background: sildenafil citrate may increase endometrial thickness and affect the outcome of frozen-thawed embryo transfer cycles. objective: the aim of this study was to estimate the effect of sildenafil citrate on ultrasonographic endometrial thickness and pattern and to investigate the estrogen level on the day of progesterone administration, the implantation rate and chemical pregnancy rate ...

During Assisted Reproductive Technology (ART) procedures, the transfer of a single embryo dramatically reduces the rate of multiple pregnancy. Proper information, therefore, should be delivered to patients before embryo transfer. In many countries, regulations limit, according to age of the patient, the number of embryos to be transferred. Selective fetal reduction should not be considered as a...

Background: The aim of this study was to determine the outcome of IVF/ ICSI by modification of embryo transfer technique following embryo transfer. Materials and Methods: In this randomized trial study, two groups of infertile women (n = 55) aged %40 years underwent in vitro fertilization or intracytoplasmic sperm injection treatment cycles with or without 0.2 mL of air pushed into the catheter...

  Effect of Cervical Mucus Aspiration with Insulin Syringe on Pregnancy Rate in ART Cycles     A. Aflatoonian MD1*, M. Asgharnia MD 2, N.Tabibnejad GP3     1- Associated Professor, Dept. of Gynecology, University of Medical Sciences and Research and Clinical Center of Infertility, Yazd, Iran   2- Assistant Professor, Dept. of Gynecology, Guilan University of Medical Sciences, Rasht, Iran   3- G...

BACKGROUND The aim of this study was to evaluate the impact of transferring a single top quality embryo in the first IVF/ICSI cycle of patients <38 years old who chose to have one or two embryos transferred. METHODS A total of 262 patients participated in the study, and 243 transfers were performed: 156 (64%) patients chose the transfer of a single top quality embryo, if available, and two no...

BACKGROUND It is conceivable that defective embryo hatching plays a part in the mechanisms involved in the decrease of embryo implantation rates with advancing age. In an effort to test this hypothesis, we tested the effectiveness of assisted hatching (AH) in women > or =37 years of age. METHODS We prospectively studied 103 IVF-embryo transfer patients undergoing 103 embryo transfers. All of ...

Over the years, IVF/ICSI protocols have continued to evolve with efforts to improve outcomes. As a result, treatment success may be related to certain procedural factors, including number of embryos transferred and stage at which they are transferred. This review aims to assess the safety and effectiveness of IVF/ICSI in comparison to spontaneous conception and less invasive ARTs and the impact...

Background: One of the main problems in ART is low pregnancy rates. The factors involved in successful pregnancy include; 1. mother related factors such as the status of endometrial receptivity and hormonal status of the mother. 2. embryo related factors such as; number of transferred embryo, embryo scores including: number and size of the blastomeres, and their fragmentation. The aim of the pr...