Matches in SemOpenAlex for { <https://semopenalex.org/work/W1529647589> ?p ?o ?g. }
- W1529647589 abstract "The ICSI has become method of choice to achieve fertilization. Fertilization is possible in cases in which the sperm motility and ability to penetrate the zona pellucida are impaired. Injection is possible with sperm obtained from ejaculation, microsurgical epididymal sperm aspiration (MESA), percutaneous epididymal sperm aspiration (PESA), or testicular sperm extraction (TESE). In addition, indications for ICSI include idiopathic infertility and repeated conventional in vitro fertilization (IVF) failures [1]. Fertilization rate after ICSI is at about 70 to 80% in all ages combined [2]. This suggests that, despite injecting sperm into mature oocytes, failed fertilization still occurs. Total failed fertilization (TFF) refers to failure of fertilization in all mature oocytes and “failed fertilization” refers to failure of fertilization in any mature oocyte. Based on a considerable emotional and financial involvement in a cycle of assisted reproduction, TFF is a distressful event for the infertile couple as well as the fertility professionals. TFF occurs in 5–10% of IVF [3] and 1-3% of ICSI cycles [4]. TFF after ICSI cycles is mostly due to low number of mature oocytes [4] or oocyte activation failure [5]. TFF is a rare event in cases with normal oocytes and sperm [6]. Some patients may face repeated TFF in spite of normal sperm parameters and good ovarian response [7]. In such cases, the primary reason for failed fertilization after ICSI is lack of oocyte activation, as more than 80% of these oocytes contain a sperm [4]. Considerable advances in artificial oocyte activation and recovery of sperm from epididymis or testis, suitable for ICSI, help avoid TFF. This chapter discusses the factors affecting success rate of ICSI, highlights causes of failure and suggests remedies for failed fertilization after clinical ICSI." @default.
- W1529647589 created "2016-06-24" @default.
- W1529647589 creator A5050397069 @default.
- W1529647589 creator A5087805893 @default.
- W1529647589 date "2012-11-21" @default.
- W1529647589 modified "2023-09-30" @default.
- W1529647589 title "Intracytoplasmic Sperm Injection – Factors Affecting Fertilization" @default.
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