cochlear implantation is a method used for the treatment of patients with profound hearing loss. this procedure may the accompanied by some major or minor complications. we evaluated the surgical complications of cochlear implantation in fars province (south of iran). a total of 150 patients with cochlear implantation were enrolled in the present study. most of the patients were pre-lingual chi...

BACKGROUND The number of patients with longer follow-up after implantation of an implantable cardioverter-defibrillator is increasing continuously. Defibrillation lead failure is a typical long-term complication. Therefore, the long-term reliability of implantable cardioverter-defibrillator leads has become an increasing concern. The aim of the present study was to assess the annual rate of tra...

background: natural endometrium in frozen-thawed embryo transfer (fet) may have some benefits upon implantation in patients with repeated implantation failure (rif). it might be due to possible differences between natural and stimulated endometrial growth factors and cytokins secretions. objective: the objective of this study was to compare the pregnancy rate of fet on modified natural cycle ve...

Background: Integrins are heterodimeric glycoprotein receptors that regulate the interaction of cells with extracellular matrix and may have a critical role in implantation. The aim of this study was to investigate the effect of ovulation induction on the expression of α4, αv, β1, and β3 integrins in mouse blastocyst at the time of implantation. Methods: The ovarian stimulated and non-stimulate...

BACKGROUND Implantation of a left ventricular (LV) lead for cardiac resynchronisation therapy (CRT) may be challenging. Wider use of various implantation techniques increases the success rate of CRT. AIM Short-term analysis of the success rate of transvenous LV lead implantation for CRT. METHODS All CRT procedures performed in 2009 with first-time LV lead implantation attempt were analysed ...

Controlled ovarian hyperstimulation (COH) affects adversely implantation following in vitro fertilization and embryo transfer. COH with gonadotropins alters endometrial receptivity and luteal function. In addition periovulatory endometrial characteristics in stimulated cycles are considerably different compared with the natural cycles, and periovulatory secretory transformation is consistently ...

Background: It is known that acetylation level of the nuclear histones in cloned embryos is lower compare to normally developed embryos. Histone deacetylas inhibitors (HDACi) with improvement of acetylation level in these embryos can affect embryo quality in pre-implantation stage and expression level of different genes especially developmental genes. Materials and Methods: In this research, SA...

Abstract Recurrent implantation failure (RIF) is an imprecisely defined disorder lacking a robust scientific basis. The incomplete understanding of RIF provides significant diagnostic and therapeutic challenges, better the underlying issues necessary to improve outcomes. We propose novel concept termed ‘Theoretical Cumulative Implantation Rate’, calculation which based on objective data, define...

conclusions sperm quality extracted by percutaneous pesa and tese procedures increases fertility outcomes compared to naturally ejaculated sperm in men with idiopathic co. more specifically, embryo quality, which is most relevant to fertility outcome, improved when surgically extracted sperm was used for icsi. results there was a significant difference in fertilization rate, embryo quality, imp...