Iman Nasr, Manal Al Kindi, Salma Al Abri, Mahmood Al Kindi, Zainab Ansari, Bushra Al Hinai, Ozay Mohamed, Salah Al Awaidy
{"title":"选择性免疫球蛋白A缺乏症的阿曼患者筛选乳糜泻：横断面研究。","authors":"Iman Nasr, Manal Al Kindi, Salma Al Abri, Mahmood Al Kindi, Zainab Ansari, Bushra Al Hinai, Ozay Mohamed, Salah Al Awaidy","doi":"10.5001/omj.2025.60","DOIUrl":null,"url":null,"abstract":"<p><strong>Objectives: </strong>Selective immunoglobulin A deficiency (SIgAD) is characterized by an isolated deficiency of serum IgA while immunoglobulin G (IgG) and immunoglobulin M (IgM) levels remain normal. Symptoms range from asymptomatic to recurrent infections. We aimed to determine the prevalence of IgAD and SIgAD among Omani patients undergoing screening for celiac disease.</p><p><strong>Methods: </strong>This cross-sectional study included Omani nationals aged above one year, who were screened for celiac disease with anti-tissue transglutaminase (anti-tTG) IgA at Royal Hospital, Muscat, from January 2005 to December 2023. IgAD was defined as a total serum IgA level below the age-dependent reference range. SIgAD was diagnosed when both IgG and IgM values were within their respective reference limits. The prevalence of IgAD and SIgAD was statistically reviewed.</p><p><strong>Results: </strong>Of the 9615 individuals who underwent screening for celiac disease, 114 had low IgA levels. The prevalence of IgAD was 1.2%, and among these, 0.4% were confirmed to have SIgAD. The majority were > 14 years. Patients aged 6-14 years and > 14 years were more likely to have IgAD compared to 1-2 years old. Only 39 (34.2%) patients underwent further testing to confirm SIgAD, while the remaining 75 (65.8%) did not undergo follow-up IgG and IgM testing. Among the patients with confirmed SIgAD, 11 (28.2%) underwent further testing with anti-tTG IgG antibody, with only one (9.1%) testing positive for celiac disease as confirmed by esophagogastroduodenoscopy (EGD) and histopathology. Patients with anti-tTG IgG and EGD exhibited a significantly increased risk of low IgA levels. The remaining 28 (71.8%) patients did not undergo further celiac disease workup (anti-tTG IgG antibody, EGD, or genetic testing).</p><p><strong>Conclusions: </strong>IgAD was present in 1.2% of Omani patients evaluated for celiac disease, and 0.4% had confirmed SIgAD. Referral to an immunologist is recommended when IgG/IgM levels are low or infections are recurrent.</p>","PeriodicalId":19667,"journal":{"name":"Oman Medical Journal","volume":"40 2","pages":"e731"},"PeriodicalIF":0.0000,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12414098/pdf/","citationCount":"0","resultStr":"{\"title\":\"Selective Immunoglobulin A Deficiency Among Omani Patients Screened for Celiac Disease: A Cross-sectional Study.\",\"authors\":\"Iman Nasr, Manal Al Kindi, Salma Al Abri, Mahmood Al Kindi, Zainab Ansari, Bushra Al Hinai, Ozay Mohamed, Salah Al Awaidy\",\"doi\":\"10.5001/omj.2025.60\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Objectives: </strong>Selective immunoglobulin A deficiency (SIgAD) is characterized by an isolated deficiency of serum IgA while immunoglobulin G (IgG) and immunoglobulin M (IgM) levels remain normal. Symptoms range from asymptomatic to recurrent infections. We aimed to determine the prevalence of IgAD and SIgAD among Omani patients undergoing screening for celiac disease.</p><p><strong>Methods: </strong>This cross-sectional study included Omani nationals aged above one year, who were screened for celiac disease with anti-tissue transglutaminase (anti-tTG) IgA at Royal Hospital, Muscat, from January 2005 to December 2023. IgAD was defined as a total serum IgA level below the age-dependent reference range. SIgAD was diagnosed when both IgG and IgM values were within their respective reference limits. The prevalence of IgAD and SIgAD was statistically reviewed.</p><p><strong>Results: </strong>Of the 9615 individuals who underwent screening for celiac disease, 114 had low IgA levels. The prevalence of IgAD was 1.2%, and among these, 0.4% were confirmed to have SIgAD. The majority were > 14 years. Patients aged 6-14 years and > 14 years were more likely to have IgAD compared to 1-2 years old. Only 39 (34.2%) patients underwent further testing to confirm SIgAD, while the remaining 75 (65.8%) did not undergo follow-up IgG and IgM testing. Among the patients with confirmed SIgAD, 11 (28.2%) underwent further testing with anti-tTG IgG antibody, with only one (9.1%) testing positive for celiac disease as confirmed by esophagogastroduodenoscopy (EGD) and histopathology. Patients with anti-tTG IgG and EGD exhibited a significantly increased risk of low IgA levels. The remaining 28 (71.8%) patients did not undergo further celiac disease workup (anti-tTG IgG antibody, EGD, or genetic testing).</p><p><strong>Conclusions: </strong>IgAD was present in 1.2% of Omani patients evaluated for celiac disease, and 0.4% had confirmed SIgAD. Referral to an immunologist is recommended when IgG/IgM levels are low or infections are recurrent.</p>\",\"PeriodicalId\":19667,\"journal\":{\"name\":\"Oman Medical Journal\",\"volume\":\"40 2\",\"pages\":\"e731\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2025-03-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12414098/pdf/\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Oman Medical Journal\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.5001/omj.2025.60\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2025/3/1 0:00:00\",\"PubModel\":\"eCollection\",\"JCR\":\"Q2\",\"JCRName\":\"Medicine\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Oman Medical Journal","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5001/omj.2025.60","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/3/1 0:00:00","PubModel":"eCollection","JCR":"Q2","JCRName":"Medicine","Score":null,"Total":0}
Selective Immunoglobulin A Deficiency Among Omani Patients Screened for Celiac Disease: A Cross-sectional Study.
Objectives: Selective immunoglobulin A deficiency (SIgAD) is characterized by an isolated deficiency of serum IgA while immunoglobulin G (IgG) and immunoglobulin M (IgM) levels remain normal. Symptoms range from asymptomatic to recurrent infections. We aimed to determine the prevalence of IgAD and SIgAD among Omani patients undergoing screening for celiac disease.
Methods: This cross-sectional study included Omani nationals aged above one year, who were screened for celiac disease with anti-tissue transglutaminase (anti-tTG) IgA at Royal Hospital, Muscat, from January 2005 to December 2023. IgAD was defined as a total serum IgA level below the age-dependent reference range. SIgAD was diagnosed when both IgG and IgM values were within their respective reference limits. The prevalence of IgAD and SIgAD was statistically reviewed.
Results: Of the 9615 individuals who underwent screening for celiac disease, 114 had low IgA levels. The prevalence of IgAD was 1.2%, and among these, 0.4% were confirmed to have SIgAD. The majority were > 14 years. Patients aged 6-14 years and > 14 years were more likely to have IgAD compared to 1-2 years old. Only 39 (34.2%) patients underwent further testing to confirm SIgAD, while the remaining 75 (65.8%) did not undergo follow-up IgG and IgM testing. Among the patients with confirmed SIgAD, 11 (28.2%) underwent further testing with anti-tTG IgG antibody, with only one (9.1%) testing positive for celiac disease as confirmed by esophagogastroduodenoscopy (EGD) and histopathology. Patients with anti-tTG IgG and EGD exhibited a significantly increased risk of low IgA levels. The remaining 28 (71.8%) patients did not undergo further celiac disease workup (anti-tTG IgG antibody, EGD, or genetic testing).
Conclusions: IgAD was present in 1.2% of Omani patients evaluated for celiac disease, and 0.4% had confirmed SIgAD. Referral to an immunologist is recommended when IgG/IgM levels are low or infections are recurrent.
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
