Live birth from vitrified-warmed human oocytes fertilized with frozen-thawed testicular spermatozoa.

A couple with male infertility due to non-obstructive azoospermia were referred to the fertility centre for treatment. Testicular biopsy was performed on the male partner and testicular samples were frozen. The female partner underwent ovarian stimulation and 31 mature oocytes were recovered by ultrasound-guided vaginal aspiration.

Ovarian hyperstimulation syndrome is associated with reversible impairment of vascular reactivity.

Objective: To determine if there is a loss of normal peripheral arteriolar vasoconstrictor reactivity in women with severe ovarian hyperstimulation syndrome (OHSS).

Setting: Prospective controlled study.

Design: National University Hospital, Singapore.