Abstract
Purified urinary follicle-stimulating hormone (uFSH-HP; Metrodin HP, Serono Ltd.) was compared with a combination of pure FSH and human menopausal gonadotrophin (hMG; Pergonal, Serono Ltd.) in patients undergoing standard in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI). In standard IVF, pure FSH gave a significantly higher pregnancy rate per started cycle than did the combination with hMG (35 vs. 18%, p < 0.05). No differences between standard IVF and ICSI were seen which could be associated with hormonal stimulation in an open non-randomized series of patients. In 11 ICSI cycles, the use of recombinant FSH (Gonal F, Serono Ltd.) resulted in 4 ongoing pregnancies.
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