Inclusion Criteria:  Aged between 18 and 43 years First attempt of oocyte retrieval under local anesthesia in the context of a protocol for Medically Assisted Procreation  Exclusion Criteria:  Former attempt of oocyte retrieval Poor oocyte stock : > 40 years AND low markers (AMH < 0.5-1.1 ng/ml OR AFC < 5-7) Unsteady epilepsia