Treatment of ovarian hyperstimulation syndrome: the physiologic basis for a modified approach.

A case of severe ovarian hyperstimulation syndrome (OHSS) secondary to human menopausal gonadotropin-human chorionic gonadotropin therapy is presented. Draining 4000 ml of exudate by abdominal paracentesis under real-time B-scan imaging induced a marked improvement in the patient's condition. Fluids from the third space were rapidly excreted, renal function improved, and the patient's weight decreased substantially.