this study is designed for evaluate the efficacy of FSH in preventing OHSS, 70 women recruite for this study are :
25 to 40 years old,under a long agonist GnRH suppression IVF protocol at infertility department of Shariati hospital,with >20 follicles in ART cycles ultrasonography,
They prospectively randomize to two strategy groups (gp1&2) for the
prevention of OHSS. In gp1 (35 patient) cases give 450 IU of FSH at the time of the hCG trigger. For gp2 (35 patients)
only hCG trigger administer.
Patients will follow at days 3, 10 post oocyte retrieval. Symptoms of
OHSS (lower abdominal discomfort, abdominal distension, nausea and/or
vomiting, rapid weight gain, dyspnea,and progressive oliguria), volumes
of ovaries and ascites will observe. Patients will divide to 3 groups, mild/moderate/severe OHSS.
Number of metaphase II oocytes, fertilization rate and clinical pregnancy will check.