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  • Title: [Relationship between 22q11 microdeletion syndrome and congenital heart disease].
    Author: Qin YF, Xie CH, Yang JB, Wu DW, Shao J, Zhao ZY.
    Journal: Zhonghua Xin Xue Guan Bing Za Zhi; 2011 Jul; 39(7):631-5. PubMed ID: 22088244.
    Abstract:
    OBJECTIVE: To investigate the relationship between 22q11 microdeletion syndrome and congenital heart disease. METHODS: Clinical screening assessment and genetic testing using standard fluorescence in-situ hybridization (FISH) were applied in 207 subjects suspected for 22q11 microdeletion syndrome. Patients with 22q11 microdeletion syndrome were examined by echocardiography, patients with complicated congenital heart disease were examined further by cardiac catheterization. RESULTS: 22q11 microdeletion syndrome was detected in 39 subjects. The incidence of 22q11 microdeletion syndrome was 1.6% in suspects with simple congenital heart disease without extracardiac manifestations, 53.0% in suspects with congenital heart disease combined with at least two extracardiac manifestations, 3.8% in suspects without congenital heart disease. The incidence of congenital heart disease in 22q11 microdeletion syndrome patient and non 22q11 microdeletion syndrome patient was 94.9% and 54.2% (P < 0.01). The incidence of congenital heart disease combined with at least two extracardiac manifestations in 22q11 microdeletion syndrome patient and non 22q11 microdeletion syndrome patient was 89.7% and 18.5% (P < 0.01). In 22q11 microdeletion syndrome patients, Tetralogy of Fallot was the most common type of congenital heart disease. Dysmorphic faces, learning difficulties and retarded physical development were the most common extracardiac manifestations of the congenital heart disease patients. CONCLUSION: 22q11 microdeletion syndrome is related to congenital heart disease.
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