Ginekol Pol
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The ovarian hyperstimulation syndrome (OHSS) is still a difficult diagnostic and therapeutic problem. OHSS is associated with significant hypertrophy of the ovaries associated with the loss of the intravascular fluid to the third space which results in hypovolaemia, oliguria, electrolyte imbalance, and a rise in haematocrit. The endogenous OHSS is rare. ⋯ Therapy should be based on the correction of hypovolaemia, hypotension and oliguria. Antithrombotic prophylaxis is an integral part of the OHSS management. Some interesting attempts have been undertaken to re-infuse the protein-rich ascites fluid directly to the systemic circulation, so called continuous auto-transfusion system of the ascites (CATSA).