Background:Ovulation disorders, usually presents as menstrual disturbance, are the cause of infertility in around 25% of couples who have difficulty to conceive. The drug most commonly prescribed for the induction of ovulation is clomiphene citrate (CC). If the patient does not ovulate after the use of CC, the choice was to add gonadotropins. Gonadotropin therapy is very expensive with significant risks of high order multiple gestations and ovarian hyperstimulation syndrome. Human chorionic gonadotropin hCG can function as a surrogate for LH and oc-cupies LH receptors for more than 24 hours allowing prolonged stimulation also it has longer half-life and greater affinity for the LH receptor. Objective: The purpose of this study was to compare the effectiveness of low-dose human chorionic gonadotropin (hCG) in the late follicular phase to induce ovulation in clomifene citrate resistant patients who had previously failed to ovulate on clomiphene citrate (CC) alone. Subjects,Materials and Methods: A total of 71 patients who attend infertility clinic in the High Institute of Infertility Diagnosis and Assisted Reproductive Technologies, Al-Nahrain University, where prospectively randomly assigned into two groups. hCG Group received 100 mg dose of CC from day 5 of men-strual cycle for 5 days, then each patient received 200 IU hCG (DICLAIR®) subcutaneous injection daily when the largest follicle mean diameter was 12 mm or larger starting on day twelve of menstrual cycle. Non-hCG group received 150 mg dose of CC from day 5 of menstrual cycle for 5 days, and both groups were monitored with transvaginal ultrasound. Ultrasound measurements of follicle number and growth, ovulation, endometrial thickness and pattern were recorded and compared between the two groups. Student t test and fisher exact test were used for statistical comparison between the two groups. Results: The low-dose hCG group had significantly higher percentage of ovula-tory cycles (80% vs 44.4% P value 0.006). There was no significant difference in the endometrial thickness between the groups but it appears higher in hCG group (10.55±1.82 vs. 9.62 ± 1.87 in non-hCG group, p value 0.056). Non significant but higher incidence of echogenic (luteinized) endometrium 48 hour post ovula-tion in hCG group (36/40 (90%) vs. 20/25 (80%) for non-hCG group p-value = 0.288). Conclusions: The use of low-dose hCG after CC in the late follicular phase re-sults in continued follicle growth, higher ovulation rate. This treatment offers an efficient and cost-effective alternative before gonadotropin therapy for this type of patients.
Pregnancy cannot develop without a coordinated stability between an invading trophoblast and a receptive maternal decidua. Both the maternal decidua and the trophoblast, which is embryonic, must incessantly regulate and change one another during the processes of implantation, trophoblast invasion, and placentation. The goal of this study was to determine whether intrauterine infusion of hCG at various doses on the day of ovum pick-up would affect endometrial receptivity markers, biochemical markers, and ICSI outcome. To this end, measurements of serum levels of TNF and IL-10, endometrial thickness using ultrasound, and sub-endometrial blood flow indices using Doppler ultrasound were used.Ninety infertile women were randomly assigned to one of three groups: the research group (n = 60) was given intrauterine administration of either 700 IU or 500 IU of hCG on the day of ova pickup. The control group (n = 30) without hCG. On cycle days 2- 3, a plasma hormone level assessment was performed on each patient.In the 700 hCG group, the pregnancy rate was statistically higher (53.3% and 40%in the 500IU group respectively) as compared with the control group C (26.7%), no significant difference in ICSI outcome between group A &B. The RI and PI were significantly lower in group A (700IU) compared to group B and C. The biochemical marker TNA and ratio of TNF/IL-10 also lower in group A confirming role of Hcg in enhancement of implantation. Intrauterine injection of hCG at day of ova pickup significantly improved the endometrial receptivity marker and this effect occur in dose dependent manner