Oocyte retrieval is carried out under ultrasound control. Vaginal puncture and aspiration of ovarian follicles is accomplished with a needle which is guided along the vaginal echographic probe.

The pick-up which takes about 30 min is carried out under sedation or light general anesthesia; sometimes local anesthesia will do. (Fig. 5).

CHU Saint-Pierre, Université Libre de Bruxelles
UMC Sint-Pieter, Vrije Universiteit Brussel
Saint-Pierre University Hospital, Free University of Brussels