AIMTo describe the reproductive outcome following intracytoplasmic sperm injection (ICSI) for male factor infertility associated with Crohn's disease and 6-mercaptopurine (6-MP) chemotherapy.

METHODSThe male partner of a couple suffered from severe Crohn's disease and received a 3-month course of 6-MP for this condition. Two spontaneous conceptions were established before 6-MP, although post-chemotherapy semen analysis found the sperm concentration to be 8,000/mL. In vitro fertilization (IVF) with ICSI and embryo transfer was performed.

RESULTSThe woman underwent an uncomplicated controlled ovarian hyperstimulation sequence using a combined rec-FSH+hMG protocol, following late luteal phase pituitary downregulation. This culminated in the retrieval of 18 oocytes, 11 of which were fertilized with ICSI. She later delivered a normal male infant without urogenital anomaly. Four nontransferred blastocysts were cryopreserved.

CONCLUSIONThis report describes the first successful birth after ICSI for severe oligozoospermia associated with Crohn's disease and 6-MP therapy. We outline salient features of Crohn's disease, 6-MP pharmacology, and their relevance to human fertility.

Adult ; Crohn Disease ; complications ; drug therapy ; Female ; Humans ; Immunosuppressive Agents ; administration & dosage ; Male ; Mercaptopurine ; administration & dosage ; Oligospermia ; complications ; therapy ; Pregnancy ; Pregnancy Outcome ; Sperm Injections, Intracytoplasmic