Results Comparison between both groups as regards the reproductive outcome showed a significant difference in pregnancy and implantation rates, both being higher in group II ( P < 0.05) Comparison between both subgroups as regards the reproductive outcome showed a highly significant difference in pregnancy and implantation rates, both being higher in Group IIa ( P < 0.01).
In contrast however, other studies have stated that although the difference in clinical pregnancy rate had increased by AH, yet it did not reach statistical significance. 24 In addition another randomized study, failed to show any beneficial effect of LAH on implantation and pregnancy rates following the transfer of thawed embryos. 25 In conclusion, BT appears to be a successful and improved alternative for patients with multiple failed IVF attempts.