Ovarian hyperstimulation syndrome (OHSS)

The ovarian hyperstimulation syndrome (OHSSOvarian hyperstimulation syndrome. Condition that can occur in rare cases during ovarian stimulation. Signs of hyperstimulation may include: increased volume of the ovaries, accumulation of fluid in the abdomen, gastrointestinal disturbances, stomach bloating and weight gain. In severe cases, serious complications with pulmonary and cardiovascular disorders may occur, requiring hospitalization.) is the most frequently encountered complication in IVF (1-5%). OHSSOvarian hyperstimulation syndrome. Condition that can occur in rare cases during ovarian stimulation. Signs of hyperstimulation may include: increased volume of the ovaries, accumulation of fluid in the abdomen, gastrointestinal disturbances, stomach bloating and weight gain. In severe cases, serious complications with pulmonary and cardiovascular disorders may occur, requiring hospitalization. corresponds to an important ovarian response to stimulationOvarian stimulation. Medical treatment designed to stimulate the ovaries, the follicular growth and development. This treatment usually allows several oocytes to become mature., the extent of which is unpredictable. The use of GnRH analogues increases this risk and a pregnancy will exacerbate its importance. These facts are leading doctors to sometimes prescribe the discontinuation of treatment, either during stimulationOvarian stimulation. Medical treatment designed to stimulate the ovaries, the follicular growth and development. This treatment usually allows several oocytes to become mature. or after oocyteA female reproductive cell. At birth, the ovaries contain 1 to 2 million oocytes. At puberty, there are no more than 400'000 to 500'000 left. Only 400 to 500 will reach maturity and ovulation at a rate of  one per month until menopause. All the others will finally degenerate at various stages of development. collection. After fertilizationFusion of an egg and a spermatozoon, fertilization occurs naturally in the fallopian tubes., all zygotes are then frozen and the embryoTerm designating the early stages of development from conception to the eighth week of pregnancy. From the first cell division on, the two-cell stage, one uses the term embryo. transfer is canceled. The transfer of frozen-thawed embryos will take place during subsequent natural or artificial cycles.

Besides the risk of frustration, the hyperstimulation syndrome may be associated with a life-threatening risk. It should therefore be detected rapidly and treated. In rare cases (less than 1%), hospitalization is mandatory for monitoring or for improving kidney function with medication and/or with the establishment of an abdominal drain that will eliminate an excess of ascites (free fluid) present in the abdomen.

Collaboration between the patient and the physician is essential in this context and the warning signs of OHSSOvarian hyperstimulation syndrome. Condition that can occur in rare cases during ovarian stimulation. Signs of hyperstimulation may include: increased volume of the ovaries, accumulation of fluid in the abdomen, gastrointestinal disturbances, stomach bloating and weight gain. In severe cases, serious complications with pulmonary and cardiovascular disorders may occur, requiring hospitalization., namely abdominal distension, nausea, decreased amount of urine, must always lead the patient to contact the CPMA.