New insights regarding origin of monosomy occurrence in early developing embryos as demonstrated in preimplantation genetic testing

Table 5 Chromosomal aneuploidy in day 5 embryos according to CCS analysis during PGT-SR

No. of patients	45
Maternal age (mean)	34.4
Paternal age (mean)	36.5
No of patients for PGT-SR	45
No of cycles	90
No. of examined embryos	432
No. of embryos with no result (%)	27/432 (6.2)
No. of embryos with result (%)	405/432 (93.8)
No. of euploid embryos (%)	283/405 (69.9)
No. of aneuploid embryos (%)	122/405 (30.1)
No. of embryos with multiple chromosomal aberrations (%)	43/122 (35.2)
Total aberrations (dispersed throughout 43 embryos)	194
Chromosome monosomies (%)	78/194 (40.2)
Chromosome trisomies (%)	116/194 (59.8)
No. of embryos with single chromosomal aberration (%)	79/122 (64.8)
Single chromosome monosomy (%)	33/79 (41.8)
Single chromosome trisomy (%)	46/79 (58.2)

ISSN: 1755-8166