الفهرس 
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Abstract
Hundred and twenty patients were included in this study among the attendants of private IVF center. All patients consented for the study and informed of the technique. The cases were divided into two groups (A and B) each of them consisted of 60 patients. group (A): Day 3 embryos or blastocysts were subjected to laser assisted hatching using Saturn 5 laser device (RI) half thickness of one quarter of the circumference of the zona. One hour after thawing of the embryos and two hours before embryos transfer. group (B): Transferred embryos were intact with no LAH.
Results summary
- Age ranged between 22.0-36.0 and 23.0-37.0 years with the mean of 28.94.68 and 27.85.68 years for group A and group B respectively, with no statistically significant differences.
- Normal weight were found in 68.33% and 80%, over weight were found in 20.0% and 13.33% and obese were found in 11.67 and 6.67% for group A and group B respectively, there were no statistically significant differences between the two studied groups regarding weight.
- Total number of ET: 154 and 168 in group A and group B respectively. No. of implantation: 73 and 39 in group A and group B respectively. Implantation rate: were found in 47.4% and 23.2% in group A and group B respectively. There were statistically significant differences between group A and group B (p<0.001*) regarding total noumber of implantation and implantation rate, group A has values statistically higher than group B.
- Regarding no. of pregnant cases 45/60 and 25/60 in group A and group B respectively. Pregnancy rate: were found in 75.0% and 41.6% in group A and group B respectively. There were statistically significant differences between group A and group B regarding no. of pregnancy cases and pregnancy rate, group A has values statistically higher than group B.