Table 1.
Morphological and chromosomal analysis of fetuses developed from 2‐ to 4‐cell embryos using IVF and ICSI techniques [23, 24]
| Methods | Sperm medium (incubation time) | No. of embryos transferred | No. of developing fetuses | Morphological analysis | Chromosome analysis | ||||
|---|---|---|---|---|---|---|---|---|---|
| Live fetuses | Dead fetuses | No. of fetuses karyotyped | Normal | Aberration | |||||
| Normal | Malformation | ||||||||
| IVF | TYH (1.5–2.0 h) | 75 | 60 | 60 | 0 | 0 | 59 | 59 | 0 |
| ICSI | TYH (2–2.5 h) | 79 | 57 | 56 | 0 | 1 (1.7%) | 56 | 55 | 1 (1.8%) |
| H‐mCZB (2–2.5) | 87 | 62 | 59 | 1 a (1.6%) | 2 (3.2%) | 60 | 56 | 4 (6.7%) | |
| PB1 (6 h) | 62 | 35 | 34 | 1 b (2.9%) | 0 | 35 | 35 | 0 | |
aUmbilical hernia
bPolydactyly