RESUMEN
BACKGROUND: Polycystic ovarian syndrome (PCOS) is one of the most common causes of endocrine disorders and main reasons for infertility due to unovulation and recurrent abortions. There is no consensus on effect of serum progesterone level on the day of human chorionic gonadotropin (hCG) injection. This study aims to evaluate the effect of plasma levels of progesterone on the day of hCG injection on the rate of pregnancy in in vitro fertilization (IVF) cycles of PCOS cases. MATERIALS AND METHODS: A stratified cohort study was conducted over a period of one year (2009) on 38 infertile women with PCOS who were suitable candidates for the IVF program. Patients were evaluated for other causes of infertility with hysterosalpingography (HSG), laparoscopy and normal sperm analysis. Patients were placed on the long protocol, followed by oocyte pick up, and finally IVF-embryo transfer (ET). Study patients were grouped according to progesterone levels of greater or less than 1.2 ng/ml on the day of hCG injection. Pregnancy rates were defined in each group. Levels on day of hCG day clinical pregnancy outcome were assessed. Experimental data were then compared against Fisher's exact test in SPSS version 18. RESULTS: The overall pregnancy rate in this study was 26.3%. In the group with progesterone levels more than 1.2 ng/ml on the day of hCG injection, the clinical pregnancy rate was 4 (21.1%) and chemical pregnancy rate was 3(15.8%). In the group with progesterone levels less than 1.2 ng/ml, the clinical pregnancy rate was 1(5.3%) and chemical pregnancy rate was 2(10. 5%). CONCLUSION: This study showed that PCOS patients with progesterone levels more than 1.2 ng/ml on the day of hCG injection resulted in higher chemical and clinical pregnancy rates. However, no significant statistical differences were found between the two groups. For further verification, we recommend additional studies with larger numbers of subjects.
RESUMEN
BACKGROUND: Polycystic ovarian syndrome is one of the most common causes of endocrine disorders and main reason of infertility due to anovulation and recurrent abortions. Progesterone has been shown to have an important role in fertilization of oocyte and fetal implantation. OBJECTIVE: The purpose of this study was to compare the predictive value of progesterone level on IVF success in women with infertility due to tubal factor or PCOS. MATERIALS AND METHODS: In a stratified cohort study, we assigned 76 infertile women of 20-38 years old who referred to women hospital into two equal groups with fallopian tube factor infertility and PCOS. We measured the plasma levels of progesterone and estradiol on the day of HCG administration. The patients were divided into two groups based on progesterone level cut off point of 1.2ng/ml. Thereafter the incidence of pregnancy (chemical by ß-HCG measurement and clinical by ultrasonography up to the 6 weeks after fetal transfer) was compared in these groups. RESULTS: Total pregnancy rates were 15.8% in patients with tubal factor infertility and 26.3% in women with PCOS. In women with PCOS, the pregnancy rate was less in patients with progesterone level <1.2 ng/ml. However this difference was not statistically significant. Likewise, we did not observe any significant differences in pregnancy rate in patients with fallopian tube factor infertility. CONCLUSION: Serum progesterone level on the day of HCG administration is not well predictive of the IVF success in infertile women due to fallopian tube factor or PCOS. To obtain more uniform results, we recommend use of larger samples while the bias variable is taken into account and the ROC curve is used for determination of the unique serum progesterone level.
RESUMEN
OBJECTIVE: Fetal heart rate (FHR) variation during chorionic villus sampling (CVS) is a controversial topic. Limited studies have been published on this subject. Our study intended to evaluate the effects of CVS on the FHR. METHOD: One hundred and sixty-five patients undergoing first-trimester elective CVS for prenatal diagnosis of beta-thalassemia were entered into a prospective study. M-mode FHR was obtained before and immediately after CVS in the patients. Potentially confounding variables also recorded included: gestational age, number of needle passes and placental location. RESULTS: FHR values before and after CVS were compared using the paired t test and showed no statistically significant differences by 95% confidence. No differences were found in data analyzing gestational age, number of needle passes or placental location. CONCLUSION: We were unable to detect any significant change in FHR after performing CVS. It seems that FHR is generally not altered by CVS.
