ABSTRACT
Of all the patients undergoing in vitro fertilization, the patient with polycystic
ovary syndrome (PCOS) is probably the most challenging. This is due to the fact that
the majority of patients exhibit exaggerated responses to exogenous gonadotropins,
frequently leading to an increased rate of cancellation of a treatment cycle. Even
those who proceed to oocyte retrieval, and in spite of an increased number of oocytes
retrieved, poor fertilization rates may be encountered, probably secondary to an increased
rate of oocyte immaturity. To compound the problem further, even fertilized eggs in
these patients, generally speaking, may show lower cleavage rates, and this leads
to decreased implantation and pregnancy rates. In addition, these are patients who
exhibit a much higher incidence of ovarian hyperstimulation syndrome, which puts the
patient's health at great risk. Possibly, some of these problems may be inherent in
the PCOS ovary. Nevertheless, it is possible that modifications of clinical protocols
may improve outcome.
KEYWORDS
In vitro fertilization - polycystic ovaries - high responders - oocyte - implantation
- ovarian hyperstimulation syndrome