Abbreviated endometriosis-associated infertility correlates with in vitro fertilization success

The utility of in vitro fertilization (IVF) for refractory infertility associated with endometriosis was studied by reviewing the 6-year experience with IVF and pregnancy follow-up at University Hospital, London, Ontario. Two hundred forty cycles were begun in 124 couples in whom endometriosis was the sole identified cause of infertility. In a program employing predominantly ultrasound-guided transvaginal oocyte retrieval, live birth rates were not reduced with advanced degrees of endometriosis. Live births were positively correlated with a shorter infertility duration.