Cetrotide protocols are not new. It has been around for quite a few years now. About 65% of all cycles worldwide however, are still Lucrin cycles. This is probably due to the fact that Lucrin has been tried and tested for many years , having given good results for many years. The availability of Cetrotide has given us more options and the ability to change protocols where required.

There is no guarantee that the cetrotide will lead to a different outcome, but is worthwhile doing if indicated. It is unlikely that the reason for the immature eggs was the Lucrin – it could be that it was just a particular bad cohort of eggs or ovarian dysfunction

- Week 22 answers kindly provided by Dr. Stephan Volschenk -

The Lucrin is generally stopped on the day that the progesterone supplementation starts, which is 2 days before the embryo transfer is performed. However, this is one of the areas where we use the depot preparation in our clinic which means the Lucrin is already out of the system when the embryo transfer is done.

- Week 6 answers kindly provided by Dr. Stephan Volschenk -

The difference between the 2 is in how it is used. Depot Lucrin is convenient from a patient point of view as it boils down to only one injection. The feeling is however that suppression of the ovary is too much, meaning that it takes longer and a bigger effort to recruit subsequent oocytes. For this reason we feel that the daily preparation is more suitable. However, the depot preparation does have a place in the treatment in so far as the preparation of uteri in donor egg and surrogate cycles where the degree of ovarian suppression is not that important.

- Week 6 answers kindly provided by Dr. Stephan Volschenk -