Problems which arise in conjunction with the use of assisted reproduction methods are no longer resolved only by the gynaecologist. The authors demonstrate on the case of a female patient the necessity of interdisciplinary collaboration in the diagnosis and therapy of developed ovarian hyperstimulation syndrome (OHSS) - the most serious complication of assisted reproduction.

        Key words: ovarian stimulation syndrome, pleuritis, pericardial exudate, arrhythmia.