scholarly journals Autologous serum skin test in 250 patients of chronic spontaneous urticaria at tertiary care hospital in Gujarat

Author(s):  
Sonal Gaurang Patel ◽  
Rima Rakesh Joshi ◽  
Raksha Maganlal Patel

<p class="abstract"><strong>Background:</strong> Chronic urticaria (CU) is defined as urticaria persisting daily as or almost daily for more than 6 weeks and affecting 0.1% of the population. In chronic autoimmune urticaria, immunoglobulin G (lgG) auto antibodies react to the alpha subunit of the high-affinity lgE receptor (FceR1) on dermal mast cells and basophils, leading to chronic stimulation of these cells. This results in the release of histamine and other inflammatory mediators which cause urticaria and angioedema. More than half of the patients have autoimmune urticaria. ASST is the only in vivo test to detect autoimmune urticaria. The aim was to study the frequency of ASST positivity among patients with chronic spontaneous urticaria and to identify the clinical and laboratory parameters associated with positive ASST.</p><p class="abstract"><strong>Methods:</strong> The present study is prospective observational study of chronic spontaneous urticaria. ASST was performed in 250 patients fulfilling exclusion and inclusion criteria. Baseline investigations (CBC, ESR, urine, stool, RBS and CRP) were done for all the patients whereas specific investigations (ANA, Thyroid Profile, IgE, Anti H.Pylori IgG and skin biopsy) were done in selected cases.<strong></strong></p><p class="abstract"><strong>Results:</strong> Out of 250 patients examined, 60% had positive autologous serum skin test suggestive of autoimmune urticaria. H. pylori antibodies were significantly higher (29%) in ASST positive patients. While antinuclear antibody (ANA) was positive in 4% and thyroid antibodies were present in 7% of patients with positive ASST. Serum IgE was elevated in 32% ASST positive patients.</p><p class="abstract"><strong>Conclusions:</strong> ASST is an easy, simple and cost effective screening test for chronic autoimmune urticaria.</p>

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Aysegul Alpay ◽  
Nilgün Solak Tekin ◽  
Ishak Özel Tekin ◽  
H. Cevdet Altinyazar ◽  
Rafet Koca ◽  
...  

Previous studies indicate that 25–45% of chronic urticaria patients have an autoimmune etiology. Autologous serum skin test (ASST) and autologous plasma skin test (APST) are simple tests for diagnosing chronic autoimmune urticaria (CAU). However, there are still some questions about the specificity of these tests. This study consisted of 50 patients with chronic spontaneous urticaria (CSU) and 50 sex- and age-matched healthy individuals aged 18 years, and older. A total of 31 (62%) patients and 5 (10%) control patients had positive ASST; 21 (42%) patients and 3 (6%) control patients had positive APST. Statistically significant differences were noted in ASST and APST positivity between the patient and control groups (ASSTP<0.001; APSTP<0.001). Thirteen (26%) patients and 5 (10%) control patients had antithyroglobulin antibodies or antithyroid peroxidase antibody positivity. No statistically significant differences were noted in thyroid autoantibodies between the patient and control groups (anti-TGP=0.317; anti-TPOP=0.269). We consider that the ASST and APST can both be used asin vivotests for the assessment of autoimmunity in the etiology of CSU and that thyroid autoantibodies should be checked even when thyroid function tests reveal normal results in patients with CSU.


2016 ◽  
Vol 12 (2) ◽  
pp. 6-10 ◽  
Author(s):  
Kumar Pokhrel ◽  
S. Subedi ◽  
S. Acharya

Background: Urticaria is a short-lived swelling of skin and mucosa due to plasma leakage by immune and non immune mediated activation and released of mediators from mast cell and basophil. Autoimmune urticaria tends to have a high itch and wheal score than other type of urticaria. Its diagnosis is practically relied upon clinical suspicion and autologous serum skin test. Autologous serum skin test (ASST) is the simple and cost effective test to differentiate autoimmune urticaria from the bulk of chronic urticaria patients. Objective: To compare the features of chronic urticaria in patients having positive versus negative autologous serum skin test (ASST).Materials and methods: Cross-sectional hospital based study was conducted among 90 chronic urticaria patients (CIU) attending the outpatient dermatology department of Nepalgunj Medical College, Nepalgunj, during one year period. The study was conducted after ethical approval from the institutional committee. The patients were diagnosed on the basis of the appearance of continuous or recurrent hives with or without angioedema for more than 6 weeks. Patients who suffered from either acute urticaria or urticarial vasculitis or physical urticaria or other systemic diseases known to cause urticaria were excluded. Standard tools and techniques were used to prepare antilogous serum and injection of the serum and interpretation of the result. The test result was Interpreted as positive and negative autologous serum skin test.Results: ASST was positive in 42% of the patients and negative in 58% of the patients. The ASST-positive patients had a higher mean urticaria activity score and median duration of wheals in comparison with the ASST-negative patients. Wheals lasted for significantly longer duration in patients with positive ASST. Patients with positive ASST had more frequent attacks which was statistically significant compared to the ASST-negative group. The mean urticaria activity score was significantly higher in the ASST-positive patients than that in the ASST-negative patients.Conclusions: Autologous serum skin test may be a useful screening test for autoimmune urticaria and may be used as a simple and cost-effective test for the classification of chronic urticaria.JNGMC Vol. 12 No. 2 December 2014, page: 6-10


2018 ◽  
Vol 19 (2) ◽  
pp. 100-103
Author(s):  
Mohammad Nura Alam ◽  
Mohammad Ali ◽  
Mohammad Moniruzzaman Khan ◽  
Keya Tarafder ◽  
Goutam Kumar Acherjya ◽  
...  

Background: Autologous serum skin test (ASST) is easy to perform, cost effective measure for initial identification of auto-antibody in patients suffering from chronic urticaria which may occur due to autoimmune trigger by spontaneously developed auto-antibodies against FcμRI receptor of skin mast cells.Objective: This review is designed to see the positivity of ASST in patients suffering from chronic urticaria.Materials & Methods: This a retrospective data analysis conducted from the records of patients suffered from at least two episodes of urticaria or more in a week for 6 weeks and who did ASST aged more than 10 years between July 2015 to June 2017. These subjects were not pregnant or lactating mother, did not had urticarial vasculitis, predominant co-existing physical urticaria and had negative Hepatitis B antigen and anti-nuclear antibody reports.Results: Total 53 were included in this study of them 33 were female. Mean age was 32 years with a standard deviation (SD) of 11 years. Among study patients 16 (30.2% of total) had a positive ASST result. No age or sex difference was observed in positive ASST cases. In positive cases significant (p-value:<0.001) mean induration difference of 2.75mm with a SD of 1.00 mm observed than induration produced by negative control.Conclusion: ASST is easy and effective tool for initial identification of auto-reactive urticaria.J MEDICINE JUL 2018; 19 (2) : 100-103


Author(s):  
Usha Rani Tirupathi ◽  
Bhagya Rekha Manchiryala ◽  
Sruthi Kareddy

Introduction: Urticaria is a frequent and heterogeneous skin disease characterised by the development of wheals (hives), angioedema, or both. Chronic urticaria is characterised by the occurrence of wheals lasting less than 24 hours, with or without angioedema occurring daily or almost daily lasting more than six weeks. The two subtypes of chronic urticaria are Chronic Spontaneous Urticaria (CSU) and Chronic Inducible Urticaria (CIU). Autologous Serum Skin Test (ASST) is the simplest and the best in-vivo clinical test for the detection of basophil histamine- releasing activity. ASST has a sensitivity of approximately 70% and a specificity of 80%. Aim: To study the association between clinico-epidemiological features of CSU with positive and negative ASST. Materials and Methods: The cross-sectional study was conducted on 80 clinically diagnosed cases of CSU attending the Department of Dermatology Venereology Leprology Outpatient Department at Mahatma Gandhi Memorial Hospital (Kakatiya Medical College), Warangal, Telangana, India; during the period of January 2016 to September 2017. The detailed history was taken; complete physical and cutaneous examination and laboratory investigations like Complete Blood Picture (CBP), Absolute Eosinophil Count (AEC), Erythrocytic Sedimentation Rate (ESR), Thyroid Function Test (TFT) were carried out. ASST was done and read after 30 minutes. Chi- square test was applied and the results analysed using Statistical Package for the Social Sciences (SPSS) version 10.0. Results: Out of total 80 patients included in the study, ASST was positive in 36 (45%) and negative in 44 (55%). ASST positive patients showed longer duration of the disease with increased frequency of attacks and longer duration of wheals. However, both ASST positive and negative groups did not show statistically significant difference in the age of occurrence, gender, angioedema, dermographism. Conclusion: Autoimmune urticaria has no distinctive clinical features. ASST positive, autoimmune urticaria patients have more severe disease with greater impact on quality of life. Thus, they may need more aggressive treatment.


2021 ◽  
Vol 4 (1) ◽  
pp. 24-29
Author(s):  
Mahvira Chow Liana Herman Adil ◽  
Nopriyati Nopriyati ◽  
Desi Oktariana ◽  
Yuli Kurniawati ◽  
Gita Dwi Prasasty

Several studies regarding the quality of life of chronic spontaneous urticaria patients based on Autologous Serum Skin Test (ASST) results have shown a variety of results. This study aims to determine the correlation between the quality of life and ASST results in chronic spontaneous urticaria patients at Dermatology and Venereology (DV) Outpatient Clinic of Dr. Mohammad Hoesin Hospital Palembang. This analytic observational study with a cross-sectional design used secondary data in the form of medical records. 76 samples met the inclusion criteria from 110 samples of chronic spontaneous urticaria patients at DV outpatient clinic. The distribution of chronic spontaneous urticaria patients was highest in the 17-25 year age group (23.7%) and the female group (64.5%). The majority of chronic spontaneous urticaria patients had negative ASST results (52.6%). The effect of chronic spontaneous urticaria on the decline in quality of life was mostly moderate (35.5%). The bivariate analysis between DLQI score and ASST results with a value of p = 0.307 or p> 0.05 showed no significant correlation between the quality of life and ASST results.


Allergy ◽  
2019 ◽  
Vol 74 (12) ◽  
pp. 2522-2524
Author(s):  
Laurence Montjoye ◽  
Mathilde Choteau ◽  
Anne Herman ◽  
Emilie Hendrickx ◽  
Paméla Chéou ◽  
...  

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