Systemic lupus erythematosus (SLE) is an autoimmune disease which may negatively influence fertility. Treatment with cyclophosphamide can damage the ovaries. The ovarian function can also be reduced by autoimmune oophoritis in lupus patients. We analysed the influence of SLE on the ovarian reserve against disease intensity and duration of illness. We determined the ovarian reserve in 33 premenopausal SLE patients without previous cyclophosphamide-treatment by measuring the anti-Muellerian hormone (AMH) and compared these with the AMH values of 33 age-matched healthy controls. Numbers of children and miscarriages were reported. Disease intensity of the SLE patients was determined using SLEDAI and ECLAM and duration of illness was taken into account. We found that the AMH values in the SLE group were significantly lower than in the healthy control group. No significant differences between the groups regarding number of children and miscarriages were noted and no correlation between the AMH value and the duration of illness or the SLEDAI as an indicator of disease activity was found. Despite mild disease activity SLE patients had a significantly lower ovarian reserve than age-matched healthy women. This could be a sign that SLE itself has a negative influence on the ovarian reserve.

When counselling patients with SLE for fertility preservation one has to be aware of the disease-specific risks. According to the literature, a safe and effective option in SLE up to now has been the use of a GnRH analogue. Cryoconservation of ovarian tissue must still be seen as an experimental treatment, but as data on removal, cryoconservation, retransplantation and pregnancies are steadily rising, this presents a promising option for young SLE patients. Cryoconservation of oocytes must be very critically evaluated due to the need for a stimulation therapy and should only be performed after particular consideration of the individual risks.

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In cases of severe exacerbation of autoimmune diseases (AID) cytotoxic therapy, in particular with cyclophosphamide (CYC) is needed. As the peak occurrence of such AIDs occurs in young women during the childbearing years, preservation of fertility and the hormonal function of the ovaries are an interdisciplinary challenge.For ovarian protection several options exist. Gonadotropin-releasing hormone analogues in parallel with CYC treatment seem to reduce the cytotoxic effect on the ovaries. Fertilized and unfertilized oocytes can be conserved by cryoconservation after ovarian stimulation. A relatively new strategy uses cryopreservation and autotransplantation of human ovarian tissue prior to cytotoxic therapy. As all these methods are accompanied with side-effects and possible delays in the necessary CYC treatment, a close collaboration of gynecologists and internists is needed. The decision for the optimal preservation therapy should always be based on the individual patient.

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