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      A modified ultra-long pituitary downregulation protocol improved endometrial receptivity and clinical outcome for infertile patients with polycystic ovarian syndrome.

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          Abstract

          There are currently various protocols for in vitro fertilization (IVF). For patients with polycystic ovarian syndrome (PCOS), an optimized protocol for the downregulation of pituitary follicle stimulating hormone and luteinizing hormone via gonadotropin-releasing hormone agonist (GnRHa) remains a challenge. In the present study, the primary endpoint of an ultra-long and a conventional long GnRHa protocol for intracytoplasmic sperm injection/IVF treatments of patients with PCOS was retrospectively compared. In the modified ultra-long protocol group, endometrial thickness, morphology, and blood flow were significantly improved, as compared with in the conventional long protocol group. Furthermore, the serum progestogen (P) concentrations and P/estrogen (E2) [(Px1,000/E2)] ratio on the day of human chorionic gonadotrophin administration were significantly decreased in the modified ultra-long downregulation group, whereas the pregnancy and implantation rates were significantly higher. There were no significant differences in the average number of obtained oocytes, good quality embryo rates, cancel rates, fertilization rates, abortion rates, serious ovarian hyperstimulation syndrome incidences, ectopic pregnancy rates or gonadotropin (Gn) dosages between the two groups. These results suggest that the modified ultra-long protocol plus human menopausal Gn medication may be superior to the conventional long protocol, and may lead to improved implantation and pregnancy outcomes for infertile patients with PCOS.

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          Author and article information

          Journal
          Exp Ther Med
          Experimental and therapeutic medicine
          Spandidos Publications
          1792-0981
          1792-0981
          Nov 2015
          : 10
          : 5
          Affiliations
          [1 ] Institute of Reproductive and Stem Cell Engineering, Central South University, Changsha, Hunan 410083, P.R. China ; Department of Reproductive Medicine, Reproductive and Genetic Hospital of Citic-Xiangya, Changsha, Hunan 410078, P.R. China ; Key Laboratory of Human Stem Cell & Reproductive Engineering, Ministry of Health, Changsha, Hunan 410008, P.R. China.
          [2 ] Department of Reproductive Medicine, Reproductive and Genetic Hospital of Citic-Xiangya, Changsha, Hunan 410078, P.R. China.
          Article
          ETM-0-0-2769
          10.3892/etm.2015.2769
          4665960
          26640563

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