“…About 0.30-2.0% of all live births have chromosomal defects, usually the chromosomal defects were aneuploidy and trisomy 21, 18, 13 (Dolk et al, 2010). Among all CHDs detected during infant period, the chromosomal defects account for approximately 6 -10% (Ferencz et al, 1989;Tennstedt et al, 1999;Zhang et al, 2010). In Table 4, defects in chromosomes X, 3, 4, 5, 7, 8, 9, 10, 11, 13, 17, 18, 21 and 22 showed association with CHD.…”