[Peri-ovulatory hormone determination in females with sterility of unknown origin].

In 86 patients with Clomiphen-therapy a daily LH-, E2-monitoring and a sonographic follicle-measurement was performed. In 27 patients a normal endocrine profile, in 12 women a double estradiol arise must be registered. A missing LH peak was noted in 9 cases. In 11 women a double LH peak occurred. 7 patients showed a LH arise two hours after the estradiol peak. In 15 women the ultrasound examination showed an insufficient follicular growth. In 5 cases the typical luf-syndrome was found. Though this variations in cycle-monitoring could be noted their effects in infertility is not really explained.