[The comparison of efficiency of supplement of the second phase in the program IVF-ET by dydrogesterone and progesterone].

The retrospective study was carried out to compare effectiveness of progesteron and dydrogesteron luetal phase support following in vitro fertilisation and embryo transfer. Two hundred and fifty eight patients undergoing IVF ET received progesteron in itramuscular injections. Two hundred sixty patients received dydrogesteron three times daily p.o. There were no differences in stimulation protocols, indications for IVF and IVF procedures. Pregnancy rate, implantation rate and spontaneous abortion rate were similar in both groups. The effectiveness of luteal phase support in patients undergoing IVF ET program by dydrogesteron and progesteron is similar with significantly lower costs for the last one.