level(18.75%)in two positive non?symptomatic dermographism(SD)inducible urticaria provocation tests at the same time. Cold urticaria provocation test and heat urticaria provocation test can be positive in the same patient. Conclusion Inducible urticaria provocation tests is important in the classification diagnosis of chronic urticaria. 【Key words】Urticaria; Inducible urticaria; Provocation tests

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