Which process is most suited to you will be determined in consultation with your specialist.

Cryotransfer during a natural cycle

During the cryo-cycle process, an embryo is implanted into the uterine cavity during a natural cycle or following hormonal stimulation. The effort required is negligible with the patient only being required to attend an ultrasound examination on the 12th day of the cycle to determine the optimal day for the transfer. If found to be necessary, stimulation therapy using tablets or injections may also be carried out. The important factor in this case is not the egg cell growth during stimulation but rather the hormone production in the follicle.

Cryotransfer during an “artificial” cycle

A further option for the application of the cryo-cycle process is the use of what is known as an “artificial cycle” or HRT cycle (HRT: Hormone Replacement Therapy). This requires the woman to initially take only oestrogen, which allows the endometrium to grow. When the optimal build-up of the mucous membrane has been achieved, then orally or vaginally administered progesterone is added. The advantage of this process is the low price and the fact that it does not depend on the condition of the ovaries. The disadvantage is that no follicle, and therefore no corpus luteum, will provide hormones, and oestrogen and progesterone must continue to be taken until approx. week 12 of pregnancy.