Nikolas
Created page with "Ovarian hyperstimulation syndrome (OHSS) is a complication of the ovarian hyperstimulation which occurs during fertility treatments. It is characterised by enlarged ovaries, increased vascular permeability, and third spacing of fluid from the vessels to the abdominal, pleural, and pericardial cavities. This can cause hydrothorax, pericardial effusion, and haemoconcentration. These features are caused by high exogenous levels of hCG. Patients who become pregnant from th..."