 The ten year pregnancy rate is estimated at 7.5 pregnancies per 1000 procedures performed, and the ectopic pregnancy rate is estimated at 1.5 per 1000 procedures performed.This method removes both tubes entirely, from the uterine cornuae out to the tubal fimbriae.This method has recently become more popular for female sterilization, given evidence to support the fallopian tube as the potential site of origin of some ovarian cancers.