PMID- 28429103 OWN - NLM STAT- MEDLINE DCOM- 20180215 LR - 20220408 IS - 1573-2592 (Electronic) IS - 0271-9142 (Linking) VI - 37 IP - 4 DP - 2017 May TI - Resolution of Primary Immune Defect in 22q11.2 Deletion Syndrome. PG - 375-382 LID - 10.1007/s10875-017-0394-6 [doi] AB - PURPOSE: Patients with 22q11.2 deletion syndrome have a variable decrease in immunological parameters, especially regarding T cell counts. The aim of this study was to investigate immunological change over time and factors associated with immunological recovery among patients with 22q11.2 deletion syndrome. METHODS: Patients with 22q11.2 deletion syndrome diagnosed by fluorescence in situ hybridization (FISH) were studied. Immunological parameters were evaluated every 6 months until patients returned to normal. Infection and vaccination histories were recorded and analyzed, and Kaplan-Meier survival curves were plotted to describe resolution of immunodeficiency. RESULTS: Forty-nine patients with an age range of 4 to 222 months were included. Twenty-five (51%) patients were female. In hypocalcemia, the odds ratio for CD4 lymphopenia was 17.03 (95%CI 1.82-159.23; p value = 0.01). Thirty patients (61.2%) exhibited decreased CD4+ T cell numbers, which returned to normal level in 18 (60%) patients. Median age of CD4+ T cell resolution was 2.5 years. T cell functions were abnormal in three patients. T cell functions returned to normal in all patients at a median age of 1.1 years. Six patients (13.5%) had abnormal serum immunoglobulin levels, with levels improving in four patients at 1.4 years of age. The most common infection was pneumonia (69.4%). BCG vaccination was administered in 47 of 49 patients at birth. Among 32 patients who had T cell defect, one patient developed BCGitis and one developed disseminated BCG. CONCLUSION: Immunodeficiencies identified among patients with 22q11.2 deletion syndrome were T cell defect (65.3%) and decreased immunoglobulin levels (12.2%). Median age of CD4 resolution was 2.5 years. FAU - Suksawat, Yiwa AU - Suksawat Y AD - Division of Allergy and Immunology, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand. FAU - Sathienkijkanchai, Achara AU - Sathienkijkanchai A AD - Division of Medical Genetics, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, 2 Prannok Road, Bangkoknoi, Bangkok, 10700, Thailand. FAU - Veskitkul, Jittima AU - Veskitkul J AD - Division of Allergy and Immunology, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand. FAU - Jirapongsananuruk, Orathai AU - Jirapongsananuruk O AD - Division of Allergy and Immunology, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand. FAU - Visitsunthorn, Nualanong AU - Visitsunthorn N AD - Division of Allergy and Immunology, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand. FAU - Vichyanond, Pakit AU - Vichyanond P AD - Division of Allergy and Immunology, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand. FAU - Pacharn, Punchama AU - Pacharn P AD - Division of Allergy and Immunology, Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand. punchama@gmail.com. LA - eng PT - Journal Article DEP - 20170420 PL - Netherlands TA - J Clin Immunol JT - Journal of clinical immunology JID - 8102137 RN - 0 (Immunoglobulins) SB - IM MH - Adolescent MH - CD4-Positive T-Lymphocytes/*immunology MH - Child MH - Child, Preschool MH - DiGeorge Syndrome/diagnosis/*immunology/mortality MH - Female MH - Humans MH - Immunoglobulins/*blood MH - In Situ Hybridization, Fluorescence MH - Infant MH - Male MH - Mycobacterium bovis/*immunology MH - Pneumonia/diagnosis/*immunology MH - Survival Analysis MH - Vaccination OTO - NOTNLM OT - 22q11.2 deletion syndrome OT - T cell OT - age of resolution OT - immunodeficiency OT - immunoglobulin EDAT- 2017/04/22 06:00 MHDA- 2018/02/16 06:00 CRDT- 2017/04/22 06:00 PHST- 2016/08/25 00:00 [received] PHST- 2017/04/03 00:00 [accepted] PHST- 2017/04/22 06:00 [pubmed] PHST- 2018/02/16 06:00 [medline] PHST- 2017/04/22 06:00 [entrez] AID - 10.1007/s10875-017-0394-6 [pii] AID - 10.1007/s10875-017-0394-6 [doi] PST - ppublish SO - J Clin Immunol. 2017 May;37(4):375-382. doi: 10.1007/s10875-017-0394-6. Epub 2017 Apr 20.